U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Liquid dispenser for dispensing foam

Patent 6082586 Issued on July 4, 2000. Estimated Expiration Date: Icon_subject March 30, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3422993

3709437

3743146

Foam generating and dispensing device
Patent #: 3985271
Issued on: 10/12/1976
Inventor: Gardner

Aerosol containers for foaming and delivering aerosols
Patent #: 4019657
Issued on: 04/26/1977
Inventor: Spitzer ,   et al.

Foam dispenser
Patent #: 4022351
Issued on: 05/10/1977
Inventor: Wright

Soap dispenser having a pivotable dispensing lever and a rotatable flow valve
Patent #: 4238056
Issued on: 12/09/1980
Inventor: Tucker ,   et al.

Dispensing apparatus
Patent #: 4621749
Issued on: 11/11/1986
Inventor: Kanfer

Dispensing valve
Patent #: 4978036
Issued on: 12/18/1990
Inventor: Burd

Device for producing and dispensing foam
Patent #: 5048750
Issued on: 09/17/1991
Inventor: Tobler

More ...

Inventor

Assignee

Application

No. 050130 filed on 03/30/1998

US Classes:

222/95, With wall-collapsing means222/105, With casing or support222/145.5, Having mixing chamber222/181.3, Supported on vertical wall by container integral with wall or by a plate support means222/189.11, With discharge assistant222/190, WITH MATERIAL TREATMENT OR CONDITIONING MEANS222/325Insertable cartridge or removable container

Examiners

Primary: Kaufman, Joseph A.

Attorney, Agent or Firm

Foreign Patent References

  • 0392238 EP. 03/20/1990
  • 0565713 EP. 05/20/1992
  • 0618147 EP. 08/20/1993
  • 4429454 DE. 02/20/1996
  • 2193904 GB. 07/20/1987

International Class

B65D 035/28

Abstract

There is disclosed a foaming device for dispensing foam. The device includes a collapsible liquid container and a foam pump attached to the container outlet. The foam pump includes two enclosures, the first being bonded in the throat of the container and the second being telescopingly received in the first with a flexible seal mounted on the second enclosure to provide an air tight seal. When assembled, the two enclosures define an air chamber and a fluid chamber each having outlets which merge by the foamer outlet. The fluid chamber accepts liquid from the container and when the second member is moved with respect to the first member the fluid chamber is pressurized to open an outlet valve and air is simultaneously expelled through the outlet. The liquid and air commingle as they pass through a wire, plastic or fabric mesh thereby forming the foam. There is included a dispenser housing for releasibly receiving the collapsible liquid container and foam pump. The dispenser includes a push button pivotally attached thereto which is coupled to the second enclosure so that as the push button is moved the pump is actuated.

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