US3103835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed screw arrangement for a machine tool
Assignee: F Jos Lamb Co
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Filing: 1962-01-11
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Granted: 1963-09-17
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Expires: 1982-01-11
Abstract
No abstract record available.
Inventors
- 👤 John K Rye
- 👤 Orval A Opperthauser
- 👤 Oltean George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:48
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/22; B23Q5/34; B23Q5/38; B23Q5/40; B23Q5/402; Y; Y10; Y10T; Y10T74/00; Y10T74/17; Y10T74/173
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
IN A MACHINE TOOL OF THE TYPE COMPRISING A BASE, A CARRIAGE RECIPROCABLE ON THE BASE TO FEED AND RETRACT A CUTTING TOOL MOUNTED ON THE CARRIAGE, THE COMBINATION COMPRISING A FEED SCREW ON THE BASE, A MOTOR FOR DRIVING THE FEED SCREW, A MOTOR DRIVEN WORM GEAR ON THE CARRIAGE, A SLEEVE ROTATABLY SUPPORTED ON THE CARRIAGE IN GENERALLY CONCENTRIC RELATION WITH THE AXIS OF THE FEED SCREW, A WORM WHEEL MOUNTED ON THE SLEEVE TO ROTATE THE LATTER AND MESHING WITH THE WORM GEAR, SAID SLEEVE HAVING A GENERALLY SPHERICAL BEARING SEAT CONCENTRIC WITH THE AXIS OF THE SHAFT, A NUT ENGAGED WITH SAID FEED SCREW AND HAVING AN OUTER SURFACE PORTION SEATED IN SAID SPHERICAL BEARING SEAT IN THE SLEEVE, A PLURALITY OF SPLINE GROOVES ON THE OUTER SURFACE OF THE NUT, SAID SLEEVE HAVING A PLURALITY OF SOCKETS THEREIN REGISTERING WITH SAID SPLINE GROOVES ON THE NUT AND A BEARING BALL IN EACH GROOVE PROJECTING INTO THE CORRESPONDING SOCKET ON THE SLEEVE WITH A CLOSE FIT.
Claim 2
Dependent Claim
170 words
IN A MACHINE TOOL OF THE TYPE COMPRISING A BASE, A CARRIAGE RECIPROCABLE ON THE BASE TO FEED AND RETRACT A CUTTING TOOL MOUNTED ON THE CARRIAGE, THE COMBINATION COMPRISING A FEED SCREW ON THE BASE, A MOTOR FOR DRIVING THE FEED SCREW, A MOTOR DRIVEN WORM GEAR ON THE CARRIAGE, A SLEEVE ROTATABLY SUPPORTED ON THE CARRIAGE IN GENERALLY CONCENTRIC RELATION WITH THE AXIS OF THE FEED SCREW, A WORM WHEEL MOUNTED ON THE SLEEVE TO ROTATE THE LATTER AND MESHING WITH THE WORM GEAR, SAID SLEEVE HAVING A GENERALLY SPHERICAL BEARING SEAT CONCENTRIC WITH THE AXIS OF THE SHAFT, A NUT ENGAGED WITH SAID FEED SCREW AND HAVING AN OUTER SURFACE PORTION SEATED IN SAID SPHERICAL BEARING SEAT IN THE SLEEVE, A PLURALITY OF SPLINE GROOVES ON THE OUTER SURFACE OF THE NUT, SAID SLEEVE HAVING A PLURALITY OF SOCKETS THEREIN REGISTERING WITH SAID SPLINE GROOVES ON THE NUT AND A BEARING BALL IN EACH GROOVE PROJECTING INTO THE CORRESPONDING SOCKET ON THE SLEEVE WITH A CLOSE FIT.
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) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |