US4794946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inherently adjustable inverted cup float for a ballcock valve
Assignee: Individual
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Filing: 1988-02-09
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Granted: 1989-01-03
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Expires: 2008-02-09
Abstract
Abstract An inverted cup float for a ballcock valve in a water tank. It is inherently able to select the water level in the tank by inherent selection of the point along its height where it becomes buoyant. An example is the provision of a plurality of vent ports at various heights along the cup which can selectively be opened to vent air from the cup at levels below the uppermost vent port.
Inventors
- 👤 Bruce A. Antunez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:31
CPC Classifications
F; F16; F16K; F16K33/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7413; Y10T137/7722; Y10T137/7748; Y10T137/7751
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A float for a ballcock valve which is inherently adjustable to select a water level to be established in a tank, said float comprising: an organic plastic molded inverted cup having a closed top wall and a peripheral sidewall, said sidewall being adapted to provide a vent port therethrough at a plurality of selective elevations along said sidewall, said sidewall has a plurality of different thicknesses, one of said thicknesses defining a plurality of weakened areas which can be easily and selectively pushed out to provide said vents for selecting a desired water level.
Claim 2
Dependent Claim
94 words
A float for a ballcock valve which is inherently adjustable to select a water level to be established in a tank, said float comprising: an organic plastic molded inverted cup having a closed top wall and a peripheral sidewall, said sidewall being adapted to provide a vent port therethrough at a plurality of selective elevations along said sidewall, said sidewall has a plurality of different thicknesses, one of said thicknesses defining a plurality of weakened areas which can be easily and selectively pushed out to provide said vents for selecting a desired water level.
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) | 1992-01-03 | 1992-07-04 | 1993-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-03 | 1996-07-04 | 1997-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-03 | 2000-07-04 | 2001-01-03 | $7700.00 | Window Closed / Lapsed |