US3599454A - Key reader and identifier system - Google Patents

Key reader and identifier system Download PDF

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Publication number
US3599454A
US3599454A US3599454DA US3599454A US 3599454 A US3599454 A US 3599454A US 3599454D A US3599454D A US 3599454DA US 3599454 A US3599454 A US 3599454A
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United States
Prior art keywords
key
electric
lock
closure
mechanical lock
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 - Lifetime
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English (en)
Inventor
John A Hill
Charles A Bauer
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.)
Sargent Manufacturing Co
Original Assignee
Sargent and Co
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
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Application granted granted Critical
Publication of US3599454A publication Critical patent/US3599454A/en
Assigned to KIDDE, INC. reassignment KIDDE, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE APRIL 14, 1980. Assignors: WALTER KIDDE & COMPANY, INC.
Assigned to SARGENT MANUFACTURING COMPANY, A CORP. OF DE. reassignment SARGENT MANUFACTURING COMPANY, A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: KIDDE, INC., A CORP. OF DE.
Assigned to KIDDE, INC. reassignment KIDDE, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE APR. 16, 1980 Assignors: WALTER KIDDE & COMPANY, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B49/00—Electric permutation locks; Circuits therefor ; Mechanical aspects of electronic locks; Mechanical keys therefor
    • E05B49/002—Keys with mechanical characteristics, e.g. notches, perforations, opaque marks
    • E05B49/004—Keys with mechanical characteristics, e.g. notches, perforations, opaque marks actuating mechanical switches
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • E05B35/001—Locks for use with special keys or a plurality of keys ; keys therefor with key identifying function
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/27—Individual registration on entry or exit involving the use of a pass with central registration
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5093—For closures
    • Y10T70/5155—Door
    • Y10T70/5199—Swinging door
    • Y10T70/5246—Dead bolts
    • Y10T70/5296—Single
    • Y10T70/5301—Sliding and swinging
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/60—Systems
    • Y10T70/625—Operation and control
    • Y10T70/675—Serially operable
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7051—Using a powered device [e.g., motor]
    • Y10T70/7062—Electrical type [e.g., solenoid]
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7051—Using a powered device [e.g., motor]
    • Y10T70/7062—Electrical type [e.g., solenoid]
    • Y10T70/713—Dogging manual operator
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/80—Parts, attachments, accessories and adjuncts
    • Y10T70/8027—Condition indicators
    • Y10T70/8054—With recorder
    • Y10T70/8081—Electric
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/80—Parts, attachments, accessories and adjuncts
    • Y10T70/8432—For key-operated mechanism
    • Y10T70/8811—Key identification

Definitions

  • a strictly mechanical key is used both as an information-carrying medium and as a device for mechanically unlocking a lock in a conventional manner.
  • the information stored on the mechanical key is read at an independent station prior to use in the mechanical lock.
  • the intelligence imparted to the station is of significance in permitting or not permitting the functioning of the lock.
  • Ingress is limited to a few specially manned locations.
  • guards are present at such openings.
  • Individuals having permission to enter the proscribed area are usually given passes of some kind. When the pass is presented to the guard at the manned opening and the guard is satisfied thatthe individual carrying the pass has a right thereto, the guard will permit access. It will be quickly appreciated that the cost for maintaining a series of. openings in an installation can be and is enormous. Further, such costs are multiplied when the installation is operated on a 24-hour basis as is often the case resulting in a plurality of guard shifts.
  • a plastic laminated card of the type used in the fabrication of passes has been used.
  • the card besides having the usual indicia thereon such as photograph and thumbprint, etc., also has additional coded information in the form of, for instance, suitably positioned electric conducting elements of magnetic ink indicia.
  • reading means is employed to read the information position on the card.
  • a door associated with the means is automatically unlocked thereby permitting the card holder to obtain access to the proscribed area. If the setup includes a door which must also be unlocked by mechanical means, then the card holder must be in possession of two instrumentalities, that is, a-key and indicia-carrying card.
  • the present invention seeks to obviate the need of two instrumentalities by combining in one element the feature of carrying definable information and being adapted to mechanically unlock a lock under the aegis of the proper prior-imparted intelligence. Additionally, the system contemplated within the purview of the instant invention includes means to positively identify the specific element employed, means to identify the station at which the element is employed, and means to identify the time when the element is utilized. All of such information is recorded for future review. Additional features and advantages will become apparent from a detailed consideration of the invention as it is presented below.
  • Preferred'in the instant invention is a key ofthe type disclosed in US. Pat. No. 3,303,677. It will be seen therefrom that a key is disclosed having spaced drilled cone pit-s positioned longitudinally on one or more surfaces of a key. By having six sides the key may have the pits along any one or all of the sides. As stated in, said patent the pins of a tumbler lock may be located in any one of a plurality of radial directions with the key as the axis of the tumbler.
  • the pins which protrude into the pits operate electric switches so that they are in the off or on" position as desired.
  • the switches are turned on so that those pins when deployed in the pits are on, i.e., in their normal position. Those pins when riding on the land portions of the key are in an off position.
  • the information from the key is fed as the input to a computer which samples the information for storage purposes and for comparison with the already programmed information.
  • the computer transmits the information to a mechanically operable lock to permit its operation by the said key which is transferred from the sensing or reading station to the mechanical lock.
  • the release mechanism in association with the mechanical lock may take the form of a solenoid which removes a stop means normally positioned to prevent a cam from operating, of a type frequently found in a tumbler cylinder lock.
  • the lock may be mounted in the door in the usual manner.
  • the lock may be mounted on or near the jamb of a door with the bolt keeper in the door itself.
  • the solenoid need not even be directly associated with the mechanical lock but may be operated to retract an independently operated bolt either moving it from an appropriate keeper in the doorjamb or from the door itself so that the lock is again not mounted on the door.
  • the solenoid could be adapted to remove an obstruction in the keyway, thereby permitting entrance of the key.
  • the obstruction may take the form of a shield to the opening of the keyway or may take the form of means restraining one or more pins in the cylinder lock from operating.
  • FIG. 1 is a front view of the key identifier and lock as seen upon approach.
  • FIG. 2 is a front view of another embodiment.
  • FIG. 3 is a front elevation of a fragmentary portion of a door showing a lock.
  • FIG. 4 is a side elevation of a fragmentary portion of a door with a portion broken away.
  • FIG. Sis a view taken along lines 5-5 of FIG. 4.
  • FIG. 6 is a further fragmentary view of FIG. 4 with the armature of a solenoid withdrawn.
  • FIG. 7 is another embodiment of the arrangement shown by FIGS. 3 to 6.
  • FIG. 8 is a front perspective view of the key identifierwith the front plate exploded from the housing.
  • FIG. 9 is a rear perspective view of the key identifier with the rear housing exploded therefrom.
  • FIG. 10 is a front view ofthe key identifier.
  • FIG. 11 is a cross-sectional view taken along lines lll-ll1 of FIG. 110.
  • FIG. 12 is a cross-sectional view of the key identifier taken along lines 12 I2 of FIG. 10 with the key fully inserted.
  • FIG, 13 is a plan view of an embodiment of a key utilizable in thepresent invention.
  • FIG. 13A is a cross-sectional view taken along lines ll3A-13A of FIG. 12.
  • FIG. 14 is a cross-sectional view of the key taken along lines 14-14 ofFIG. 13.
  • FIG. 15 is a cross-sectional view of the key identifier taken along lines 15-15 of FIG. 12.
  • FIG. 16 is a front perspective view of another embodiment of the key identifier of the present invention.
  • FIG. 17 is a perspective of the key carrier used in this other embodiment.
  • FIG. 18 is a cross-sectional view of the key identifier of this embodiment at the beginning of operation. 7
  • FIG. 19 is also across-sectional view with the key in the final state.
  • FIG. 20 is a partial cross-sectional view of this embodiment of the key identifier.
  • FIG. 21 is a radial fragmentary cross-sectional view of the embodiment of FIG. 20.
  • FIG. 22 is a fragmentary cross-sectional view taken along 7 lines 22-22 of FIG. 20.
  • FIG. 23 is a block diagram of the circuitry involved.
  • FIG. 24 is a block diagram of the circuitry of another embodiment.
  • FIGS. 1 and 2 depict the view of a door with a'mechanical lock 11 in the door 10 itself.
  • the key identifier of the present invention to the side of the door, in the wall 8, is the key identifier of the present invention.
  • the key identifier is actually mounted in the door as is the mechanical lock 11.
  • the lock could be mounted in the doorjamb rather, than in the door.
  • the individual desiring ingress through door 10 must first insert his assigned key into the keyway of key identifier 9. If the key has the proper indicia thereon a light on the key identifier will signal acceptability. At this point the key is removed from the key identifier and is inserted in the lock in the conventional manner and the lock is unlocked. If the individual had directly used his key to unlock the lock without verification by the key identifier, the unlocking step for the door would not have been achieved. 7
  • the door to be opened may only be a closure of some sort recognized as a barrier which can he opened for access purposes.
  • a mechanical lock II is mounted in a door It).
  • the top portion of a trim plate 12 is shown in FIG. 3.
  • the lock has a bolt 13 which moves into the adjoining jamb I4 through a strike 15.
  • the cylinder I6 of the lock has been modified in this embodiment to include a solenoid 17 with its armature 18 in a forward position, that is in engagement with a centrally located counterbore 19A in cam 19 to prevent its rotation.
  • the cam 19 is suitably secured to the barrel 20 as by screws 21.
  • the solenoid 17 is suitably connected to electric conductors so that it can be selectively energized whereby the armature is retracted as in FIG. 6 so that the barrel 'may be rotated when a proper key has been inserted in the lock.
  • FIG. shows the cam 19 in dotted lines as the angular movement is imparted thereto whereby the bolt 13 is withdrawn from its strike 15.
  • FIG. 7 another embodiment of the system is illustrated, where the lock 11A as illustrated does not possess the built in solenoid. Rather a separate electric lock 22 is employed which is electrically operated and is in the unlocked position upon 35. From the enclosure 35 projecting through the main plate 31 and front plate 30 are two signal lamps 36. Suitable openings 37 in the front plate 30 are provided as well as corresponding openings 38in the main plate 31. One signal lamp exists to indicate that the power is on while the second light indicates when an acceptable key has been inserted so that it may be transferred to the mechanically operated lock 11 to unlock the door.
  • FIG. 9 makes clear the contents of enclosure 35.
  • the enclosure 35 has been exploded from the key identifier.
  • the sensing elements of the key identifier are mounted in block 39 which may be integral with the main plate 31.
  • the enclosure 35 is secured to block 39 by screw 40.
  • the block 39 has four radially extending channels 41. Each of the channels contains at least one electric switch 42.
  • An operative assembly pin means 43 extends from each switch radially into block 39.
  • the switches 42 have suitable wire leads (not shown) to a male jack assembly 44 which is mounted on support rods 45 and is held thereon by screws 46 which also pass through openings 47 in the enclosure 35. Access to the male jack assembly 44 is through an aperture 48 in the enclosure 35. 7
  • a key accepting cylinder 50 is in a forward facing position andis mounted substantially axially with respect to block 39. A portion of the cylinder 50 projects through opening 51 of the front plate 30. The key 52 of the six-sided pitted type is positioned for insertion into the cylinder 50. The cylinder 50 also extends rearwardly from block 39.
  • FIG. 10 is a front view of the plate 30 and constitutes a reference for the cross-sectional views of FIG. 11 and FIG. 12.
  • FIG. 11 is a fragmentary view of the signal lamp 36 with front plate 30 in place on main plate 31 with block 39 rearward of that.
  • the signal lamp 36 has suitable terminal leads 53 also directed to the male jack assembly 44.
  • switches 42 are operated by assembly pin means 43 which include pins 54 which are urged outwardly from the switch 42 by helical spring 55 towards the key 52. Whenever the ends of the pins 54, which are adapted to fit into the pits 56 of the key 52, actually move into the pits 56 the switch 42 will operate to either close or open depending upon the manner in which the information is to be fed to the computer.
  • the lower most switch 42 acts as the start switch. This results when the key is first inserted which forces the pin 54 to operate lower switch 42. The actual operation is best initiated by having the identifier go into operation when the pin 54 of the lowermost switch 42 enters the first pit. The other side and top switches 42 then have pins which move into other pits on the longitudinal confronting surfaces of the key 52. With the first pit position, as stated, the computer is turned on, ready to receive other information and a sync type signal is sent to the computer instructing the computer to read the status of the side switches and the uppermost switch. For instance, if there are pits at the side surestablishment of proper intelligence in the 'key identifier 9.
  • the electric lock comprises a solenoid which operates through suitable mechanical linkage to withdraw a bolt from a keeper upon electric energization. Suitable resilient means urges the bolt into engaging position, that is, locking condition when the solenoid is deenergized.
  • FIGS. 8 and 9 Attention is now directed to FIGS. 8 and 9 for a further understanding of the key identifier 9.
  • the front plate 30 of the key identifier has been removed.
  • the front plate 30 is attached to main plate 31 by means of a set screw 32.
  • the key identifier is secured into a recessed position in the wall 8 by a screw 33 for instance, secured through holes 34.
  • Rearwardly extending from the main plate 31 is a cup-shaped enclosure faces or top surface of the key then the pins of the respective switches will dwell therein giving an on signal to the computer.
  • the next pit along the lowermost surface thereof will again supply a sync signal and again the other stated switches are read.
  • a key 52 will usually have a plurality of pits along its underside, the key will be read on a plurality of occasions.
  • the first pit may be used as both a turn-on means for the computer as well as a means for supplying a sync signal.
  • the intelligence provided in increments may be digested by the computer in this manner, it is preferred to collate this intelligence transiently which is then fed to the memory bank of the computer for comparison.
  • the intelligence transfer is achieved upon complete insertion of the key, as in FIG. 12, whereupon the leading portion of the key 52 impinges on switch 42D which is suitably wired to the computer through male jack assembly 44. While the description'in the above gives the impression that the key is slowly inserted, this is not the case.
  • the key may be moved in a single rapid motion.
  • a delay system permits the transfer from the key identifier to the mechanical lock for unlocking purposes leading to ingress through the now unlocked door 10. The delay period is, of course, necessary to permit removal from the key identifier to the mechanical look without the occurrence of a return to normal solenoid-caused block.
  • the surfaces of the lower half of the key are employed for the key identifier.
  • the surfaces of the upper half are coded with pits to operate the mechanical lock.
  • the uppermost surface may also have been read.
  • all the surfaces of the key 52 may be read by the key identifier with the provision of switches to confront all surfaces.
  • the mechanical lock need not be dependent upon the pits of only the upper half of the key. It will be evident that a combination of varying types may be accomplished and utilizedwithout departing from the scope of the invention.
  • the intelligence imparted is forwarded in increments.
  • the number of switches are kept to a minimum, that is, the maximum would be to include one reading switch for each surface.
  • Even the final switch 42D would be eliminated as intelligence transfer to the memory bank could be accomplished upon the conclusion of, say, reading steps.
  • the present invention also contemplates the use of a plurality of switches along one or more surfaces of the keyway whereby the key is inserted and the position of each of the switches is read for simultaneous readout. In this type of embodiment a great number of switches must be included with a concomitant greater space requirements and expense in manufacture.
  • a key identifier of this type may be more advantageously employed.
  • FIG. 13 and FIG. 14 depict key 52 in enlarged detail.
  • the surfaces thereof are seen to be appropriately pitted.
  • a ward 52A is included so that the key can be accepted in only one position thereby avoiding a spurious signal if the key were inverted and the pits were not identically positioned along both longitudinal halves of the key.
  • FIG. 13A being a cross-sectional view shows radial pin 528 in cylinder 50.
  • the end of the ping 52B rides in ward 52A.
  • FIG. 15 is a forwardly directed view of the switches 42 in reading position on a key 52 which is shown in cross section.
  • the pin 43 of uppermost switch 42 terminates in a flat manner so that it cannot project into any of the pits that may be present along the uppermost surface of the key 52.
  • the uppermost switch is merely used as an on" switch as long as the key is present.
  • the two side switches are the only two engaged in sensing the presence or absence of pits for purposes of sensing the encoded information.
  • FIGS. 16 through 22 relate to another embodiment of the key identifier arrangement of the present invention.
  • the key 52 is inserted in a carrier 60 which is mounted in the cylinder 61.
  • a major portion of carrier 60 projects forwardly from the front plate 30 (as seen in FIGS. 16 and 18).
  • the carrier as seen from FIG. 17 has a centrally located keyway 62. It has two oppositely disposed longitudinal slots 63 thereby providing access through the carrier 60 to the keyway 62.
  • the slots 63 provide access for the pins 43A of side switches 42A so that the pits along the lower sides of the key 52 may be sensed for their presence or absence thereof.
  • Upper start switch 42A is operated through alignable pin 64 located in radially located opening 65 of the carrier 60.
  • the carrier is urged outwardly by helical spring 66 which abuts one of its ends against an end portion of the cylinder 61 and the other end against a shoulder of the carrier.
  • helical spring 66 which abuts one of its ends against an end portion of the cylinder 61 and the other end against a shoulder of the carrier.
  • the sync signal from the lowermost switch need not obtain the signal directly from the key 52. Therefore, no slot 63 is provided. Rather the bottom of the carrier itself is longitudinally pitted along the periphery of the carrier 60 as can be more clearly discerned from FIGS. 20, 21 and 22. A series of pits 67 are located along the underside of the carrier 60.
  • the key 52 has been of the type disclosed in US. Pat. No. 3,303,677.
  • other types of keys could be used with conventional pin tumbler cylinder locks.
  • the number of surfaces that could be read would be circumscribed.
  • a combination key could also be employed where the uppermost and lowermost surfaces would have the well-known notch configuration while the sides would be fitted for encoded information.
  • the key identifier station has a number of leads to a transient holding stage 101.
  • Lead 102 is the on signal obtained upon initial insertion of the key.
  • a sync signal is transmitted over lead 103 while the readout signals are transferred by leads 104 and 105, more would be required when more than two readout switches are used.
  • the transfer signal passes through lead 106.
  • the transfer lead 107 carries the total intelligence to a memory stage of a computer 100 for review by the stage to determine if the key has met certain predetermined characteristics.
  • the key has been encoded for not only acceptability but for number classification so that the computer can determine to whom the key has been assigned.
  • the results of the identification and comparison is transferred through lead 109 to a printout device 110 for a permanent record including information as to key identifier station source, owner of key, time of use and acceptability or nonacceptability.
  • a signal is transferred through lead 111 to a central guard station who can monitor a plurality of key-identifier stations associated with ingress doors.
  • the computer stage 108 will send a signal through lead line 107B to transient holding stage 101 which in turn transmits a signal to the key identifier lamp 36 through lead 112 and to the electric lock arrangement 113 through lead 114.
  • a nonacceptable key will alert the guard by means of a display 115.
  • the guard may take action such as by closed circuit television monitoring of the key identifier station giving rise to the nonacceptable key.
  • the system of the present invention is particularly versatile as new keys may be issued on a periodic basis with a change in the information expected by the computer.
  • the mechanical lock need not be changed, since in most cases the surface of the key having the operating indicia for the mechanical lock may remain the same.
  • the keys may be changed in their mechanical operability.
  • FIG. 24 exemplifies the circuitry involved in a simplified version of the system. For instance, it will be seen that a plurality of leadlines 107A connects directly from the key identifier to the computer stage 108. As all of the information passed from the key'identifier to the computer isaccomplished en masse after the key has been completely inserted, there is no need for the transient holding stage.
  • the printer and display units are not included. Additionally, the guard station may be eliminated for an even more simple version.
  • the closure portion comprises what is termed a barrier section.
  • the barrier section consists of a first closure and a second closure.
  • the first closure may be a revolving door which is released upon receipt of a proper signal from the key identifier. After passing through the first closure the individual desiring entrance is presented with the second closure which is locked with a mechanical lock and may be unlocked with the same key as used in the key identifier.
  • a key identifier system and unlocking arrangement for a closure comprising a key, mechanical lock adapted to be operated by said key, linkage means for physically sensing information present on said key in the form of preselected varying dimensional configurations, electric supply means, electric switch means for converting said information into a plurality of electric pulses, computer means for comparing said plurality of electric pulses with plurality of recorded pulses previously supplied to said computer means, electric responsive means associated with said lock and normally conditioned to prevent unlocking of said closure by operation of said mechanical lock with means of said key lead means for supplying signal from said computer means to said electric responsive means upon proper comparison of said pulses for conditioning said electric responsive means to permit unlocking of said closure.
  • the electric responsive means comprises an electromagnet having armature means adapted to prevent operation of said mechanical lock.
  • the electric responsive means comprises an electromagnet having means adapted to release said closure whereby to permit the opening of said closure with operation of said mechanical lock by means of said key.
  • the electric switch means includes a plurality of switch means mounted radially with respect to said key when said key is moved into position for physically sensing information
  • said linkage means includes pins adapted to ride on said longitudinal surfaces and into said pits and thereby turn said switch means into an on or off position as said key is moved.
  • said linkage means includes a key carrier means interposed between said switch means and that portion of the key having said longitudinal surfaces, said carrier means adapted to be moved past said switch means, said carrier having apertures to permit access of said pins to at least one of the longitudinal surfaces of said key.
  • delay means is included for maintaining and limiting the duration of said electric responsive means in a positive position thereby obtaining limited but sufficient time to operate said mechanical lock by means of said key.
  • printout means is cooperatively associated with said computer means whereby a permanent record of said information on said key is obtained.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lock And Its Accessories (AREA)
US3599454D 1969-12-31 1969-12-31 Key reader and identifier system Expired - Lifetime US3599454A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88940569A 1969-12-31 1969-12-31

Publications (1)

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US3599454A true US3599454A (en) 1971-08-17

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US3599454D Expired - Lifetime US3599454A (en) 1969-12-31 1969-12-31 Key reader and identifier system

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US (1) US3599454A (de)
BE (1) BE761136A (de)
CH (1) CH524044A (de)
DE (1) DE2064381A1 (de)
FR (1) FR2074489A5 (de)
GB (1) GB1310447A (de)
NL (1) NL7019054A (de)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694810A (en) * 1969-12-01 1972-09-26 Thomas R Mullens Electronic security systems for multi-roomed buildings
US3787812A (en) * 1971-10-20 1974-01-22 Waterbury Pressed Metal Co Pick-proof lock
US3822368A (en) * 1972-04-17 1974-07-02 R Salzman Lock construction
US3858920A (en) * 1973-05-31 1975-01-07 Monocab Inc Vehicle door positioning and locking assembly
US3995464A (en) * 1975-03-24 1976-12-07 W. J. Reynolds (Equipment) Limited Door locking means
US4333328A (en) * 1980-05-02 1982-06-08 A.R.M. Access identification apparatus
US4393672A (en) * 1978-12-13 1983-07-19 Egon Gelhard Cylinder lock and key assembly
US4567741A (en) * 1983-02-14 1986-02-04 Trempala Dohn J Safety key holder
US4591702A (en) * 1979-04-23 1986-05-27 Naveed Alam Digit manipulative data input key
US4603564A (en) * 1981-06-17 1986-08-05 Bauer Kaba Ag Lock cylinder with integrated electromagnetic locking system
US4658611A (en) * 1984-07-12 1987-04-21 F. C. Brown (Steel Equipment) Limited Locking member incorporating a cam lever lock and a sliding bolt
US4730471A (en) * 1985-10-24 1988-03-15 Bauer Kaba Ag Apparatus for electromagnetic locking on a lock cylinder for a mechanical/electronic locking system
US4761976A (en) * 1982-11-26 1988-08-09 Bauer Kaba Ag Lock cylinder with integrated electromagnetic locking mechanism
US4909053A (en) * 1988-05-17 1990-03-20 Liberty Telephone Communications, Inc. High security door locking device
US4929003A (en) * 1988-10-07 1990-05-29 Adtec Incorporated Motorized locking mechanism for a door
US5003801A (en) * 1987-01-20 1991-04-02 Ford Motor Company Programmable key and improved lock assembly
US5410301A (en) * 1992-11-24 1995-04-25 Mas-Hamilton Group Status monitoring system for an electronic lock
US6442986B1 (en) 1998-04-07 2002-09-03 Best Lock Corporation Electronic token and lock core
US20040128159A1 (en) * 2002-12-12 2004-07-01 Mcginn Dennis Vehicle activity module
US20050088282A1 (en) * 2003-09-24 2005-04-28 Lutrell Denson Device and process for identification of keys
US20060066440A1 (en) * 2004-09-28 2006-03-30 Ming-Hsiang Yeh Structure of door lock control apparatus
US20070273534A1 (en) * 2002-12-12 2007-11-29 Mcginn Dennis Vehicle activity module
CN113585895A (zh) * 2021-08-09 2021-11-02 宁波望通锁业有限公司 一种联动式房车车门锁

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US4616491A (en) * 1984-05-30 1986-10-14 Genest Leonard Joseph Key operated electronic lock
GB8432549D0 (en) * 1984-12-21 1985-02-06 Lowe & Fletcher Ltd Lock & key
GB2169651B (en) * 1985-01-12 1988-04-07 Snr John Maxwell Mullin Locking device
GB2199881B (en) * 1986-09-18 1990-04-25 Lowe & Fletcher Ltd Lock and key
EP0564684A1 (de) * 1992-04-09 1993-10-13 Institut " Josef Stefan " Elektronisches Zylinderschloss und ein dessen Sperrung freigebender Schlüssel
IT1276455B1 (it) * 1995-06-29 1997-10-31 Mottura Serrature Di Sicurezza Serratura di sicurezza per porte di abitazioni e casseforti.

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Cited By (31)

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US3694810A (en) * 1969-12-01 1972-09-26 Thomas R Mullens Electronic security systems for multi-roomed buildings
US3787812A (en) * 1971-10-20 1974-01-22 Waterbury Pressed Metal Co Pick-proof lock
US3822368A (en) * 1972-04-17 1974-07-02 R Salzman Lock construction
US3858920A (en) * 1973-05-31 1975-01-07 Monocab Inc Vehicle door positioning and locking assembly
US3995464A (en) * 1975-03-24 1976-12-07 W. J. Reynolds (Equipment) Limited Door locking means
US4393672A (en) * 1978-12-13 1983-07-19 Egon Gelhard Cylinder lock and key assembly
US4591702A (en) * 1979-04-23 1986-05-27 Naveed Alam Digit manipulative data input key
US4333328A (en) * 1980-05-02 1982-06-08 A.R.M. Access identification apparatus
US4603564A (en) * 1981-06-17 1986-08-05 Bauer Kaba Ag Lock cylinder with integrated electromagnetic locking system
US4761976A (en) * 1982-11-26 1988-08-09 Bauer Kaba Ag Lock cylinder with integrated electromagnetic locking mechanism
US4567741A (en) * 1983-02-14 1986-02-04 Trempala Dohn J Safety key holder
US4658611A (en) * 1984-07-12 1987-04-21 F. C. Brown (Steel Equipment) Limited Locking member incorporating a cam lever lock and a sliding bolt
US4730471A (en) * 1985-10-24 1988-03-15 Bauer Kaba Ag Apparatus for electromagnetic locking on a lock cylinder for a mechanical/electronic locking system
US5003801A (en) * 1987-01-20 1991-04-02 Ford Motor Company Programmable key and improved lock assembly
US4909053A (en) * 1988-05-17 1990-03-20 Liberty Telephone Communications, Inc. High security door locking device
US4929003A (en) * 1988-10-07 1990-05-29 Adtec Incorporated Motorized locking mechanism for a door
US5410301A (en) * 1992-11-24 1995-04-25 Mas-Hamilton Group Status monitoring system for an electronic lock
US7316140B2 (en) 1998-04-07 2008-01-08 Stanley Security Solutions, Inc. Electronic token and lock core
US6442986B1 (en) 1998-04-07 2002-09-03 Best Lock Corporation Electronic token and lock core
US6668606B1 (en) 1998-04-07 2003-12-30 Best Access Systems Electronic token lock core
US6840072B2 (en) 1998-04-07 2005-01-11 Stanley Security Solutions, Inc. Electronic token and lock core
US7340400B2 (en) 2002-12-12 2008-03-04 Performance Analytics, Inc. Vehicle activity module
US20070273534A1 (en) * 2002-12-12 2007-11-29 Mcginn Dennis Vehicle activity module
US20040128159A1 (en) * 2002-12-12 2004-07-01 Mcginn Dennis Vehicle activity module
US7949541B2 (en) 2002-12-12 2011-05-24 Performance Analytics, Inc. Vehicle activity module
US8606589B2 (en) 2002-12-12 2013-12-10 Sentrilock, Llc Vehicle activity module
US9208456B2 (en) 2002-12-12 2015-12-08 Sentrilock, Llc Vehicle activity module
US10030418B2 (en) 2002-12-12 2018-07-24 Sentrilock, Llc Shielded electronic lock box
US20050088282A1 (en) * 2003-09-24 2005-04-28 Lutrell Denson Device and process for identification of keys
US20060066440A1 (en) * 2004-09-28 2006-03-30 Ming-Hsiang Yeh Structure of door lock control apparatus
CN113585895A (zh) * 2021-08-09 2021-11-02 宁波望通锁业有限公司 一种联动式房车车门锁

Also Published As

Publication number Publication date
BE761136A (fr) 1971-05-27
DE2064381A1 (de) 1971-07-29
NL7019054A (de) 1971-07-02
CH524044A (de) 1972-06-15
GB1310447A (en) 1973-03-21
FR2074489A5 (de) 1971-10-01

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