Patent US4286467A successfully refreshed from Google Patents.
US4286467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of selecting rollers for high-speed journal bearings
Assignee: IHO Holding GmbH and Co KG
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Filing: 1980-01-09
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Granted: 1981-09-01
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Expires: 2000-01-09
Abstract
Abstract Rollers for a high-speed journal bearing are tested for any unbalance before assembly by being rotated at high velocity while lodged in a movably supported air bearing. Rollers with a dynamic unbalance above a predetermined limit are rejected.
Inventors
- 👤 Hans Kober
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:29
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/22; F16C19/24; F16C19/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A method of selecting rollers for assembly into high-speed journal bearings, comprising the steps of: cradling each roller in a generally semicylindrical cup of an air bearing with a horizontal axis; resiliently mounting said air bearing on a supporting surface; frictionally entraining each roller at high speed by a horizontal stretch of an overlying endless belt in tangential contact therewith to set the roller in rotation about a spin axis substantially coinciding with said horizontal axis; measuring rocking motions of said air bearing due to deviations of said spin axis from said horizontal axis; and eliminating rollers for which the extent of said rocking motion exceeds a predetermined limit.
Claim 2
Independent Claim
109 words
A method of selecting rollers for assembly into high-speed journal bearings, comprising the steps of: cradling each roller in a generally semicylindrical cup of an air bearing with a horizontal axis; resiliently mounting said air bearing on a supporting surface; frictionally entraining each roller at high speed by a horizontal stretch of an overlying endless belt in tangential contact therewith to set the roller in rotation about a spin axis substantially coinciding with said horizontal axis; measuring rocking motions of said air bearing due to deviations of said spin axis from said horizontal axis; and eliminating rollers for which the extent of said rocking motion exceeds a predetermined limit.
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) | 1984-08-31 | 1985-03-02 | 1985-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-31 | 1989-03-02 | 1989-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-31 | 1993-03-02 | 1993-09-01 | $7700.00 | Window Closed / Lapsed |