US3241370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal probe
Assignee: STEVENS MANUFACTURING COMPANY Inc
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Filing: 1962-09-21
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Granted: 1966-03-22
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Expires: 1982-09-21
Abstract
No abstract record available.
Inventors
- 👤 Charles S Mertler
- 👤 La Verne G Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:04
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/10; G; G01; G01K; G01K1/00; G01K1/14
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
175 words
A THERMAL PROBE, COMPRISING, IN COMBINATION, A BODY HAVING A BASE, A MOVABLE SWITCH BALDE MOUNTED ON SAID BASE, A FIRST CONTACT CARRIED ON SAID MOVABLE SWITCH BLADE AND A SECOND CONTACT CARRIED ON SAID BASE, A METAL TUBE EXTENDING FROM ONE END OF SAID BASE AS PART OF SAID BODY, A CLOSED METAL END CARRIED ON THE OUTER END OF SAID METAL TUBE, AN INNER SURFACE ON SAID CLOSED END, A TEMPERATURE SENSITIVE IMPEDANCE HAVING TWO OPPOSITE FACES WITH ONE THEREOF ENGAGING SAID INNER SURFACE, A METAL ROD DISPOSED IN INSULATED RELATION WITHIN SAID METAL TUBE AND HAVING ONE END OF SAID ROD ELECTRICALLY AND MECHANICALLY ENGAGING THE OTHER FACE OF SAID IMPEDANCE AND HAVING THE OTHER END OF SAID ROD ENGAGING SAID MOVABLE SWITCH BLADE, SAID METAL TUBE AND SAID METAL ROD HAVING DIFFERENT THERMAL COEFFICIENTS OF EXPANSION TO ACTUATE SAID MOVABLE SWITCH BLADE, A FIRST CIRCUIT INCLUDING SAID MOVABLE SWITCH BLADE AND SAID FIRST AND SECOND CONTACTS, AND A SECOND CIRCUIT INCLUDING SAID MOVABLE SWITCH BLADE, SAID METAL ROD AND SAID IMPEDANCE.
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |