US3129885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid line thermostat
Assignee: ROSTRA ENGINEERED COMPONENTS Inc A CORP OF CT
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Filing: 1962-04-30
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Granted: 1964-04-21
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Expires: 1982-04-30
Abstract
No abstract record available.
Inventors
- 👤 John S Freismuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:03
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/13; G05D23/1306; G05D23/132; G05D23/1333
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
110 words
IN A THERMOSTATIC VALVE, FIRST AND SECOND SPACED WALLS DEFINING FIRST AND SECOND SPACED VALVE SEATS, MEANS CONNECTING SAID WALLS TO MAINTAIN THEN IN SPACED RELATION TO EACH OTHER, A HOLLOW, OPEN-ENDED VALVE ELEMENT AXIALLY MOVABLE IN THE SPACE BETWEEN SAID SEATS TO CLOSE AGAINST ONE OR THE OTHER OF SAID SEATS, THERMOSTATIC MEANS, COMPRISING A ROD CONNECTED TO SAID SECOND WALL AND EXTENDING TOWARD SAID FIRST WALL, AND A SLEEVE SLIDABLY MOUNTED ON SAID ROD, AND HEAT-RESPONSIVE POWER MEANS CONNECTED AT ONE END TO SAID SLEEVE TO RELATIVELY MOVE SAID SLEEVE AND ROD, MEANS CONNECTING SAID SLEEVE TO SAID VALVE, AND MEANS BIASING SAID VALVE TOWARD SAID SECOND WALL.
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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |