Patent US4232408A successfully refreshed from Google Patents.
US4232408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two variable flush gate for lavatory reservoir
Assignee: Individual
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Filing: 1979-03-30
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Granted: 1980-11-11
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Expires: 1999-03-30
Abstract
Abstract Disclosed herein is a two variable flush gate for a flush toilet. It is a structure that, by means of adding and altering parts of elements in a traditional flush gate, can select a discharge quantity with simple operation of the discharge lever as needed so that unnecessary water consumption can be avoided.
Inventors
- 👤 Lee Chen-Yuan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:32
CPC Classifications
E; E03; E03D; E03D1/00; E03D1/02; E03D1/14; E03D1/142; E03D1/144
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
199 words
A flush gate for a toilet flush tank having two modes of actuation for permitting two different water volumes to be selectively flushed, comprising, in combination: a pivot area, a first control piece pivoted at said pivot area to a flush gate housing having first and second extremities on opposed sides of said pivot area, a flush gate seal pivotably mounted on said flush gate housing, means on said first extremity to engage and retain said flush gate seal overlying said flush gate for one time interval first float means on said second extremity to disengage said seal from said first extremity when the water volume falls to a selected level; a second control piece pivoted at said pivot area and laterally spaced from said first control piece, and substantially parallel thereto having first and second extremities on opposed sides of said pivot area with means on said first extremity to engage and retain said seal for a second time interval, and second float means on said second extremity to disengage said seal when the water volume falls to another selected level, said first and second control pieces being pivoted in said pivot area about a single pivot axis.
Claim 2
Dependent Claim
199 words
A flush gate for a toilet flush tank having two modes of actuation for permitting two different water volumes to be selectively flushed, comprising, in combination: a pivot area, a first control piece pivoted at said pivot area to a flush gate housing having first and second extremities on opposed sides of said pivot area, a flush gate seal pivotably mounted on said flush gate housing, means on said first extremity to engage and retain said flush gate seal overlying said flush gate for one time interval first float means on said second extremity to disengage said seal from said first extremity when the water volume falls to a selected level; a second control piece pivoted at said pivot area and laterally spaced from said first control piece, and substantially parallel thereto having first and second extremities on opposed sides of said pivot area with means on said first extremity to engage and retain said seal for a second time interval, and second float means on said second extremity to disengage said seal when the water volume falls to another selected level, said first and second control pieces being pivoted in said pivot area about a single pivot axis.
Claim 3
Dependent Claim
50 words
The device of claim 1 wherein said means on said first extremity of said first control piece comprises: a protuberant camming control stop on a vertical face of said first control piece which faces said seal and upon which a discharge cover travels and rests from which said seal depends.
Claim 4
Dependent Claim
27 words
The device of claim 2 wherein said means on said first extremity of said second control piece comprises: a bifurcated terminal portion which engages said discharge cover.
Claim 5
Dependent Claim
50 words
The device of claim 3 wherein said first float means is threadedly connected to said second extremity by a tiny rod whereby the distance between said first float means and said second extremity can be varied by threading said tiny rod into said second extremity of said first control piece.
Claim 6
Dependent Claim
25 words
The device of claim 4 wherein said first extremities of said first and second control pieces each having declinations upwardly and towards said discharge cover.
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) | 1983-11-11 | 1984-05-12 | 1984-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-11 | 1988-05-12 | 1988-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-11 | 1992-05-12 | 1992-11-11 | $7700.00 | Window Closed / Lapsed |