US3082626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally responsive device
Assignee: Robertshaw Controls Co
•
Filing: 1958-12-05
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Granted: 1963-03-26
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Expires: 1978-12-05
Abstract
No abstract record available.
Inventors
- 👤 Charles H Perkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:10
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0208; G; G01; G01K; G01K1/00; G01K1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A THERMALLY RESPONSIVE CONTROL DEVICE COMPRISING A HOLLOW TEMPERATURE SENSING MEANS, A CONTROL ELEMENT HAVING A FIXED WALL AND A MOVABLE WALL DEFINING AN INTERNAL CHAMBER THEREBETWEEN, A CAPILLARY TUBE INTERCONNECTING THE INTERIOR OF SAID TEMPERATURE SENSING MEANS AND SAID INTERNAL CHAMBER OF SAID CONTROL ELEMENT, A TEMPERATURE SENSITIVE FLUID FILLING SAID TEMPERATURE SENSING MEANS, SAID INTERNAL CHAMBER AND SAID CAPILLARY TUBE, SAID MOVABLE WALL BEING MOVABLE IN RESPONSE TO EXPANSION AND CONTRACTION OF SAID FLUID, SAID CAPILLARY TUBE BEING CONSTRUCTED AND ARRANGED TO COMPENSATE FOR THE AMBIENT TEMPERATURE VARIATIONS THEREOF, AND MEANS DIRECTLY SECURED TO SAID MOVABLE WALL EXTERNALLY OF SAID CHAMBER AND BEING MOVABLE INWARDLY RELATIVE TO SAID MOVABLE WALL IN RESPONSE TO AN INCREASE IN AMBIENT TEMPERATURE AND OUTWARDLY RELATIVE TO SAID MOVABLE WALL IN RESPONSE TO A DECREASE IN AMBIENT
Claim 2
Dependent Claim
134 words
A THERMALLY RESPONSIVE CONTROL DEVICE COMPRISING A HOLLOW TEMPERATURE SENSING MEANS, A CONTROL ELEMENT HAVING A FIXED WALL AND A MOVABLE WALL DEFINING AN INTERNAL CHAMBER THEREBETWEEN, A CAPILLARY TUBE INTERCONNECTING THE INTERIOR OF SAID TEMPERATURE SENSING MEANS AND SAID INTERNAL CHAMBER OF SAID CONTROL ELEMENT, A TEMPERATURE SENSITIVE FLUID FILLING SAID TEMPERATURE SENSING MEANS, SAID INTERNAL CHAMBER AND SAID CAPILLARY TUBE, SAID MOVABLE WALL BEING MOVABLE IN RESPONSE TO EXPANSION AND CONTRACTION OF SAID FLUID, SAID CAPILLARY TUBE BEING CONSTRUCTED AND ARRANGED TO COMPENSATE FOR THE AMBIENT TEMPERATURE VARIATIONS THEREOF, AND MEANS DIRECTLY SECURED TO SAID MOVABLE WALL EXTERNALLY OF SAID CHAMBER AND BEING MOVABLE INWARDLY RELATIVE TO SAID MOVABLE WALL IN RESPONSE TO AN INCREASE IN AMBIENT TEMPERATURE AND OUTWARDLY RELATIVE TO SAID MOVABLE WALL IN RESPONSE TO A DECREASE IN AMBIENT
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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) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |