Non-aerosol continuous spray dispenser

• US 4,067,499 A
• Filed: 02/17/1976
• Issued: 01/10/1978
• 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): Love, John J.
• Assistant Examiner(s): Mar, Michael
• Application Number:
  US05/658,469
• Time in Patent Office: 693 Days
• Field of Search: 239/323, 239/327, 239/328, 222/183, 222/319, 222/386, 222/95, 222/105, 222/182, 222/215, 128/249
• US Class Current: 239/323
• 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 11/007 Syringe-type or piston-type sprayers or atomisers
• 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 communication 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 non-aerosol spray device comprising a housing consisting of an upper rigid tubular section open at the bottom and closed at the top with a top wall having an outlet opening, and a lower corrugated tubular section formed of a flexible material open at the top and closed at the bottom in which the upper open end portion of the lower tubular section is fixed to the lower open end portion of the upper tubular section to define the housing therebetween, a collapsible cartridge containing fluid to be dispensed dimensioned to be received within the enclosure and having an outlet at the upper end in communication with the outlet opening, the bottom wall of the lower flexible section having a rigid portion dimensioned to be less in cross-section than the interior of the upper tubular section by an amount greater than twice the thickness of the wall of the lower section to enable displacement of the rigid portion of the bottom wall therethrough, said lower section being dimensioned to have a length corresponding to the length of the upper section to enable the rigid portion of the bottom wall to be displaced axially through the interior of the upper section for substantially complete collapsing of the cartridge and a spray nozzle fixed to the top wall of the upper tubular section in communication with the outlet opening.

2. A spray device as claimed in claim 1 in which the two sections of the container are separable for access to the interior for replacement of the cartridge.