US4998952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Key for electronic and mechanical locks
Assignee: Assa Abloy High Security Group Inc
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Filing: 1990-03-02
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Granted: 1991-03-12
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Expires: 2010-03-02
Abstract
Abstract A hybrid key for operating both electronic and mechanical locks has the electrical components in a separate and removable housing which is normally secured to the bow portion of the key blade but may be removed, the disclosed means for securing the electrical housing to the key bow is via a configuration including grooves in the housing, a hook portion on the key bow, and holes through the housing and bow at a single point for rivet securing means.
Inventors
- 👤 Richard G. Hyatt, Jr.
- 👤 Charles E. Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:50
CPC Classifications
E; E05; E05B; E05B19/00; G; G07; G07C; G07C9/00; G07C9/00174; G07C9/00944; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/778; Y10T70/7791; Y10T70/7802; Y10T70/7876
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
99 words
A key for both electronic and mechanical locks, the key having a key bow, a key blade integral with and extending from the key bow, the key blade having a capability of being configured to operate a mechanical lock, and an electronic circuit means carried by the key bow for operating an electronically activated lock, with improvements comprising; a completely separate and removable housing containing the electronic circuit means, means for securing such housing to the key bow to allow removal of such housing to separate the housing and thereby allowing such circuit to be placed on another key.
Claim 2
Dependent Claim
99 words
A key for both electronic and mechanical locks, the key having a key bow, a key blade integral with and extending from the key bow, the key blade having a capability of being configured to operate a mechanical lock, and an electronic circuit means carried by the key bow for operating an electronically activated lock, with improvements comprising; a completely separate and removable housing containing the electronic circuit means, means for securing such housing to the key bow to allow removal of such housing to separate the housing and thereby allowing such circuit to be placed on another key.
Claim 3
Dependent Claim
17 words
A key as defined in claim 1 wherein the means for securing is a single rivet means.
Claim 4
Dependent Claim
24 words
A key as in claim 2 wherein there is a hole through the housing and the key bow for the single rivet securing means.
Claim 5
Dependent Claim
24 words
A key as in claim 3 wherein the housing has side flanges to fit over a portion of the sides of the key bow.
Claim 6
Dependent Claim
140 words
A key for both electronic and mechanical locks, the key having a key bow, a key blade integral with and extending from the key bow, the key blade having a capability of being configured to operate a mechanical lock, and an electronic circuit means carried by the key bow for operating an electronically activated lock, with improvement comprising: a separate and removable housing containing the electronic circuit means, the housing having side flanges to fit over a portion of the sides of the key bow, a means for securing the housing to the key bow to allow removal of such housing to separate the housing and thereby allowing such circuit to be placed on another key, and wherein the key bow has a hook portion to hook into the housing and assist in retaining the housing on the key bow.
Claim 7
Dependent Claim
140 words
A key for both electronic and mechanical locks, the key having a key bow, a key blade integral with and extending from the key bow, the key blade having a capability of being configured to operate a mechanical lock, and an electronic circuit means carried by the key bow for operating an electronically activated lock, with improvement comprising: a separate and removable housing containing the electronic circuit means, the housing having side flanges to fit over a portion of the sides of the key bow, a means for securing the housing to the key bow to allow removal of such housing to separate the housing and thereby allowing such circuit to be placed on another key, and wherein the key bow has a hook portion to hook into the housing and assist in retaining the housing on the key bow.
Claim 8
Dependent Claim
35 words
A key as defined in claim 5 wherein the housing has contacts at one end to operate contacts of an electronic lock when the key blade is inserted into a portion of an electrical lock.
Claim 9
Dependent Claim
117 words
A hybrid key for operating both electronic and mechanical locks, the key comprising; a key bow frame portion, an extending key blade portion integral with and extending from the key bow frame portion, the blade portion being capable of fitting into a keyway of a mechanical lock and into a guide passage keyway for an electronic lock and being capable of being configured to operate the mechanical lock, a housing, an electronic memory logic circuit means carried within the housing, and hook and single rivet means cooperating between the housing and the bow frame for removably securing the housing to the key bow frame and to allow the housing to be removed from the key bow frame.
Claim 10
Dependent Claim
117 words
A hybrid key for operating both electronic and mechanical locks, the key comprising; a key bow frame portion, an extending key blade portion integral with and extending from the key bow frame portion, the blade portion being capable of fitting into a keyway of a mechanical lock and into a guide passage keyway for an electronic lock and being capable of being configured to operate the mechanical lock, a housing, an electronic memory logic circuit means carried within the housing, and hook and single rivet means cooperating between the housing and the bow frame for removably securing the housing to the key bow frame and to allow the housing to be removed from the key bow frame.
References Cited (Backward Citations)
US3579183A
Cited
US3660624A
Cited
US4562712A
Cited
GB2155988A
Cited
US4663952A
Cited
US4726205A
Cited
US4858453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-03-11 | 1994-09-10 | 1995-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-11 | 1998-09-10 | 1999-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-11 | 2002-09-10 | 2003-03-12 | $7700.00 | Window Closed / Lapsed |