US3241890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recirculating bearing
Assignee: Individual
•
Filing: 1963-10-07
•
Granted: 1966-03-22
•
Expires: 1983-10-07
Abstract
No abstract record available.
Inventors
- 👤 Ralph F Stallman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:13
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/04; F16C29/06; F16C29/0614; F16C29/0616; F16C29/0619
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
199 words
IN A RECIRCULATING BEARING, (A) AN ELONGATED BODY HAVING GENERALLY PARALLEL FLAT RACES EXTENDING FROM END TO END ON THE OPPOSITE FACE OF THE BODY, (B) A CONTINUOUS GUIDE RAIL SECURED TO SAID FACES, AND EXTENDING LONGITUDINALLY ALONG THE MIDDLE OF SAID FLAT RACES AND PROJECTING BEYOND THE ENDS OF SAID FLAT RACES, THE PORTIONS OF SAID GUIDE RAIL PROJECTING BEYOND THE ENDS OF SAID BODY FORMING A CURVED GUIDE AT EACH END FROM ONE RACT TO THE OTHER, (C) A SERIES OF ROLLERS IN SIDE BY SIDE ARRANGEMENT ROLLING ON SAID FLAT RACES AND AROUND SAID PROJECTING CURVED PORTIONS OF SAID GUIDE RAIL, EACH ROLLER HAVING AN ANNULAR RECESS FORMED IN ITS MIDDLE LOCATED OVER SAID GUIDE RAIL, (D) A CONTINUOUS RETAINING BAND FORMED PARALLEL WITH AND SPACED FROM SAID GUIDE RAIL AROUND SAID FLAT RACES AND AROUND SAID CURVED PROJECTIONS TO FORM AN OPEN SKELETON SUPPORT WITHIN THE ANNULAR RECESSES OF THE ROLLERS BEYOND EACH END OF SAID ELONGATED BODY WHEREBY SAID ROLLERS RIDE FREELY AROUND THE ENDS OF SAID BODY BETWEEN SAID GUIDE RAIL AND SAID BAND, (E) SAID GUIDE RAIL BEING NORMALLY SPACED FROM THE SIDES AND BOTTOM OF SAID ANNULAR RECESSES OF SAID ROLLERS,
Claim 2
Dependent Claim
199 words
IN A RECIRCULATING BEARING, (A) AN ELONGATED BODY HAVING GENERALLY PARALLEL FLAT RACES EXTENDING FROM END TO END ON THE OPPOSITE FACE OF THE BODY, (B) A CONTINUOUS GUIDE RAIL SECURED TO SAID FACES, AND EXTENDING LONGITUDINALLY ALONG THE MIDDLE OF SAID FLAT RACES AND PROJECTING BEYOND THE ENDS OF SAID FLAT RACES, THE PORTIONS OF SAID GUIDE RAIL PROJECTING BEYOND THE ENDS OF SAID BODY FORMING A CURVED GUIDE AT EACH END FROM ONE RACT TO THE OTHER, (C) A SERIES OF ROLLERS IN SIDE BY SIDE ARRANGEMENT ROLLING ON SAID FLAT RACES AND AROUND SAID PROJECTING CURVED PORTIONS OF SAID GUIDE RAIL, EACH ROLLER HAVING AN ANNULAR RECESS FORMED IN ITS MIDDLE LOCATED OVER SAID GUIDE RAIL, (D) A CONTINUOUS RETAINING BAND FORMED PARALLEL WITH AND SPACED FROM SAID GUIDE RAIL AROUND SAID FLAT RACES AND AROUND SAID CURVED PROJECTIONS TO FORM AN OPEN SKELETON SUPPORT WITHIN THE ANNULAR RECESSES OF THE ROLLERS BEYOND EACH END OF SAID ELONGATED BODY WHEREBY SAID ROLLERS RIDE FREELY AROUND THE ENDS OF SAID BODY BETWEEN SAID GUIDE RAIL AND SAID BAND, (E) SAID GUIDE RAIL BEING NORMALLY SPACED FROM THE SIDES AND BOTTOM OF SAID ANNULAR RECESSES OF SAID ROLLERS,
References Cited (Backward Citations)
US1275715A
Cited
FR756333A
Cited
US2049394A
Cited
US2334227A
Cited
US2930481A
Cited
US3003828A
Cited
US2995908A
Cited
US3101978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |