Patent US5092148A successfully refreshed from Google Patents.
US5092148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pry-proof computerized mechanical lock
Assignee: MING JUE BUSINESS Ltd Co
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Filing: 1990-08-08
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Granted: 1992-03-03
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Expires: 2010-08-08
Abstract
Abstract A kind of pry-proof computerized mechanical lock which is an integrated lock structure of mechanism and circuit. The front half inside the lock has several plates. The rear half of the lock has a rotor and a fixed seat which supports conductive bars in a special line-up. These conductive bars are biased by respective springs. The rear half of the key is aligned with several plates inside the lock which have portions engageable with openings in the key. When teh key is inserted, it matches accurately the plates through these opening and holes. When the key is turned, the rotor is made to turn at the same time to make the specially-shaped conductive plates to come into contact with the conductive bars. The circuit is then conductive to drive the electromagnetic bolt for opening a door.
Inventors
- 👤 Wang Rong-Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:13
CPC Classifications
H; H01; H01H; H01H27/00; H01H27/06; H01H27/08; G; G07; G07C; G07C9/00; G07C9/00174; G07C9/00658; G07C9/00706; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7051; Y10T70/7062; Y10T70/7068; Y10T70/7073; Y10T70/7079; Y10T70/7441; Y10T70/7751
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
190 words
A pick-proof computerized mechanical lock comprising an elongated tubular body provided with a flanged head mountable against a surface of a hole in a door, a cylindrical lock part rotatably mounted in said body and adjacent to said flanged head, a semi-circular slot defined in a frontal surface of the lock part, a key slot in said frontal surface, a resiliently mounted steel ball supported in a peripheral wall of said lock part, a recess in an inner wall of said flanged head for securing said steel ball, a set of plates positioned in said tubular body adjacent said lock part, a rotor disposed in said tubular body abutting said set of plates, an enlongated fixed seat resiliently supporting in line a number of spaced conductive bars, said fixed seat being mounted abutting one end of said rotor, said set of plates defining a key slot, and an elongated key insertable through said key slots and having a mid-portion provided with apertures alignable with engaging portions on said set of plates and a number of conductive portions adjacent an inner end of said key, and alignable with said conductive bars.
Claim 2
Dependent Claim
190 words
A pick-proof computerized mechanical lock comprising an elongated tubular body provided with a flanged head mountable against a surface of a hole in a door, a cylindrical lock part rotatably mounted in said body and adjacent to said flanged head, a semi-circular slot defined in a frontal surface of the lock part, a key slot in said frontal surface, a resiliently mounted steel ball supported in a peripheral wall of said lock part, a recess in an inner wall of said flanged head for securing said steel ball, a set of plates positioned in said tubular body adjacent said lock part, a rotor disposed in said tubular body abutting said set of plates, an enlongated fixed seat resiliently supporting in line a number of spaced conductive bars, said fixed seat being mounted abutting one end of said rotor, said set of plates defining a key slot, and an elongated key insertable through said key slots and having a mid-portion provided with apertures alignable with engaging portions on said set of plates and a number of conductive portions adjacent an inner end of said key, and alignable with said conductive bars.
Claim 3
Dependent Claim
66 words
A lock according to claim 1, wherein said rotor comprises a pair of spaced circular walls, a flat spacing bar fixedly supporting said circular walls, one longitudinal edge of said bar being flush with said circular walls, a key slot in one of said circular walls being aligned with a surface of said flat spacing bar to permit slidable entry of said key along said surface.
Claim 4
Dependent Claim
12 words
a lock according to claim 1, wherein said plates have different shapes.
Claim 5
Dependent Claim
20 words
A lock according to claim 1, wherein said appertures have different shapes aligning with corresponding shapes on said engaging portions.
Claim 6
Dependent Claim
22 words
A lock according to claim 1, wherein said conductive portions have shapes for aligning with the corresponding arrangement of said conductive bars.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-03 | 1995-09-02 | 1996-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-03 | 1999-09-02 | 2000-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-03 | 2003-09-02 | 2004-03-03 | $7700.00 | Window Closed / Lapsed |