Abstract: A security lock system for a fifth wheel hitch is system that restricts access to the connection between a fifth wheel hitch and a truck bed. The system includes a receiver lock, a fifth wheel hitch, a first sleeve, a second sleeve, a lock engagement channel, and a key. The receiver lock shields a securing mechanism of the fifth wheel hitch. The receiver lock connects with a base frame of the fifth wheel hitch through the lock engagement channel. The first sleeve and the second sleeve uphold the receiver lock against the lock engagement channel. A retractable locking bolt and a locking assembly are connected to each other with the key. The retractable locking bolt and the locking assembly remain stationary as the retractable locking bolt includes a first tubular body and a first stopper, and the locking assembly includes a second tubular body and a second stopper.

Abstract: A modular electrical safety assembly for use with a control device of an electrical equipment includes a magnet housing with a magnet, an equipment cover, and a slider. The magnet housing includes a magnet to selectively couple to the electrical equipment. The magnet induces an attraction force on the electrical equipment. The equipment cover is coupled to the magnet housing and configured to prevent operation of the control device. The slider is configured to translate along a surface of the equipment cover between a first position and a second position. In the first position it prevents a change in polarity of the magnet. In the second position it permits a change in polarity of the magnet. The slider and equipment cover lock together to selectively restrict translation of the slider.

Abstract: A security device for a handle of a door or a window for protecting against unauthorized actuation has a cover enclosing in a mounted position the handle. A lock is provided that secures the cover on the handle in the mounted position and releases the cover from the handle for removing the cover from the handle. The cover has at least two locking elements. Counter members are disposed on the handle, a handle fixture, a door, or a window, and are matched and interact with the at least two locking elements. One of the locking elements is a locking bar of the lock.

Abstract: A lock includes a movable unit and a lock core structure including a restriction unit and a lock core. The restriction unit has a passage penetrating therethrough to form a first opening and a second opening on two opposite sides of the restriction unit. An extension wall is formed in the passage to face the second opening. The lock core is disposed in the passage to couple with the restriction unit and is selectively movable relative to the restriction unit in an axial direction. The lock core has an end face facing the extension wall and an extension portion disposed on one side of the lock core close to the first opening and selectively protruding outside the first opening. The movable unit selectively contacts the lock core and is able to reciprocally rotate, wherein rotation of the movable unit is linked to axial movement of the lock core.

Abstract: A lock structure for an electrical device is provided. The lock structure includes a rotatable fastener, a lock body, an operation device, and a housing. The lock body is disposed at least partially in the housing, connected with the operation device, and includes or couples with a driving portion. When the lock body is operated to achieve an unlocked state, the lock body allows the driving portion to move the rotatable fastener. At the same time, the operation device achieves an operable status in which the operation device can move driving portion to change the orientation of the rotatable fastener, resulting in the connection/detachment of the lock structure and the electronic device. When the lock body is in a locked state, the movement of the driving portion is restricted and the operation device is not operable to directly or indirectly rotate the rotatable fastener, resulting in the secure connection of the lock structure and the electronic device.

Abstract: A lock structure for an electrical device is provided. The lock structure includes a rotatable fastener, a lock body, an operation device, and a housing. The lock body is disposed at least partially in the housing, connected with the operation device, and couples with a driving portion. When the lock body is in an unlocked state, the lock body allows the driving portion to move the rotatable fastener. Simultaneously, the operation device can move the driving portion to change the orientation of the rotatable fastener, resulting in the connection/detachment of the lock structure and the electronic device. When the lock body is in a locked state, movement of the driving portion is restricted and the operation device cannot directly or indirectly rotate the rotatable fastener, resulting in the secure connection of the lock structure and the electronic device.

Abstract: A locking device is adapted for receipt within the main cavity of an underground enclosure. The locking device includes a container having a main body and a container top which define an interior compartment for holding the items of the underground enclosure. The main body is adapted to be assembled in the main cavity of the underground enclosure and is sized to be retained within the underground enclosure. The container top has a selective open position to allow access to the interior compartment of the main body and a selective closed locked position to deter access thereto. An arm assembly coupled to the container top is moveable between an extended engaged position to retain the container top on the container and a collapsed disengaged position to allow release of the container top from the container.

Abstract: A magnetic system for the unlocking of padlocks and locks including, a lock-cover element which together with a component fixed to a fitting allows or disallows access to a keyhole. A unlocking-key element which has the function of blocking or unblocking the lock-cover element.

Abstract: A handle assembly for a vehicle is provided that includes a handle body that is attached to the vehicle door. A key cylinder is mounted to the handle body and is operable to manually lock and unlock the vehicle door. A cover is provided that is movable between a covered position that hides the key cylinder from view and an open position that exposes the key cylinder. The cover can slide or pivot between the open and closed positions. The cover protects the key cylinder from the elements and improves the overall appearance of the vehicle door.

Abstract: A lock assembly includes a plurality of lock devices and a locking chain. Each lock device includes: a lock housing unit including upper and lower lock housings respectively formed with a rod hole and a jaw hole; a jaw actuating unit including a jaw actuator operable to move between locking and unlocking positions, and an urging member for urging the jaw actuator to the locking position, the jaw actuator having a ring portion and an operating rod extending through the rod hole; and a jaw unit including two locking jaws each having a hooking section that extends out of the jaw hole and an opposite force bearing section, and two biasing members for biasing the force bearing sections toward each other. The locking chain is extended removably through the positioning rings and the ring portion of each of the lock devices.

Abstract: A lock device includes a lock housing unit, a jaw actuating unit, and a jaw unit. The lock housing unit includes an upper lock housing formed with a rod hole, and a lower lock housing formed with a jaw hole. The jaw actuating unit includes a jaw actuator operable to move between locking and unlocking positions, and an urging member for urging the jaw actuator to the locking position. The jaw actuator has a ring portion disposed adjacent to a positioning ring of the upper lock housing, and an operating rod extending through the rod hole. The jaw unit includes an overlapping pair of locking jaws received in the lower lock housing and each having a hooking section that extends out of the jaw hole and an opposite force bearing section, and two biasing members for biasing the force bearing sections of the locking jaws toward each other.

Abstract: A telltale device (10), securable to a padlock (18) having a key-operated release mechanism, includes a seal (12) to seal a key (20) for the padlock (18) in a lock position in the padlock release mechanism such that removing the key (20) or operating the key (20) to open the padlock (18) damages or destroys the seal (12).

Abstract: A keyway plug that discretely provides a device for preventing a person from unlocking a tumbler lock even if the correct key is used. The present invention includes a plug member that is sized to fit entirely within a keyhole and is effective to block a key from being completely inserted into the keyhole. The plug may be removed from the keyhole through use of an extraction tool having a magnet which attracts the plug and magnetically couples the plug to the extraction tool when the tool comes into contact with the plug.

Abstract: A lock-picking prevention apparatus is adaptable to a lock (120) having a lock hole (121) and an abutment driver pin (122) for restricting and releasing a key. The apparatus includes a locking body (102) having a front end abutment hook (102d) abutted by the abutment driver pin (122) when the lock-picking prevention apparatus is inserted into the lock hole (121) so as to bury its internal space, an operating bar (102) provided so as to slide over the abutment driver pin (122) to provide guidance, and a new key (110). At the time of unlocking using the new key (110), the operating bar (103) pushes in the abutment driver pin (122) to release the abutment of the front end abutment hook (102d) so as to enable the locking body (102) to be pulled out. The lock-picking prevention apparatus brings about a situation which is equivalent to a plurality of locks being provided.

Abstract: A lock-picking prevention apparatus is adaptable to a lock (120) having a lock hole (121) and an abutment driver pin (122) for restricting and releasing a key. The apparatus includes a locking body (102) having a front end abutment hook (102d) abutted by the abutment driver pin (122) when the lock-picking prevention apparatus is inserted into the lock hole (121) so as to bury its internal space, an operating bar (102) provided so as to slide over the abutment driver pin (122) to provide guidance, and a new key (110). At the time of unlocking using the new key (110), the operating bar (103) pushes in the abutment driver pin (122) to release the abutment of the front end abutment hook (102d) so as to enable the locking body (102) to be pulled out. The lock-picking prevention apparatus brings about a situation which is equivalent to a plurality of locks being provided.

Abstract: A commercial washer and dryer coin box guard adapted for receipt in a coin box frame. A coin box is slidably received inside the coin box frame, which is part of a coin box housing. The coin box housing is part of a washer or drier. The coin box guard is designed to prevent unauthorized entry into the coin box and stealing coins found therein. The guard includes a face plate dimensioned for covering the front of the coin box frame. The face plate has one or more flanges on the sides thereof for engaging a portion of the sides of the front of the coin box frame. One of the sides of the coin box frame has a frame hole therethrough. The frame hole in the side is indexed with a flange hole in one of the flanges. The frame holes in the side of the coin box frame and the flange are adapted for receiving a hasp of a padlock for securing the face plate to the front of the coin box frame.

Abstract: A lock for a computer has a housing, a core pivotally mounted to the housing, a latch formed on and extending out of the core, a rod coupled to the core. The rod has a flange end and a pair of pins extending from the flange end. A spring is disposed around the rod to provide a resilience to the pins, and a cable is pivotally connected to the housing. A case of the computer has a latch chamber and an entrance communicates with the latch chamber to allow the latch and the pin to enter the latch chamber through the entrance.

Abstract: A keyhole barrier system for use with tumbler locks containing a keyway and a plurality of tumblers. The system contains a keyhole block having both retention and signaling portions. The retention portion prevents removal of the keyhole block from the lock by providing a locking surface for the lock tumblers. The signaling portion extends outwardly from the keyway preferably substantially parallel to the retention portion. The system can further include an extractor having both insertion and handle portions. The extractor facilitates removal of the installed keyhole block by raising the tumblers locked against the keyhole block. Further, the handle portion and the signaling portion can form a retraction aid to facilitate removal of the system from a keyway.

Abstract: A keyway plug that provides a means for preventing the correct key from opening a tumbler lock, including a plug and an extractor. The plug fits into the keyway to block complete insertion of a key. An arm extends from the tip of the plug across the tumblers, but is short enough so that the outermost tumbler drops to hide the plug. The extractor includes a narrow finger, the end of which pushes the innermost part of the plug upwardly, while the tumblers push the outermost part of the plug downwardly. A chamfer at the outer end of the plug arm pushes the outermost tumbler up out of the way so the plug can be removed. The upper edge of the finger includes a hook that mates with a matching notch in the lower edge of the plug arm. As the extractor is removed, the hooks and notch interlock, pulling the plug from the keyway.

Abstract: A keyway plug that provides a device for preventing the correct key from opening a double-sided tumbler lock, including a plug and an extractor. The plug fits into the keyway to block complete insertion of a key. In one embodiment, a pair of arms extend from the tip of the plug across both rows of tumblers, but is short enough so that the outermost tumblers drop to hide the plug. In the second plug embodiment, the outermost tumblers drops into a notch in the arms to prevent the plug from going too far into the keyway. Alternatively, only one arm has a notch. The extractor includes a narrow finger, each edge of which include a hook that mates with a matching hook in the inner edge of each plug arm. As the extractor is removed, the hooks interlock, causing the plug to be removed.

Abstract: A new keyless door knob security device with stabilizer arm for preventing access to a keyhole of a door knob to prevent unauthorized access. The inventive device includes a central shaft that has first and second ends and a longitudinal axis extending between the ends. A claw ring has a plurality of claws extending outwardly from it and an aperture through it. The central shaft extends through the aperture of the claw ring. The claws are adapted for grasping the door knob. A cover is slidably positionable along the central shaft such that sliding the cover in a first direction presses the claws towards each other such that the claws grasp the door knob. Sliding the cover in a second direction permits the claws to move apart from each other. A locking mechanism permits selective locking of the cover in a locked orientation and an unlocked orientation.

Abstract: A keyway plug that provides a means for preventing the correct key from opening a tumbler lock, including a plug and an extractor. The plug fits into the keyway to block complete insertion of a key. In one embodiment, an arm extends from the tip of the plug across the tumblers, but is short enough so that the outermost tumbler drops to hide the plug. In the second plug embodiment, the outermost tumbler drops into a notch to prevent the plug from going too far into the keyway. The extractor includes a narrow finger, the upper edge of which includes a hook that mates with a matching hook in the lower edge of the plug arm. As the extractor is removed, the hooks interlock, causing the plug to be removed.

Abstract: An anti-theft device has a substantially cylindrical body composed of two semi-cylindrical shells, and structure for hingedly connecting the shells with one another at one circumferential end so that the shells are turnable between an open position in which the other circumferential ends of the body are spaced from one another and a closed position in which the cylindrical body is arranged on a steering column and the other ends of the shells are locked with one another, the cylindrical body being formed so that it completely covers the ignition lock in the closed position so that an unauthorized person can not get access to the ignition lock, and structure for locking the other ends of the shells in the closed position.

Abstract: A lockable doorknob enclosure for use on doorknobs of the type having a knob attached to a shaft having a longitudinal axis. The lockable doorknob enclosure comprises: a containment structure having a sealable cavity for enclosing the doorknob and a portion of the shaft; an adjustable spacing mechanism; and a locking mechanism. The containment structure includes first and second pivoting structures which are preferably connected by a hinge. The first and second pivoting structures form a containment cavity of a size sufficient to receive therein the doorknob and a portion of the shaft when the pivoting structures are pivoted into a first, or closed, position. The containment structure has an aperture therethrough of dimensions sufficient to allow the shaft to be installed through the aperture when the first and second pivoting structures are pivoted into a second, or open, position.

Abstract: An apparatus for secure positioning over and around a steering wheel and steering column to prevent theft. The apparatus comprises a plate positionable over the top of a central part of a steering wheel having a steering column with laterally extending rods for turn signals and the like. The plate has a short post extending downwardly from one edge thereof with an upper end pivotally secured about an axis with respect to the plate and with the lower end having an inwardly projecting leg. The plate also has a long post which extends downwardly from a second edge of the plate diametrically opposite from the first edge with an upper end pivotally secured about an axis with respect to the plate about an axis parallel with the first axis and with a lower end having an outwardly projecting leg. The apparatus further includes a first housing half and a second housing half positionable around the steering column beneath the steering wheel.

Abstract: An anti-theft device for a vehicle that includes a combination of a steering wheel lock and an ignition cover to prevent access to the ignition and to prevent use of the steering wheel or access to the steering wheel center hub when the device is in place. The purpose of the device is to prevent the theft of an automobile or truck utilizing the device.

Abstract: A device is disclosed for locking the key ignition of a vehicle. The device includes braided cables encased in neoprene rubber, and a recess is provided at the midpoint of the length of these cables. A locking housing is basically cylindrical in shape and includes a combination lock in its center section while the ends of the housing are flared angularly outward and have two through holes which serve as receptacles for the cables. Finally, ratchet-like teeth are arranged along the length of the cable, and two spring loaded engagement levers are located in the cable receptacles within the housing. The cables fit around the steering column of a vehicle with the recess placed over the key ignition. The locking housing receives the cables in the through holes and is locked in place by the combination lock.

Abstract: A theft protection collar is provided for a motor vehicle having a steering column with an ignition switch and shift lever and consists of a bracket which is removably connected and located to the steering column. The bracket covers and protects the ignition switch and retains the shift lever to prevent the unauthorized operation thereof.

Abstract: The present doorlock closure secures existing doors having conventional doorknobs against entry by enveloping the doorknob with opposed cavity compartments of knob confining segments. Upper and lower housing segments are hinged together such that they may mount elements which form a cam-lever, segment interlocking assembly. The assembly includes a spring-loaded latch and lockable latch lever in the upper segment and a corresponding cam latch release in the lower segment. The housing segments themselves are hinged together for facile clamping upon the doorknob of a door, securing it against entry by persons having a passkey to the doorknob which retains a turnkey lock therein.

Abstract: A door lock security device is disclosed for locking over the shaft of a door lock rotary knob or a door knob. The device comprises an inner cover which is further comprised of first and second shell portions having an opening between them for closing around the shaft of the door lock rotary knob or door knob, an outer cover which substantially encompasses and overlaps the inner cover to sufficiently shield the inner cover to prevent tampering, and a lock for releasably securing the outer cover to the inner cover. When the inner and outer covers are engaged together around the shaft they prevent the door lock rotary knob or the door knob from being manipulated from a closed to an open position. In one embodiment the first and second shell portions of the inner cover are hingedly attached along one edge while in a further embodiment the first and second shell portions are releasably secured together in a closed position at an opposite edge by a clasp.

Abstract: A steering lock with a lock body having an attached extensible member for adjusting the distance between two locking rods which are connected in parallel through a telescopic tube to form a shackle. The shackle can be extended when clearance is required, and is coupled with a pair of hook-shaped fastening rods which are connected in parallel through another telescopic tube for fastening to the steering wheel. When a lock barrel of the lock body is rotated to a locking position, the first and second latches inside the lock body lock up the locking bars and the extensible member. Two protective cover boards are bilaterally attached to the lock body to prevent insertion of a tool to cut the second latch and prevent injury to fingers during the locking and unlocking operation.

Abstract: A lockable cover for the keyway of a cam-type lock, including an annular skirt attached to the body of the cam lock adjacent the inward end of the front-key way end of the lock. There is locking means for engaging the annular skirt, which locking means is generally rectangular and has a front wall with an aperture therein sufficient to accommodate the annular skirt adjacent which aperture there are latching heads of the lock which have an open configuration in which they are spaced apart sufficiently to receive the periphery of the annular skirt and a locked configuration in which the shaped latching heads are brought together to lockably embrace the annular skirt thereby covering the keyway portion of the lock.

Abstract: An anti-theft steering column cuff device for automobiles and the like is provided and consists of two box shaped casings which are removable connected and locked to the steering column in which one of the casings covers and protects an ignition switch to prevent an unauthorized person from operating the ignition switch.

Abstract: The present invention entails a doorknob security device for preventing access to the outer surface of the doorknob and particularly to a keyhole or other locking and unlocking mechanisms formed about the surface of the knob. In particular, the security device of the present invention comprises an outer main housing and a rotatable inner closure panel. The inner closure panel is rotatable from a closed to an open position. In the open position the security device easily accepts a doorknob. In the closed position the security device encompasses and closes the doorknob preventing access to the same.

Abstract: A door lock for placement on a door handle having a knob with a front face having a keyhole therein. The door lock comprises a tubular casing substantially closed at one end by an end wall member and open at its other end for enabling the casing to be placed on the handle in a position wherein the knob is disposed in the casing with its front face adjacent the end wall member. The tubular casing has an inside radial dimension sufficient to permit the casing to rotate freely on the knob. A locking lever is pivotably connected to the casing generally adjacent its open end to permit the lever to swing between a non-obstructing position wherein the casing may be placed on the door handle and removed from the door handle, and an obstructing position wherein the lever obstructs the open end of the casing and is engageable by the knob when the casing is on the handle for preventing the casing from being pulled off the handle.

Abstract: A protection device useful for preventing access to a cylinder key lock on a lever handle handle door lock incorporates a first and second half which are joined together along a junction to form a united body. The united body has a closed bottom wall and a substantially circular circumferential wall as well as a top wall. Locking means are adapted to the body to secure the first and second halves together. The top wall includes an opening partially formed in one of the halves and formed in further in the other half. The opening is sized and shaped to fit around the shank portion of a lever handle door lock. The device further includes a rectangular opening in the circular circumferential wall which is located such that its elongated dimension is essentially parallel to the top wall.

Abstract: A portable steering column locking apparatus in two pieces for surrounding the steering column of an automotive vehicle and specifically enclosing the ignition switch and the skin of the steering column beneath which the ignition control rod is located. The cylinder operates in a bolt wing and a striker wing part that cannot be pried apart because of housing projections fitting respectively within side recesses in the wings. The locking cylinder has a carbon steel crosspiece deadbolt operating within an internal "F" groove in the bolt wing and therefore cannot be defeated by common tools used to extract cylinder tools. The hinge of the housing pieces is sealed by welding against access.

Abstract: A safety armature for a cylinder having a key aperture or keyway, comprises a safety element which is in the form of a magnetically encodeable closure which can be opened by a magnetically coded disk and, which, in its locked position, covers the key aperture or keyway. The magnetically codeable closure may either be a magnetically encodeable padlock having a steel shackle which is held between guide disks of a guide element on the safety armature, or a solidly mounted mounting with a slide unit which is movable on the mounting and that can be latched by means of the magnetically encodeable enclosure.

Abstract: A barrel lock assembly for use in securing a lock housing over the latch or access point of a securable enclosure, such as a utility meter box, is disclosed, having a bar member with a stop on the distal end for engaging a surface on the lock housing or on the enclosure to be secured. A second bar member is disposed parallel to the first and has a head portion which receives the proximal end of the first bar member. The head and the first bar member have axially aligned apertures for receiving a suitable padlock and holding the assembly together.

Abstract: This invention provides a method and apparatus for preventing an ordinary door knob from being rotated, thus preventing the plunger-type bolt from disengaging from the striker plate and plunger pocket in the door jamb. The apparatus is attached to the shaft of the door knob on the deepest side of the door jamb. Once secured in place by the locking mechanism, enclosing all but the shaft of said door knob, its shape and design will prevent any effective rotation of the apparatus, or the door knob, due to its proximity to the door jamb nearest the door knob.

Abstract: The subject invention is a door lock security device adapted to provide a means for preventing a doorknob lock from being opened by a master key or other means through the keyhole while the room is locked from the outside, such device comprising a cover member to envelope and otherwise cover a doorknob of the type which has a locking mechanism integrated therein. The subject covering device comprises a circular ring member comprising two separate retractable members, which are pivotably mounted to one another at a common point about which they can retract or close relative to one another. The circular ring member is adapted to encircle the doorknob in a peripheral manner and is provided with a solid frontal portion to cover the key insert. The solid frontal portion is adapted to fit securely against the outer extremity of the doorknob in which the key slot is structured so as to prevent one from inserting a key or other object into the key slot while it is so covered.

Abstract: An automobile security device for protecting an ignition lock mounted in an automobile steering column. The device includes a hollow cover to fit over the lock on the steering column, and a flexible tension-bearing element, preferably a link chain, for securing the cover to the column. The element is selectively engaged by a bolt mechanism linearly displaceable by a cam the cam in turn mounted on and rotatable with the rotatable element of a lock mounted in the cover.

Abstract: A protection device of the type useful for preventing access to a padlock or small combination lock as well as serving as a container for keys, incorporates a first and second half which are joined together along a junction to form a united body. The united body has a closed bottom wall and a substantially circular circumferential wall as well as a top wall. Locking means are adapted to the body to secure the first and second halves together. The top wall includes an essentially elongated opening formed partly in one of the halves and formed in the remainder in the other half. The opening is sized and shaped to allow exposure of the shank of a padlock or combination lock from the body while retaining the body of the padlock or combination lock within the hollow interior of the united body as well as retaining a bulbus member attached to an exposed U-shaped member.

Abstract: A detachable guard or cover for preventing access to the keyhole of cylinder type locks in the face of a wall or locked door of a tool cabinet is combined with openings in the wall on each side of said keyhole. The guard comprises a generally U-shaped body having a pair of anchor legs joined at one end by a shouldered rivet. The free terminal end of each leg has a right angular tongue which fits into one of the openings in the wall when the guard straddles the keyhole to anchor the guard against the rear face of the wall. A locking leg journalled on the rivet fixes the guard when in closed position. The anchor legs and the locking leg have holes, which register when in closed position, to receive the shackle of a padlock. Alternatively, a lock set or cylinder lock may be built in to the anchor legs, with its pawl positioned to immobilize the locking leg until turned by a key to unlock.

Abstract: Disclosed is an auto anti-theft ignition switch lock for preventing unauthorized access to the ignition switch which is mounted on the steering column of most conventional automobiles. The ignition switch lock includes a housing, one end of which is shaped to conform to the contours of a steering column, having a latched enclosure member which is shaped to adapt to the column for securement of the device to the steering column. The device further includes a housing and a movable access door therein which is shaped to conform to the contours of a pair of long narrow uniform furrows which is manifested beneath the surface of a pair of interior walls within the housing, stops, guide surfaces and a key operated latch for selectively controlling the movement of the door, which moves along in constant frictional contact with the smooth surface of the pair of hollowed out furrows.

Abstract: A barrel lock sleeve for snap-mounting in a keyway aperture of a door for use in lockably blocking the keyway for security purposes. The sleeve is fixed in the door aperture by the insertion and locking of a conventional barrel lock within the sleeve. The sleeve includes means for permitting the outside diameter of a forward portion of the sleeve to be resiliently compressed so that the sleeve can be snapped into the door aperture.

Abstract: A cup with a saddle-shaped open end fits on a steering column over the ignition switch and forms a support bracket for the ends of a cross-chain of T-configuration, whereby one chain portion goes from one side of the cup around the column and the second chain portion goes from the crossing first portion over a steering wheel spoke, both chain portions ending at and lockably securable to the other side of the cup, to provide a removable device for securement of both the ignition switch and the steering wheel of the motor vehicle.

Abstract: Disclosed are two anti-theft locks for preventing access to the ignition switch which is mounted on the steering column of most conventional automobiles. The said locks include a housing, one end of which is shaped to adapt to the outline of a steering column, and one of the said locks further includes an anti-pick lock device thereupon, moreover the said locks include a pair of movable arms therein, which is coupled to a movable element mounted within the housing and means for selectively controlling a pair of movable latches which may be shifted simultaneously in an impenetrable clutching posture with and locked around the rotatable portion of the ignition switch. At the position specified the device would be fitted over and secured to the steering column.

Abstract: Apparatus for securing a doorknob against unauthorized entry. A shroud fits over the entire doorknob and its associated shaft, and extends to fit on or over the rose through which the shaft extends. A clevis fits through slots in the shroud to retain the shroud in place on the door knob and shaft. The present apparatus can be used to retrofit a lock onto an existing knob which has no locking structure, and also prevents tampering or unauthorized access to an existing built-in lock cylinder of a doorknob.

Abstract: An antitheft guard for an ignition switch comprises a housing adapted to overlie the ignition switch, the housing comprising a cylindrical cup-like section closed at one end and shaped at the periphery of the open end to conform generally to the contour of the steering column. The housing is held in place by hinged arcuate sections adapted to encircle the steering column. The arcuate sections and the periphery of the cup-like section may be padded to prevent marring of the steering column. A portion of the housing and one of the arcuate sections cooperate to permit a padlock to retain the assembly securely in place on the steering column.