US3768103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toilet tank flush valve assembly
Assignee: Individual
•
Filing: 1972-02-14
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Granted: 1973-10-30
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Expires: 1992-02-14
Abstract
Abstract A toilet tank flush valve assembly to enable a selected quantity of water to be discharged from a tank comprises a straight length of upstanding pipe having lower and upper inlets normally closed by lower and upper valves connected by flexible operating chains to manually rockable crank means capable of moving one or the other, or both, of the valves to open the respective inlets and permit a predetermined quantity of water to be discharged through the lower end of the pipe.
Inventors
- 👤 B Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:27
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/30; E03D1/34; E03D1/02; E03D1/14; E03D1/142; E03D1/145
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
191 words
A toilet tank flush valve assembly comprising a straight, upstanding pipe open at least at its lower end; a first inlet in communication with said pipe at a level above its lower end; a second inlet in communication with said pipe at a level adjacent its lower end; first valve means; means mounting said first valve means for movement from a first position in which said first inlet is closed to a second position in which said first inlet is open; second valve means; means mounting said second valve means for movement from a first position in which said second inlet is closed to a second position in which said second inlet is open; first valve operating means connected to said first valve means; actuating means connected to said first valve operating means and operable to move said first valve means from its first position to and beyond its second position; and second valve operating means connecting said first valve means and said second valve means for moving the latter from its first position to said second position in response to movement of said first valve means beyond its second position.
Claim 2
Dependent Claim
191 words
A toilet tank flush valve assembly comprising a straight, upstanding pipe open at least at its lower end; a first inlet in communication with said pipe at a level above its lower end; a second inlet in communication with said pipe at a level adjacent its lower end; first valve means; means mounting said first valve means for movement from a first position in which said first inlet is closed to a second position in which said first inlet is open; second valve means; means mounting said second valve means for movement from a first position in which said second inlet is closed to a second position in which said second inlet is open; first valve operating means connected to said first valve means; actuating means connected to said first valve operating means and operable to move said first valve means from its first position to and beyond its second position; and second valve operating means connecting said first valve means and said second valve means for moving the latter from its first position to said second position in response to movement of said first valve means beyond its second position.
Claim 3
Dependent Claim
32 words
The assembly according to claim 1 wherein the mounting means for each of said valve means mounts the latter for return movement from said second position to said first position by gravity.
Claim 4
Dependent Claim
23 words
The assembly according to claim 1 wherein each of said valve operating means comprises a flexible member capable of transmitting tensile forces only.
Claim 5
Dependent Claim
21 words
The assembly according to claim 1 wherein said actuating means comprises rockable crank means connected to said second operating means only.
Claim 6
Dependent Claim
16 words
The assembly according to claim 1 wherein each of said valve means comprises a buoyant body.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |