US3782147A - Security locks - Google Patents

Security locks Download PDF

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Publication number
US3782147A
US3782147A US00205654A US3782147DA US3782147A US 3782147 A US3782147 A US 3782147A US 00205654 A US00205654 A US 00205654A US 3782147D A US3782147D A US 3782147DA US 3782147 A US3782147 A US 3782147A
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United States
Prior art keywords
housing
key
magnets
axis
lock
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Expired - Lifetime
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US00205654A
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English (en)
Inventor
H Hallmann
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MRT MAGNET REGELTECHNIK GmbH
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MRT MAGNET REGELTECHNIK GmbH
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0038—Operating or controlling locks or other fastening devices by electric or magnetic means using permanent magnets
    • E05B47/0042—Operating or controlling locks or other fastening devices by electric or magnetic means using permanent magnets with rotary magnet tumblers
    • 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]
    • Y10T70/7057—Permanent magnet
    • 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
    • Y10T70/7441—Key
    • Y10T70/778—Operating elements
    • Y10T70/7791—Keys
    • Y10T70/7904—Magnetic features

Definitions

  • ABSTRACT A security lock adapted to be operated by magnetic [30] Foreign Application Priorit Data induction and comprising a case, a bolting unit con- May 11 1971 Germany P 21 23 168.5 mining at least one group of magnets displaceably mounted in the case and at least one protective block- ⁇ 52 us. c1.
  • the known arrangement is imperfect to the extent, however, that it is not possible to bring the rocker unit to the floating state by means of any magnet.
  • the magnet rigidly installed in the case must offer to the rocker unit a quite precise resistance which must be achieved by field-strength techniques involving repulsion on the other side of the rocker unit. This is impossible given the need for repulsion, since even with a much stronger strange magnet applied it is attraction of the rocket unit that occurs rather than repulsion, especailly as the zone of magnetization on the magnets of the rocker operates compensatingly by reason of north and south fields.
  • this task is solved through making the bolting unit displaceable in such a manner that, with the magnet-equipped key removed, it co-operates with protective blocking members of the case in a detent fashion, and when the magnet-equipped key is applied, as a consequence of polarity, the polar diagram and the field-strength of the mutually attuned groups of magnets appertaining to the bolting unit and the key it is maintained in a free floating state making actuation of the lock possible.
  • a further object of the invention provides a case in which a securing member is rotably mounted which carries a supporting plate urged by a spring which presses the securing member towards an opening for the key.
  • Another object of the invention is to provide a security lock in which the securing member carries in front of the supporting plate, and in fact in the direction of the opening for the key, a tumbler tiltable transversely to the axis of the securing member, the radial ends of the tumbler being insertable in protective detaining notches appertaining to the case.
  • the plate of the securing member carries two magnets, and the tumbler a part of soft iron arranged opposite these magnets.
  • the tumbler is provided with magnets on both sides of the tilting axis.
  • the securing member may have, in front of the tiltable tumbler, a plate which covers over the opening for the key, two actuating studs being arranged on the plate. These actuating studs have associated with them recesses on the magnet-equipped key.
  • Yet another object of the invention is to provide a security lock in which the magnet-equipped key carries two magnets which in their polar diagram, the type of poles and the field-strength are so arranged that only when this key is brought to apply will the pertinent tumbler, provided with duly adjusted magnets, be led to move from the protective detaining notches to the free floating state.
  • the magnet-equipped key is preferably provided with an external cone which fits into a corresponding internal taper in the case.
  • the tumbler consists of a disc bearing magnets, which disc is rotatable about an axis running in the direction of the axis of the barring bolt.
  • the discs are provided with excised areas through which a barring bolt can only penetrate when the discs are so rotated by a group of magnets embedded in the magnet-equipped key that they act in complementary fashion to form a circle.
  • the barring bolt may be connected to a pressure plate which finds resilient support on the lock case, and to a lock-actuating bolt.
  • the barring bolt is capable of being lifted from the discs by pressing in the spring-loaded pressure plate through the agency of the magnet-equipped key, the discs as they are released rotating into the actuating position and forming their common opening into which, upon the subsequent release of the pressure plate, the bar-ring bolt can be inserted.
  • the barring bolt is able to be moved into the locking position without a magnetequipped key by pressing in the pressure plate inside the case.
  • the protective blocking member makes provision for a situation whereby the pressure plate will always be capable of actuation only when the appropriate key which rotates the discs into the lock-actuating position is also superimposed. The accidental pressing in of the pressure plate is consequently excluded.
  • the disc is provided with an excised portion into which a barring bolt connected to a pressure plate from the direction of the inner side of the lock is insertable when the magnet-equipped key has rotated the disc into the lock-actuating position
  • the blocking member is a swivelling latch which, upon the key being duly applied or upon due actuation manually, is turned outward from the path of travel of the pressure plate and, upon the key being removed, is rotated into the path of travel of the pressure plate.
  • the swivelling latch therefore by these means provides for the effect that the pressure plate cannot be pressed in when the key has not been duly applied.
  • the pivotal movement of the swivelling latch into the path of travel of the pressure plate is effected with the aid of magnetic forces between the swivelling latch and the disc.
  • the pivotal movement of the swivelling latch into the wall of the case is effected by the magnet-equipped key.
  • the freely movable arm of the swivelling latch may have a magnet adjustably mounted thereon. This magnet is attracted by the magnets of the disc so long as the magnetic field between the disc and the magnet of the swivelling latch has been neutralized by the key.
  • the disc is in addition arranged to be axially displaceable, and the protective blocking member to be stationary within the case; the blocking member in this situation engages radially in the disc, it being freely movable in annular grooves at the axial terminal positions of the disc and being capable of transfer fromm one annular groove at one terminal position to the other such groove, by way of an axial groove connecting the two annular grooves, only when the key has rotated the disc into the lock-actuating position.
  • the disc therefore undergoes displacement with respect to the blocking member, whereas in the form of embodiment previously described the blocking member undergoes displacement with respect to the axially displaceable pressure plate.
  • the terminal positions of the disc are provided on either side of the blocking member, and the blocking member travels through an excised area at the margin of the disc when the disc has been brought to the locking position upon being pressed in.
  • This rotation of the toothed stellate unit into the open position must not only be possible manually with the assistance of a mechanical lever. If, for example, a master-key is required for a certain group of locks, then the rotation of the stellate unit into its open position can be effected, against the urging of a spring, by means of a special magnet-equipped key operating on a magnet arranged on the stellate unit.
  • the advantages achieved by the invention more especially consist in the point that the lock according to the invention can in each instance be operated by only one key, which can be produced with a very great number of variants through the circumstance that every arrangement of the angle of the magnets to the actuating studs, every alteration of the magnets in respect of polarity and field-strength result in a combination which cannot be operated by any key of another combination. These possibilities of variations are increased to some hundred thousands by an arrangement involving two tumblers.
  • a further advantage consists in the point that the lock cannot in practice be opened by forceable mechanical intervention without the appropriate key.
  • any axial displacement of the securing member increases the locking strength of the lock because it brings the tumbler or tumblers into more powerful engaging action with the protective detaining notches in the case but even an attempt to cancel out the locking system of the lock by magnetic force effective in another way is in practice always condemned to failure because too many conditions. regarding the mechanical arrangement and the formation of the magnet fields would have to be fulfilled for such a goal to be attained.
  • a further embodiment of the lock according to the invention possesses the advantage of a still more sturdy design.
  • the key no longer has any projecting parts, with the consequence that, for example, it cannot get snagged in the pocket in the way other keys do. Actuation of the lock without the key is impossible without the lock being destroyed.
  • FIG. 1 shows one embodiment of a security lock according to the invention in section
  • FIG. 2 shows a second embodiment of a security lock according to the invention, this time in a fractional section viewed from above;
  • FIG. 3 shows the magnet-equipped key belonging to lock shown in FIG. 2;
  • FIG. 4 shows in side elevation the security lock shown in FIGS. 2 and 3 in the open position
  • FIG. 4a is a top plan view of FIG. 4;
  • FIG. 5 corresponds to FIG. 4 but shows the lock in the locked position
  • FIG. 5a is a top plan view of FIG. 4;
  • FIG. 6 is a section taken through a security lock operated by magnetic induction, with a protective blocking member according to a further embodiment of the invention.
  • FIG. 7 is a fractional top view of the security lock shown in FIG. 6;
  • FIG. 8 shows a further embodiment of a security lock according to the invention fitted with a protective blocking member
  • FIG. 9 shows a further embodiment of a security lock according to the invention in plan view
  • FIG. 10 is a side sectional view of the embodiment shown in FIG. 9.
  • FIGS. 11 to 13 show a retarding device for the rotating tumbler discs to provide security against illicit operation.
  • FIG. 1 of the drawings shows a security lock according to the invention having a case 1.
  • a securing member 2 is rotatively mounted, the member comprising a shaft 3 and a rotative plate 4.
  • a coil spring 5 bears at one end against the plate 4 and atthe end against the end wall of a recess in the case 1, in which the plate 4 is located.
  • Magnets 6 and 7 are inserted into the plate 4.
  • a tumbler 9 is pivotally mounted on the securing member 2 and is movable within a further recess in the case 1.
  • To the lower side of the tumbler 9 is attached a steel plate 10, positioned opposite the magnets 6 and 7.
  • the steel tongue 10 along with the magnets 6 and 7 constitutes a bistable tilting system which is in both instances at rest when the steel tongue 10 is in contact with one of the two magnets 6 or 7, the tumbler 9 then having undergone tilting into the corresponding position.
  • the tumbler 9 engages in one of two protective detaining notches 11 and 12 provided in the case 1. By this means they secure the securing member 2 against rotation.
  • Two magnets 13 and 14 are provided on the upper side of the tumbler 9.
  • the end of the securing member 2 on which the tumbler 9 is provided bears against an actuating plate 15 in which two actuating studs 16 and 17 are located.
  • a magnet-equipped key 18 has two recesses 19 and 20 which are able to be placed over the catching studs 16 and 17.
  • the key 18 carries on its lower side two magnets 23 and 24.
  • the polarity of the magnets 23 and 24 is arranged to correspond with the polarity of the magnets 13 and 14 as shown in FIG. 1 so that if the magnet-equipped key 18 is placed upon the plate 15, the tumbler 9 will be converted by the relevant magnet 6 or 7 from its tilted position into a horizontal floating state, the attraction of the steel tongue 10 being then relieved, with the consequence that the securing member 2 will be freed.
  • the magnetequipped key 18 through the agency of the actuating studs 16 oand 17, the securing member 2 can undergo rotation, it then actuating a tang 25 fo the lock which is connected with it.
  • the axial engagement of the magnet-equipped key 18 in the case 1 may be limited by a cone 26, for instance, which is in contact with a corresponding internal taper 27 of the case 1, so that no axial forces are exerted during actuation. If an attempt should be made to open the lock by force through the agency of the actuating studs 16 and 17 without the appropriate key, then this is countered by the tumbler 9 detained in a protective detaining notch 11 or 12. If, in this situation, an attempt should be made to loosen the securing effect by exerting axial pressure, then the coil spring 5 will be compressed and the tumbler 9 will engage in both protective notches l1 and 12, so that the securing effect is doubled.
  • the magnets 13, 14, 23 and 24 are coded by multipole and lateral magnetization.
  • the consequence is a great number of variants.
  • Even the smallest alteration in a magnetic field on one side has the effect that the tumbler 9 will drop into one of the protective detaining notches 11 or 12 and will secure the lock.
  • the number of variants rises into some hundreds of thousands if two tumblers are employed, possibly through a technique whereby the second one is tiltably borne at a right angle to the first.
  • the copying of a magnet-equipped key with four polar diagrams is extremely difficult, since the polar diagram and the type of the poles have to be determined, along with absolutely identical field-strengths.
  • FIGS. 2 to 5 of the accompanying drawings show another embodiment of the invention in which the axis of rotation of the tilting arrangement is in a vertical direction.
  • the lock case 101 there are a plurality of tumbler discs, in the present instance two tumbler discs 102 and 103 rotatively borne between stops.
  • the discs 102, 103 carry magnets 104, 105 respectively.
  • the tumbler discs 102 and 103, tumblers 106 and 107 are situated to form semi-circular excised areas removed from the margin of the disc-shaped bodies.
  • the tumblers 106 and 107 act complementarily to constitute a circle through which a barring bolt 108 is able to penetrate. If the tumbler discs 102 and 103 do not occupy this position but lie in the position indicated by chain-dotted lines which is achieved by the fact that the tumbler discs tilt towards each other through mutual attraction of the magnets, then the barring bolt 108 makes contact with the discs 102, 103 and consequently finds support similarly against the case 101, just as in the previously described arrangement the tumbler 9 engaged in the protective detaining notches 11 and 12 in the case 1.
  • pairs of reciprocal magnets 110 and 111 are firmly attached. If this magnet-equipped key 109, after rotation counterclockwise about its axis, is laid upon the lock illustrated in FIG. 2, then the north poles of the magnets 110 will exert repulsion forces on the north pole of the magnet 104, which forces, if the magnets of the magnets 110 are equally strongly magnetized, will be different fromm each other to the extent that the north pole of the magnet 104 is not positioned precisely between them. These forces of repulsion therefore have the effect that the tumbler disc 102 keeps rotating until this condition is fulfilled.
  • the tumbler disc 103 will rotate until the south pole of its magnet 105 is positioned precisely between the south poles of the key magnets 111. Then, the tumblers 106 and 107 will release the barring bolt 108, and the lock will open.
  • FIGS. 4 and show an overall arrangement of this embodiment of the security lock according to the invention.
  • a cup-shaped outer case 112 there are a resilient pressure plate 113 and a lock-actuating bolt 114, both connected to the barring bolt 108 (not shown).
  • the pressure plate 113 is pressed into the case and thus is locked because of the contact made by the barring bolt 108 on the tumblers 106 and 107.
  • the lock-actuating bolt 114 will protrude downwards as shown in FIG. 5. If the magnet-equipped key 115 is applied to the pressure plate 113, it then being fixed in place by a projection 116 (FIG.
  • the magnet-equipped key 115 may be removed and, for example, put into a pocket. Through this circumstance the tumbler discs 102 and 103 will attempt by a rotating movement to tilt back into their position of repose. This they are still prevented from doing, however, by the barring bolt 108. If the lock is to be locked again, however, then the pressure plate 113 need only be pressed downward for example by a finger. The barring bolt 108 will release the tumblers 106 and 107. The tumbler discs 102 and 103 will tilt back into their position of repose, and the lock-actuating bolt 114 will close the lock mechanism. It is now no longer possible to open the lock without the magnet-equipped key 115.
  • a barring bolt 203 arranged to be axially displaceable.
  • a movement-limiting disc 205 between which and the lower edge of a recess 207 in the case 201 there is provided a coil spring 209.
  • the coil spring urges the barring bolt 203 in the direction of an opening 211 provided in the case 201.
  • a pressure plate 215 is attached to the barring bolt 203 by means of lateral supports 213. The pressure plate 215 closes off the opening 211 of the lock.
  • a swivelling latch 229 In the upper portion of the side wall of the case 201 there is a recess 227 in which a swivelling latch 229 is pivotally mounted.
  • the axis of rotation of the swivelling latch runs in a direction parallel to the axis of the barring bolt 203.
  • the latch 229 is equipped at its freely moving end 231 with a magnet 233.
  • the said magnet 233 co-operates with the magnetic fields of the discs 219 in such a manner that the swivelling latch is turned to be under the plate 215, in the path of travel of the latter.
  • the swivelling latch only pivots into the recess 227 when a magnet-equipped key is applied to the case 201 when the magnetic fields of the key operate on the magnet 233 and pivot the swivelling latch 229 into the recess 227.
  • the lock comprises a case 301 housing a cylinder 303 to effect locking.
  • a cylinder 303 In the cylinder 303 an enlargement 305 is provided in which tumbler discs 307 are pivotally mounted.
  • the axes of rotation of the tumbler discs 307 run parallel to the axis 309 of a barring bolt 311.
  • a tang 313 is arranged on the barring bolt 311 which is capable of insertion into a recess 315 in a connecting plate 317. Stops 319 indicate the position of the connecting plate within the case 301.
  • spring-equipped barring bolts 321 which are capable of being pressed home in the direction of an arrow 323 against the action of springs 325.
  • the bolts 321 can engage in protective bores 327 and are provided with pins 329 which are arranged to engage in bores 331 in the tumbler discs 307 when a key 333 is applied to the lock. Magnets inside this key rotate the tumbler discs 307 into such a position that the rotor bores 331 are located in front of the pins 329. In this reciprocal position of the tumbler discs the latter can be pressed in by means of the key 333, the barring bolt 311 then being pushed into a locking position.
  • This blocking member 337 is arranged on the cylinder 303 and engages in the tumbler disc 307 indicated above. In the position of release shown in the drawing, the blocking member is located in an annular groove 339, so that the disc 307 is freely movable.
  • the annular groove 339 provided in one terminal position of the disc is connected by means of an axial groove 341 to a further annular groove 343 which is located at the site of the other terminal position of the axially displaceable disc.
  • the connecting groove is arranged in such a manner that the blocking member is freely displaceable within it if the discs, when the key is applied, have been rotated to their lock-actuating position.
  • the barring bolt can be transferred to the detent position by an axial displacement of the discs. If, however, no key has been applied to the discs 307, then they will have rotated into a reciprocal position prescribed by the magnets 335. In this case the blocking member 337 will not be in the zone of the connecting groove 341. The disc cooperating with the blocking member therefore cannot be pressed in. Consequently a specific locking system proof against accidental pressure or catching has been brought about.
  • three tumbler discs 407 are arranged centrically about an axis 409. All three discs 407 are carried by a barring bolt 411 by way of a supporting disc 413 and axles 414. Reinforcement is provided for the supporting system, comprising the plate 413 and the axles 414, by means of a pressure plate 415 which closes off the lock 417 from above.
  • the barring bolt 411 can be pressed into the case 419 in the direction of the axis 409, upon the pressure plate 415 being pressed downward.
  • a stellate unit 421 should permit the travel of the discs 407 past itself.
  • This stellate unit 421 is pivotally arranged on the case 419 by means of a support 423.
  • the axis of rotation of the stellate unit coincides with the axis 409 of the barring bolt 411.
  • the stellate unit 421 engages an actuating lever 425 by which the stellate unit is manually rotatable through a pivotal angle of 60.
  • the stellate unit and the lever arm 425 are fixed firmly to each other for this purpose.
  • the stellate unit 421 is, given a lack of external force operating on the lever arm 425, swung over into the position shown in chain-dotted lines in FIG. 9, this being indicated by the letter R. If the stellate arm 421 is turned with the aid of the lever arm 425, then it will attain the position shown in solid lines denoted by 0.
  • the teeth 427 of the stellate unit 421 are in position 1R pivoted into the effective zone of the discs 407.
  • the excised areas 429 in the discs 407 will then be positioned in various contrarily placed situations following rotation, and the teeth 427 will be covered by the material of the discs 407. In this position, therefore, the pressure plate 415 cannot be pressed inwards, since the discs will not come past the teeth 427. If, however, a key is applied to the lock 417, then the tumbler discs 407 will rotate in the direction of the arrow 431 into the position indicated in solid lines in FIG. 9.
  • the excised areas 429 will therefore be located in the area of the teeth 427, and the pressure plate 415 can now be pressed in thus making possible the bolting of the lock.
  • the discs 407 forthwith pivot again, and the discs are unable to return to their initial positions because of a spring operating on the stellate unit. This return will only become possible again if a key is applied and if, with light downward pressure on the pressure plate 415, the discs are released and pivot into the position shown in solid lines in FIG. 9.
  • a retarder is provided for the rotating tumbler discs 501.
  • the said retarder consists of a soft-iron part 503 possessing excised areas 505 for discs 501 and capable of undergoing displacement axially with respect to the discs.
  • the soft-iron core 503 finds support by means of a spring 507 located between a pressure plate 509.
  • a magnetic security lock comprising, in combination; a housing having an axis and an accessible end, blocking means rotatably mounted within said housing for limited rotation about an axis substantially parallel to said housing axis and selectively orientable between locking and unlocking positions, control means mounted within said housing for selective relative cooperable movement with respect to said blocking means in the direction of said housing axis, said blocking means cooperating with said control means wherein orientation of said blocking means to said locking position relates said blocking and control means to prevent unlocking of said lock and orientation of said blocking means to said unlocking position relates said blocking and control means to permit unlocking of said lock, said blocking means having a first permanent magnet diametrically mounted thereon disposed adjacent said housing end having poles rotatable in a plane substantially perpendicular to said housing axis, a key adapted to be placed adjacent said housing end for orientation in a predetermined manner with respect to said housing axis, a pair of spaced, substantially parallel second permanent magnets mounted upon said key having poles substantially perpendicularly
  • said blocking means comprises at least a pair of rotatable members mounted within said housing each having a first permanent magnet mounted thereon, said first magnets being rotatable in a common plane substantially perpendicular to said housing axis, and at least two pairs of second magnets mounted in said key within a common plane, each pair of second key magnets adapted to impose a repulsion magnetic force upon a first magnet and member.
  • said blocking means members include coplanar discs disposed substantially perpendicular to said housing axis each having a periphery, a notch defined in each of said disc peripheries complementary to a portion of the aligned transverse cross section of said control means, said notches defining an opening receiving said control means upon positioning of said blocking means discs to said unlocking position permitting relative axial movement of said control means and said blocking means members.
  • a magnetic security lock comprising, in combination, a housing having an axis and an accessible end, control means movably mounted within said housing for movement in the direction of said housing axis between operative and inoperative positions, blocking means movably mounted within said housing selectively orientable between locking and unlocking positions, said blocking means cooperating with said control means wherein orientation of said blocking means to said locking position prevents movement of said control means from said inoperative position to said operative position and orientation of said blocking means to said unlocking position permits movement of said control means from said inoperative position to said operative position, said blocking means comprising at least one member rotatable about an axis parallel to said housing axis and having a first permanent magnet mounted thereon disposed adjacent said housing end having poles rotatable in a plane substantially perpendicular to said housing axis, a key adapted to be placed adjacent said housing end for orientation in a predetermined manner with respect to said housing axis, a second permanent magnet mounted within said key having poles substantially perpendicularly oriented to said housing
  • a magnetic security lock comprising, in combination, a housing having an open end, a control shaft rotatably mounted within said housing about an axis and capable of axial displacement between first and second positions, an arm mounted on said shaft for pivotal movement on a pivot axis perpendicular to said shaft axis between shaft locking and shaft releasing positions, abutment means defined on said housing receiving said arm when in said shaft locking position, biasing means biasing said arm toward said shaft locking position, a pair of permanent magnets mounted on said arm, a magnet being mounted on each side of said pivot axis equidistant therefrom, torque transmitting means defined on said shaft adjacent said housing end, a key adapted to be received within said housing open end, a pair of permanent magnets mounted on said key, torque transmitting means defined on said key mating with said shaft torque transmitting means for transferring torque from said key to said shaft upon said key being placed in said housing end in a predetermined manner, said key mounted magnets being disposed adjacent said arm mounted magnets with like poles disposed toward each
  • biasing means comprises at least one magnet mounted on said shaft.

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  • Lock And Its Accessories (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
US00205654A 1971-05-11 1971-12-07 Security locks Expired - Lifetime US3782147A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2123168A DE2123168C3 (de) 1971-05-11 1971-05-11 Magnetische Sperr und Steuervorrichtung

Publications (1)

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US3782147A true US3782147A (en) 1974-01-01

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Application Number Title Priority Date Filing Date
US00205654A Expired - Lifetime US3782147A (en) 1971-05-11 1971-12-07 Security locks

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US (1) US3782147A (enExample)
AU (1) AU465132B2 (enExample)
CA (1) CA957524A (enExample)
DE (1) DE2123168C3 (enExample)
FR (1) FR2139211A5 (enExample)
GB (1) GB1374599A (enExample)
IT (1) IT944563B (enExample)

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US4132091A (en) * 1977-09-23 1979-01-02 Orion Industries Self locking fuel cap
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US4777815A (en) * 1985-09-10 1988-10-18 Avant Incorporated Group card-key actuated lock having individual lockout
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US4936896A (en) * 1988-12-19 1990-06-26 Hiroshi Hasegawa Device for confirming whether a lock is locked or unlocked
US5010750A (en) * 1989-02-02 1991-04-30 Dom-Sicherheitstechnik Gmbh & Co. Kg Lock cylinder with electromagnetic tumbler
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US5394716A (en) * 1991-02-27 1995-03-07 Maurice Ries Lock system
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US5431293A (en) * 1994-03-14 1995-07-11 Piron; Ludwig A. Child-proof container closure and locking system
US5485733A (en) * 1993-05-13 1996-01-23 Hoffman; Charles G. Concealed magnetic lock for cabinet closure
US5525006A (en) * 1995-01-05 1996-06-11 Kilman Electriloc Inc. Flush mount well protector
US6000735A (en) * 1998-11-06 1999-12-14 Jormac Products, Inc. Automatic child-resistant sliding door lock
US6550298B1 (en) * 2001-10-09 2003-04-22 Liang-Chin Su Lockset keyway cover-up mechanism
US20030177797A1 (en) * 2002-03-20 2003-09-25 Storvick Darrell M. Magnetically reactive pivot latch system
US20050116042A1 (en) * 2003-08-18 2005-06-02 Willkens Matthew F. Magnetic retaining or holstering device for attaching a hand-held scanner to the body
US20050186027A1 (en) * 2004-02-19 2005-08-25 Kang Jong S. Fastener with locking function
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US20120291501A1 (en) * 2010-02-26 2012-11-22 Gentile Frank L Magnetic lock and key assembly
US8863563B2 (en) * 2010-02-26 2014-10-21 Rexnord Industries, Llc Magnetic lock and key assembly
US20140202221A1 (en) * 2011-06-14 2014-07-24 Fabio Fontana Fastening and unfastening system of stackable elements
US9273494B2 (en) * 2011-06-14 2016-03-01 Fabio Fontana Fastening and unfastening system of stackable elements
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US9249600B2 (en) * 2013-02-15 2016-02-02 Pier Luigi Oliana Lock for a door or door wing
US20140230500A1 (en) * 2013-02-15 2014-08-21 Pier Luigi Oliana Lock for a door or door wing
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US9988827B2 (en) * 2014-10-16 2018-06-05 David Frank Borenstein Magnetic key assembly
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EP3256670A4 (en) * 2014-12-30 2018-12-05 Pahmet LLC Authentication and unlocking system and method utilizing magnetic actuation
US10627178B2 (en) 2014-12-30 2020-04-21 Pahmet Llc Authentication and unlocking system and method utilizing magnetic actuation
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CN105650269B (zh) * 2015-12-29 2018-06-26 江阴皇润车业有限公司 用于换挡机构的电磁锁
CN105650269A (zh) * 2015-12-29 2016-06-08 江阴皇润车业有限公司 用于换挡机构的电磁锁
US20180162282A1 (en) * 2016-05-18 2018-06-14 Shanghai Yanfeng Jinqiao Automotive Trim Systems Co. Ltd. Console assembly for vehicle interior
US10717390B2 (en) 2016-05-18 2020-07-21 Shanghai Yanfeng Jinqiao Automotive Trim Systems Co. Ltd. Console assembly for vehicle interior
US10737628B2 (en) * 2016-05-18 2020-08-11 Shanghai Yanfeng Jinqiao Automotive Trim Systems Co. Ltd. Console assembly for vehicle interior
US20170335604A1 (en) * 2016-05-19 2017-11-23 Guangzhou Prodigy Daily-Production Co., Ltd Magnetic lock
US10407944B2 (en) * 2016-06-03 2019-09-10 Geerpres, Inc. Magnetic lock and utility carts including same
US11428027B2 (en) * 2017-06-16 2022-08-30 Mayapple Baby Llc Locking mechanism and locking body assembly for magnetic lock, and the magnetic lock
US20200291683A1 (en) * 2017-11-02 2020-09-17 Iloq Oy Electromechanical lock utilizing magnetic field forces
US11808057B2 (en) * 2017-11-02 2023-11-07 Iloq Oy Electromechanical lock utilizing magnetic field forces
US11530554B2 (en) * 2018-02-19 2022-12-20 Dorel Juvenile Group, Inc. Cabinet security system
US20200224455A1 (en) * 2019-01-11 2020-07-16 Joerg ELLEFRED Magnetic lock
US11466474B2 (en) * 2019-01-11 2022-10-11 Simonswerk Gmbh Magnetic lock
US11572723B2 (en) 2019-02-27 2023-02-07 Shanghai Yanfeng Jinqiao Automotive Triim Systems Co. Ltd. Vehicle interior component
US20220056733A1 (en) * 2020-08-20 2022-02-24 Cameron Neil Carr Magnetic privacy lock control
US12258786B2 (en) * 2020-08-20 2025-03-25 Cameron Neil Carr Magnetic privacy lock control
US20250052091A1 (en) * 2021-12-08 2025-02-13 Bradley Company, LLC Magnetic Lock System
US20230249883A1 (en) * 2022-02-04 2023-08-10 Rubbermaid Commercial Products Llc Locking mechanisms to secure multiple cart components
US12466623B2 (en) * 2022-02-04 2025-11-11 Rubbermaid Commercial Products Llc Locking mechanisms to secure multiple cart components
US20250257588A1 (en) * 2022-06-30 2025-08-14 Dirak Dieter Ramsauer Konstruktionselemente Gmbh Magnetically Coded Lock
US12435544B2 (en) * 2022-06-30 2025-10-07 Dirak Dieter Ramsauer Konstruktionselemente Gmbh Magnetically coded lock
WO2025021495A1 (de) * 2023-07-26 2025-01-30 Dirak Dieter Ramsauer Konstruktionselemente Gmbh Betätigungsvorrichtung mit gesicherter betätigungseinheit
WO2025021493A1 (de) * 2023-07-26 2025-01-30 Dirak Dieter Ramsauer Konstruktionselemente Gmbh Betätigungsvorrichtung mit magnetischer sicherung

Also Published As

Publication number Publication date
DE2123168A1 (de) 1972-11-23
CA957524A (en) 1974-11-12
GB1374599A (en) 1974-11-20
DE2123168C3 (de) 1973-10-18
AU3661371A (en) 1973-06-14
AU465132B2 (en) 1975-09-18
DE2123168B2 (de) 1973-03-29
IT944563B (it) 1973-04-20
FR2139211A5 (enExample) 1973-01-05

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