US3289701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid controlled safety devices for selector valves
Assignee: Individual
•
Filing: 1964-03-03
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Granted: 1966-12-06
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Expires: 1984-03-03
Abstract
No abstract record available.
Inventors
- 👤 Booth Stanley Henshaw
- 👤 Scrivener Edward Willia Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:39
CPC Classifications
F; F16; F16K; F16K35/00; F16K35/14; F15; F15B; F15B13/00; F15B13/02; F15B13/06; F15B20/00; F16H; F16H61/00; F16H61/02; F16H61/0262; F16H2716/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87096; Y10T137/87113; Y10T137/87169; Y10T137/87217
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A SAFETY CONTROL MEANS FOR THE SUPPLY OF FLUID UNDER PRESSURE FROM A COMMON SOURCE OF SUPPLY TO SEPARATE SUPPLY LINES, COMPRISING A GROUP OF AT LEAST TWO SELECTOR VALVES EACH OF WHICH CONTROLS A SEPARATE SUPPLY LINE, SEPARTE MEANS FOR ACTUATING EACH SELECTOR VALVE, AND AUXILIARY LINES CONTROLLED BY EACH SELECTOR VALVE TO SUPPLY FLUID TO ACT ON OTHER SELECTOR VALVES OF THE GROUP TO PREVENT THEIR ACTUATION WHEN IT HAS BEEN ACTUATED TO CONNECT ITS SUPPLY LINE TO THE SOURCE OF SUPPLY.
Claim 2
Dependent Claim
84 words
A SAFETY CONTROL MEANS FOR THE SUPPLY OF FLUID UNDER PRESSURE FROM A COMMON SOURCE OF SUPPLY TO SEPARATE SUPPLY LINES, COMPRISING A GROUP OF AT LEAST TWO SELECTOR VALVES EACH OF WHICH CONTROLS A SEPARATE SUPPLY LINE, SEPARTE MEANS FOR ACTUATING EACH SELECTOR VALVE, AND AUXILIARY LINES CONTROLLED BY EACH SELECTOR VALVE TO SUPPLY FLUID TO ACT ON OTHER SELECTOR VALVES OF THE GROUP TO PREVENT THEIR ACTUATION WHEN IT HAS BEEN ACTUATED TO CONNECT ITS SUPPLY LINE TO THE SOURCE OF SUPPLY.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |