Patent US4120538A successfully refreshed from Google Patents.
US4120538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pillow block including plurality of self-aligning linear motion bearings
Assignee: Brown and Sharpe Manufacturing Co
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Filing: 1977-03-24
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Granted: 1978-10-17
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Expires: 1997-03-24
Abstract
Abstract A pillow block for the reception of self-aligning linear motion bearings which pillow block can be made up of two or more self-aligning bearing units which will allow increased bearing surface with an ease of alignment.
Inventors
- 👤 William E. Headen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:33
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/04; F16C29/06; F16C29/0676; F16C29/001; F16C29/008
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
135 words
A mounting unit for supporting an aligning round machine tool ways comprising an elongated first pillow block having a base and end faces, said base fastened to a machine tool frame, said first block having a cylindrical opening therethrough on an axis substantially parallel to said base and normal to the end faces, anti-friction bearing assembly received in said cylindrical central opening of said first block, a flangeless second block having a cylindrical central opening therethrough, said second block having a plurality of bores parallel to the axis of said cylindrical central opening of said second blocks, bolts having a diameter less than the diameter of said bores received therein and threadingly received in one end face of said first block, a unitary second anti-friction bearing assembly received in the cylindrical openings of each block.
Claim 2
Dependent Claim
135 words
A mounting unit for supporting an aligning round machine tool ways comprising an elongated first pillow block having a base and end faces, said base fastened to a machine tool frame, said first block having a cylindrical opening therethrough on an axis substantially parallel to said base and normal to the end faces, anti-friction bearing assembly received in said cylindrical central opening of said first block, a flangeless second block having a cylindrical central opening therethrough, said second block having a plurality of bores parallel to the axis of said cylindrical central opening of said second blocks, bolts having a diameter less than the diameter of said bores received therein and threadingly received in one end face of said first block, a unitary second anti-friction bearing assembly received in the cylindrical openings of each block.
Claim 3
Dependent Claim
19 words
A mounting unit as in claim 1 wherein each said bearing assembly has centrally located peripheral partial spherical surface.
Claim 4
Dependent Claim
196 words
A mounting unit for supporting an aligning round machine tool ways comprising an elongated first pillow block having a base and end faces, said base fastened to a machine tool frame, said first block having a cylindrical opening therethrough on an axis substantially parallel to said base and normal to the end faces, a flangeless second block having a cylindrical central opening therethrough, said second block having a plurality of bores parallel to the axis of said cylindrical central opening of said second block, a third block having a cylindrical central opening therethrough, said third block having a plurality of bores parallel to the axis of said cylindrical opening of said third block, bolts having a diameter less than the diameter of said bores received therein and threadingly received in each end face of said first block, and bearing means comprising of at least a first anti-friction bearing assembly received in said cylindrical central opening of said second block and extending partially into the cylindrical opening of said first block, a second anti-friction bearing assembly received in said cylindrical central opening of said third block and extending partially into the cylindrical opening of said first block.
Claim 5
Dependent Claim
196 words
A mounting unit for supporting an aligning round machine tool ways comprising an elongated first pillow block having a base and end faces, said base fastened to a machine tool frame, said first block having a cylindrical opening therethrough on an axis substantially parallel to said base and normal to the end faces, a flangeless second block having a cylindrical central opening therethrough, said second block having a plurality of bores parallel to the axis of said cylindrical central opening of said second block, a third block having a cylindrical central opening therethrough, said third block having a plurality of bores parallel to the axis of said cylindrical opening of said third block, bolts having a diameter less than the diameter of said bores received therein and threadingly received in each end face of said first block, and bearing means comprising of at least a first anti-friction bearing assembly received in said cylindrical central opening of said second block and extending partially into the cylindrical opening of said first block, a second anti-friction bearing assembly received in said cylindrical central opening of said third block and extending partially into the cylindrical opening of said first block.
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) | 1981-10-16 | 1982-04-17 | 1982-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-16 | 1986-04-17 | 1986-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-16 | 1990-04-17 | 1990-10-17 | $7700.00 | Window Closed / Lapsed |