US3132719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball nut and screw lubricator
Assignee: VARD DIVISION ROYAL IND
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Filing: 1962-05-14
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Granted: 1964-05-12
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Expires: 1982-05-14
Abstract
No abstract record available.
Inventors
- 👤 Robert R Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:08
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/22; F16H25/2204; F16H57/00; F16H57/04; F16H57/048; F16H57/0497; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18744; Y10T74/19; Y10T74/19991; Y10T74/19995
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
A LUBRICATING DEVICE FOR A BALL NUT AND SCREW DRIVE IN WHICH BEARING BALLS ROLL IN COOPERATING HELICAL SEMICIRCULARLY CONTOURED GROOVES IN THE SCREW AND NUT OF DIAMETER SUBSTANTIALLY EQUAL TO THE DIAMETER OF THE BEARING BALLS AND WHICH DEFINE HELICAL BEARING BALL RACE, THE DEVICE COMPRISING A HOLLOW TUBE SLIDEABLY SUPPORTED BY THE NUT AT A LOCATION SPACED FROM THE BEARING BALLS AND EXTENDING AT RIGHT ANGLES TO THE AXIS OF ROTATION OF THE SCREW, THE TUBE HAVING A SPHERICAL SURFACE FORMED AT THE END PROJECTING TOWARD THE SCREW TO PROVIDE A SOCKET, A LUBRICATING BALL OF DIAMETER SMALLER THAN THE OUTSIDE DIAMETER OF THE TUBE AND LARGER THAN THE INSIDE DIAMETER OF THE TUBE BUT OF DIAMETER EQUAL TO THE DIAMETER OF THE
Claim 2
Dependent Claim
125 words
A LUBRICATING DEVICE FOR A BALL NUT AND SCREW DRIVE IN WHICH BEARING BALLS ROLL IN COOPERATING HELICAL SEMICIRCULARLY CONTOURED GROOVES IN THE SCREW AND NUT OF DIAMETER SUBSTANTIALLY EQUAL TO THE DIAMETER OF THE BEARING BALLS AND WHICH DEFINE HELICAL BEARING BALL RACE, THE DEVICE COMPRISING A HOLLOW TUBE SLIDEABLY SUPPORTED BY THE NUT AT A LOCATION SPACED FROM THE BEARING BALLS AND EXTENDING AT RIGHT ANGLES TO THE AXIS OF ROTATION OF THE SCREW, THE TUBE HAVING A SPHERICAL SURFACE FORMED AT THE END PROJECTING TOWARD THE SCREW TO PROVIDE A SOCKET, A LUBRICATING BALL OF DIAMETER SMALLER THAN THE OUTSIDE DIAMETER OF THE TUBE AND LARGER THAN THE INSIDE DIAMETER OF THE TUBE BUT OF DIAMETER EQUAL TO THE DIAMETER OF THE
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) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |