Combination cage and seal for antifriction bearings
Abstract
Abstract A COMBINATION BEARING CAGE AND SEAL IS PROVIDED FOR AN ANTIFRICTION BEARING HAVING INNER AND OUTER RINGS COMPRISING AN ANNULAR MEMBER HAVING A TUBULAR BODY PORTION OF PREDETERMINED THICKNESS TO ENABLE INSERTION OF ONE END THEREOF INTO THE ANNULAR SPACE OF THE BEARING, SAID ONE END OF THE TUBULAR BODY HAVING A PLURALITY OF BALL POCKETS WHICH MAY BE SPHERICAL OR CYLINDRICAL IN SHAPE DISPOSED RADIALLY ABOUT SAID END, THE POCKETS BEING FORMED SO AS TO FIT AGAINST THE BEARING BALLS. THE OTHER END OF THE TUBULAR MEMBER HAS AN ENLARGED FLANGE PORTION FOR SEALING OFF ONE SIDE OF THE ANNULAR BEARING SPACE. THE CAGE MAY ADVANTAGEOUSLY BE MADE OF PLASTIC INCLUDING SYNTHETIC OR NATURAL RUBBER WITH A HARD TUBULAR PORTION, AT LEAST A PORTION OF THE FLANGE BEING PREFERABLY RESILIENT TO PROVIDE SEALING CONTACT AT THE END FACE OF THE BEARING. THE CAGE MAY BE MOLDED WITH ONE OR MORE METAL INSERTS TO ADD STRENGTH THERETO.
Inventors
- 👤 William D Mcallister
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |