US3277595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally controlled drive mechanism
Assignee: Individual
•
Filing: 1964-01-02
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Granted: 1966-10-11
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Expires: 1984-01-02
Abstract
No abstract record available.
Inventors
- 👤 Robert M Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:25
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/12; G08; G08G; G08G1/00; G08G1/09; G08G1/0962; G08G1/0967; G08G1/096708; G08G1/096716; G08G1/096733; G08G1/096758; G08G1/096766; G08G1/096783
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A TEMPERATURE RESPONSIVE POWER MECHANISM INCLUDING: AN ELONGATE LEVER MEMBER PIVOTALLY MOUNTED INTERMEDIATE ITS ENDS; MEANS ON ONE ARM OF SAID LEVER MEMBER FOR CONNECTING THE SAME TO A MECHANISM TO BE OPERATED THEREBY; AND PRESSURE CHARGED CLOSED EXPANSIBLE CHAMBER TEMPERATURE SENSITIVE MEANS CONNECTED WITH THE OPPOSITE ARM OF SAID LEVER MEMBER FOR MOVING THE SAME IN RESPONSE TO TEMPERATURE CONDITIONS SENSED BY SAID TEMPEREATURE SENSITIVE MEANS, SAID TEMPERATURE SENSITIVE MEANS COMPRISING A FLUID WHICH CHANGES STATE FROM GAS TO LIQUID WHEN THE TEMPERATURE FALLS BELOW A PREDETERMINED VALUE TO CAUSE OPERATION OF SAID POWER MECHANISM.
Claim 2
Dependent Claim
96 words
A TEMPERATURE RESPONSIVE POWER MECHANISM INCLUDING: AN ELONGATE LEVER MEMBER PIVOTALLY MOUNTED INTERMEDIATE ITS ENDS; MEANS ON ONE ARM OF SAID LEVER MEMBER FOR CONNECTING THE SAME TO A MECHANISM TO BE OPERATED THEREBY; AND PRESSURE CHARGED CLOSED EXPANSIBLE CHAMBER TEMPERATURE SENSITIVE MEANS CONNECTED WITH THE OPPOSITE ARM OF SAID LEVER MEMBER FOR MOVING THE SAME IN RESPONSE TO TEMPERATURE CONDITIONS SENSED BY SAID TEMPEREATURE SENSITIVE MEANS, SAID TEMPERATURE SENSITIVE MEANS COMPRISING A FLUID WHICH CHANGES STATE FROM GAS TO LIQUID WHEN THE TEMPERATURE FALLS BELOW A PREDETERMINED VALUE TO CAUSE OPERATION OF SAID POWER MECHANISM.
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) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |