Patent US3275744A successfully refreshed from Google Patents.
US3148922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plugging device
Assignee: FMC Corp
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Filing: 1960-01-12
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Granted: 1964-09-15
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Expires: 1980-01-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Henry W Roessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:34
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/0804; F16L27/0808; F16L27/0824; F16L27/0828; F16C; F16C43/00; F16C43/04; F16C43/06; F16C2240/00; F16C2240/40; F16C2240/70; F16C2240/80; F16C2240/82; F16C2240/84; F16C2361/00; F16C33/00; F16C33/30; F16C33/66; F16C33/6603; F16C33/6622; Y; Y10; Y10S; Y10S285/00; Y10S285/906
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
135 words
A SWIVEL JOINT COMPRISING AN INNER RIGID CYLINDRICAL MEMBER, AN OUTER RIGID CYLINDRICAL MEMBER IN CONCENTRIC RELATIONSHIP THEREWITH, SAID MEMBERS HAVING REGISTERING ANNULAR BALL RACEWAYS THEREIN COOPERATING TO DEFINE A BALL RACE BETWEEN SAID CYLINDRICAL MEMBERS, ONE OF SAID CYLINDRICAL MEMBERS HAVING A CYLINDRICAL ACCESS PASSAGE LEADING RADIALLY THROUGH A WALL THEREOF INTO THE BALL RACE, A PLURALITY OF RELATIVELY HARD AND RIGID BALLS WITHIN SAID BALL RACE FOR ROTATABLY INTERCONNECTING SAID CYLINDRICAL MEMBERS, AND MEANS FOR PLUGGING THE ACCESS PASSAGE TO RETAIN THE BALLS IN THE BALL RACE COMPRISING A PLUG RECEIVED WITHIN SAID PASSAGE AND BEING OF A READILY YIELDABLE MATERIAL, AND MEANS SECURING THE PLUG WITHIN THE ACCESS PASSAGE WITH ONE FACE OF SAID PLUG PROJECTING INTO SAID BALL RACE IN POSITION TO SUCCESSIVELY RESILIENTLY ENGAGE THE BALLS IN THE BALL RACE.
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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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |