US3135849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic control switches for refrigerators and the like
Assignee: Cutler Hammer Inc
•
Filing: 1962-02-28
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Granted: 1964-06-02
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Expires: 1982-02-28
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Kuhn
- 👤 Smith Charles Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:27
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/26; H01H35/2607; H01H35/2635; H01H35/34; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/18896
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN COMBINATION IN A THERMOSTATIC SWITCH, A SNAP ACTING SWITCH MECHANISM HAVING AN OPERATING MEMBER MOVABLE TO ONE EXTREME POSITION WHEREIN SAID MECHANISM ASSUMES ONE STABLE OPERATING CONDITION AND MOVABLE TO ANOTHER EXTREME POSITION WHEREIN SAID MECHANISM ASSUMES ANOTHER STABLE OPERATING CONDITION, A THERMALLY RESPONSIVE POWER ELEMENT HAVING A DIAPHRAGM WHICH MOVES INWARDLY AND OUTWARDLY IN ACCORDANCE WITH CHANGES IN PRESSURE OF THE FLUID FILL IN SAID ELEMENT, AND A MOTION TRANSMITTING MECHANISM BETWEEN SAID DIAPHRAGM AND SAID OPERATING MEMBER COMPRISING A FIRST LEVER TO DRIVE SAID OPERATING MEMBER TO SAID ONE EXTREME POSITION WHEN SAID DIAPHRAGM MOVES OUTWARDLY, A SECOND LEVER AND A SPRING BIASING SAID SECOND LEVER TO DRIVE SAID OPERATING MEMBER TO ITS OTHER EXTREME POSITION WHEN SAID DIAPHRAGM MOVES INWARDLY.
Claim 2
Dependent Claim
124 words
IN COMBINATION IN A THERMOSTATIC SWITCH, A SNAP ACTING SWITCH MECHANISM HAVING AN OPERATING MEMBER MOVABLE TO ONE EXTREME POSITION WHEREIN SAID MECHANISM ASSUMES ONE STABLE OPERATING CONDITION AND MOVABLE TO ANOTHER EXTREME POSITION WHEREIN SAID MECHANISM ASSUMES ANOTHER STABLE OPERATING CONDITION, A THERMALLY RESPONSIVE POWER ELEMENT HAVING A DIAPHRAGM WHICH MOVES INWARDLY AND OUTWARDLY IN ACCORDANCE WITH CHANGES IN PRESSURE OF THE FLUID FILL IN SAID ELEMENT, AND A MOTION TRANSMITTING MECHANISM BETWEEN SAID DIAPHRAGM AND SAID OPERATING MEMBER COMPRISING A FIRST LEVER TO DRIVE SAID OPERATING MEMBER TO SAID ONE EXTREME POSITION WHEN SAID DIAPHRAGM MOVES OUTWARDLY, A SECOND LEVER AND A SPRING BIASING SAID SECOND LEVER TO DRIVE SAID OPERATING MEMBER TO ITS OTHER EXTREME POSITION WHEN SAID DIAPHRAGM MOVES INWARDLY.
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) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |