US3244022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball screw and nut assembly
Assignee: SARGENT ENGINEERING Corp
•
Filing: 1964-04-20
•
Granted: 1966-04-05
•
Expires: 1984-04-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Paul V Wysong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:00
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/24; F16H25/2418; F16H25/22; F16H25/2204; F16H2025/2242; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19721; Y10T74/19744; Y10T74/19749
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN A BALL SCREW AND NUT ASSEMBLY, THE COMBINATION OF: A SCREW HAVING AN EXTERNAL BALL-RECEIVING GROOVE, A NUT HAVING AN INTERNAL RECESS AT EACH END AND HAVING AN INTERNAL BALL-RECEIVING GROOVES EXTENDING BETWEEN THE RECESSES, A PLURALITY OF BALLS IN SAID GROOVES INTERPOSED BETWEEN SAID SCREW AND SAID NUT, EACH OF SAID GROOVES BEING SHAPED FOR CONTACT WITH THE BALLS ONLY UPON FLANKS OF THE GROOVES TO CARRY AXIAL LOADS, EACH RECESS HAVING A SURFACE PROVIDING RADIAL CONTACT WITH THE BALLS TO CARRY RADIAL LOADS, WHEREBY ROCKING MOVEMENT OF THE NUT RELATIVE TO THE SCREW IS MINIMIZED.
Claim 2
Dependent Claim
98 words
IN A BALL SCREW AND NUT ASSEMBLY, THE COMBINATION OF: A SCREW HAVING AN EXTERNAL BALL-RECEIVING GROOVE, A NUT HAVING AN INTERNAL RECESS AT EACH END AND HAVING AN INTERNAL BALL-RECEIVING GROOVES EXTENDING BETWEEN THE RECESSES, A PLURALITY OF BALLS IN SAID GROOVES INTERPOSED BETWEEN SAID SCREW AND SAID NUT, EACH OF SAID GROOVES BEING SHAPED FOR CONTACT WITH THE BALLS ONLY UPON FLANKS OF THE GROOVES TO CARRY AXIAL LOADS, EACH RECESS HAVING A SURFACE PROVIDING RADIAL CONTACT WITH THE BALLS TO CARRY RADIAL LOADS, WHEREBY ROCKING MOVEMENT OF THE NUT RELATIVE TO THE SCREW IS MINIMIZED.
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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |