Patent US3423587A successfully refreshed from Google Patents.
Patent US4030071A successfully refreshed from Google Patents.
US4030071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically operated locking mechanism
Assignee: Individual
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Filing: 1976-04-22
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Granted: 1977-06-14
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Expires: 1996-04-22
Abstract
Abstract The present system provides a key device which, when fitted into a key receptacle, connects a certain number of electrical circuit terminals so that certain necessary relay circuits, connected to said terminals, are energized whereby a circuit to energize a solenoid and thereby open a lock is completed through a relay tree provided that certain interrupt relays remain unenergized. If the wrong key device is used, the necessary relay circuits will not be energized and one or more of the interrupt relays may be energized whereby the lock solenoid will not be energized and an alarm may be turned on. The system further provides a power failure means which accepts a mechanical key and when the mechanical key has passed the proper tumblers, the lock solenoid will be energized.
Inventors
- 👤 Herbert J. Barker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:58
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/02; G08B13/06; G07; G07C; G07C9/00; G07C9/00174; G07C9/00658; G07C9/00706
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
283 words
An electrically operated lock system comprising in combination solenoid means having a slideable core, means coupled to said slideable core to be moved in response to said solenoid being energized to provide a locking means, key receptacle means having a plurality of portions formed to effect electrical contacts, first jumper means disposed to connect certain of said portions together, first and second groups of relays each having normally open and normally closed relay points and transfer straps associated therewith, said first and second groups of relays having their relay points and transfer straps interconnected with each other and with certain of said portions so that when said first group of relays is energized and said second group of relays is unenergized, there are formed first and second electrical energy paths interrupted only by connection voids between certain of said receptacles, said first electrical energy path providing a means through which electrical energy passes to energize certain relays of said first group, said second electrical energy path providing a means to energize said solenoid, first and second power means, said first power means connected to certain of said portions and to certain of said relays, said second power means connected to said solenoid through said second electrical energy path, key means having a plurality of portions engaging portions of said key receptacle means, second jumper means connecting certain of said portions of said key means whereby when said key means is inserted into said key receptacle means said connection voids have electrical connections thereacross and accordingly power is applied through said key receptacle means to energize said first group of relays to effect an energization of said solenoid through said second electrical energy path.
Claim 2
Dependent Claim
283 words
An electrically operated lock system comprising in combination solenoid means having a slideable core, means coupled to said slideable core to be moved in response to said solenoid being energized to provide a locking means, key receptacle means having a plurality of portions formed to effect electrical contacts, first jumper means disposed to connect certain of said portions together, first and second groups of relays each having normally open and normally closed relay points and transfer straps associated therewith, said first and second groups of relays having their relay points and transfer straps interconnected with each other and with certain of said portions so that when said first group of relays is energized and said second group of relays is unenergized, there are formed first and second electrical energy paths interrupted only by connection voids between certain of said receptacles, said first electrical energy path providing a means through which electrical energy passes to energize certain relays of said first group, said second electrical energy path providing a means to energize said solenoid, first and second power means, said first power means connected to certain of said portions and to certain of said relays, said second power means connected to said solenoid through said second electrical energy path, key means having a plurality of portions engaging portions of said key receptacle means, second jumper means connecting certain of said portions of said key means whereby when said key means is inserted into said key receptacle means said connection voids have electrical connections thereacross and accordingly power is applied through said key receptacle means to energize said first group of relays to effect an energization of said solenoid through said second electrical energy path.
Claim 3
Dependent Claim
42 words
An electrically operated lock system according to claim 1 in which said key receptacle has a plurality of receptacles disposed therein and providing said electrical contacts, and said key means has a plurality of prongs adapted to be inserted into said receptacles.
Claim 4
Dependent Claim
121 words
An electrically operated lock system according to claim 1 wherein said first and second power sources are derived from a third power source and there is provided a fourth power source which is formed to provide power in the event of a failure of said third power source and there is further included a controllable relay means having a coil, points and transfer straps whose normally closed points and transfer straps are connected between said fourth source of energy and said solenoid and whose relay coil is connected to said third source of energy whereby when said third source of energy is available said relay coil is energized to prevent said fourth source of energy from being applied to said solenoid.
Claim 5
Dependent Claim
90 words
An electrically operated lock system according to claim 3 wherein said controllable relay means further includes a mechanical locking means which is formed to have two transfer straps and two normally open points and formed whereby when said locking means is activated said transfer straps close on said normally open points and wherein each of said normally closed controllable relay points is connected to an associated transfer strap so that when said mechanical lock is activated a circuit will be completed to said solenoid through said last mentioned transfer straps.
Claim 6
Dependent Claim
70 words
An electrically operated lock system according to claim 1 wherein certain of said receptacles are interconnected by said first jumper means and are connected to provide an energization path to said second group of relays whereby if said key means has incorrectly located second jumpers energy can be supplied through said interconnected receptacles to energize said second group of relays and thereby interrupt said first and second electrical energy paths.
Claim 7
Dependent Claim
39 words
An electrically operated lock system according to claim 5 wherein there is further included an alarm means connected to said second group of relays whereby if said second group of relays is energized said alarm means will be energized.
Claim 8
Dependent Claim
30 words
An electrically operated lock system according to claim 1 wherein said solenoid is spring-loaded so that when said solenoid is not energized said bolt will be in a locking position.
Claim 9
Dependent Claim
60 words
An electrically operated lock system according to claim 1 wherein said first and second jumper means can be readily moved to respectively connect other receptacles and prongs and wherein the connections of said first power source and said relays to said receptacle can be readily changed to provide a new combination to enable said key means to energize said solenoid.
Claim 10
Dependent Claim
71 words
An electrically operated lock system according to claim 1 wherein said key means must provide at least a predetermined number of jumper connections to fulfill said predetermined number of positive conditions for providing said second electrical energy path and wherein said key receptacle means must provide at least a different predetermined number of jumper connections to fulfull said different predetermined number of negative conditions for providing said second electrical energy path.
Claim 11
Dependent Claim
39 words
An electrically operated lock system according to claim 1 wherein said relays of said first group are energized serially with each succeeding energized relay depending upon the extension of said first electrical energy path to effect the next energization.
Claim 12
Dependent Claim
33 words
An electrically operated lock system according to claim 1 wherein said first group of relays has an initiation relay which must be energized first before said first electrical energy path can be effected.
References Cited (Backward Citations)
US3717866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-13 | 1980-12-13 | 1981-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-13 | 1984-12-13 | 1985-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-13 | 1988-12-13 | 1989-06-14 | $7700.00 | Window Closed / Lapsed |