US3302986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double row anti-friction bearing
Assignee: Eisenwerk Rothe Erde GmbH
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Filing: 1964-12-08
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Granted: 1967-02-07
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Expires: 1984-12-08
Abstract
No abstract record available.
Inventors
- 👤 Grolman Wilhelm
- 👤 Heimsath Gerd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:02
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/49; F16C19/22; F16C19/34; F16C19/38; F16C19/381; F16C2300/00; F16C2300/10; F16C2300/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A DOUBLE ROW ANTI-FRICTION BEARING FOR TAKING UP RADIAL AND AXIAL THRUSTS COMPRISING, IN COMBINATION, INNER AND OUTER RACE MEANS DEFINING BETWEEN THEMSELVES A PAIR OF RACES SPACED FROM EACH OTHER IN AXIAL DIRECTION, ONE OF SAID RACES HAVING CYLINDRICAL SURFACE PORTIONS COAXIAL WITH SAID BEARING AND ANNULAR PLANE SURFACE PORTIONS NORMAL TO THE AXIS OF SAID BEARING AND THE OTHER OF SAID RACES HAVING PLANE ANNULAR SURFACE PORTIONS NORMAL TO SAID AXIS; AND TWO GROUPS OF ROLLING ELEMENTS RESPECTIVELY LOCATED IN SAID RACES, SAID ROLLING ELEMENTS BEING CONSTRUCTED AND ENGAGING SAID SURFACE PORTIONS SO THAT THE ONE GROUP OF ROLLING ELEMENTS LOCATED IN SAID ONE OF SAID RACES WILL TAKE UP RADIAL AND AXIAL THRUSTS AND THE OTHER GROUP OF ROLLING ELEMENTS LOCATED IN SAID ONE OF SAID RACES WILL TAKE UP ONLY AXIAL THRUSTS IMPARTED TO SAID BEARING.
Claim 2
Dependent Claim
140 words
A DOUBLE ROW ANTI-FRICTION BEARING FOR TAKING UP RADIAL AND AXIAL THRUSTS COMPRISING, IN COMBINATION, INNER AND OUTER RACE MEANS DEFINING BETWEEN THEMSELVES A PAIR OF RACES SPACED FROM EACH OTHER IN AXIAL DIRECTION, ONE OF SAID RACES HAVING CYLINDRICAL SURFACE PORTIONS COAXIAL WITH SAID BEARING AND ANNULAR PLANE SURFACE PORTIONS NORMAL TO THE AXIS OF SAID BEARING AND THE OTHER OF SAID RACES HAVING PLANE ANNULAR SURFACE PORTIONS NORMAL TO SAID AXIS; AND TWO GROUPS OF ROLLING ELEMENTS RESPECTIVELY LOCATED IN SAID RACES, SAID ROLLING ELEMENTS BEING CONSTRUCTED AND ENGAGING SAID SURFACE PORTIONS SO THAT THE ONE GROUP OF ROLLING ELEMENTS LOCATED IN SAID ONE OF SAID RACES WILL TAKE UP RADIAL AND AXIAL THRUSTS AND THE OTHER GROUP OF ROLLING ELEMENTS LOCATED IN SAID ONE OF SAID RACES WILL TAKE UP ONLY AXIAL THRUSTS IMPARTED TO SAID BEARING.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |