US3138966A
Expired / Lapsed
US
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Assignee: Caterpillar Inc
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Filing: 1962-06-15
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Granted: 1964-06-30
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Expires: 1982-06-15
Abstract
No abstract record available.
Inventors
- 👤 Dennis D Kempf
- 👤 Gerald D Rohweder
- 👤 Clifford L Shoemaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:41
CPC Classifications
B; B62; B62D; B62D1/00; B62D1/24; E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/6454; E02F3/65; E02F3/651; E02F9/00; E02F9/20; E02F9/2025; F; F15; F15B; F15B21/00; F15B21/08; F16; F16H; F16H61/00; F16H61/26; F16H61/28; F16H61/32; H; H01; H01H; H01H19/00; H01H19/54; H01H19/60; H01H19/62; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19437
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
IN A REMOTE CONTROL SYSTEM THE COMBINATION COMPRISING; A PLURALITY OF NORMALLY CLOSED ELECTRICAL SWITCHES IN SERIES CONNECTION; A CAM ENGAGING SAID SWITCHES AND MAINTAINING ALL BUT A PAIR OF SERIES ADJACENT SWITCHES IN THEIR NORMAL CLOSED STATE, THE SERIES ADJACENT PAIR BEING CONDITIONED TO AN OPEN STATE, THE PARTICULAR PAIR OF SERIES ADJACENT SWITCHES CONDITIONED TO AN OPEN STATE DEPENDENT UPON THE POSITION OF SAID CAM; A PLURALITY OF ELECTRICAL CONDUCTORS, EACH ONE CONNECTED TO A SERIES CONNECTION BETWEEN A SERIES PAIR OF SWITCHES; MEANS FOR PLACING AN ELECTRICAL SIGNAL ON ONE OF SAID CONDUCTORS; AND AN ELECTRICALLY ACTUATED DRIVE MEANS MECHANICALLY CONNECTED TO SAID CAM TO POSITION SAID CAM IN ONE DIRECTION OR THE OTHER, SAID DRIVE MEANS ELECTRICALLY CONNECTED TO THE FIRST AND LAST SWITCHES IN SAID SWITCH SERIES SUCH THAT A SIGNAL FROM ONE INDUCES SAID DRIVE MEANS TO POSITION SAID CAM IN ONE DIRECTION WHILE A SIGNAL FROM THE OTHER INDUCES SAID DRIVE MEANS TO POSITION SAID CAM IN THE OTHER DIRECTION.
Claim 2
Dependent Claim
167 words
IN A REMOTE CONTROL SYSTEM THE COMBINATION COMPRISING; A PLURALITY OF NORMALLY CLOSED ELECTRICAL SWITCHES IN SERIES CONNECTION; A CAM ENGAGING SAID SWITCHES AND MAINTAINING ALL BUT A PAIR OF SERIES ADJACENT SWITCHES IN THEIR NORMAL CLOSED STATE, THE SERIES ADJACENT PAIR BEING CONDITIONED TO AN OPEN STATE, THE PARTICULAR PAIR OF SERIES ADJACENT SWITCHES CONDITIONED TO AN OPEN STATE DEPENDENT UPON THE POSITION OF SAID CAM; A PLURALITY OF ELECTRICAL CONDUCTORS, EACH ONE CONNECTED TO A SERIES CONNECTION BETWEEN A SERIES PAIR OF SWITCHES; MEANS FOR PLACING AN ELECTRICAL SIGNAL ON ONE OF SAID CONDUCTORS; AND AN ELECTRICALLY ACTUATED DRIVE MEANS MECHANICALLY CONNECTED TO SAID CAM TO POSITION SAID CAM IN ONE DIRECTION OR THE OTHER, SAID DRIVE MEANS ELECTRICALLY CONNECTED TO THE FIRST AND LAST SWITCHES IN SAID SWITCH SERIES SUCH THAT A SIGNAL FROM ONE INDUCES SAID DRIVE MEANS TO POSITION SAID CAM IN ONE DIRECTION WHILE A SIGNAL FROM THE OTHER INDUCES SAID DRIVE MEANS TO POSITION SAID CAM IN THE OTHER DIRECTION.
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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |