US3224675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for protecting the heater in a circulating liquid system
Assignee: Individual
•
Filing: 1957-07-29
•
Granted: 1965-12-21
•
Expires: 1977-07-29
Abstract
No abstract record available.
Inventors
- 👤 Elton B Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:03
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/12; E04H4/129
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
149 words
A FLOW GOVERNOR SYSTEM, COMPRISING; A GOVERNOR INCLUDING A CASING PROVIDED WITH TWO INLETS AND AND OUTLET; MEANS COMMUNICATING WITH ONE OF SAID INLET FOR DELIVERING LIQUID TO SAID ONE INLET AND FOR HEATING SAID LIQUID DURING THE COURSE OF ITS FLOW TO SAID ONE INLET; MEANS COMMUNICATING WITH THE OTHER OF SAID INLETS IN BY-PASSING RELATION WITH SAID HEATING MEANS FOR DELIVERING LIQUID TO SAID OTHER INLET WITHOUT EXPOSING IT TO SAID HEATING MEANS; VALVE MEANS IN SAID CASING CONTROLLING FLOW THROUGH EACH OF SAID INLETS, SAID VALVE MEANS PERMITTING AT LEAST A RESTRICTED FLOW THROUGH SAID ONE INLET AT ALL TIMES AND BEING NORMALLY PARTIALLY OPEN TO PERMIT FLOW THROUGH SAID OTHER INLET; AND A THERMOSTATIC DRIVE ELEMENT IN SAID ONE INLET TO FURTHER OPEN SAID VALVE MEANS WITH RESPECT TO SAID ONE INLET IN RESPONSE TO AN INCREASED TEMPERATURE OF LIQUID DELIVERED TO SAID ONE INLET.
References Cited (Backward Citations)
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Cited
US1414780A
Cited
US2101369A
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Cited
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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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |