US3142197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism for pivotable device
Assignee: Individual
•
Filing: 1962-10-02
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Granted: 1964-07-28
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Expires: 1982-10-02
Abstract
No abstract record available.
Inventors
- 👤 Tourneau Robert G Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:26
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/84; E02F3/844; E02F3/7609; E02F3/7618; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18088; Y10T74/1812; Y10T74/19; Y10T74/19642; Y10T74/1967
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN AN EARTHWORKING MACHINE HAVING A MAIN FRAME AND AN EARTH ENGAGING STRUCTURE PIVOTALLY MOUNTED THEREON, A MOVEMENT CONTROL MECHANISM FOR SAID EARTH ENGAGING STRUCTURE WHICH COMPRISES: A POWERED GEAR REDUCTION FIXEDLY MOUNTED ON SAID FRAME ABOVE SAID EARTH ENGAGING STRUCTURE AND HAVING AN OUTPUT PINION; A RACK HAVING AN ARCUATE CONVEX BACK SURFACE AND TEETH ENGAGING SAID OUTPUT PINION, WHICH TEETH ARE SO ARRANGED THAT THE PITCH LINES OF THE FACES THEREOF LIE IN A COMMON PLANE; A SINGLE BACKUP ROLLER JOURNALLY MOUNTED IN A FIXED POSITION ADJACENT SAID PINION FOR ROLLABLE ENGAGEMENT WITH SAID BACK SURFACE; AND MEANS FOR CONNECTING ONE END OF SAID RACK TO SAID EARTH ENGAGING STRUCTURE.
Claim 2
Dependent Claim
112 words
IN AN EARTHWORKING MACHINE HAVING A MAIN FRAME AND AN EARTH ENGAGING STRUCTURE PIVOTALLY MOUNTED THEREON, A MOVEMENT CONTROL MECHANISM FOR SAID EARTH ENGAGING STRUCTURE WHICH COMPRISES: A POWERED GEAR REDUCTION FIXEDLY MOUNTED ON SAID FRAME ABOVE SAID EARTH ENGAGING STRUCTURE AND HAVING AN OUTPUT PINION; A RACK HAVING AN ARCUATE CONVEX BACK SURFACE AND TEETH ENGAGING SAID OUTPUT PINION, WHICH TEETH ARE SO ARRANGED THAT THE PITCH LINES OF THE FACES THEREOF LIE IN A COMMON PLANE; A SINGLE BACKUP ROLLER JOURNALLY MOUNTED IN A FIXED POSITION ADJACENT SAID PINION FOR ROLLABLE ENGAGEMENT WITH SAID BACK SURFACE; AND MEANS FOR CONNECTING ONE END OF SAID RACK TO SAID EARTH ENGAGING STRUCTURE.
References Cited (Backward Citations)
US2550335A
Cited
US3033524A
Cited
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 |