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US4561571A Expired / Lapsed US ⏱️ 0.0 years remaining

Washing liquid supplier

Assignee: Individual
•
Filing: 1983-08-29
•
Granted: 1985-12-31
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Expires: 2003-08-29
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Abstract

Abstract A washing liquid supplier includes a container filled with washing liquid, a pumping chamber formed in a cylinder under the container and defined by a suction valve formed on the lower opening of the container, a discharge valve formed on the lower portion of the pumping chamber and a nipple button, and a discharge pipe horizontally formed under the discharge valve. The nipple button may be depressed to boost the washing liquid through the discharge pipe into user's hand. The depression of nipple button and pick-up of the liquid can be done at the same time by the single hand of the user for convenient operation.

Inventors

  • 👤 Jason K. S. Chen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 21:35
CPC Classifications
A; A47; A47K; A47K5/00; A47K5/06; A47K5/12; A47K5/1202; A47K5/1208

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 252 words
A washing liquid supplier comprising: a container filled with washing liquid and formed with two holding grooves to engage with two hooks of holding bracket fixed on a wall, said container having an opening; a valve means fixed under said container; and a discharge pipe, horizontally fixed under said valve means and formed with a rear extension to terminate on the fixing wall and terminated on its front end with a resilient sealer to resiliently seal a discharge opening formed on the end of said pipe; the improvement comprising: said valve means including an outer cylinder upperly connected with said container and lowerly connected with said discharge pipe; and inner cylinder formed within said outer cylinder and in communication with said discharge pipe; an upper valve seat formed in said container opening; a lower valve seat formed in said inner cylinder; a suction valve pivotedly and upwardly sealing against said upper valve seat; a discharge valve resiliently and upwardly sealing against said lower valve seat; said inner cylinder, said suction valve, and said discharge valve difining a pumping chamber; a side arm portion transversely communicated with said inner cylinder; a cap having a centrally formed button hole, said cap being attached to said side arm portion; a resilient nipple button extending through said button hole and mounted between said side arm portion and said cap, whereby said nipple button is depressed to boost washing liquid in said pumping chamber through said discharge pipe into the user's hand for direct and convenient use.
Claim 2
Dependent Claim 252 words
A washing liquid supplier comprising: a container filled with washing liquid and formed with two holding grooves to engage with two hooks of holding bracket fixed on a wall, said container having an opening; a valve means fixed under said container; and a discharge pipe, horizontally fixed under said valve means and formed with a rear extension to terminate on the fixing wall and terminated on its front end with a resilient sealer to resiliently seal a discharge opening formed on the end of said pipe; the improvement comprising: said valve means including an outer cylinder upperly connected with said container and lowerly connected with said discharge pipe; and inner cylinder formed within said outer cylinder and in communication with said discharge pipe; an upper valve seat formed in said container opening; a lower valve seat formed in said inner cylinder; a suction valve pivotedly and upwardly sealing against said upper valve seat; a discharge valve resiliently and upwardly sealing against said lower valve seat; said inner cylinder, said suction valve, and said discharge valve difining a pumping chamber; a side arm portion transversely communicated with said inner cylinder; a cap having a centrally formed button hole, said cap being attached to said side arm portion; a resilient nipple button extending through said button hole and mounted between said side arm portion and said cap, whereby said nipple button is depressed to boost washing liquid in said pumping chamber through said discharge pipe into the user's hand for direct and convenient use.

References Cited (Backward Citations)

US1392601A Cited
US2814419A Cited
US3130877A Cited
US3952918A Cited
US4146156A Cited
US4330071A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-12-30 1989-07-01 1989-12-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-12-30 1993-07-01 1993-12-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-12-30 1997-07-01 1997-12-31 $7700.00 Window Closed / Lapsed

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