US3409338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thrust bearing
Assignee: Rollway Bearing Co Inc
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Filing: 1966-11-14
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Granted: 1968-11-05
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Expires: 1986-11-14
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Root
- 👤 William F Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:25
CPC Classifications
F; F16; F16C; F16C19/00; F16C19/22; F16C19/30; F16C19/32; F16C23/00; F16C23/06; F16C23/08; F16C23/082; F16C23/084; F16C27/00; F16C27/08; F16C2322/00; F16C2322/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A THRUST BEARING COMPRISING AN UPPER RACE AND A LOWER RACE WITH A PLURALITY OF ANTI-FRICTION ROLLER COMPLEMENTS LOCATED THEREBETWEEN, THE ROLLER ENGAGING FACES OF SAID RACE BEING PARALLEL, EACH OF SAID ROLLER COMPLEMENTS COMPRISING A PLURALITY OF INDIVIDUAL ROLLER ELEMENTS OF A PRE-SELECTED NUMBER AND AXIAL LENGTH ARRANGED IN CIRCUMFERENTIAL ROWS ABOUT THE CENTER OF SAID BEARING, EACH SUCCESSIVE ROWS OF ROLLER ELEMENTS HAVING A GREATER NUMBER OF ROLLER ELEMENTS THAN THE PRECEDING ROW, THE DIAMETER OF ROLLER ELEMENTS IN EACH OF SAID ROWS BEING THE SAME, MEANS TO RETAIN SAID ROWS OF ROLLER COMPLEMENTS BETWEEN THE ENGAGING FACES OF SAID UPPER AND LOWER FACES, SAID UPPER RACE HAVING ITS UPPER SURFACE FORMED COMPLEMENTARY TO THE SURFACE OF A THRUST ELEMENT, AN INNER PORTION OF SAID LOWER RACE BEING CANTILEVERED ON ITS UNDER SURFACE TO DEFLECT UNDER THRUST LOADS APPLIED TO SAID BEARING, A RING ELEMENT POSITIONED IN THE CENTER PORTION OF SAID LOWER RACE AND BEING SPACED A PREDETERMINED DISTANCE FROM THE ROLLER ENGAGING FACE OF SAID UPPER RACE, AND RING ELEMENT ENGAGING SAID UPPER RACE UPON DEFLECTION OF THE UPPER
Claim 2
Dependent Claim
183 words
A THRUST BEARING COMPRISING AN UPPER RACE AND A LOWER RACE WITH A PLURALITY OF ANTI-FRICTION ROLLER COMPLEMENTS LOCATED THEREBETWEEN, THE ROLLER ENGAGING FACES OF SAID RACE BEING PARALLEL, EACH OF SAID ROLLER COMPLEMENTS COMPRISING A PLURALITY OF INDIVIDUAL ROLLER ELEMENTS OF A PRE-SELECTED NUMBER AND AXIAL LENGTH ARRANGED IN CIRCUMFERENTIAL ROWS ABOUT THE CENTER OF SAID BEARING, EACH SUCCESSIVE ROWS OF ROLLER ELEMENTS HAVING A GREATER NUMBER OF ROLLER ELEMENTS THAN THE PRECEDING ROW, THE DIAMETER OF ROLLER ELEMENTS IN EACH OF SAID ROWS BEING THE SAME, MEANS TO RETAIN SAID ROWS OF ROLLER COMPLEMENTS BETWEEN THE ENGAGING FACES OF SAID UPPER AND LOWER FACES, SAID UPPER RACE HAVING ITS UPPER SURFACE FORMED COMPLEMENTARY TO THE SURFACE OF A THRUST ELEMENT, AN INNER PORTION OF SAID LOWER RACE BEING CANTILEVERED ON ITS UNDER SURFACE TO DEFLECT UNDER THRUST LOADS APPLIED TO SAID BEARING, A RING ELEMENT POSITIONED IN THE CENTER PORTION OF SAID LOWER RACE AND BEING SPACED A PREDETERMINED DISTANCE FROM THE ROLLER ENGAGING FACE OF SAID UPPER RACE, AND RING ELEMENT ENGAGING SAID UPPER RACE UPON DEFLECTION OF THE UPPER
References Cited (Backward Citations)
US1956648A
Cited
US2959458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |