US3714964A
Expired / Lapsed
US
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Double rate flow controller
Assignee: Factory Mutual Research Corp
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Filing: 1970-08-06
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Granted: 1973-02-06
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Expires: 1990-08-06
Abstract
Abstract A DOUBLE RATE FLOW CONTROLLER INCLUDING A MEANS FOR PERMITTING FLUID FLOW AT A FIRST HIGH FLOW RATE, A MEANS FOR REDUCING THE FIRST FLOW RATE TO A SECOND LOWER FLOW RATE AND A MEANS FOR REGULATING THE VOLUME OF WATER PASSING THROUGH THE FLOW CONTROLLER DURING THE HIGH FLOW CONDITION BEFORE THE HIGH FLOW RATE IS TERMINATED AND THE LOW FLOW RATE BEGINS.
Inventors
- 👤 W Livingston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:01
CPC Classifications
A; A62; A62C; A62C99/00; A62C99/009; B; B60; B60K; B60K17/00; B60K17/32; F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/10; F15B1/103; F16; F16K; F16K47/00; F16K47/01; F16K47/011; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/315; F15B2201/3153; F15B2201/40; F15B2201/41; F15B2201/411; F15B2201/415; F15B2201/60; F15B2201/615; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/62; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1797; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7792; Y10T137/7837; Y10T137/7847; Y10T137/785; Y10T137/7869; Y10T137/8593; Y10T137/87917
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |