US3197088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metering device
Assignee: Walker Manufacturing Co
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Filing: 1962-07-11
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Granted: 1965-07-27
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Expires: 1982-07-11
Abstract
No abstract record available.
Inventors
- 👤 William G Mckenzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:36
CPC Classifications
G; G01; G01F; G01F11/00; F; F16; F16N; F16N27/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86389; Y10T137/86405; Y10T137/86413; Y10T137/86493; Y10T137/86879
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A VALVE FOR MEASURING AND DELIVERING PREDETERMINED QUANTITIES OF FLUID COMPRISING A HOUSING HAVING AN INLET FOR FLUID, AN ELASTIC BLADDER SURROUNDING SAID INLET AND RECEIVING ALL FLUID FLOWING THROUGH, IT, SAID HOUSING PROVIDING A CHAMBER AROUND THE OUTSIDE OF THE SAID BLADDER, EXPANSION AND CONTRACTION OF SAID BLADDER CHANGING THE VOLUME OF SAID CHAMBER, SAID CHAMBER HAVING AN OUTLET FOR FLUID, AND VALVE MEANS INSIDE SAID BLADDER ACTING TO BLOCK THE FLOW OF FLUID THROUGH THE BLADDER WHEN FLUID ENTERS UNDER PRESSURE THROUGH SAID INLET AND THEREBY CAUSING EXPANSION OF THE BLADDER TO REDUCE THE VOLUME OF SAID CHAMBER.
Claim 2
Dependent Claim
101 words
IN A VALVE FOR MEASURING AND DELIVERING PREDETERMINED QUANTITIES OF FLUID COMPRISING A HOUSING HAVING AN INLET FOR FLUID, AN ELASTIC BLADDER SURROUNDING SAID INLET AND RECEIVING ALL FLUID FLOWING THROUGH, IT, SAID HOUSING PROVIDING A CHAMBER AROUND THE OUTSIDE OF THE SAID BLADDER, EXPANSION AND CONTRACTION OF SAID BLADDER CHANGING THE VOLUME OF SAID CHAMBER, SAID CHAMBER HAVING AN OUTLET FOR FLUID, AND VALVE MEANS INSIDE SAID BLADDER ACTING TO BLOCK THE FLOW OF FLUID THROUGH THE BLADDER WHEN FLUID ENTERS UNDER PRESSURE THROUGH SAID INLET AND THEREBY CAUSING EXPANSION OF THE BLADDER TO REDUCE THE VOLUME OF SAID CHAMBER.
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |