US3555962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine tool
Assignee: New Britain Machine Co
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Filing: 1968-06-03
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Granted: 1971-01-19
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Expires: 1988-06-03
Abstract
Abstract A machine tool having a power driven rotatable tool spindle and an oil distribution and lubrication system for supplying oil to the bearings and tool spindle and preferably stabilizing the bearings, spindle and spindle housing at a predetermined operating temperature range.
Inventors
- 👤 Heinz K Wolf
- 👤 Alan G Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:03
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/14; B23Q11/141; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/26; B23Q11/12; B23Q11/126; B23Q11/127; B23Q11/143; B23Q11/145; F; F01; F01M; F01M5/00; Y; Y10; Y10T; Y10T408/00; Y10T408/44; Y10T409/00; Y10T409/30; Y10T409/303976; Y10T409/309352
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
183 words
In a machine tool: a. a rotatable tool spindle means having a tool-engaging end and an opposite end; b. bearing means supporting said spindle means for rotation and including first bearing means adjacent said opposite end of said spindle means, and tapered roller bearing means supporting said tool-engaging end of said spindle means; c. said spindle means including an axial bore, and liquid passages extending longitudinally of said spindle means from near said tool-engaging end and communicating with said bore at locations spaced from said tool-engaging end, said passages extending through said spindle means adjacent to said tapered roller bearing means; d. an oil inlet line in communication with said bore adjacent said opposite end of said spindle means; e. an oil outlet line in communication with said passages adjacent said tool-engaging end of said spindle means; and f. means for delivering oil to said bearing means during rotation of said spindle means, said means for delivering oil including means for spraying oil onto opposite faces of said bearing means, and means for circulating oil in communication with said tapered roller bearing means.
Claim 2
Dependent Claim
183 words
In a machine tool: a. a rotatable tool spindle means having a tool-engaging end and an opposite end; b. bearing means supporting said spindle means for rotation and including first bearing means adjacent said opposite end of said spindle means, and tapered roller bearing means supporting said tool-engaging end of said spindle means; c. said spindle means including an axial bore, and liquid passages extending longitudinally of said spindle means from near said tool-engaging end and communicating with said bore at locations spaced from said tool-engaging end, said passages extending through said spindle means adjacent to said tapered roller bearing means; d. an oil inlet line in communication with said bore adjacent said opposite end of said spindle means; e. an oil outlet line in communication with said passages adjacent said tool-engaging end of said spindle means; and f. means for delivering oil to said bearing means during rotation of said spindle means, said means for delivering oil including means for spraying oil onto opposite faces of said bearing means, and means for circulating oil in communication with said tapered roller bearing means.
Claim 3
Dependent Claim
143 words
In a machine tool: a. a spindle assembly including a rotatable tool spindle means having a tool-engaging end and an opposite end; b. bearing means supporting said spindle means for rotation and including tapered roller bearing means supporting said tool-engaging end of said spindle means; c. said spindle means including fluid-conducting passageway means formed therein, said passageway means comprising passages extending longitudinally in said spindle means adjacent to the inner race of said tapered roller bearing means; and d. inlet and outlet lines connected to said passageway means, one of said lines being in communication with said passages adjacent said tool-engaging end of said spindle means and the other of said lines being in communication with said passageway means at a location spaced from said tool-engaging end for permitting fluid to be circulated through said passages adjacent to said tapered roller bearing means.
Claim 4
Dependent Claim
143 words
In a machine tool: a. a spindle assembly including a rotatable tool spindle means having a tool-engaging end and an opposite end; b. bearing means supporting said spindle means for rotation and including tapered roller bearing means supporting said tool-engaging end of said spindle means; c. said spindle means including fluid-conducting passageway means formed therein, said passageway means comprising passages extending longitudinally in said spindle means adjacent to the inner race of said tapered roller bearing means; and d. inlet and outlet lines connected to said passageway means, one of said lines being in communication with said passages adjacent said tool-engaging end of said spindle means and the other of said lines being in communication with said passageway means at a location spaced from said tool-engaging end for permitting fluid to be circulated through said passages adjacent to said tapered roller bearing means.
Claim 5
Dependent Claim
55 words
A machine tool as claimed in claim 2 wherein said passageway means includes an axial bore in said spindle means, said bore being in communication with said passages, and said other line being in communication with said bore near said opposite end of said spindle means for permitting fluid to be circulated through said bore.
Claim 6
Dependent Claim
28 words
A machine tool as claimed in claim 2 including liquid spray means mounted in said spindle assembly adjacent opposite faces of at least some of said bearing means.
References Cited (Backward Citations)
US2067191A
Cited
US2212223A
Cited
US2398944A
Cited
US2686992A
Cited
US3221606A
Cited
US3391966A
Cited
US3442175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |