US3239282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball bearing retainer
Assignee: Die Supply Corp
•
Filing: 1962-06-20
•
Granted: 1966-03-08
•
Expires: 1982-06-20
Abstract
No abstract record available.
Inventors
- 👤 Herman T Schroll
- 👤 John A Muir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:01
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/38; F16C33/40; F16C29/00; F16C29/04; F16C33/42; F16C33/422; F16C33/427
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A BALL BEARING RETAINER FOR DIE SETS COMPRISING: AN INNER-CYLINDRICAL SHELL HAVING A PLURALITY OF CIRCULAR OPENINGS SIZED TO SEAT BALL BEARINGS THEREIN; A PLURALITY OF CYLINDRICAL SECTORS SECURED TOGETHER TO FORM AN OUTERCYLINDRICAL SHELL OF CIRCUMFERENCE SUFFICIENT TO ENCIRCLE SAID INNER-SHELL IN CONCENTRICALLY SPACED APART RELATIONSHIP SAID SECTORS HAVING A PLURALITY OF CIRCULAR OPENINGS POSITIONED TO REGISTER WITH THE OPENINGS OF SAID INNER-SHELL AND SIZED TO RETAIN SAID BALL BEARINGS THEREBETWEEN; EACH SECTOR BEING PERMANENTLY JOINED TO AN ADJACENT SECTOR BY ABUTTING EDGES DEFINED BY A LINE INCLINED TO THE GENERATRIX OF THE OUTER-SHELL; SAID REGISTERED OPENINGS BEING ALIGNED IN ROWS PARALLEL TO SAID ABUTTING EDGES; AND SPACER RINGS POSITIONED AND SECURED AT OPPOSITE ENDS OF SAID RETAINER BETWEEN SAID INNER AND OUTER CYLINDRICAL SHELLS.
Claim 2
Dependent Claim
126 words
A BALL BEARING RETAINER FOR DIE SETS COMPRISING: AN INNER-CYLINDRICAL SHELL HAVING A PLURALITY OF CIRCULAR OPENINGS SIZED TO SEAT BALL BEARINGS THEREIN; A PLURALITY OF CYLINDRICAL SECTORS SECURED TOGETHER TO FORM AN OUTERCYLINDRICAL SHELL OF CIRCUMFERENCE SUFFICIENT TO ENCIRCLE SAID INNER-SHELL IN CONCENTRICALLY SPACED APART RELATIONSHIP SAID SECTORS HAVING A PLURALITY OF CIRCULAR OPENINGS POSITIONED TO REGISTER WITH THE OPENINGS OF SAID INNER-SHELL AND SIZED TO RETAIN SAID BALL BEARINGS THEREBETWEEN; EACH SECTOR BEING PERMANENTLY JOINED TO AN ADJACENT SECTOR BY ABUTTING EDGES DEFINED BY A LINE INCLINED TO THE GENERATRIX OF THE OUTER-SHELL; SAID REGISTERED OPENINGS BEING ALIGNED IN ROWS PARALLEL TO SAID ABUTTING EDGES; AND SPACER RINGS POSITIONED AND SECURED AT OPPOSITE ENDS OF SAID RETAINER BETWEEN SAID INNER AND OUTER CYLINDRICAL SHELLS.
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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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |