US3810261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flush valve assembly for tank
Assignee: Individual
•
Filing: 1971-11-08
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Granted: 1974-05-14
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Expires: 1991-11-08
Abstract
Abstract A tank has an outlet valve which is elevated above a valve seat by a flush mechanism, and an upwardly extending pipe attached to and movable with the outlet valve. After the tank is flushed, the tank is refilled via liquid entering through an inlet valve until the liquid level reaches a predetermined level and overflows into the pipe triggering a link which results in closing the inlet valve. The invention has particular utility in conventional toilet water tanks but may also be used in other applications in which accumulation and discharge of a predetermined volume of liquid is desired.
Inventors
- 👤 K Hollander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:09
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/36
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
142 words
Apparatus comprising a tank for storing a liquid, means for discharging a liquid from said tank including an outlet valve positioned in a valve seat disposed adjacent the bottom of the tank, control means connected to said outlet valve to open said outlet valve to commence discharge of liquid from said tank, an upwardly extending pipe disposed in said tank, said pipe adjacent its upper end being provided with an opening at a desired normal liquid level in said tank, an inlet valve regulating flow of liquid into said tank, and inlet control means for closing said inlet valve when the normal liquid level in the tank is reached, said inlet control means being actuated by flow of liquid through said opening in said pipe when the normal liquid level in said tank is reached in order to close said inlet valve.
Claim 2
Dependent Claim
142 words
Apparatus comprising a tank for storing a liquid, means for discharging a liquid from said tank including an outlet valve positioned in a valve seat disposed adjacent the bottom of the tank, control means connected to said outlet valve to open said outlet valve to commence discharge of liquid from said tank, an upwardly extending pipe disposed in said tank, said pipe adjacent its upper end being provided with an opening at a desired normal liquid level in said tank, an inlet valve regulating flow of liquid into said tank, and inlet control means for closing said inlet valve when the normal liquid level in the tank is reached, said inlet control means being actuated by flow of liquid through said opening in said pipe when the normal liquid level in said tank is reached in order to close said inlet valve.
Claim 3
Dependent Claim
40 words
Apparatus according to claim 1, wherein said pipe is connected to said outlet valve and is movable with said outlet valve, and said control means including a control rod extending longitudinally within said pipe, and connected to said outlet valve.
Claim 4
Dependent Claim
46 words
Apparatus according to claim 2, wherein said control means further comprises a handle disposed on the outside of said tank and connected to a horizontally extending rotatable control tube, said control rod being connected to said control tube and elevated by rotation of said control tube.
Claim 5
Dependent Claim
40 words
Apparatus according to claim 3, further comprising stationary housing means extending into said tank and disposed around said control tube, fulcrum means attached to said stationary housing, and said inlet control means including lever means movable about said fulcrum means.
Claim 6
Dependent Claim
23 words
Apparatus according to claim 4, wherein said housing means and said fulcrum means are positioned above the normal liquid level in said tank.
Claim 7
Dependent Claim
36 words
Apparatus according to claim 1, wherein said inlet control means include plate means disposed within said pipe below said opening in said pipe in a position to be contacted by liquid which flows through said opening.
Claim 8
Dependent Claim
29 words
Apparatus according to claim 6, wherein said inlet control means further comprise a control lever having one end extending longitudinally within said pipe and connected to said plate means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |