US3206995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball bearing screw assembly
Assignee: Motors Liquidation Co
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Filing: 1962-04-16
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Granted: 1965-09-21
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Expires: 1982-04-16
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Bohnhoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:39
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/22; F16H25/2204; F16H25/2214; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19744; Y10T74/19749; Y10T74/19767; Y10T74/19772
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
AN ASSEMBLY COMPRISING A SCREW CARRYING A NUT INTERCONNECTED TO THE SCREW THROUGH A TRAIN OF BALLS UTILIZING THE HELICAL GROOVE OF THE SCREW AND THE HELICAL GROOVE OF THE NUT AS A RACE, SAID NUT BEING EXTERIORLY FORMED WITH A PAIR OF AXIAL FLATS EACH LYING ON A GEOMETRICAL PLANE AND A ROUNDED PORTION INTERSECTED BY THE GEOMETRICAL PLANES OF SAID FLATS, SAID ROUNDED PORTION HAVING AN ARCUATE GROOVE THEREIN CONFORMING TO THE CRUVATURE OF SAID ROUNDED PORTION PROVIDING FOR RECIRCULATION OF SAID BALLS TO AND FROM SAID RACE, SAID ARCUATE GROOVE EXTENDING DIAGONALLY ACROSS THE BODY OF THE NUT AND BEING
Claim 2
Dependent Claim
103 words
AN ASSEMBLY COMPRISING A SCREW CARRYING A NUT INTERCONNECTED TO THE SCREW THROUGH A TRAIN OF BALLS UTILIZING THE HELICAL GROOVE OF THE SCREW AND THE HELICAL GROOVE OF THE NUT AS A RACE, SAID NUT BEING EXTERIORLY FORMED WITH A PAIR OF AXIAL FLATS EACH LYING ON A GEOMETRICAL PLANE AND A ROUNDED PORTION INTERSECTED BY THE GEOMETRICAL PLANES OF SAID FLATS, SAID ROUNDED PORTION HAVING AN ARCUATE GROOVE THEREIN CONFORMING TO THE CRUVATURE OF SAID ROUNDED PORTION PROVIDING FOR RECIRCULATION OF SAID BALLS TO AND FROM SAID RACE, SAID ARCUATE GROOVE EXTENDING DIAGONALLY ACROSS THE BODY OF THE NUT AND BEING
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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |