Patent US3306124A successfully refreshed from Google Patents.
US3306124A
Expired / Lapsed
US
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Screw and nut devices
Assignee: TRW Steering Systems Ltd
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Filing: 1964-02-06
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Granted: 1967-02-28
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Expires: 1984-02-06
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:19
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
142 words
A SCREW AND NUT DEVICE COMPRISING A SCREW MEMBER AND A NUT MEMBER IN ROTATABLE RELATION TO EACH OTHER ABOUT A LONGITUDINAL AXIS; SAID MEMBERS BEING SUBSTANTIALLY CONCENTRICALLY SPACED FROM EACH OTHER AND DEFINING THEREBETWEEN A HELICAL TRACK; SPHERICAL BALLS POSITIONED BETWEEN SAID TRACK; AND MEANS FOR TRANSFERRING SAID BALLS FROM ONE POSITION ALONG SAID TRACK TO ANOTHER POSITION ALONG SAID TRACK IN A PATH PARALLEL TO SAID LONGITUDINAL AXIS; WHEREIN SAID MEANS INCLUDES A PATH; SAID PATH BEING DEFINED BY AN INSERT MEMBER HAVING SCOOPED BALL GUIDE MEANS FOR PROVIDING TERMINATIONS FROM SAID HELICAL TRACK AT EACH OF SAID POSITIONS AND FOR GUIDING SAID BALLS INTO SAID PATH; WHEREIN SAID MEMBER EXTENDS THROUGH A WALL OF SAID NUT AND IS HELD AGAINST RADIAL MOVEMENT BY MEANS OF INTERNAL FLANGES WHICH EXTEND IN A CIRCUMFERENTIAL DIRECTION INSIDE A BORE IN SAID NUT.
Claim 2
Dependent Claim
142 words
A SCREW AND NUT DEVICE COMPRISING A SCREW MEMBER AND A NUT MEMBER IN ROTATABLE RELATION TO EACH OTHER ABOUT A LONGITUDINAL AXIS; SAID MEMBERS BEING SUBSTANTIALLY CONCENTRICALLY SPACED FROM EACH OTHER AND DEFINING THEREBETWEEN A HELICAL TRACK; SPHERICAL BALLS POSITIONED BETWEEN SAID TRACK; AND MEANS FOR TRANSFERRING SAID BALLS FROM ONE POSITION ALONG SAID TRACK TO ANOTHER POSITION ALONG SAID TRACK IN A PATH PARALLEL TO SAID LONGITUDINAL AXIS; WHEREIN SAID MEANS INCLUDES A PATH; SAID PATH BEING DEFINED BY AN INSERT MEMBER HAVING SCOOPED BALL GUIDE MEANS FOR PROVIDING TERMINATIONS FROM SAID HELICAL TRACK AT EACH OF SAID POSITIONS AND FOR GUIDING SAID BALLS INTO SAID PATH; WHEREIN SAID MEMBER EXTENDS THROUGH A WALL OF SAID NUT AND IS HELD AGAINST RADIAL MOVEMENT BY MEANS OF INTERNAL FLANGES WHICH EXTEND IN A CIRCUMFERENTIAL DIRECTION INSIDE A BORE IN SAID NUT.
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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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |