US3763501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water conservation flush tank
Assignee: Individual
•
Filing: 1972-12-20
•
Granted: 1973-10-09
•
Expires: 1992-12-20
Abstract
Abstract A water conservation flush tank in which two separate valve seats are formed in the flush tank integrally in the casting of the tank with the valve seats vertically spaced so that the full flush tank capacity is flushed through the lower valve seat and only a portion of the capacity of the flush tank is flushed through the upper valve seat. Each of the valve seats are closed by conventional flush valves separately controlled by individual flush handles. By using the upper valve seat a portion of the flush tank capacity may be used to flush the toilet following urination and the lower valve seat can be opened to flush the toilet with a more positive action following defecation.
Inventors
- 👤 S Minardi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:41
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/02; E03D1/14; E03D1/142; E03D1/145; E03D1/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
98 words
A water conservation flush tank comprising a cast ceramic tank having a commode connection on the lower end thereof for supplying water from said tank to a commode, a pair of vertically spaced horizontal walls integrally formed in said tank of ceramic materials and communicating with a chamber overlying the outlet of said tank, said horizontal walls each having a valve seat formed therein, a pair of vertically movable flush valves cooperating with each of said seats, and means for individually controlling each of said flush valves for separately flushing through a selected one of said valve seats.
Claim 2
Dependent Claim
98 words
A water conservation flush tank comprising a cast ceramic tank having a commode connection on the lower end thereof for supplying water from said tank to a commode, a pair of vertically spaced horizontal walls integrally formed in said tank of ceramic materials and communicating with a chamber overlying the outlet of said tank, said horizontal walls each having a valve seat formed therein, a pair of vertically movable flush valves cooperating with each of said seats, and means for individually controlling each of said flush valves for separately flushing through a selected one of said valve seats.
Claim 3
Dependent Claim
33 words
A device as claimed in claim 1 wherein a passage way extends upwardly in said tank and communicates at its lower end with said chamber for receiving the ovErflow pipe from said valve.
Claim 4
Dependent Claim
26 words
A device as claimed in claim 1 wherein a pair of ears are integrally formed on said tank for supporting guide brackets for said flush valves.
References Cited (Backward Citations)
US1780810A
Cited
US1960864A
Cited
US2505091A
Cited
US2731647A
Cited
US2839759A
Cited
US3375531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |