Media dispenser

• US 6,308,867 B1
• Filed: 08/31/1999
• Issued: 10/30/2001
• Est. Priority Date: 09/07/1998
• Status: Expired due to Fees

• Current Assignee: Aptar Radolfzell GmbH (AptarGroup Incorporated)
• Original Assignee: Ing. Erich Pfeiffer GmbH
• Inventors: Wolter, Michael
• Primary Examiner(s): Shaver, Kevin
• Assistant Examiner(s): WILLATT, STEPHANIE L
• Application Number:
  US09/387,124
• Time in Patent Office: 791 Days
• Field of Search: 224/20, 224/22, 223/216, 223/217, 223/80, 223/40
• US Class Current: 222/321.6
• CPC Class Codes: B05B 11/00444 with provision for filtering or cleaning the air flow drawn into the container
• CPC Class Codes: B05B 11/0059 allowing operation in any orientation, e.g. for discharge in inverted position
• CPC Class Codes: B05B 11/0064 Lift valves B05B11/007 takes precedence
• CPC Class Codes: B05B 11/0072 A valve member forming part of an outlet opening
• CPC Class Codes: B05B 11/1004 comprising a movable cylinder and a stationary piston
• CPC Class Codes: B05B 11/1026 the piston being deformable and its deformation allowing opening of the outlet
• CPC Class Codes: B05B 11/1053 combined with means, other than pressure, for automatically opening a valve during actuation; combined with means for automatically removing closures or covers from the discharge nozzle during actuation
• CPC Class Codes: B05B 11/107 Gate valves; Sliding valves
• CPC Class Codes: B05B 11/1074 located outside pump chambers

Abstract

The dispenser outlet (13) is microbiologically sealingly closeable by a valve stopple (25) which closes counter flow direction (11). Outlet 13 is manually reversely opened prior to the pump stroke against a spring (34). The medium reaches outlet (13) via throttles (22, 21, 49). Thus the medium creeps practically non-pressurized to an adhering face (51) of a droplet former (50). There the medium accumulates to a droplet suspending in the upside-down position. The medium contained in the dispenser (1) is effectively protected from germ contamination and the droplet may be simply administered to an eye or the like.

Claims

1. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) supplyable with the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and valve means including a control valve (20, 20c) closing said cutlet passage (14, 14c) at closing faces (27, 28, 27c, 28c) which include a first closing face (27, 27c) and a second closing face, said control valve (20, 20c) including a first valve body (25, 25c) with said first closing face (27) and a second valve body (26, 26c) with said second closing face (28, 28c), said first valve body (25, 25c) assuming valve positions including a closed position, when in said closed position said first valve body (25, 25c) sealingly engaging said second closing face (28, 28c) under a closing stress and being liftable from said second closing face (28, 28c) to open said control valve (20, 20c), for opening said control valve (20, 20c) said first valve body (25, 25c) being displaceable relative to said second closing face (28, 28c) substantially co-directional with said outlet flow direction (11, 11c), wherein said second closing face (28, 28c) is dimensionally rigid when exerted to said closing stress, said second closing face (28, 28c) enveloping said first valve body (25, 26c).

2. The dispenser according to claim 1 and further including a closure (23, 23c;

70, 70c) varying flow of the medium, wherein control means (30, 30c) are included and operate to provide at least one of sequentially opening said control valve and said closure, or sequentially closing said control valve and said closure.

3. The dispenser according to claim 1, wherein means are included for pressurizing the medium above atmospheric pressure to achieve a medium pressure upstream of said control valve (20, 20c).

4. The dispenser according to claim 1, wherein both said first and second valve bodies (25, 25c;

26, 26c) are displaceable relative to said conveying chamber (15, 15c) in a direction (12) departing from said outlet flow direction (11, 11c).

5. The dispenser according to claim 1, wherein while discharging the medium both said first and second valve bodies (25, 25c;

26, 26c) are enveloped by a shield (36, 36c).

6. The dispenser according to claim 1, wherein means (9) are included for dispensing the medium into said outlet duct (14, 14c) with an overpressure.

7. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct(14, 14c) supplyable with the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

valve means including a control valve (20, 20c) closing said outlet passage (14, 14c) at closing faces (27, 28, 27c, 28c) which include a first closing face (27, 27c) and a second closing face, said control valve (20, 20c) including a first valve body (25, 25c) with said first closing face (27) and a second valve body (26, 26c) with said second closing face (28, 28c), said first valve body (25, 25c) assuming valve positions including,a closed position, when in said closed position said first valve body (25, 25c) sealingly engaging said second closing face (28, 28c) under a closing stress and being liftable from said second closing face (28, 28c) to open said control valve (20, 20c), for opening said control valve (20, 20c) said first valve body (25, 25c) being displaceable relative to said second closing face (28, 28c) substantially codirectional with said outlet flow direction (11, 11c), wherein said second closing face (28, 28c) is dimensionally rigid when exerted to said closing stress, while opening said control valve (20, 20c) said second valve body (26, 26c) being retracted from said first closing face (27, 27c) and displaced relative to said base body (4, 4c).

8. The dispenser according to claim 7, wherein at least one closure (23, 23c;

70, 70c) is located upstream of said control valve (20, 20c), said at least one closure being openable for passing the medium towards said control valve (20, 20c).

9. The dispenser according to claim 7, wherein said valve means include a pressure relief closure (23, 23C, 70) opening upon a predetermined pressure of the medium.

10. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) supplyable with the medium from a conveying chamber(15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

valve means including a control valve (20, 20c) closing said outlet passage (14, 14c) at closing faces (27, 28, 27c, 28c) which include a first closing face (27, 27c) and a second closing face, said control valve (20, 20c) including a first valve body (25, 25c) with said first closing face (27) and a second valve body (26, 26c) with said second closing face (28, 28c), said first valve body (25, 25c) assuming valve positions including a closed position, when in said closed Position said first valve body (25, 25c) sealingly engaging said second closing face (28, 28c) under a closing stress and being liftable from said second closing face (28, 28c) to open said control valve (20, 20c), for opening said control valve (20, 20c) said first valve body (25, 25c) being displaceable relative to said second closing face (28, 28c) substantially codirectional with said outlet flow direction (11, 11c), wherein said second closing face (28, 28c) is dimensionally rigid when exerted to said closing stress, said medium outlet including an atomizing means (13, 13c) for discharging the medium atomized.

11. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, mounted on said base body;

an outlet duct (14, 14c) supplyable with the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

valve means including a control valve (20, 20c) closing said outlet passage (14, 14c) at closing faces (27, 28,27c, 28c) which include a first closing face (27, 27c) and a second closing face, said control valve (20, 20c) including a first valve body (25, 25c) with said first closing face (27) and a second valve body (26, 26c) with said second closing face (28, 28c), said first valve body (25, 25c) assuming valve positions including a closed position, when in said closed position said first valve body (25, 25c) sealingly engaging said second closing face (28, 28c) under a closing stress and being liftable from said second closing face (28, 28c) to open said control valve (20, 20c), for opening said control valve (20-20c) said first valve body (25, 25c) being displaceably relative to said second-closing face (28, 28c) substantially codirectional with said outlet flow direction (11, 11c), wherein said second closing face (28, 28c) is dimensionally rigid when exerted to said closing stress, said first valve body (25, 25c) being axially substantially rigidly connected to at least one of

said base body (4, 4c), and

a boundary (69, 72c) of said conveying chamber (15, 15c).

12. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) supplyable with the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

valve means including a control valve (20, 20c) closing said outlet passage (14, 14c) at closing faces (27, 28, 27c, 28c) which include a first closing face (27, 27c) and a second closing face, said control valve (20, 20c) including a first valve body (25, 25c) with said first closing face (27) and a second valve body (26, 26c) with said second closing face (28, 28c), said first valve body (25, 25c) assuming valve positions including a closed position, when in said closed position said first valve body (25, 25c) sealingly engaging said second closing face (28, 28c) under a closing stress and being liftable from said second closing face (28, 28c) to open said control valve (20, 20c), for opening said control valve (20, 20c) said first valve body (25, 25c) being displaceable relative to said second closing face (28, 28c) substantially codirectional with said outlet flow direction (11, 11c) wherein said second closing face (28, 28c) is dimensionally rigid when exerted to said closing stress, said second valve body (26, 26c) including a guide member (45, 45c) enveloping said first valve body (25, 25c) and operably radially tensioned.

13. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) supplyable with the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

valve means including a control valve (20, 20c) closing said outlet passage (14, 14c) at closing faces (27, 28, 27c, 28c) which include a first closing face (27, 27c) and a second closing face, said control valve (20, 20c) including a first valve body (25, 25c) with said first closing face (27) and a second valve body (26, 26c) with said second closing face (28, 28c), said first valve body (25, 25c) assuming valve positions including a closed position, when in said closed position said first valve body (25, 25c) sealingly engaging said second closing face (28, 28c) under a closing stress and being liftable from said second closing face (28, 28c) to open said control valve (20, 20c), for opening said control valve (20, 20c) said first valve body (25, 25c) being displaceable relative to said second closing face (28, 28c) substantially codirectional with said outlet flow direction (11, 11c), wherein said second closing face (28, 28c) is dimensionally rigid when exerted to said closing-stress, a stop (48, 48c) being included for substantially rigidly limiting opening of said control valve (20, 20c).

14. The dispenser according to claim 13, wherein said base body (14) is actuated via said stop (48, 48c) over a pressurizing path for pressurizing the medium.

15. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) supplyable with the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

valve means including a control valve (20, 20c) closing said outlet passage (14, 14c) at closing faces (27, 28, 27c, 28c) which include a first closing face (27, 27c) and a second closing face, said control valve (20, 20c) including a first valve body (25, 25c) with said first closing face (27) and a second valve body (26, 26c) with said second closing face (28, 28c), said first valve body (25, 25c) assuming valve positions including a closed position, when in said closed position said first valve body (25, 25c) sealingly engaging said second closing face (28, 28c) under a closing stress and being liftable from said second closing face (28, 28c) to open said control valve (20, 20c), for opening said control valve (20, 20c) said first valve body (25, 25c) being displaceable relative to said second closing face (28, 28c) substantially codirectional with said outlet flow direction (11, 11c), wherein said second closing face (28, 28c) is dimensionally rigid when exerted to said closing stress, said first and second valve bodies (25, 26, 25c, 26c) being displaceable relative to said base body (4, 4c) with said discharge actuator (8, 8c) and with a discharge head (40, 40c) including said medium outlet (13, 13c).

16. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) supplyable with the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

valve means including a control valve (20, 20c) closing said outlet passage (14, 14c) at closing faces (27, 28, 27c, 28c) which include a first closing face (27, 27c) and a second closing face, said control valve (20, 20c) including a first valve body (25, 25c) with said first closing face (27) and a second valve body (26, 26c) with said second closing face (28, 28c), said first valve body (25, 25c) assuming valve positions including a closed-position, when in said closed position said first valve body (25, 25c) sealingly engaging said second closing face (28, 28c) under a closing stress and being liftable from said second closing face (28, 28c) to open said control valve (20, 20c), for opening said control valve (20, 20c) said first valve body (25, 25c) being displaceable relative to said second closing face (28, 28c) substantially codirectional with said outlet flow direction (11, 11c), wherein said second closing face (28, 28c) is dimensionally rigid when exerted to said closing stress, a discharge head (40, 40c) being included and including said medium outlet (13, 13c), said base body (4) extending inside said discharge head (40, 40c) substantially codirectional with said outlet flow direction (11, 11c).

17. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) supplyable with the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c) and

valve means including a control valve (20, 20c) closing said outlet passage (14, 14c) at closing faces (27, 28, 27c, 28c) which include a first closing face (27, 27c) and a second closing face, said control valve (20, 20c) including a first valve body (25, 25c) with said first closing face (27) and a second valve body (26, 26c) with said second closing face (28, 28c), said first valve body (25, 25c) assuming valve positions including a closed position, when in said closed position said first valve body (25, 25c) sealingly engaging said second closing face (28, 28c) under a closing stress and being liftable from said second closing face (28, 28c) to open said control valve (20, 20c), for opening said control valve (20, 20c) said first valve body (25, 25c) being displaceable relative to said second closing face (28, 28c) substantially codirectional with said outlet flow direction (11, 11c), wherein said second closing face (28, 28c) is dimensionally rigid when exerted to said closing stress, means (9) being included for dispensing the medium into said outlet duct (14, 14c) with an overpressure, said overpressure means (9) including a pressurizing cylinder (64) displaceable with said discharge actuator (8) and commonly with said base body (4) and said medium outlet (23) relative to a support (5, 5c), said support (5) including a shaft (17, 85) extending away from said pressurizing cylinder (64).

18. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) supplyable with the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

valve means including a control valve (20, 20c) closing said outlet passage (14, 14c) at closing faces(27, 28, 27c, 28c) which include a first closing face (27, 27c) and a second closing face, said control valve (20, 20c) including a first valve body (25, 25c) with said first closing face (27) and a second valve body (26, 26c) with said second closing face (28, 28c), said first valve body (25, 25c) assuming valve positions including a closed position, when in said closed position said first valve body (25, 25c) sealingly engaging said second closing face (28, 28c) under a closing stress and being liftable from said second closing face (28, 28c) to open said control valve (20, 20c), for opening said control valve (20, 20c) said first valve body (25, 25c) being displaceable relative to said second closing face (28, 28c) substantially codirectional with said outlet flow direction (11, 11c), wherein said second closing face (28, 28c) is dimensionally rigid when exerted to said closing stress, a prechamber (6, 16) for the medium being included, said prechamber (6, 16) being located upstream of said conveying chamber (15) and delivering dosed amounts of the medium to said conveying chamber (15) via flow control means (70).

19. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) supplyable with the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

valve means including a control valve (20, 20c) closing said-outlet passage (14, 14c) at closing faces (27, 28, 27c, 28c) which include a first closing face (27, 27c) and a second closing face, said control valve (20, 20c) including a first valve body (25, 25c) with said first closing face (27) and a second valve body (26, 26c) with said second closing face (28, 28c), said first valve body (25, 25c) assuming valve positions including a closed position when in said closed position said first valve body (25, 25c) sealingly engaging said second closing face (28, 28c) under a closing stress and being liftable from said second closing face (28, 28c) to open said control valve (20, 20c), for opening said control valve (20, 20c) said first valve body (25, 25c) being displaceable relative to said second closing face (28, 28c) substantially co-directional with said outlet flow direction (11, 11c), wherein said second closing face (28, 28c) is dimensionally rigid when exerted to said closing stress, means for refilling said conveying chamber (15, 15c) from a reservoir (6) and venting means (18, 18c) for venting the reservoir (6) through said base base body (4, 40) being included, said venting means (18, 18c) including at least one of

germicides for sterilizing the medium,

a germicidal filter (80, 80c) for sterilizing said venting means (18, 18c), and

a vent valve (24, 24c).

20. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8) mounted on said base body;

an outlet duct (14, 14c) supplyable with the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

valve means including a control valve (20, 20c) closing said outlet passage (14, 14c) at closing faces (27, 28, 27c, 28c) which include a first closing face (27, 27c) and a second closing face, said control valve (20, 20c) including a first valve body (25, 25c) with said first closing face (27) and a second valve body (26, 26c) with said second closing face (28, 28c), said first valve body (25, 25c) assuming valve positions including a closed position, when in said closed position said first valve body (25, 25c) sealingly engaging said second closing face (28, 28c) under a closing stress and being liftable from said second closing face (28, 28c) to open said control valve (20, 20c), for opening said control valve (20, 20c) said first valve body (25, 25c) being displaceable relative to said second closing face (28, 28c) substantially codirectional with said outlet flow direction (11, 11c), wherein said second closing face (28, 28c) is dimensionally rigid when exerted to said closing stress, a connector (86) for connecting said dispenser (1) to a reservoir (6) and a sealing flange (7) attached to said connector (86) being included, said sealing flange (7) including at least one of

a vent duct (81) for venting the reservoir (6), and

a connecting member (85) for connecting said sealing flange (7) to a riser duct (17).

21. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) supplyable with the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 11c) and defining an outlet flow direction (11, 11c) and

valve means including a control valve (20, 20c) closing said outlet passage (14, 14c) at closing faces (27, 28, 27c, 28c) which include a first closing face (27, 27c) and a second closing face, said control valve (20, 20c) including a first valve body (25, 25c) with said first closing face (27) and a second valve body (26, 26c) with said second closing face (28, 28c), said first valve body (25, 25c) assuming valve positions including a closed position, when in said closed position said first valve body (25, 25c) sealingly engaging said second closing face (28, 28c) under a closing stress and being liftable from said second closing face (28, 28c) to open said control valve (20, 20c), for opening said control valve (20, 20c) said first valve body (25, 25c) being displaceable relative to said second closing face (28, 28c) substantially codirectional with said outlet flow direction (11, 11c), wherein said second closing face (28, 28c) is dimensionally rigid when exerted to said closing stress, said first valve body (25, 25c) including a valve head (32) and a valve shaft (33) carrying said valve head (32), said valve head (32) including end faces (27, 51) which include said first closing face (27) circumferentially connecting to said valve shaft (33) and a second end face (51) remote from said first closing face (27), at least one of said end faces (27, 51) being non-spherical.

22. A dispenser for discharging media comprising:

base body (4, 4a, 4b, 4c);

discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) supplyable with the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

valve means including a control valve (20, 20c) closing said outlet passage (14, 14c) at closing faces (27, 28, 27c, 28c) which include a first closing face (27, 27c) and a second closing face, said control valve (20, 20c) including a first valve body (25, 25c) with said first closing face (27) and a second valve body (26, 26c) with said second closing face (28, 28c), said first valve body (25, 25c) assuming valve positions including a closed position, when in said closed position said first valve body (25, 25c) sealingly engaging said second closing face (28, 28c) under a closing stress and being liftable from said second closing face (28, 28c) to open said control valve (20, 20c), for opening said control valve (20, 20c) said first valve body (25, 25c) being displaceable relative to said second closing face (28, 28c) substantially codirectional with said outlet flow directional (11, 11c), wherein said second closing face (28, 28c) is dimensionally rigid when exerted to said closing stress, said first valve body (25, 25c) including a valve head (32) including said first closing face (27, 27c) and an end face (51, 51c) remote from said first closing face (27, 27c), said first closing face and said end face (51, 51c) being interconnected by an annular edge (52, 52c).

23. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) supplyable with the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

valve means including a control valve (20, 20c) closing said outlet passage (14, 14c) at closing faces (27, 28, 27c, 28c) which include a first closing face (27, 27c) and a second closing face, said-control valve (20, 20c) including a first valve body (25, 25c) with said first closing face (27) and a second valve body (26, 26c) with said second closing face (28, 28c) said first valve body (25, 25c) assuming valve positions including a closed position, when in said closed position said first valve body (25, 25c) sealingly engaging said second closing face (28, 28c) under a closing stress and being liftable from said second closing face (28, 28c) to open said control valve (20, 20c), for opening said control valve (20, 20c) said first valve body (25, 25c) being displaceable relative to said second closing face (28, 28c) substantially codirectional with said outlet flow direction (11, 11c), wherein said second closing face (28, 28c) is dimensionally rigid when exerted to said closing-stress, a filter, and means being included for crushing out said filter (80).

24. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted for movement on said base body;

an outlet duct (14, 14c) supplyable with the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

a discharge head (40, 40c) separate from said discharge actuator (8, 8a, 8b, 8c), said discharge head including said medium outlet (13, 13c), wherein said base body (4) extends inside said discharge head (40, 40c) substantially codirectional with said outlet flow direction (11, 11c).

25. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) supplyable with the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

means (9) for dispensing the medium into said outlet duct (14, 14c) with an overpressure, wherein said overpressure means (9) include a pressurizing cylinder (64) displaceable with said discharge actuator (8) and commonly with said base body (4) and said medium outlet (23) relative to a support (5, 5c), said support (5, 5c) including a shaft (17, 85) extending away from said pressurizing cylinder (64).

26. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) for receiving the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

means for refilling said conveying chamber (15, 15c) from a reservoir (6),

wherein venting means (18, 18c) are included for venting the reservoir (6) through said base body (4, 4c), said venting means (18, 18c) including at least one of

germicides for sterilizing the medium,

a germicidal filter (80, 80c) for sterilizing said venting means (18, 18c), and

a vent valve (24, 24c).

27. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) for receiving the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

a connector (86) for connecting said dispenser (1) to a reservoir (6),

wherein a sealing flange (7) is included and attached to said connector (86), said sealing flange (7) including at least one of

a vent duct (81) for venting the reservoir (6), and

a connecting member (85), comprising a component separate from said sealing flange (7), for connecting said sealing flange (7) to a riser duct (17).

28. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) for receiving the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

a droplet former (50) for dispensing the medium by a droplet adhering to said droplet former (50), said droplet former (50) including a former head including a first face (27, 27c) and an end face (51, 51c) remote from said first face (27, 27c),

wherein said first face (27, 27c) and said end face (51, 51c) are interconnected by an annular edge (52, 52c).

29. A dispenser for discharging media comprising:

a base body (4, 4a, 4b, 4c);

a discharge actuator (8, 8a, 8b, 8c) mounted on said base body;

an outlet duct (14, 14c) for receiving the medium from a conveying chamber (15, 15c), said outlet duct (14, 14c) ending in a medium outlet (13, 13c) and defining an outlet flow direction (11, 11c), and

a filter (80), wherein means are included for crushing out said filter (80).