US3234958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for washing machines
Assignee: Watts Regulator Co
•
Filing: 1963-07-05
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Granted: 1966-02-15
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Expires: 1983-07-05
Abstract
No abstract record available.
Inventors
- 👤 Lamont C Butters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:06
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/08; F16K11/087; F16K11/0873; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4273; Y10T137/428; Y10T137/598; Y10T137/6154; Y10T137/6157; Y10T137/6851; Y10T137/6966; Y10T137/6969; Y10T137/698; Y10T137/8593; Y10T137/87153; Y10T137/87161; Y10T137/9029
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A DUAL VALVE COMPRISING A VALVE BODY HAVING A PAIR OF FLOW BORES THERETHROUGH, EACH COMMUNICATING AT ONE END WITH AN INLET AND AT THE OTHER END WITH AN OUTLET, CLOSURE MEANS COMPRISING A BALL VALVE DISPOSED IN EACH FLOW BORE FOR REGULATING THE FLOW OF LIQUID THERETHROUGH SAID BALL VALVES EACH HAVING AN OPENING THERETHROUGH AND BEING MOVABLE FROM A FIRST POSITION PREVENTING FLUID FLOW TO A SECOND POSITION PERMITTING FLUID FLOW, ANNULAR RESILIENT SEALING DISCS ENGAGING BOTH THE UPSTREAM AND DOWNSTREAM SURFACES OF EACH OF SAID BALL VALVES, EACH OF SAID BALL VALVES AND THE SEALING DISCS ASSOCIATED THEREWITH COOPERATING TO RENDER THE BALL VALVES SELF-CLEANING IN USE, MEANS FOR RETAINING SAID BALL VALVES
Claim 2
Dependent Claim
116 words
A DUAL VALVE COMPRISING A VALVE BODY HAVING A PAIR OF FLOW BORES THERETHROUGH, EACH COMMUNICATING AT ONE END WITH AN INLET AND AT THE OTHER END WITH AN OUTLET, CLOSURE MEANS COMPRISING A BALL VALVE DISPOSED IN EACH FLOW BORE FOR REGULATING THE FLOW OF LIQUID THERETHROUGH SAID BALL VALVES EACH HAVING AN OPENING THERETHROUGH AND BEING MOVABLE FROM A FIRST POSITION PREVENTING FLUID FLOW TO A SECOND POSITION PERMITTING FLUID FLOW, ANNULAR RESILIENT SEALING DISCS ENGAGING BOTH THE UPSTREAM AND DOWNSTREAM SURFACES OF EACH OF SAID BALL VALVES, EACH OF SAID BALL VALVES AND THE SEALING DISCS ASSOCIATED THEREWITH COOPERATING TO RENDER THE BALL VALVES SELF-CLEANING IN USE, MEANS FOR RETAINING SAID BALL VALVES
References Cited (Backward Citations)
US1533745A
Cited
US1559706A
Cited
US1708241A
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US2716421A
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US3009681A
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US3033227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |