Patent US3699761A successfully refreshed from Google Patents.
Patent JPS6412461A successfully refreshed from Google Patents.
US3137920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making ball bearings
Assignee: Individual
•
Filing: 1962-02-21
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Granted: 1964-06-23
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Expires: 1982-02-21
Abstract
No abstract record available.
Inventors
- 👤 Bushi Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:53
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/58; F16C33/64; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49682
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
THE METHOD OF MAKING A TWO-PART BALL BEARING COMPRISING THE STEPS OF PROVIDING AN OUTER RACE MEMBER HAVING A RACEWAY OF A RADIUS CORRESPONDING TO THE RADII OF SAID BALL BEARINGS, PROVIDING A PARTIALLY FORMED INNER RACE MEMBER HAVING A CURVED SHOULDER OF GREATER RADIUS THAN SAID RADII OF SAID BEARINGS AND A GENERALLY STRAIGHT, ANNULAR UPPER PORTION, DISPOSING A FULL COMPLEMENT OF SAID BALL BEARINGS BETWEEN SAID INNER AND OUTER RACE MEMBERS, SAID BEARING RESTING IN SAID RACEWAY IN SAID OUTER RACE MEMBER AND ON SAID CURVED SHOULDER OF SAID INNER RACE MEMBER, AND CURLING SAID STRAIGHT, ANNULAR UPPER PORTION OF SAID INNER RACE MEMBER AROUND SAID BALL BEARINGS BY MEANS OF A PUNCH MEMBER PROVIDED WITH AN ANNULAR GROOVE DEFINED ALONG ONE SIDE BY AN ANNULAR LIP, SAID GROOVE HAVING A RADIUS APPROXIMATELY EQUAL TO THE RADIUS OF SAID BALL BEARINGS, SAID ANNULAR LIP TRAPPING SAID UPPER PORTION OF SAID INNER RACE MEMBER, WHEREBY THE CURLED UPPER PORTION OF SAID INNER RACE MEMBER CLOSELY CONFORMS TO THE SHAPE OF SAID BALL BEARINGS.
Claim 2
Independent Claim
174 words
THE METHOD OF MAKING A TWO-PART BALL BEARING COMPRISING THE STEPS OF PROVIDING AN OUTER RACE MEMBER HAVING A RACEWAY OF A RADIUS CORRESPONDING TO THE RADII OF SAID BALL BEARINGS, PROVIDING A PARTIALLY FORMED INNER RACE MEMBER HAVING A CURVED SHOULDER OF GREATER RADIUS THAN SAID RADII OF SAID BEARINGS AND A GENERALLY STRAIGHT, ANNULAR UPPER PORTION, DISPOSING A FULL COMPLEMENT OF SAID BALL BEARINGS BETWEEN SAID INNER AND OUTER RACE MEMBERS, SAID BEARING RESTING IN SAID RACEWAY IN SAID OUTER RACE MEMBER AND ON SAID CURVED SHOULDER OF SAID INNER RACE MEMBER, AND CURLING SAID STRAIGHT, ANNULAR UPPER PORTION OF SAID INNER RACE MEMBER AROUND SAID BALL BEARINGS BY MEANS OF A PUNCH MEMBER PROVIDED WITH AN ANNULAR GROOVE DEFINED ALONG ONE SIDE BY AN ANNULAR LIP, SAID GROOVE HAVING A RADIUS APPROXIMATELY EQUAL TO THE RADIUS OF SAID BALL BEARINGS, SAID ANNULAR LIP TRAPPING SAID UPPER PORTION OF SAID INNER RACE MEMBER, WHEREBY THE CURLED UPPER PORTION OF SAID INNER RACE MEMBER CLOSELY CONFORMS TO THE SHAPE OF SAID BALL BEARINGS.
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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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |