US3213704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zero backlash gearing
Assignee: Motors Liquidation Co
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Filing: 1963-06-10
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Granted: 1965-10-26
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Expires: 1983-06-10
Abstract
No abstract record available.
Inventors
- 👤 John A Mcdougal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:27
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/02; F16H55/17; F16H55/18; F16H55/20; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19623; Y10T74/1987; Y10T74/19893; Y10T74/19898; Y10T74/19935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A DRIVE INCLUDING TWO GEARS OF THIN SHEET MATERIAL, EACH OF SAID GEARS HAVING A SERIES OF PERIPHERAL TEETH EXTENDING IN THE FORM OF A FRUSTO-CONE, THOSE OF SAID GEARS IN ENGAGEMENT BEING DISTORTED AND FLEXED RADIALLY BY PRESSURE OF THE SAID ENGAGEMENT.
Claim 2
Dependent Claim
43 words
A DRIVE INCLUDING TWO GEARS OF THIN SHEET MATERIAL, EACH OF SAID GEARS HAVING A SERIES OF PERIPHERAL TEETH EXTENDING IN THE FORM OF A FRUSTO-CONE, THOSE OF SAID GEARS IN ENGAGEMENT BEING DISTORTED AND FLEXED RADIALLY BY PRESSURE OF THE SAID ENGAGEMENT.
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |