Patent US3773398A successfully refreshed from Google Patents.
US3773398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller bearing
Assignee: Individual
•
Filing: 1972-03-27
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Granted: 1973-11-20
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Expires: 1992-03-27
Abstract
Abstract A roller bearing having rollers which are tubular metal cylinders. The inside of each of said metal cylinders is filled with a lubricant and small holes are bored directly through the metal cylinders. Alternatively, a plurality of metal cylinders is juxtaposed with minute spacings formed between adjacent metal cylinders, respectively. Accordingly, the lubricant is extruded outwardly from the inside of the metal cylinders through the small holes or minute spacings in accordance with the rotary movement of the roller bearing.
Inventors
- 👤 K Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:33
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/34; F16C33/66; F16C33/6603; F16C33/6607; F16C33/6614; F16C33/6637; F16C33/664; F16C33/6651; F16C19/00; F16C19/22; F16C19/24; F16C19/26; F16C2300/00; F16C2300/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
54 words
A roller bearing comprising an inner race, an outer race, and a plurality of tubular rollers rotatable between said inner and said outer races, each of said tubular rollers having a plurality of penetration holes on the peripheral surface thereof, and a plurality of balls and a lubricant contained within each of said rollers.
Claim 2
Dependent Claim
54 words
A roller bearing comprising an inner race, an outer race, and a plurality of tubular rollers rotatable between said inner and said outer races, each of said tubular rollers having a plurality of penetration holes on the peripheral surface thereof, and a plurality of balls and a lubricant contained within each of said rollers.
Claim 3
Dependent Claim
25 words
A roller bearing as claimed in claim 1 wherein the diameter of said balls is substantially equal to the inner diameter of said tubular rollers.
Claim 4
Dependent Claim
20 words
A roller bearing as claimed in claim 1 further comprising means for retaining said balls within each of said rollers.
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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |