Patent US3172978A successfully refreshed from Google Patents.
US3172978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination timer and thermostat switch
Assignee: Individual
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Filing: 1962-08-10
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Granted: 1965-03-09
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Expires: 1982-08-10
Abstract
No abstract record available.
Inventors
- 👤 Milton S Taffet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:06
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/30; H01H43/301; H01H43/302; H01H43/304
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A COMBINED TIMER AND THERMOSTAT COMPRISED BY A HOUSING MEANS, A MEMBER ROTATABLY CARRIED BY THE HOUSING MEANS, A BI-METALLIC COIL SPRING THERMOSTATIC ELEMENT CONNECTED AT ONE END TO A PORTION OF THE HOUSING MEANS, SURROUNDING THE MEMBER, AND CONNECTED AT ITS OTHER END TO THE MEMBER FOR ROTATING SAME ALTERNATELY IN OPPOSITE DIRECTIONS AS THE THERMOSTATIC ELEMENT CONTRACTS OR EXPANDS, A CAM SURROUNDING THE MEMBER AND FIXED THERETO FOR ROTATION THEREWITH, A TIMING DISC SURROUNDING THE MEMBER AND FREE TO ROTATE THEREAROUND, AN ENCAPEMENT MECHANISM ENGAGEABLE WITH THE TIMING DISC, A FOLLOWER ARM MOUNTED ON THE ENGAGEABLE WITH THE TIMING DISC, A FOLLOWER TATING CONTACT WITH THE CAM, AND A SWITCH HAVING A MOVABLE MEMBER ENGAGED BY THE FOLLOOWER ARM TO OPEN AND CLOSE THE SWITCH.
Claim 2
Dependent Claim
127 words
A COMBINED TIMER AND THERMOSTAT COMPRISED BY A HOUSING MEANS, A MEMBER ROTATABLY CARRIED BY THE HOUSING MEANS, A BI-METALLIC COIL SPRING THERMOSTATIC ELEMENT CONNECTED AT ONE END TO A PORTION OF THE HOUSING MEANS, SURROUNDING THE MEMBER, AND CONNECTED AT ITS OTHER END TO THE MEMBER FOR ROTATING SAME ALTERNATELY IN OPPOSITE DIRECTIONS AS THE THERMOSTATIC ELEMENT CONTRACTS OR EXPANDS, A CAM SURROUNDING THE MEMBER AND FIXED THERETO FOR ROTATION THEREWITH, A TIMING DISC SURROUNDING THE MEMBER AND FREE TO ROTATE THEREAROUND, AN ENCAPEMENT MECHANISM ENGAGEABLE WITH THE TIMING DISC, A FOLLOWER ARM MOUNTED ON THE ENGAGEABLE WITH THE TIMING DISC, A FOLLOWER TATING CONTACT WITH THE CAM, AND A SWITCH HAVING A MOVABLE MEMBER ENGAGED BY THE FOLLOOWER ARM TO OPEN AND CLOSE THE SWITCH.
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) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |