Patent US4090089A successfully refreshed from Google Patents.
US4090089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sequential coded computerized anti-theft lock
Assignee: Individual
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Filing: 1976-04-14
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Granted: 1978-05-16
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Expires: 1996-04-14
Abstract
Abstract An electrical apparatus for installation particularly in an automotive vehicle, and which serves as an anti-theft device, and wherein a proper code in a proper order must be first depressed on a switch plate by the vehicle operator in order that the vehicle engine may be started, while at a same time a burglar alarm may be disabled on the automobile.
Inventors
- 👤 Philip P. Morello
- 👤 David M. Seroski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:02
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/20; B60R25/24; B60R25/01; B60R25/04; B60R25/23; G; G07; G07C; G07C9/00; G07C9/00174; G07C9/00658; G07C9/00674; G07C9/0069
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
221 words
A security device for enabling apparatus which is being secured, said security device being operable by inputting to it a predetermined sequence plural digit signal, comprising: a. a switch plate containing a first plurality of manually depressable switch buttons; b. circuit means comprising a second plurality of switch elements for producing an output signal when said switch elements are switched in a predetermined sequence; c. connecting means for connecting respective ones of said switch buttons to respective ones of said switch elements; d. said circuit means further comprising a plural stage parallel in parallel out static shift register and shift circuit means for shifting signals successively from the output of one of the stages to the input of the next one of said stages only when said switch elements have been switched in said predetermined sequence; e. output circuit means connected to an output terminal of the last stage of said register, for generating an output signal when said switch elements have been switched in said predetermined sequence; f. reset means for resetting said register whenever one of said switch elements is switched out of said predetermined sequence; and g. enabling circuit means adapted to be connected to said secured apparatus, having an input connected to said output circuit means, for enabling said secured apparatus when said output signal is generated.
Claim 2
Dependent Claim
221 words
A security device for enabling apparatus which is being secured, said security device being operable by inputting to it a predetermined sequence plural digit signal, comprising: a. a switch plate containing a first plurality of manually depressable switch buttons; b. circuit means comprising a second plurality of switch elements for producing an output signal when said switch elements are switched in a predetermined sequence; c. connecting means for connecting respective ones of said switch buttons to respective ones of said switch elements; d. said circuit means further comprising a plural stage parallel in parallel out static shift register and shift circuit means for shifting signals successively from the output of one of the stages to the input of the next one of said stages only when said switch elements have been switched in said predetermined sequence; e. output circuit means connected to an output terminal of the last stage of said register, for generating an output signal when said switch elements have been switched in said predetermined sequence; f. reset means for resetting said register whenever one of said switch elements is switched out of said predetermined sequence; and g. enabling circuit means adapted to be connected to said secured apparatus, having an input connected to said output circuit means, for enabling said secured apparatus when said output signal is generated.
Claim 3
Dependent Claim
26 words
The device as described in claim 1, wherein said switch plate comprises at least 8 pushbuttons, and said circuit means comprises less than 8 switch elements.
Claim 4
Dependent Claim
24 words
The device as described in claim 1, wherein said switch plate comprises at least 10 pushbuttons, and said circuit means comprises 4 switch elements.
Claim 5
Dependent Claim
42 words
The device as described in claim 1, wherein said circuit means comprises gate means connected to the outputs of each of said register stages but said last stage, for gating the output of each stage to the input of the next stage.
Claim 6
Dependent Claim
40 words
The device as described in claim 4, wherein each of said gate means comprises an and gate having a first input connected to the output of the corresponding stage and a second input connected to one of said switch elements.
Claim 7
Dependent Claim
22 words
The device as described in claim 5, wherein said reset means comprises some of said switch elements connected to reset said register.
Claim 8
Dependent Claim
25 words
The device as described in claim 1, wherein said connecting means comprises a changeable code key and socket, whereby said predetermined sequence can be changed.
Claim 9
Dependent Claim
23 words
The device as described in claim 1, comprising bypass means for changing said device to enable said apparatus without inputting said predetermined signal.
Claim 10
Dependent Claim
52 words
The device as described in claim 1, wherein said circuit means comprises a clock pulse circuit for inputting a clock signal to said register upon the switching of one of said switch elements, whereby all data at each parallel input terminal of said register is shifted to the corresponding parallel output terminal.
Claim 11
Dependent Claim
27 words
The device as described in claim 1, wherein said enabling circuit means is connected to said circuit means so as to control energization of said 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) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |