US3600637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric lock
Assignee: Individual
•
Filing: 1968-09-10
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Granted: 1971-08-17
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Expires: 1988-09-10
Abstract
Abstract An electric lock operating an actuator in response to a sequence of electric signals supplied at predetermined points in an operating cycle. A switching device serves to direct signals supplied at the predetermined points in the operating cycle to a first relay device and to direct signals supplied at any other point to a second relay device. If the first relay device receives signals in accordance with the predetermined sequence, it operates in steps-each corresponding to one signal-to close or otherwise operate a control circuit of the actuator. If the second relay device receives a signal at any point in the operating cycle, it prevents the first relay device from closing or operating the control circuit for the remainder of the operating cycle. A presettable signal transmitter is provided which, after preselected pushbuttons have been depressed, can be set in operation to automatically supply signals at points in the operating cycle corresponding to the preselected pushbuttons.
Inventors
- 👤 Helge Bertil Bergkvist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:08
CPC Classifications
G; G07; G07C; G07C9/00; G07C9/00174; G07C9/00658; G07C9/00674; G07C9/00698; G07C9/00666
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
211 words
A device for controlling the energization of a utilization circuit in response only to the supply of a sequence of signals in accordance with a preselected multicharacter code, said device comprising, in combination, manually operated signal supplying means operable to supply a discretionary sequence of signals; first relay means operable during the course of an operating cycle, to establish, in a number of steps correlated to the number of signals of said multicharacter code, a control circuit for the utilization circuit; second relay means operable, when transferred during the course of said operating cycle, to prevent completion of said control circuit during the remainder of said operating cycle; and switching means connected to said signal supplying means and to said first and second relay means, and operable, in accordance with said sequence of signals supplied by said manually operated signal supplying means, to direct each signal of the sequence which is supplied in accordance with said preselected multicharacter code to said first relay means, and to direct any signals of said sequence, supplied by said manually operated signal supplying means, which is not in accordance with said preselected multicharacter code to said second relay means to transfer the latter to prevent completion of said control circuit by said first relay means.
Claim 2
Independent Claim
211 words
A device for controlling the energization of a utilization circuit in response only to the supply of a sequence of signals in accordance with a preselected multicharacter code, said device comprising, in combination, manually operated signal supplying means operable to supply a discretionary sequence of signals; first relay means operable during the course of an operating cycle, to establish, in a number of steps correlated to the number of signals of said multicharacter code, a control circuit for the utilization circuit; second relay means operable, when transferred during the course of said operating cycle, to prevent completion of said control circuit during the remainder of said operating cycle; and switching means connected to said signal supplying means and to said first and second relay means, and operable, in accordance with said sequence of signals supplied by said manually operated signal supplying means, to direct each signal of the sequence which is supplied in accordance with said preselected multicharacter code to said first relay means, and to direct any signals of said sequence, supplied by said manually operated signal supplying means, which is not in accordance with said preselected multicharacter code to said second relay means to transfer the latter to prevent completion of said control circuit by said first relay means.
Claim 3
Dependent Claim
45 words
A device as set forth in claim 1 wherein said first relay means includes a latching relay which is operable by a signal supplied by said signal supplying means to close make contacts arranged to pass a subsequent signal supplied by said signal supplying means.
Claim 4
Dependent Claim
63 words
A device as set forth in claim 1 wherein said first relay means comprises a series of latching relays having make contacts, each said latching relay being operable by a signal supplied by Said signal supplying means, said make contacts of each relay of said series except the last one being connected in series with the operating circuit of the next succeeding relay.
Claim 5
Dependent Claim
49 words
A device as set forth in claim 3 wherein said series of latching relays consists of one latching relay for each signal of said preselected multicharacter code except the last one, said make contacts of said last relay of said series being connected in series with said control circuit.
Claim 6
Dependent Claim
36 words
A device as set forth in claim 3 wherein said second relay means comprises a relay having break contacts arranged when opened to cause unlatching of any previously latched relays of said series of latching relays.
Claim 7
Dependent Claim
95 words
A device as set forth in claim 3 wherein said switching means comprises a stationary contact member for each signal of said preselected multicharacter code, said contact members being connected to said first relay means, movable actuating means adapted to act on each said contact member during the course of said operating cycle to connect said first relay means with said signal supplying means, and normally conducting controlled-conduction means connected to said second relay means and operable by signals supplied in accordance with said preselected multicharacter code to prevent operation of said second relay means.
Claim 8
Dependent Claim
79 words
A device as set forth in claim 1 wherein said switching device includes an additional contact member adapted to be momentarily acted on by said actuating member at the termination of said operating cycle to connect said second relay means to a voltage source to cause operation of said second relay means, said second relay means comprising a relay having break contacts arranged when opened to cause unlatching of any previously latched relay of said series of latching relays.
Claim 9
Dependent Claim
74 words
A device as set forth in claim 1 wherein said actuating means of said switching means includes at least two actuating members which are movable in unison and arranged to act on different ones of said contact members, and wherein said signal supplying means includes as many selectively operable signal supplying members as there are actuating members of said actuating means, said signal supplying members being associated with respective ones of said actuating members.
Claim 10
Dependent Claim
56 words
A device as set forth in claim 1 wherein said switching means includes normally conducting controlled-conduction means connected to said second relay means and having control means operable by signals supplied in accordance with said preselected multicharacter code to prevent operation of said second relay means by causing said controlled-conduction means to assume a nonconducting condition.
Claim 11
Dependent Claim
51 words
A device as set forth in claim 9 wherein said control means comprises bias means normally maintaining said controlled-conduction means in a conducting condition, said bias means being connected to receive only signals supplied in accordance with said preselected multicharacter code to cause said controlled-conduction means to assume a nonconducting condition.
Claim 12
Dependent Claim
27 words
A device as set forth in claim 1 wherein said second relay means comprises a latching relay having break contacts connected in series with said control circuit.
Claim 13
Dependent Claim
69 words
A device as set forth in claim 1 wherein said signal supplying means comprises a voltage source, a plurality of spaced stationary contact members, an actuating member movable to act on said contact members sequentially and in synchronism with the operation of said switching means, said contact members being selectively presettable to connect said voltage source with said switching means when they are acted on by said actuating member.
Claim 14
Dependent Claim
78 words
A device as set forth in claim 1, wherein said signal supplying means comprises a voltage source, a plurality of spaced stationary contact members, a capacitor between each of said contact members and one pole of a DC voltage source, means for selectively charging said capacitors, and an actuating member which is movable to act on said contact members sequentialLy during the course of the operating cycle to effect discharging of any charged capacitor through output circuit means.
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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |