Abstract: A retention mechanism having a housing and a member mounted in the housing for movement between the first and second positions. The member has a shoulder formed thereon. A spring yieldably engages opposite sides of the member and the shoulder to prevent movement of the member from the first to the second position. An actuator is provided which includes an element engaging the spring means for moving the spring from a shoulder engaging or latched position to a shoulder disengaging or unlatched position to permit the movement of the member from the first to the second position.

Abstract: An improved bicycle lock, featuring a U-shaped shackle, a cross bar and means for securing one to the other, is disclosed. The means for securing the shackle to the cross bar also functions as a fulcrum, permitting a tilting movement between the two parts, required in assembling and dissassembling them. The means further includes a locking mechanism removably mounted in the cross bar in between the shackle's legs, and features a dead bolt. The cross bar extends beyond the shackle's legs less than twice the diameter of one of those legs, resulting in a compact and sturdy design. A plastic cover encloses at least the cross bar and is preferably formed of two parts slidably fitted over the cross bar, with means for securing the two parts to one another. Preferably, an environmental protection means is provided for the locking mechanism.

Abstract: The principal purpose of this invention is to enhance locking and unlocking mechanisms of a padlock by improving structural components which allow the locking core member to be pushed into the lock body in order to trigger the locking mechanism by forcing locking plate and semi-circular sector thereof to be firmly engaged with locking notch located at the end portions of the U-shaped shackle arms. The unlocking mechanism can be triggered by simply rotating the locking core member with a key in one direction for 90 degrees, causing the locking core member and locking semi-circular sector to be disengaged. Therefore, this invention provides a padlock with improved safety features as well as convenience of ease of use.

Abstract: An improved padlock, and in particular, one having a lock body which has a pivot at one end and a lock mechanism at its other end, a shackle having two legs of equal length where one leg is connected to an elliptical connecting end and the other leg is connected to a notch.

Abstract: A padlock, comprising: a housing formed with a pair of sockets, a shackle receivable in and removable from said sockets and a pair of locking bolts projectable into said sockets for locking the shackle therein and retractable from said sockets to permit removal from the shackle therefrom; characterized in that said housing includes a body member carrying said locking bolt, and a pair of sleeves defining said sockets; said sleeves being removably attached to opposite sides of said body member by fasteners received in said sockets so as not to be accessible when the shackle is locked within said sleeves.

Abstract: A padlock consisting of an elongated lock casing, comprising an inner, solid member and an outer shell fitting over the same. The outer shell is made of a material protected against drilling or the like burglary attempts. The inner, solid member is made of a relatively soft material such as iron or other non-ferrous metal. A U-shaped shackle is adapted to be inserted into the casing and locked by a key-operated, cylinder-type locking device installed at one end of the lock casing.

Abstract: A lock having a shackle and housing in which the shackle is a symmetrical, U-shaped member with spaced, parallel, identically configured legs having free ends, and the housing has a pair of spaced openings in one side thereof for receiving the free ends of the shackle. Either end of the shackle may be inserted into either opening, and detent means are provided in the housing in association with the openings to retain the ends of the shackle in the openings. One of the detent means is fixed and the other has a movable portion to enable the associated end of the shackle to be engaged and disengaged relative thereto. A lock mechanism in the housing is operable to secure the movable detent means against movement to lock the shackle in the housing. In one form of the invention, a reinforcing sleeve is placed around the housing in the area of the lock mechanism to prevent damage to the housing and lock mechanism.

Abstract: A locking device particularly useful for locking a motorcycle, bicycle or other movable object to a fixed object, comprises a shackle including a pair of rigid, cylindrical bars of strong material pivotally mounted to each other at one end and terminating opposite to the pivotal mounting in a pair of free, inwardly-bent, straight end. The free inwardly-bent ends of the bars are a small fraction of the length of the remainder of the bars and are joined thereto by integrally formed angled junctures. The locking device further includes a locking mechanism enclosed within a housing formed with a pair of openings for receiving the free ends of the shackle bars thereby to lock them to the housing.

Abstract: In the case of a long shackle lock, the end portions of the lock shackle are inserted into housings in a lock body. When this happens, they act on lock control sleeves pushing them out of a lock influencing position into a lock releasing position. The lock bolts move into the engaged position, i.e. in engagement with engagement surfaces on the end portions. The lock cylinder which controls the lock bolts moves into its basic position. The key can be withdrawn. To undo the lock, the lock cylinder is turned into a lock opening condition by the key which will then have been re-inserted. When this happens, the lock bolts are retracted into a disengaged position. The control sleeves then push the end portions at least partially out of the housings. The control sleeves move into the bolt influencing position. Therefore, the lock bolts remain in the disengaged position until the end portions are again inserted into the housings (FIG. 1).

Abstract: A padlock having a "U" shaped shackle, a main body having an opening to receive at least one leg of the shackle, the main body having an interior which defines a recess within which a lock bolt body can be threadedly admitted, the lock bolt body having one catch to engage at least one leg of the shackle. A key rotates the lock bolt body between a locked, an unlocked, and a disassembled position.

Abstract: A padlock having a "U" shaped shackle, a main body having an opening to receive at least one leg of the shackle, the main body having an interior which defines a recess within which a lock bolt body can be threadedly admitted, the lock bolt body having one catch to engage at least one leg of the shackle. A key rotates the lock bolt body between a locked, an unlocked, and a diassembled position.

Abstract: A lock is provided for use on outdoor gate structures. The lock is of rugged, durable construction, intended to resist malfunction due to weather factors, and amenable to repair and change of keys. The lock is comprised of a sturdy metal housing having a bolt that moves between front and rear extremities of the housing in sliding engagement with front and rear apertured transverse walls. A padlock fits within the rear extremity of the housing, and its presence prevents rearward movement of the bolt to the opened state of the lock.

Abstract: A lock and trick device particularly designed for mounting to a skateboard in order to lock the skateboard to a fixed structure such as a bicycle rack or post, wherein the device comprises a lock body member which is fixedly mounted between the board of the skateboard and one of the wheel truck assemblies, the lock body being provided with a pair of oppositely disposed longitudinal bars to receive leg members of an adjustable U-shaped shackle, the looped end of which is bent at right angles to the legs thereof, thereby forming a trick handle.

Abstract: A multi purpose lock device is provided to be used with a hanger and other items such as a flashlight, radio, tape recorder, first aid kit, exit light, piggy bank, clock and smoke alarm or burglar alarm. The lock consists of a housing affixed to one of such items and a shackel which can be locked around any suitable pole, abutment, doorknob or the like.

Abstract: A safety lock apparatus for an electrical plug is provided which is preferably an integral one-piece plastic member having no moving parts. The apparatus cooperates with a padlock to render the prongs of the plug generally inaccessible within a block of plastic and the plug body is secured by the padlock to the block and/or to a shelf upon which the plug body is seated, a portion of the shelf being received between the padlock body and shackle of the padlock.

Abstract: A pick-proof u-bolt type lock is disclosed with an untypical location for containing its cylinder lock. A tube, comprising a housing, has openings near its ends that accept the ends of a shackle which are secured within that housing. A cylinder lock is located between the shackle openings and an access port is provided to it for insertion and withdrawal of the key. A matching port on a collar that rotates around the housing is positioned to shut off that access, or to allow it selectively.Cooperating parts attached to, and effecting the operation of the lock, work to make the lock inoperable while access to the keyhole is available; and allow normal function of the lock when rotation of the collar prevents access. The key is not turned by finger grip, but instead, affecting the closure, turns the key and plug operating the cylinder lock and releasing the shackle at one end. The remaining end is freed as it swings clear of a securing pin in the other end of the housing.

Abstract: A locking device for securing a bicycle or the like to a post or other fixture. The locking device features a replaceable lock cylinder, which in turn allows for both replacing merely the lock cylinder when the keys get lost and also allows for conforming the lock cylinder of the device to an identical lock cylinder used in the owner's home so that one key, preferably a flat key, services both the device and the home. The lock cylinder cannot, however, be removed when the device is locked and in use. The key, on the other hand, can only be removed when the device is locked.

Abstract: A lock device of the type for use for locking engagement with a drive chain of a vehicle, such as a bicycle, motorcycle, moped or the like, which includes a locking plate member having at least one elongated locking pin element and with an outer protective flange-like shield for locking and unlocking the chain upon actuation of a keylock mechanism.

Abstract: The eyelet opening of an eyelet-type trailer hitch is intercepted by a plug comprising two cap sections of sufficient size to overlie the opposite ends of the eyelet opening without passing through, each section mounting one component of a padlock in which the bail component is completely removable from the padlock body component. Secured to each cap section is a shielding sleeve surrounding the associated padlock component and configured to extend into the eyelet opening. When the padlock components are put into locking engagement through the eyelet opening, the cap sections are releasably secured together to block said opening against the insertion of an associated latch component of the hitch.

Abstract: The present invention comprises a locking device and, more particularly, a security bracket, finding particular application for bicycles and the like with brake handles. The security bracket comprises a small U-shaped shackle and a member which is slidable thereon and a lock. In use the brake handle of the bicycle is locked by the shackle in a position which urges the brake handle toward the bike handle to thereby apply braking pressure to the bike until the shackle is unlocked.

Abstract: A lock arrangement for application to a brake disc of a motorcycle wheel.

Abstract: Tamper-free exterior lock apparatus to affix to a door for maintaining latched engagement to the door's frame. Two sets of shackles, one pair fixed to a backing plate and the other insertable with respect to a lock housing, engage, respectively, a primary lock and a secondary lock so that no portion of the shackle is exposed when coupled with its lock. Primary lock guards protrude from the lock housing to restrict access to the primary lock. A slide bar having a latching portion at one end and a lip portion oriented perpendicular to the main portion of the slide bar at the other end is maintained in slidable relationship to the backing plate and housing to allow the movement of the lock apparatus from its latching position to its open position and to block the slide bar from movement when either or both of said locks is engaged to its set of shackles.

Abstract: A padlock has a body having a central portion and two axial end portions. Two drums are rotatable received in two axial holes in the end portions and have engaging members and through-going holes. A shackle is insertable and withdrawable from transverse holes of the end portions of the body. The central portion of the body has through-going holes arranged to coincide with the through-going holes of the drums in respective circumferential positions of the latter. The springs are accommodated in the through-going holes of the central portion of the body. Inner pins are located axially outwardly of the springs at both sides thereof. Outer pins are located axially outwardly of the inner pins. The outer pins insertable in the through-going holes of the different drums have differing lengths. Two keys having projections of differing length are provided.

Abstract: A bicycle lock mountable on the frame of a bicycle and including a body which stows a "U" or "J" shaped member and a cable or other flexible securing mechanism when not in use. Both are removable from the body with the "U" or "J" shaped member movable into a position encircling a rim of a wheel on the bicycle to prevent it from movement. The cable or the like is movable to encircle a support to which the bicycle may be locked. The cable terminates one end in the body of the lock and the other end in the "U" or "J" shaped member. An integral lock holds the "J" shaped member in fixed relationship with the body and covers or conceals the mechanism securing the body to the frame and bicycle. A retraction mechanism maintains the cable within the body except to the extend withdrawn for locking purposes. In alternate embodiments the cable encircles the lock body for storage. An integral mounting bracket is illustrated as well as a permanently mounted bracket used with a removable lock assembly.

Abstract: A padlock device including a unitary, elongated, cylindrical metal body having spring loaded shackle elements extending into one end thereof and a key-locking cylinder assembly extending into the other end. Rounded recesses are formed along the sides of the cylindrical body and the shackle pin holes are arranged so that the pins respectively extend through the recesses. The locking cylinder includes a pawl mechanism which engages notches in the ends of the shackle pins for locking the pins in the closed position.

Abstract: A double contact padlock is provided wherein the locking pin thereof replaces the cam and pins of conventional padlocks and further engages both arms of the padlock shackle to form a high strength padlock. The locking pin bridges the shackle arms and axially rotates into and out of engagement therewith. In a preferred embodiment the locking pin rotates into slots in the shackle arms to secure the shackle. The padlock of the invention can be employed to lock structures, equipment and vehicles including cycles.In another embodiment of the invention a padlock is provided wherein the upper or arch end of the shackles is of greater width and the lower portion of the shackle is narrower in width near the lock housing, to provide a protective shackle arm overhang at the locking spindle end of such lock housing.Additionally, a bracket is provided which tightens around the fixed column of, e.g. a steering wheel of a vehicle.

Abstract: A light-weight type lock having a body assembly and a pair of detachable hasps which protrude from opposite ends of the body. The body is box-like in form with movably related cover and configured body, securable together by keylock operation. The hasp ends are captured between the inner body configuration and the outer body when locked in assembly. In particular embodiments the hasps may be flexible members such as chains, or may be rigid "U" shaped members, either entirely releasible from the body assembly or releasible at one end of the hasp, and the outer and inner body members may slide or may pivot relative to each other to secure and to release the hasps, providing either alternative or simultaneous hasp release.

Abstract: A lock formed of a bar and a shackle whose legs extend into transverse holes formed in the bar. A rotatable bolt extends within and is completely concealed within the bar and overlaps the leg portions located within the bar. Aligned notches in the legs and bolt permit the bolt to be rotated into a position wherein peripheral portions thereof extend within the leg notches for locking the legs within the bar, and to a second position wherein the bolt notches align with the legs for transverse movement of the legs relative to the bar for unlocking. Locking means arranged within the bar permit selective manual rotation of the bolt. The shackle and bar may be formed of a saw resistant material to form a closed, saw resistant loop.

Abstract: A lock, for use on motorcycles, bicycles, truck vans and the like, and which comprises a U-shaped shackle member having a long arm and a short arm. A releasable locking arm is adapted to be releasably locked to said long arm by a cylinder lock means, and in a position parallel to said long arm and in alignment with said short arm.

Abstract: An improved coin-receiving apparatus for vending machines is described which provides a tamper-proof locking mechanism in combination with a pivotally-detachable front panel for easy access to the coin-receiving station.

Abstract: .[.A locking bar adapted to cooperate with a shackle of a padlock, which locking bar comprises a shackle-receiving orifice and an abutment provided on the surface of said bar, the arrangement being such that with the padlock secured to the bar by means of a padlock shackle passing through said orifice, the abutment is adapted to engage with the body and/or shackle of the padlock to restrain substantial rotation of said padlock about the orifice in said bar..]..Iadd.An improved padlock construction having a body defining an upper surface and a bottom surface. Access to a locking mechanism is provided through the bottom surface, while the top surface is designed so that the body can receive a shackle and portions of locking bars in locking engagement. To achieve this purpose a cruciform-shaped depression is provided in the top surface, which depression extends downwardly into the padlock body.