Patent US3142730A successfully refreshed from Google Patents.
US3142730A
Expired / Lapsed
US
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Timer switching mechanism with multistep one-piece cam
Assignee: General Electric Co
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Filing: 1960-12-21
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Granted: 1964-07-28
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Expires: 1980-12-21
Abstract
No abstract record available.
Inventors
- 👤 John L Slonneger
- 👤 Jr Glenn R Chafee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:44
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/10; H01H43/12; H01H43/125; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
FOR USE IN A TIME CONTROLLED SWITCHING MECHANISM, A CAM AND SWITCH STRUCTURE COMPRISING A CAM MEMBER HAVING A CENTRAL AXIS OF ROTATION AND AT LEAST THREE AXIALLY STEPPED CYLINDRICAL CAM SURFACES ARRANGED CONCENTRICALLY AROUND SAID AXIS, SAID SURFACES BEING IMMOVABLE RELATIVE TO EACH OTHER AND HAVING PROGRESSIVELY INCREASING RADII BETWEEN THE TOP AND BOTTOM ENDS OF SAID MEMBER, A BASE MEANS RECEIVING SAID CAM MEMBER, SAID BASE MEANS INCLUDING A PLURALITY OF AXIALLY SPACED WALLS DISPOSED AROUND SAID CAM MEMBER, AND A PLURALITY OF SWITCHES MOUNTED ON SAID WALLS IN AN AXIALLY SPACED RELATIONSHIP, EACH OF SAID SWITCHES HAVING AN ACTUATING MEMBER LOCATED ADJACENT A DIFFERENT ONE OF SAID CAM SURFACES FOR OPERATION THEREBY.
Claim 2
Dependent Claim
115 words
FOR USE IN A TIME CONTROLLED SWITCHING MECHANISM, A CAM AND SWITCH STRUCTURE COMPRISING A CAM MEMBER HAVING A CENTRAL AXIS OF ROTATION AND AT LEAST THREE AXIALLY STEPPED CYLINDRICAL CAM SURFACES ARRANGED CONCENTRICALLY AROUND SAID AXIS, SAID SURFACES BEING IMMOVABLE RELATIVE TO EACH OTHER AND HAVING PROGRESSIVELY INCREASING RADII BETWEEN THE TOP AND BOTTOM ENDS OF SAID MEMBER, A BASE MEANS RECEIVING SAID CAM MEMBER, SAID BASE MEANS INCLUDING A PLURALITY OF AXIALLY SPACED WALLS DISPOSED AROUND SAID CAM MEMBER, AND A PLURALITY OF SWITCHES MOUNTED ON SAID WALLS IN AN AXIALLY SPACED RELATIONSHIP, EACH OF SAID SWITCHES HAVING AN ACTUATING MEMBER LOCATED ADJACENT A DIFFERENT ONE OF SAID CAM SURFACES FOR OPERATION THEREBY.
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) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |