Non-aerosol continuous spray dispenser

• US 4,175,704 A
• Filed: 09/19/1977
• Issued: 11/27/1979
• Est. Priority Date: 02/17/1976
• Status: Expired due to Term

• Current Assignee: Milton J. Cohen
• Original Assignee: Milton J. Cohen
• Inventors: Cohen, Milton J.
• Primary Examiner(s): Marbert, James B.
• Application Number:
  US05/834,250
• Time in Patent Office: 799 Days
• Field of Search: 239/331, 239/330, 239/333, 239/320, 222/321, 222/386, 128/237, 128/250, 128/249
• US Class Current: 239/320
• CPC Class Codes: A61F 9/0008 Introducing ophthalmic products into the ocular cavity or retaining products therein putting in contact lenses A61F9/0061; introducing or retaining media in cavities of the body in general A61M31/00
• CPC Class Codes: A61M 11/02 operated by air or other gas pressure applied to the liquid or other product to be sprayed or atomised sprayers for horticulture A01G, A01H; killing insects A01M; air humidifying by nozzles F24F6/14, F24F6/18; cooling by spraying F28B, F28C
• CPC Class Codes: B05B 11/02 Membranes or pistons acting on the contents inside the container, e.g. follower pistons
• CPC Class Codes: B05B 11/048 characterised by the container, e.g. this latter being surrounded by an enclosure, or the means for deforming it B05B11/041, B05B11/046 take precedence
• CPC Class Codes: B65D 83/0044 the piston having a dispensing opening formed in the piston B65D83/0016 takes precedence
• CPC Class Codes: F04B 43/08 having tubular flexible members F04B43/12 takes precedence

Abstract

A non-aerosol type spray device comprising a container for housing a liquid content material to be dispensed and a plunger slidable as a piston within the container and an elongate tubular member for actuating the plunger with a bore extending continuously therethrough for communication with the interior of the container at one end and communnication with a spray nozzle at the other for passage of the liquid content material from the container through the bore to the spray nozzle in response to displacement of the plunger.

Claims

1. A portable hand operated non-aerosol spray device comprising an unsupported elongate container, a plunger slidable within the container in sealing engagement with the side walls of the container, an elongate tubular member having a passage extending continuously therethrough, one end of the tubular member extending through the plunger for communication with the interior of the container, a spray nozzle communicating with the bore at the other end of the tubular member for dispensing liquid material which passes from the interior of the container through the bore of the tubular member to the nozzle in response to decrease in volume occupied by the liquid between the plunger and the bottom of the container, means for effecting relative movement between the plunger and the container limited to the direction towards each other for continued reduction in volume between the plunger and the bottom wall of the container, said means providing a finger grip forming a part of the portable device.

2. A spray device as claimed in claim 1 in which the container is of cylindrical shape and the plunger is in the form of a piston operating within the cylinder.

3. A spray device as claimed in claim 1 in which the plunger is formed of a resilient material having a corrugated peripheral surface for multiple sealing engagement with the inner wall of the container.

4. A spray device as claimed in claim 1 in which the tubular member is dimensioned to have a length at least as great as the length of the stroke of the plunger within the container to enable displacement of the plunger by the tubular member through the interior of the container.

5. A spray device as claimed in claim 1 in which the means for actuating the plunger for displacement in the container comprises means operatively engaging the tubular member for displacement of the tubular member as a piston rod.

6. A spray device as claimed in claim 5 in which the means engaging the tubular member for displacement of the plunger comprises a rigid bracket connected to the tubular member at the upper end portion thereof and extending downwardly to embrace the outer wall of the container.

7. A spray device as claimed in claim 6 in which the bracket includes finger grips extending outwardly from the lower end portion thereof.

8. A spray device as claimed in claim 6 in which the bracket comprises a cylindrical member having a diameter greater than the outer wall to wall diameter of the container to receive the container in telescoping relation therein.

9. A spray device as claimed in claim 1 which includes a pressure responsive valve communicating the bore with the spray nozzle.

10. A spray device as claimed in claim 1 which includes an adapter fixed to the container shaped to be received in the open end of a nostril for use as a nose spray and in which the nozzle forms a part of the adapter.

11. A spray device as claimed in claim 10 in which the adapter is of parabolic shape with the spray nozzle located with its exit at the apex end thereof.

12. A spray device as claimed in claim 1 which includes an adapter fixed to the container in communication with the spray nozzle shaped to correspond to an eye cup.

13. A spray device as claimed in claim 12 in which the adapter is in the form of a concave section with the spray nozzle in the base thereof.

14. A spray device as claimed in claim 13 in which the concave section faces in a direction perpendicular to the axis of the container.