Patent US4059883A successfully refreshed from Google Patents.
US4059883A
Expired / Lapsed
US
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Apparatus for removing an ignition key cylinder
Assignee: Individual
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Filing: 1976-02-25
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Granted: 1977-11-29
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Expires: 1996-02-25
Abstract
Abstract An apparatus for removing an ignition key or lock cylinder containing a shaft. A collet assembly which can grasp an ignition key cylinder or lock cylinder is also mounted on the shaft. An annulus is mounted on the collet assembly for maintaining a secure engagement on the ignition key cylinder and a casing is mounted over the collet assembly shaft and annulus.
Inventors
- 👤 Ray L. Osborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:39
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/02; B25B27/023; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17291; Y10T279/17299; Y10T279/17411; Y10T279/17487; Y10T279/17504; Y10T279/17529; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53848; Y10T29/53857; Y10T29/53861; Y10T29/53878
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
117 words
An apparatus for removing a lock cylinder, comprising; a collet assembly, said collet assembly having a conical base portion having resilient collet fingers, said collet fingers having an inwardly projecting lip, a shaft, said shaft connected to said collet base portion and having an external thread portion, an annulus having an internal thread engaging said external thread portion and having a shoulder, said annulus engaging said collet base portion to thereby bias said collet fingers inwardly, a casing, said casing extending at least partially about said collet assembly, a lever, said lever engaging said shaft, said lever bearing against said casing so that tightening of said lever causes said collet assembly to be drawn into said casing.
Claim 2
Independent Claim
117 words
An apparatus for removing a lock cylinder, comprising; a collet assembly, said collet assembly having a conical base portion having resilient collet fingers, said collet fingers having an inwardly projecting lip, a shaft, said shaft connected to said collet base portion and having an external thread portion, an annulus having an internal thread engaging said external thread portion and having a shoulder, said annulus engaging said collet base portion to thereby bias said collet fingers inwardly, a casing, said casing extending at least partially about said collet assembly, a lever, said lever engaging said shaft, said lever bearing against said casing so that tightening of said lever causes said collet assembly to be drawn into said casing.
Claim 3
Dependent Claim
28 words
An apparatus for removing a lock cylinder according to claim 1, wherein said casing encompasses at least a part of said collet assembly, said shaft and said annulus.
Claim 4
Dependent Claim
21 words
An apparatus for removing a lock cylinder according to claim 1, wherein said collet diameter is larger than said annulus diameter.
Claim 5
Dependent Claim
20 words
An apparatus for removing a lock cylinder according to claim 1, wherein the lock cylinder is an ignition key cylinder.
References Cited (Backward Citations)
US268340A
Cited
US422013A
Cited
US668395A
Cited
US2050005A
Cited
US2438797A
Cited
US3210836A
Cited
US3579796A
Cited
US3972103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-28 | 1981-05-30 | 1981-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-28 | 1985-05-30 | 1985-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-28 | 1989-05-30 | 1989-11-29 | $7700.00 | Window Closed / Lapsed |