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US3750195A Expired / Lapsed US ⏱️ 0.0 years remaining

Flushing device

Assignee: Individual
•
Filing: 1971-11-11
•
Granted: 1973-08-07
•
Expires: 1991-11-11
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Abstract

Abstract A flushing device for toilets having a float directly connected to the movable part of an inlet valve to form a unitary moving element. A siphon empties the flush tank and becomes inactive until a full tank is flushed again. When the float, which is slidably mounted in a chamber, is forced down for flushing, it forces water from the float chamber into the siphon either alone or with water from the inlet valve, to start a siphoning action to empty the flush tank. At the same time the float opens the inlet valve to supply additional water to start the siphon and to keep the valve open until the flush tank is refilled at which time the float has been raised to its normal position. Provisions are made for preventing a reverse flow from the tank into the inlet pipe during failure of the water supply and for filling the toilet bowl to the desired level at the end of the flushing operation. Provision is also made for conserving water by flushing a predetermined quantity of water for solids and considerably less water for liquids and by providing means for regulating the amount of water to be flushed by the flushing unit.

Inventors

  • 👤 V Roosa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 08:38
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/02; E03D1/06; E03D1/08; E03D1/082; E03D1/085

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 78 words
In a siphon type flushing device the combination of a float chamber, an inlet, an inlet valve to control said inlet, a float adapted to fit slideably in a portion of said chamber to expel water from the chamber to start the operation of the flushing device and means connecting said float to said inlet valve whereby the movement of the float operates the inlet valve to control both the flushing and the filling of the flush tank.
Claim 2
Dependent Claim 78 words
In a siphon type flushing device the combination of a float chamber, an inlet, an inlet valve to control said inlet, a float adapted to fit slideably in a portion of said chamber to expel water from the chamber to start the operation of the flushing device and means connecting said float to said inlet valve whereby the movement of the float operates the inlet valve to control both the flushing and the filling of the flush tank.
Claim 3
Dependent Claim 23 words
In a flushing device as claimed in claim 1 wherein the movable part of the inlet valve is rigidly secured to said float.
Claim 4
Dependent Claim 22 words
In a flushing device as claimed in claim 1 wherein the movement of the float in one direction opens the inlet valve.
Claim 5
Dependent Claim 41 words
In a flushing device as claimed in claim 1 wherein the movement of the float in one direction opens the inlet valve and initiates the flushing operation whereby the operation of the flushing device is controlled by a single moving part.
Claim 6
Dependent Claim 52 words
In a flushing device as claimed in claim 1 wherein a siphon serves as an outlet for the flushing device and wherein a conduit leading from said float chamber supplies water to initiate the siphon action to deliver water for the flushing action when the float is moved downwardly in said chamber.

References Cited (Backward Citations)

US678843A Cited
US840613A Cited
US1077329A Cited
US1759492A Cited
US1725346A Cited
US2642081A Cited
US2996727A Cited
US3076973A Cited
US3553740A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-08-06 1977-02-05 1977-08-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-08-06 1981-02-05 1981-08-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-08-06 1985-02-05 1985-08-07 $7700.00 Window Closed / Lapsed

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