Patent US3071398A successfully refreshed from Google Patents.
US3071398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking ring
Assignee: Skinner Engine Co
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Filing: 1960-05-27
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Granted: 1963-01-01
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Expires: 1980-05-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Henning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:41
CPC Classifications
B; B01; B01F; B01F35/00; B01F35/60; F; F16; F16B; F16B2200/00; F16B2200/69; F16B2200/73; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/205; Y10T292/212; Y10T292/214
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A LOCKING DEVICE COMPRISING TWO SPREADABLE MEMBERS HAVING A HOLE FORMED HALF IN ONE SAID MEMBER AND HALF IN THE OTHER SAID MEMBER, THREADS IN SAID HOLE, AND A TAPERED PLUG RECEIVED IN SAID THREADS TO BE DRIVEN INWARDLY OR OUTWARDLY OF SAID THREADED HOLE TO SPREAD AND CONTRACT SAID MEMBERS, SAID THREADS BEING REMOVED ADJACENT EACH SIDE OF SAID HOLE ADJACENT THE EDGES OF SAID MEMBERS, LEAVING TWO CRESCENT SHAPED SURFACES AT THE LOWER END OF SAID HOLE.
Claim 2
Dependent Claim
79 words
A LOCKING DEVICE COMPRISING TWO SPREADABLE MEMBERS HAVING A HOLE FORMED HALF IN ONE SAID MEMBER AND HALF IN THE OTHER SAID MEMBER, THREADS IN SAID HOLE, AND A TAPERED PLUG RECEIVED IN SAID THREADS TO BE DRIVEN INWARDLY OR OUTWARDLY OF SAID THREADED HOLE TO SPREAD AND CONTRACT SAID MEMBERS, SAID THREADS BEING REMOVED ADJACENT EACH SIDE OF SAID HOLE ADJACENT THE EDGES OF SAID MEMBERS, LEAVING TWO CRESCENT SHAPED SURFACES AT THE LOWER END OF SAID HOLE.
References Cited (Backward Citations)
US1075849A
Cited
US2491128A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |