Method and mechanical, electrical, or electronic apparatus for dispensing, issuing, or diffusing medicines, fragrances or other liquid or visous substances in the liquid phase or in the gaseous phase

• US 5,221,025 A
• Filed: 05/24/1990
• Issued: 06/22/1993
• Est. Priority Date: 05/31/1989
• Status: Expired due to Fees

• Current Assignee: Conceptair Anstalt
• Original Assignee: Conceptair Anstalt
• Inventors: Privas, Yves E.
• Primary Examiner(s): Kashnikow, Andres
• Assistant Examiner(s): Derakshani, Philippe
• Application Number:
  US07/527,810
• Time in Patent Office: 1,125 Days
• Field of Search: 222/1, 222/39, 222/146.5, 222/190, 222/333, 222/504, 222/505, 222/509, 222/649, 239/72, 239/73, 239/102.2, 239/102.1, 239/274, 251/129.01, 251/129.15, 251/129.2, 251/, 392/390, 392/392, 392/400, 335/248, 128/200.16, 221/2
• US Class Current: 222/1
• CPC Class Codes: B05B 11/1052 Actuation means locking means therefor B05B11/1059; the dispensing stroke being affected by the stored energy of a spring B05B11/109
• CPC Class Codes: B05B 11/1056 comprising rotatable or articulated levers B05B11/1053 takes precedence; lever actuated piston pumps B05B11/1009; lever actuated pumps with deformable chamber B05B11/1029
• CPC Class Codes: B05B 7/168 with means for heating or cooling after mixing B05B7/201, B05B7/22 take precedence
• CPC Class Codes: B05B 7/1686 involving vaporisation of the material to be sprayed or of an atomising-fluid-generating product

Abstract

A method of dispensing, issuing, or diffusing a liquid (volatile or otherwise) without using a propellant gas, the liquid being a perfume, a cosmetic, an insecticide, or a medicine, for example. The method consists in using a pump type spray head where a liquid is sprayed by being expelled under pressure through a nozzle, and being characterized by the use of a mechanical device during the expulsion stage for obtaining an instantaneous pressure which causes a dose or a spray to be delivered comparable to an aerosol of the type obtained when using a compressed or liquefied propellant gas i.e. an aerosol in which the particles of divided liquid are not greater than 45 microns in size in the liquid phase, and are less than 1 micron in the gas phase, after spraying has occurred, and without spoiling the sprayed substances. The invention also relates to an exclusive or protective system which is personalized by encoding-decoding means that may be mechanical, electronic, or both, assisted by means of an audio-electronic speech synthesis system.

Claims

1. A method of dispensing, issuing, or diffusing a liquid from a dispenser which expels liquid through a nozzle of a spray pump which has a liquid delivery piston, the method comprising the steps of:

providing the pump, said pump being fluidly coupled to the liquid to be sprayed;

providing a mechanical means for actuating the pump so as to expel the liquid, said mechanical means comprising a plunger controlled by a solenoid, wherein said plunger is adapted to contact the pump and is disposed a predetermined distance d away from the pump, said predetermined distance d being in the range of about 0.5 to 1.0 times the stroke of the pump; and

actuating said mechanical means so as to permit said mechanical means to accelerate through said predetermined distance d prior to engaging and actuating the pump thereby producing a spray in which the particles of fractionated liquid are not greater than about 45 microns in diameter, depending on the surface tension of the expelled liquid, so as to substantially simulate the fine spraying characteristics achieved by an aerosol.

2. A method according to claim 1, wherein the pump has a volume which lies in the range of about 5 microliters to about 100 microliters, and wherein said actuating step comprises actuating said mechanical means so as to cause expulsion of the liquid in a period of time no greater than 10 milliseconds.

3. A method according to claim 2, further comprising the step of directing said spray towards a smooth surface in order to cause the particles to be fractionated by impact against said smooth surface, thereby obtaining particles of said fractionated liquid having a diameter no greater than about 1 micron, said smooth surface being heated to a predetermined temperature above the vaporization temperature of the liquid.

4. A method according to claim 3, wherein said smooth surface is a ceramic material, and wherein said method further comprises the steps of:

providing a vibrating means for vibrating said smooth surface, said vibrating means comprising a piezoelectric ultrasonic transducer; and

vibrating said smooth surface.

5. The method according to claim 1, wherein said actuating step comprises repetitively actuating said mechanical means at a fast rate so as to produce pseudo-continuous operation.

8. A diffuser according to claim 6 or 1, further comprising control means for controlling said mechanical actuator means on a stroke-by-stroke basis.

6. A diffuser having a spray pump, said spray pump including a liquid delivery piston and having a volume lying in the range of about 5 microliters to 100 microliters, a pump activating pushbutton (4, 50) for transmitting a force to the liquid delivery piston of the pump when thrust is applied thereon, a return spring returning the liquid delivery piston towards a rest position, and an outlet spray nozzle for fractionating a liquid by the pressure effect, said diffuser comprising:

the pump;

mechanical actuator means (10, 12-22,

     26) comprising a plunger controlled by a solenoid, said plunger being disposed a predetermined distance d from the pump for applying thrust on the pump activating pushbutton for a period of time shorter than about 10 milliseconds;

wherein

said predetermined distance d is in the range of about 0.5 to 1.0 times the stroke of the pump; and

wherein

said plunger accelerates from a rest state through said predetermined distance d prior to striking said pump activating pushbutton wherein said pump thereby produces a spray in which the particles of fractioned liquid are not greater than about 45 microns in diameter, depending on the surface tension of the expelled liquid, so as to substantially simulate the fine spraying characteristics achieved by an aerosol.

7. A diffuser according to claim 6, further comprising repetitive control means for repetitively operating said mechanical actuator means at a fast rate so as to produce pseudo-continuous operation.

9. A diffuser according to claim 6, further comprising:

a housing for fixedly supporting said mechanical actuator means and for receiving a receptacle fixedly connected to the pump; and

keying means comprising a first relief portion (79,

     80) disposed surrounding the pump and operatively coupled to said receptacle and a second relief portion located within said housing for ensuring that only appropriate receptacles having complementary ones of said first and second relief portions can be admitted into said housing.

10. A diffuser according to claim 6, further comprising electronic means for emitting sound signals, wherein said sound signals comprise synthesized voice messages.

11. A diffuser according to claim 6, further comprising a shock absorber (15, 114, 115) for dampening the motion of said plunger, said shock absorber comprising a material selected from a group consisting of rubber, compressed metal cloth and corrugated metal.

12. A diffuser having a spray pump, said spray pump including a liquid delivery piston and having a volume lying in the range of about 5 microliters to 100 microliters, a pump activating pushbutton (4, 50) for transmitting a force to the liquid delivery piston of the pump when said force is applied thereon, a return spring returning the liquid delivery piston towards a rest position, and an outlet spray nozzle for fractionating a liquid by the pressure effect, said diffuser comprising:

the pump;

mechanical actuator means (10, 12-22,

     26) disposed a predetermined distance d from the pump for applying said force on the pump activating pushbutton for a period of time shorter than about 10 milliseconds;

wherein said predetermined distance d is in the range of about 0.5 to 1.0 times the stroke of the pump;

wherein said mechanical actuator means accelerates from a rest state through said predetermined distance d prior to striking said pump activating pushbutton;

wherein said mechanical actuator means for the pump is a plunger (10) controlled by a solenoid; and

wherein said mechanical actuator means includes at least two magnets (86,

     87) whose relative positions give rise to mutual attraction or repulsion.

14. A diffuser according to claim 6, 12, or 13, further comprising:

a smooth surface for fractionating the liquid; and

heating means (32, 44,

     45) for heating said smooth surface to a constant temperature.

15. A diffuser according to claim 6, 12 or 13, further comprising means for establishing a flow of air around and inside the spray and in the same direction as the spray.

16. A diffuser according to claim 14, wherein said heater means is servo-controlled to provide a temperature at a value above the vaporization temperature of said liquid.

17. A diffuser according to claim 14, further comprising means for establishing a flow of air around and inside the spray and in the same direction as the spray.

18. A diffuser according to claim 17, wherein said heater means is servo-controlled to provide a temperature at a value above the vaporization temperature of said liquid.

13. A diffuser having a spray pump, said spray pump including a liquid delivery piston and having a volume lying in the range of about 5 microliters to 100 microliters, a pump activating pushbutton (4, 50) for transmitting a force to the liquid delivery piston, of the pump when said force is applied thereon, a return spring returning the liquid delivery piston towards a rest position, and an outlet spray nozzle for fractionating a liquid by the pressure effect, said diffuser comprising:

the pump;

mechanical actuator means (10, 12-22,

     26) disposed a predetermined distance d from the pump for applying said force on the pump activating pushbutton for a period of time shorter than about 10 milliseconds;

wherein said predetermined distance d is in the range of about 0.5 to 1.0 times the stroke of the pump; and

wherein said mechanical actuator means accelerated from a rest state through said predetermined distance d prior to striking said pump activating pushbutton;

wherein said mechanical actuator means for the pump is a plunger (10) controlled by a solenoid and said mechanical actuator means further comprises a plurality of permanent magnets (14) magnetically coupled to said plunger, said permanent magnets providing an attractive force to said plunger (10) which is less than or equal to a spring force provided by the return spring of the pump.

19. A diffuser having a spray pump, said spray pump including a liquid delivery piston and having a volume lying in the range of about 5 microliters to 100 microliters, a pump activating pushbutton (4, 50) for transmitting a force to the liquid delivery piston of the pump when said force is applied thereon, a return spring returning the liquid delivery piston towards a rest position, and an outlet spray nozzle for fractionating a liquid by the pressure effect, said diffuser comprising:

the pump;

mechanical actuator means (10, 22-22,

     26) disposed a predetermined distance d from the pump for applying said force on the pump activating pushbutton for a period of time shorter than about 10 milliseconds;

wherein said predetermined distance d is in the range of about 0.5 to 1.0 times the stroke of the pump;

wherein said mechanical actuator means accelerates from a rest state through said predetermined distance d prior to striking said pump activating pushbutton;

wherein said mechanical actuator means for the pump is a plunger (10) controlled by a solenoid and said mechanical actuator means; and

wherein said plunger includes a rod (64) of a non-magnetic material fixedly coupled to at least one of a plurality of magnets (66, 67,

     68) and a plurality of inertia masses (85) of non-magnetic material.

20. A diffuser having a spray pump, said spray pump including a liquid delivery piston and having a volume lying in the range of about 5 microliters to 100 microliters, a pump activating pushbutton (4, 50) for transmitting a force to the liquid delivery piston of the pump when said force is applied thereon, a return spring returning the liquid delivery piston towards a rest position, and an outlet spray nozzle for fractionating a liquid by the pressure effect, said diffuser comprising:

the pump;

mechanical actuator means (10, 12-22,

     26) disposed a predetermined distance d from the pump for applying said force on the pump activating pushbutton for a period of time shorter than about 10 milliseconds;

a housing for fixedly supporting said mechanical actuator means and for receiving a receptacle fixedly connected to the pump; and

keying means comprising a first relief portion (79,

     80) disposed surrounding the pump and operatively coupled to said receptacle and a second relief portion located within said housing for ensuring that only appropriate receptacles having complementary ones of said first and second relief portions can be admitted into said housing;

wherein said predetermined distance d is in the range of about 0.5 to 1.0 times the stroke of the pump;

wherein said mechanical actuator means accelerates from a rest state through said predetermined distance d prior to striking said pump activating pushbutton;

wherein said mechanical actuator means for the pump is a plunger (10) controlled by a solenoid and said mechanical actuator means; and

wherein said keying means further comprises electronic keying means for ensuring that only a selected said receptacle is admitted to said housing, said electronic means comprising at least one magnet and at least one magnet sensor disposed so as to oppose one another when said selected receptacle is located in said housing.

21. The diffuser having a spray pump, said spray pump including a liquid delivery piston and having a volume lying in the range of about 5 microliters to 100 microliters, a pump activating pushbutton (4, 50) for transmitting a force to the liquid delivery piston of the pump when said force is applied thereon, a return spring returning the liquid delivery piston towards a rest position, and an outlet spray nozzle for fractionating a liquid by the pressure effect, said diffuser comprising:

the pump;

mechanical actuator means (10, 12-22,

     26) disposed a predetermined distance d from the pump for applying said force on the pump activating pushbutton for a period of time shorter than about 10 milliseconds;

wherein said predetermined distance d is in the range of about 0.5 to 1.0 times the stroke of the pump;

wherein said mechanical actuator means accelerates from a rest state through said predetermined distance d prior to striking said pump activating pushbotton;

wherein said mechanical actuator means for the pump is a plunger (10) controlled by a solenoid and said mechanical actuator means; and

wherein said plunger includes a core of a magnetic material extending between a rod of a non-magnetic material and a washer of said magnetic material.

22. The diffuser according to claim 21, wherein said magnetic material is soft iron.

23. A diffuser having a spray pump, said spray pump including a liquid delivery piston and having a volume lying in the range of about 5 microliters to 100 microliters, a pump activating pushbutton for transmitting force to the liquid delivery piston of the pump when thrust is applied thereon, a return spring returning the liquid delivery piston towards a rest position, and an outlet spray nozzle for fractionating a liquid by the pressure effect, said diffuser comprising:

the pump;

mechanical actuator means disposed a predetermined distance d from the pump for applying thrust on the pump activating pushbutton for a period of time shorter than about 10 milliseconds;

wherein

said mechanical actuator means for the pump is a plunger controlled by a solenoid;

said mechanical actuator means includes at least two magnets whose relative positions give rise to mutual attraction or repulsion;

said predetermined distance d is in the range of about 0.5 to 1.0 times the stroke of the pump; and

wherein

said mechanical actuator means accelerates from a rest state through said predetermined distance d prior to striking said pump activating pushbutton.

24. A diffuser having a spray pump, said spray pump including a liquid delivery piston and having a volume lying in the range of about 5 microliters to 100 microliters, a pump activating pushbutton for transmitting force to the liquid delivery piston of the pump when thrust is applied thereon, a return spring returning the liquid delivery piston towards a rest position, and an outlet spray nozzle for fractionating a liquid by the pressure effect, said diffuser comprising:

the pump;

mechanical actuator means disposed a predetermined distance d from the pump for applying thrust on the pump activating pushbutton for a period of time shorter than about 10 milliseconds; and

a plurality of permanent magnets magnetically coupled to said plunger, said permanent magnets providing an attractive force to said plunger which is less than or equal to a spring force provided by the return spring of the pump;

wherein

said mechanical actuator means for the pump is a plunger controlled by a solenoid;

said predetermined distance d is in the range of about 0.5 to 1.0 times the stroke of the pump; and

wherein

said mechanical actuator means accelerates from a rest state through said predetermined distance d prior to striking said pump activating pushbutton.

25. A diffuser having a spray pump, said spray pump including a liquid delivery piston and having a volume lying in the range of about 5 microliters to 100 microliters, a pump activating pushbutton for transmitting force to the liquid delivery piston of the pump when thrust is applied thereon, a return spring returning the liquid delivery piston towards a rest position, and an outlet spray nozzle for fractionating a liquid by the pressure effect, said diffuser comprising:

the pump;

mechanical actuator means disposed a predetermined distance d from the pump for applying thrust on the pump activating pushbutton for a period of time shorter than about 10 milliseconds;

wherein

said mechanical actuator means for the pump is a plunger controlled by a solenoid;

said predetermined distance d is in the range of about 0.5 to 1.0 times the stroke of the pump; and

wherein

said plunger includes a rod of a non-magnetic material fixedly coupled to at least one of a plurality of magnets and a plurality of inertia masses of non-magnetic material; and

said mechanical actuator means accelerates from a rest state through said predetermined distance d prior to striking said pump activating pushbutton.

26. A method of dispensing, issuing, or diffusing a liquid from a dispenser which expels liquid through a nozzle of a spray pump under internal pressure, the method comprising the steps of:

providing the pump, said pump being fluidly coupled to the liquid to be sprayed;

providing a mechanical means for actuating the pump so as to expel the liquid, wherein a portion of said mechanical means adapted to contact the pump is disposed a predetermined distance d away from the pump, said predetermined distance d being in the range of about 0.5 to 1.0 times the stroke of the pump;

actuating said mechanical means so as to permit said mechanical means to accelerate through said predetermined distance d prior to actuating the pump thereby producing a force delivered to said pump so as to provide a liquid spray in which the particles of fractionated liquid are not greater than about 45 microns in diameter, depending on the surface tension of the expelled liquid; and

directing said liquid spray towards a smooth surface heated to a temperature greater than the vaporization temperature of the liquid so as to convert said liquid spray to a gas.

27. A diffuser having a spray pump, said spray pump including a liquid delivery piston and having a volume lying in the range of about 5 microliters to 100 microliters, a pump activating pushbutton for transmitting a force to the liquid delivery piston of the pump when said force is applied thereon, and a return spring returning the liquid delivery piston towards a rest position, said diffuser comprising:

the pump;

mechanical actuator means disposed a predetermined distance d from the pump for applying said force on the pump activating pushbutton for a period of time shorter than about 10 milliseconds;

an outlet spray nozzle for fractionating a liquid by the pressure effect so as to produce a liquid spray having a particle size in a range of about 45 microns;

a smooth surface positioned across said liquid spray; and

heating means for heating said smooth surface to a constant temperature greater than the vaporization temperature of the liquid;

wherein

said predetermined distance d is in the range of about 0.5 to 1.0 times the stroke of the pump;

wherein

said mechanical actuator means accelerates from a rest state through said predetermined distance d so as to generate said force prior to striking said pump activating pushbutton;

whereby

said smooth surface and said heating means are operable for converting said liquid spray to a gas.