US3154654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Space thermostat with anticipator and leveling device
Assignee: White Rodgers Co
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Filing: 1960-08-01
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Granted: 1964-10-27
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Expires: 1980-08-01
Abstract
No abstract record available.
Inventors
- 👤 William C Woods
- 👤 Jr Raymond W Eldridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:46
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/52; H01H37/56
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
125 words
IN A SPACE THERMOSTAT, A BASE MEMBER, A HORIZONTAL STUD MOUNTED FOR ROTATIONAL ADJUSTMENT IN SAID BASE MEMBER, A BIMETAL STRIP HAVING ONE END ATTACHED TO SAID STUD AND CARRYING AT ITS OTHER END A TILTABLE MERCURY SWITCH, THE ARRANGEMENT BEING SUCH THAT WHEN THE BIMETAL STRIP WARPS IN RESPONSE TO TEMPERATURE CHANGE OR WHEN SAID STUD IS ROTATIONALLY ADJUSTED THE TILTABLE MERCURY SWITCH MOVES ARCUATELY IN A SUBSTANTIALLY VERTICAL PLANE, AND A SPIRIT LEVEL MOUNTED IN FIXED RELATIONSHIP WITH SAID BASE MEMBER AND OPERATIVE TO INDICATE THE PRECISE POSITION OF SAID BASE MEMBER IN WHICH EQUAL OPPOSITE TEMPERATURE CHANGES ABOVE AND BELOW A PREDETERMINED TEMPERATURE WILL EFFECT OPPOSITE OPERATIVE TILTING OF SAID MERCURY SWITCH WHEN SAID STUD IS ROTATABLY ADJUSTED TO A PREDETERMINED POSITION.
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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) | 1967-10-27 | 1968-04-27 | 1968-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-27 | 1972-04-27 | 1972-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-27 | 1976-04-27 | 1976-10-27 | $7700.00 | Window Closed / Lapsed |