Patent US3333484A successfully refreshed from Google Patents.
US3333484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive mechanism with recirculating ball bearing connection
Assignee: Farrel Corp
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Filing: 1965-08-27
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Granted: 1967-08-01
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Expires: 1985-08-27
Abstract
No abstract record available.
Inventors
- 👤 Young Frederic William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:27
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/22; F16H25/2204; F16H25/2214; F16H25/2228; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19744; Y10T74/19749; Y10T74/19763
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A DRIVE MECHANISM OF THE RECIRCULATING BALL TYPE, COMPRISING (A) A ROTATABLE SCREW MEMBER HAVING AN EXTERNAL HELICAL GROOVE, AND AN INTERNAL DUCT, OPPOSITE ENDS OF WHICH OPEN ONTO SAID GROOVE AT AXIALLY SPACED POINTS THEREALONG, (B) MEANS FOR GUIDING A PLURALITY OF BALLS FOR ROLLING MOVEMENT IN SAID GROOVE, AND THROUGH SAID DUCT, UPON THE ROTATION OF SAID SCREW MEMBER, INCLUDING (1) A SEGMENTAL NUT MEMBER HAVING A CONCAVE FACE WITH A PLURALITY OF AXIALLY SPACED, SEGMENTALHELICAL GROOVES FORMED THEREIN AND DISPOSED TO CONFRONT AND REGISTER WITH COOPERATING PORTIONS OF SAID GROOVE ON SAID SCREW MEMBER COAXIALLY THEREOF, AND (C) MEANS MOUNTING ONE OF SAID MEMBERS FOR AXIAL MOVEMENT RELATIVE TO THE OTHER OF SAID MEMBERS UPON ROTATION OF SAID SCREW MEMBER AND THE MOVEMENT OF SAID BALLS BETWEEN SAID MEMBERS.
Claim 2
Dependent Claim
132 words
A DRIVE MECHANISM OF THE RECIRCULATING BALL TYPE, COMPRISING (A) A ROTATABLE SCREW MEMBER HAVING AN EXTERNAL HELICAL GROOVE, AND AN INTERNAL DUCT, OPPOSITE ENDS OF WHICH OPEN ONTO SAID GROOVE AT AXIALLY SPACED POINTS THEREALONG, (B) MEANS FOR GUIDING A PLURALITY OF BALLS FOR ROLLING MOVEMENT IN SAID GROOVE, AND THROUGH SAID DUCT, UPON THE ROTATION OF SAID SCREW MEMBER, INCLUDING (1) A SEGMENTAL NUT MEMBER HAVING A CONCAVE FACE WITH A PLURALITY OF AXIALLY SPACED, SEGMENTALHELICAL GROOVES FORMED THEREIN AND DISPOSED TO CONFRONT AND REGISTER WITH COOPERATING PORTIONS OF SAID GROOVE ON SAID SCREW MEMBER COAXIALLY THEREOF, AND (C) MEANS MOUNTING ONE OF SAID MEMBERS FOR AXIAL MOVEMENT RELATIVE TO THE OTHER OF SAID MEMBERS UPON ROTATION OF SAID SCREW MEMBER AND THE MOVEMENT OF SAID BALLS BETWEEN SAID MEMBERS.
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |