Patent US3222991A successfully refreshed from Google Patents.
US3222991A
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Bearing preload mechanism for machine tool
Assignee: Milacron Inc
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Filing: 1964-05-22
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Granted: 1965-12-14
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Expires: 1984-05-22
Abstract
No abstract record available.
Inventors
- 👤 Kendall F Bone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:42
CPC Classifications
F; F16; F16C; F16C25/00; F16C25/06; F16C25/08; B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/262; B23Q1/265; F16C2322/00; F16C2322/39; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/309352
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
IN A MACHINE TOOL HAVING A SPINDLE ROTATABLE AT A SELECTED ONE OF A PLURALITY OF SPEEDS AND SUPPORTED IN A SET OF BEARINGS RECEIVED AT A FIXED AXIAL LOCATION, A MECHANISM FOR AXIALLY PRELOADING THE BEARINGS OF SAID SET COMPRISING IN COMBINATION: (A) MEANS FOR PRODUCING A PRELOADING FORCE ACTING IN THE AXIAL DIRECTION OF THE SPINDLE AND HAVING A MAGNI-
Claim 2
Dependent Claim
62 words
IN A MACHINE TOOL HAVING A SPINDLE ROTATABLE AT A SELECTED ONE OF A PLURALITY OF SPEEDS AND SUPPORTED IN A SET OF BEARINGS RECEIVED AT A FIXED AXIAL LOCATION, A MECHANISM FOR AXIALLY PRELOADING THE BEARINGS OF SAID SET COMPRISING IN COMBINATION: (A) MEANS FOR PRODUCING A PRELOADING FORCE ACTING IN THE AXIAL DIRECTION OF THE SPINDLE AND HAVING A MAGNI-
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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |