GB1438673A - Electronic lock apparatus - Google Patents

Electronic lock apparatus

Info

Publication number
GB1438673A
GB1438673A GB2554373A GB2554373A GB1438673A GB 1438673 A GB1438673 A GB 1438673A GB 2554373 A GB2554373 A GB 2554373A GB 2554373 A GB2554373 A GB 2554373A GB 1438673 A GB1438673 A GB 1438673A
Authority
GB
United Kingdom
Prior art keywords
signal
nand gate
logic
electronic
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2554373A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Whitman J I
Original Assignee
Whitman J I
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US25756272A priority Critical
Application filed by Whitman J I filed Critical Whitman J I
Publication of GB1438673A publication Critical patent/GB1438673A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B49/00Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
    • E05B49/002Keys with mechanical characteristics, e.g. notches, perforations, opaque marks
    • E05B49/004Keys with mechanical characteristics, e.g. notches, perforations, opaque marks actuating mechanical switches
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B49/00Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
    • E05B49/002Keys with mechanical characteristics, e.g. notches, perforations, opaque marks
    • E05B49/006Keys with mechanical characteristics, e.g. notches, perforations, opaque marks actuating opto-electronic devices
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S70/00Locks
    • Y10S70/51Light sensitive control means
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/70Operating mechanism
    • Y10T70/7051Using a powered device [e.g., motor]
    • Y10T70/7062Electrical type [e.g., solenoid]
    • Y10T70/7068Actuated after correct combination recognized [e.g., numerical, alphabetical, or magnet[s] pattern]
    • Y10T70/7073Including use of a key
    • Y10T70/7079Key rotated [e.g., Eurocylinder]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/70Operating mechanism
    • Y10T70/7441Key
    • Y10T70/7486Single key
    • Y10T70/7508Tumbler type
    • Y10T70/7559Cylinder type
    • Y10T70/7655Cylinder attaching or mounting means

Abstract

1438673 Electronic locking apparatus J I WHITMAN 29 May 1973 [30 May 1972] 25543/73 Heading E2A An electronic locking apparatus comprises a key operable means 10, first code forming means for generating a first coded electronic signal in response to operation of the key operable means, second code forming means connected to the first code forming means for generating a second independently determinable coded electronic signal in response only to the generation of the first electronic coded signal, electronic means responsive to the second coded signal to decode the second coded signal and generate an initiating signal and a locking means deactivatable by the initiating signal. As shown the key operable means 10 comprises a rotatable cylinder lock each spring loaded tumbler of which is divided into four parts so as to provide combination of positions of the tumblers in which the cylinder 12 is rotatable. In a predetermined one of these combinations each of the tumblers at the interface of the cylinder 12 and housing 38 either make an electrical circuit or maintain an electrical circuit open. The made electrical circuit(s) give a logic "1" output to a NAND gate and an inverter is placed in the open circuit(s) to also give a logic "1" output to the NAND gate so as to produce the first coded signal (Fig. 4A not shown). Each circuit comprises a conducting sleeve in which a tumbler moves set in an insulating portion of the housing 38. An insulating sleeve 44 is interposed between each sleeve and the interface between the housings 38 and the cylinder 12. A circuit is completed through adjacent segments of a tumbler and the cylinder. For this purpose the segments of the tumbler required for the switch are either of metal or plastics material with a conductive coating. The second code forming means comprises a series of NAND gate to one input of each of which the output from the first mentioned NAND gate is communicated. Depending upon the state of the other input of each of the gates of the series a logic "I" or "O" signal is given. These logic "I" and "O" signals form the second coded signal. The "O" signals are inverted so that logic "I" signals are fed to a further NAND gate comprising the decoding electronic means (Fig. 4B, not shown). Through a further series of NAND gates the correct logic signal at the further NAND gate operates a solenoid which deactivates the locking means. A timing circuit (Fig. 4A, not shown) is provided for allowing the locking apparatus to be unlocked during a predetermined time only from insertion of the key into the key operable means. This comprises a set of switches in series formed by a flange 140, 142, 144, 146, 148 on each tumbler and a corresponding portion of a printed circuit 138, the switches normally being closed but at least one being opened on introduction of the key to activate the timing circuit. The output from the timing circuit forms an input to the first mentioned NAND gate. A signal from the cylinder lock is also provided in the decoding portion of the circuit. In a modification the first coded signal may be formed from a set of logic outputs from "photoelectric" devices, one photo electric device being associated with each tumbler (Fig. 5, not shown). The electronic locking apparatus is disclosed as a security lock on a motor vehicle.
GB2554373A 1972-05-30 1973-05-29 Electronic lock apparatus Expired GB1438673A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US25756272A true 1972-05-30 1972-05-30

Publications (1)

Publication Number Publication Date
GB1438673A true GB1438673A (en) 1976-06-09

Family

ID=22976784

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2554373A Expired GB1438673A (en) 1972-05-30 1973-05-29 Electronic lock apparatus

Country Status (7)

Country Link
US (1) US3764859A (en)
JP (1) JPS4962300A (en)
DE (1) DE2327363C3 (en)
FR (1) FR2187001A5 (en)
GB (1) GB1438673A (en)
IT (1) IT986379B (en)
SE (1) SE390831B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2186320A (en) * 1986-02-05 1987-08-12 Bauer Kaba Ag Cylinder locks

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967166A (en) * 1973-04-25 1976-06-29 Wei Ching Yeu Electronic lock
JPS5382397U (en) * 1976-12-09 1978-07-07
JPS54103198A (en) * 1978-01-30 1979-08-14 Toshiya Hiratsuka Key discriminating device
US4209709A (en) * 1978-09-05 1980-06-24 BBJ Laboratories Anti-theft ignition system
US4355830A (en) * 1980-02-25 1982-10-26 Cni Incorporated Electrical locking mechanism
US4390758A (en) * 1981-01-16 1983-06-28 Hendrickson Max S Key-actuated electrical lock
JPS6017913B2 (en) * 1981-04-30 1985-05-07 Nitsusan Jidosha Kk
JPS6019397B2 (en) * 1981-04-30 1985-05-16 Nitsusan Jidosha Kk
JPS5932633B2 (en) * 1981-04-30 1984-08-09 Nitsusan Jidosha Kk
JPH0150613B2 (en) * 1981-08-26 1989-10-31 Nitsusan Jidosha Kk
JPS6019395B2 (en) * 1981-10-02 1985-05-16 Nitsusan Jidosha Kk
JPS6047432B2 (en) * 1981-10-02 1985-10-22 Nitsusan Jidosha Kk
JPS6335043B2 (en) * 1982-01-28 1988-07-13 Tokai Rika Co Ltd
AT373336B (en) * 1982-04-08 1984-01-10 Grundmann Gmbh Geb Cylinder lock
JPS61196080A (en) * 1985-02-21 1986-08-30 Nissan Motor Wireless user discrimination apparatus
US4631940A (en) * 1985-03-29 1986-12-30 Sargent & Greenleaf, Inc. Digital readout combination lock dial assembly
JPS6238035A (en) * 1985-08-12 1987-02-19 Nissan Motor Co Ltd Thin plate type portable device
JPS6278379A (en) * 1985-09-30 1987-04-10 Nissan Motor Locking and unlocking control apparatus for vehicle
JPH0625503B2 (en) * 1986-06-20 1994-04-06 日産自動車株式会社 Unlock control device
US4901545A (en) * 1987-12-28 1990-02-20 Rising Star Technologies (A Partnership) Self-contained electromechanical locking device
DE4220911A1 (en) * 1992-06-25 1994-01-05 Akram Memar Tehrani Mechanical code protection for vehicle central locking system - has key with coded pattern on shank to preset array of security switches
DE19520211A1 (en) * 1994-06-03 1996-02-01 Strattec Security Corp Electronic locking arrangement for a lock system
US5743380A (en) * 1996-12-02 1998-04-28 Augat Inc. Rotary door lock switch assembly and method for manufacturing same
US6958551B2 (en) * 2002-06-25 2005-10-25 Strattec Security Corporation Vehicle coded ignition lock using a magnetic sensor
US7941934B2 (en) * 2008-09-30 2011-05-17 Honeywell International Inc. Method for identifying keys for controlling locks
US7958647B2 (en) * 2008-12-04 2011-06-14 Honeywell International Inc. Lock-bumping and lock-picking detection
US10167655B2 (en) * 2017-01-25 2019-01-01 International Business Machines Corporation Lock bypass detection

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2905926A (en) * 1954-01-28 1959-09-22 Douglas G Aid Automatic charging system
US3639906A (en) * 1968-10-14 1972-02-01 Peter R Tritsch Key identification system having key code control
US3610943A (en) * 1970-05-11 1971-10-05 Trevor O Jones Vehicle operation inhibitor control system
US3641396A (en) * 1970-05-21 1972-02-08 Alarm Lock Co Inc Electrically actuated switch combinated operating device for permitting operation of latches and other mechanisms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2186320A (en) * 1986-02-05 1987-08-12 Bauer Kaba Ag Cylinder locks

Also Published As

Publication number Publication date
JPS4962300A (en) 1974-06-17
US3764859A (en) 1973-10-09
FR2187001A5 (en) 1974-01-11
DE2327363B2 (en) 1980-02-28
DE2327363C3 (en) 1980-10-09
SE390831B (en) 1977-01-24
IT986379B (en) 1975-01-30
DE2327363A1 (en) 1973-12-13

Similar Documents

Publication Publication Date Title
US3691396A (en) Electronic combination door and ignition lock
May Imperial democracy: The emergence of America as a great power
US3944976A (en) Electronic security apparatus
US4206491A (en) Entry system
US3784839A (en) Anti-theft apparatus including turnover mode of operation
US4090175A (en) Opto-electronic lock device
ES418598A1 (en) Motor vehicle electronic security alarm system using sequence control arming
CA959884A (en) Key-controlled door lock
CA1043443A (en) Inductively coupled lock
AT114773T (en) Operated by magnetic key lock and module therefor.
IT944563B (en) Security lock magnetoin duction with groups of magnets in the lock and key
DE3473136D1 (en) Steering lock arrangement
ES8402668A1 (en) Improvements in code remote control systems.
EP0243586A3 (en) Electromechanical locking device with an individual key
CA947339A (en) Key-controlled door lock
AU2690771A (en) Keys for electronic security apparatus
KR840004963A (en) Data Entry Keyboard Device
US3787812A (en) Pick-proof lock
GB1404012A (en) Electronic checking systems
ES2010274A6 (en) Electronic locking device
ES8605070A1 (en) Electronic locking device with key and lock parts interacting by means of electric pulses.
ES378709A1 (en) Electronic antitheft device using an electronic safety lock
CA1004740A (en) Door lock, power and alarm control circuit for automotive vehicles and the like
DE1290569B (en) Mechanically operable key for a keypad transmitter with a magnetically responsive set of contacts, in particular for remote Writing Instruments
IT1199068B (en) Latch bolt and control, operated by magnetic means, and, in particular ferromagnetic lock-type barrel and corresponding key

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee