Abstract: A lock includes a locking bolt (21) and a lock body (32, 33). The lock body (32, 33) has a locking space (43) and aligned bores (37, 38) provided on either side of the locking space (43). The aligned bores (37, 38) received the locking bolt (21). A latch member (14) is provided within the lock body (32, 33) to release the locking bolt (21). A transverse bolt member (10) engages with the latch member (14) and thereby controls operation of the latch member (14). The transverse bolt member (10) is also provide within the lock body (32, 33). User operable locking cylinders (6) are operable on the transverse bolt member (10) to move the transverse bolt member (10) axially. The engagement between the latch member (14) and the transverse bolt member (10) is by way of respective engagement surfaces (15, 12a). One of the engagement surfaces is an inclined surface (12a).

Abstract: A lock for a motorcycle has a generally U-shaped construction. The open end of the U is slipped over the brake rotor of the front wheel or the sprocket of the rear wheel of the motorcycle. A bolt then extends across the open end of the U-12 shape to hold the device in place. This bolt is engaged by a spring loaded pin so as to hold it in position. Rotation of the wheels is then prevented by contact between the lock and the brake calipers on the front wheel or the chain or sprocket on the rear wheel. In order to release the bolt, a cam and a spring biasing the pin in the opposite direction are provided so that rotation of the cam allows the pin to be withdrawn from the bolt. The lock includes a lock-out mechanism which prevents the motorcycle from being started when the lock is in place because the lock-out mechanism retains the ignition key. In addition to the lock, a single loop cable can be provided for attachment about a stationary object and received within a channel in the lock.

Abstract: A lock apparatus including a shackle having first and second joined leg portions and a cross member pivotally connected to the first leg portion for pivotal rotation relative to the shackle, about a pivotal axis. The cross member has an opening for receiving a portion of the second leg portion therein when the lock is in a closed position and a bolt connected to the cross member is operable to selectively releasably engage the second leg portion when the lock is in the closed position. The apparatus further includes a lock position holder including a contact member on the cross member and a detent member on the shackle. The contact member and detent member are engageable with each other such that relative movement between the contact member and the detent member is resisted, to interfere with movement of the cross member relative to the shackle to keep the cross member and the shackle in a position of relative angular orientation.

Abstract: A universal firearm disabling and alarm signalling system is attained by providing a construction which is easily mounted to any firearm to prevent its unwanted use while also incorporating an automatic alarm signal which is immediately activated whenever the protected firearm is accessed by unauthorized persons. By employing the present invention, any movement of the firearm, or attempt to remove the disabling and alarm signalling system of the present invention from the firearm, causes an alarm signal to be continuously generated, preventing any unauthorized or unwanted use of the firearm. In the preferred embodiment, the universal, combined firearm disabling and alarm system of the present invention incorporates lock means cooperatively associated with the alarm signal generator which is quickly and easily mounted to any desired firearm for preventing unwanted use of the firearm and remains in secure locked interengagement therewith until disengaged by the user.

Abstract: A lock mechanism having an engaging member, a sliding member, a fixed member, and a lock rod assembly received within an elongate lock rod housing is provided. The engaging member includes a planar head having a groove formed therein adapted to receive a protuberance extending axially from one end of the lock core. The engaging member also includes a shank portion extending axially from the head through which is formed a bore adapted to receive therein a spring member. The sliding member has an oval shaped axial through opening and a cam surface defined by an undulating annulus having depressed segments and protruding segments. The fixed member also includes an axial through opening and a cam surface defined by depressed segments and protruding segments. The two cam surfaces form a camming interface, whereby the shank of the engaging member is axially advanced and retracted into and out of locking engagement with the lock rod assembly by rotating the sliding member.

Abstract: A lock for incapacitating a motorcycle disk brake has a lock body containing a locking bolt, a braking bolt, and a locking and unlocking device. The lock body is provided with a slot to receive a disk brake piece of a motorcycle. The locking and unlocking device has a rotatable core capable of turning between a locking position and an unlocking position. When the rotatable core is situated at the locking position, the braking bolt is at the third position so as to confine the locking bolt to the second position. When locking bolt is situated at the second position, the slot of the lock body is sealed off so as to cause the lock body to fasten securely to the motorcycle disk brake, which is then disabled. When the rotatable core is at an unlocking position, the braking bolt moves from the third position to the fourth position so as to cause the locking bolt to move from the second position to the first position.

Abstract: A lock for a motorcycle has a generally U-shaped construction. The open end of the U is slipped over the brake rotor of the front wheel or the sprocket of the rear wheel of the motorcycle. A bolt then extends across the open end of the U-12 shape to hold the device in place. This bolt is engaged by a spring loaded pin so as to hold it in position. Rotation of the wheels is then prevented by contact between the lock and the brake calipers on the front wheel or the chain or sprocket on the rear wheel. In order to release the bolt, a cam and a spring biasing the pin in the opposite direction are provided so that rotation of the cam allows the pin to be withdrawn from the bolt. The lock includes a lock-out mechanism which prevents the motorcycle from being started when the lock is in place because the lock-out mechanism retains the ignition key. In addition to the lock, a single loop cable can be provided for attachment about a stationary object and received within a channel in the lock.

Abstract: A simple bicycle lock structure which comprises an outer cylinder and a shackle; one end of the outer cylinder is mounted with a locking assembly, while the other end thereof is mounted with an outer-cylinder-positioning assembly, in which a movable sleeve has a through hole, being perpendicular to a pin hole; the through hole is in communication with a round hole on the outer cylinder. The shackle has a rotary section which is perpendicular to the shackle body; the rotary section includes a circular groove and a symmetrical groove; after the rotary section is inserted in the movable sleeve, a fixing pin will be engaged with the rotary section in a pivotal manner. Other end of the shackle has a locking section with a locking groove and a bevel facet. As soon as the locking section is inserted into a round hole on the outer cylinder, the locking section will be engaged with the locking assembly to become locked up.

Abstract: An improved padlock having a main, generally rectangular case with walls that enclose a locking mechanism, and including a top wall with at least one shaft-receiving bore, and the case having side wall portions that extend upwardly beyond the case top wall and surround the at least one bore, and the top wall having a portion that is shaped for grasping. A latching head is disposed above the main case to which it is connected by at least one shaft extending from the latching head through the at least one bore for lockable engagement with the locking mechanism. The upwardly extending wall portions of the case slidably embrace the outer surface of the latching head to shield the at least one shaft and to guide the latching head in limited vertical movement from a padlock open position, in which a shaped portion of the latching head lower wall is spaced apart from the shaped portion of the case top wall, to a locked position in which these shaped portions are brought together.

Abstract: A plunger type lock has an elongate shank or housing with an enlarged head at one end and at least one lock element movable to project from the housing to engage a grooved or recessed member and lock the same to the housing and to retract into the housing to release the grooved or recessed member, a plunger movable in the housing by a special key to control the position of the lock element and an immovable security rod extending through the plunger and axially substantially to the end of the housing through which the key enters. Due to the presence of the security rod, a special key is required to operate the lock.

Abstract: The lock includes a lock housing mounting a first tubular member. The first tubular member includes a plurality of spring biased pins which are divided into a plurality of sections. An intermediate tube is rotatably received within the first tube and includes a spring biased cam member which has a pin extending through a slot formed in the intermediate tubular member. The pin extends into the first tubular member to inhibit rotation of the intermediate tubular member. An inner tubular member is received in the intermediate tubular member and includes a keyway formed therein. A first key is received into the keyway and coacts with the first segments of each of the pins to enable rotation of the inner tubular member thereby moving the cam surface forwardly and rotating the pin to a second position. Thereafter, a second key is placed in the keyway. The second key coacts with certain segments of each pin to allow rotation of the intermediate tubular member which also carries a pair of shackle releasers.

Abstract: A padlock construction including a body having tine-receiving holes and a shackle having tines insertable in the holes, wherein the body is provided internally with tumbler pins shiftable into and out of intersecting relation with a tine to lock the latter, the padlock body having a slot affording end access to the tumblers to shift the latter out of tine-intersecting relation to open the lock.