Abstract: A locking nut assembly comprises an axle nut, a resilient ring member and a cover member. The axle nut has a threaded bore at one end and a locking bore at the other end thereof. The threaded bore has a structural configuration which threadingly engages a bicycle axle. The outer surface of the axle nut has flat surface areas and an annular groove. The resilient ring member is disposed within the annular groove. The cover member is slidingly disposed over the outer surface of the axle nut. The cover member has a tapered, smooth outer surface and an end portion with a bore opening juxtaposed the locking bore of the axle nut. The use of the assembly prevents the untightening of the axle nut which holds the bicycle wheel in place on the bicycle frame.

Abstract: A portable tamperproof and battery-powered alarm device used for locking in place, objects which need to be restrained from theft. The device is ideal for locking bicycles, mini-bikes, motor cycles, and the like, due to its portability and versatility. The device includes a casing for an alarm and operative circuit therefor and an object-restraining member. Once the device is activated by an internal switch, any interruptions of the circuit, such as breaking of the restraining member, cause an audible alarm to sound continuously until the device is manually reset. The locking and alarm device is a completely separate unit from the object-restraining member, and thus the latter may be readily replaced as needed.

Abstract: A removable lock for bicycles or the like wherein a portion of the lock housing extends into the interior of the tubular head or sleeve and the fork stem is locked therein to prevent rotation of said parts. Means are also provided on said lock housing for anchoring a wire rope or restraint to effectively prevent theft of the bicycle when the wire rope is wound around a metal post or rack.

Abstract: A lock of rugged construction for preventing theft of a motorcycle. When the cycle is parked the brake is applied and a holding device is employed to hold the brake mechanism in locked position. In one form of the invention a traveling nut is employed for so holding the brake mechanism. Access to the device is prevented by means of a key actuated removable lock. In another form of the invention a wedge is employed in the holding device and a removable key actuated lock is connected to said wedge.

Abstract: A bicycle lock including a drum housing having a cable reel rotatably mounted in said drum housing on a shaft extending through the housing. A torsion spring is operatively connected between the shaft and the reel and is placed in tension by the rotation of the reel in one direction upon the shaft. A two part bar clamp is secured to the outer side of the housing for clamping the housing to one of the bars of a bicycle frame. A flexible securing cable having a lock on one end has its other end portion wound around the reel, and extends through a guide ring secured to the housing in alignment with an opening in one side of the housing. A safety cable is extended from a point of securement on one side of the reel housing to a point of securement to the guide ring, with a bight portion positioned between the points of securement of the safety cable.

Abstract: A lock for preventing theft of a motorcycle. When the cycle is parked the brake is applied so that a detent holds the brake mechanism in locked position. The detent is actuatable by a key for releasing the brake.

Abstract: The bicycle lock includes a housing structure secured to the frame of the bicycle under the seat adjacent to the rear bicycle wheel. A C-shaped member is pivoted to the housing structure for movement from an unlocked position to a locked position wherein the member passes under the rear tire and rim portion of the wheel. In addition, the housing includes a spring-loaded cable with one end exposed which can be pulled from the housing and looped about a stationary object such as a post and then re-inserted through an entrance opening in a side of the housing so that the wheel of the bicycle is not only locked against rotation but the bicycle itself is secured to a stationary object. A single cylinder-tumbler type key operated lock functions to simultaneously release the C-shaped member from its locked position and the one end of the cable from the entrance opening.

Abstract: A lever arm lock for a conventional quick-release hub assembly includes a cover mountable to a first skewer rod end nut supporting a quick-release lever arm. The cover is secured to the end nut with a locking mechanism (combination, magnetic, key, etc.) and maintains the lever arm in a locked position making it impossible to remove the hub. A second skewer rod end nut opposite the first end nut is formed with a substantially smooth outer surface that is continuously inclined with respect to the axle. This surface configuration prevents removal of the locked hub assembly by turning the second end nut with a pliers or other tool. The lever arm lock also prevents the hub from being jarred loose on impact with curbs, rocks, etc. The end nut assemblies have extensions which abut the frame thereby preventing loosening thereof for unauthorized removal.

Abstract: A key operated locking unit is permanently attached to a bicycle frame member. A flexible tether has one end permanently secured to the bicycle locking unit and has a plug-in lock element on its free end adapted to enter a receiver on the locking unit after first being looped around a stationary anchoring member and around part of the bicycle frame. Locking of the bicycle becomes essentially a one hand operation in the shortest possible time.

Abstract: An improved anti-theft locking device permanently and quickly securable to various objects by self-contained concealed fastener means sized to have an interference locking fit with a mounting bore such as the interior of a cycle handlebar or the like. The locking bolt may be secured to one end of a flexible cable normally stored and concealed in the handlebar and the major length of which is withdrawable therefrom when used to lash the cycle to a fixed object. The outer end of the cable is fixed to the locking bolt and this bolt is invertable so that either end is insertable into the locking mechanism depending upon whether or not the cable is in use. A variant embodiment of the invention is readily installed between a door and its casing and may utilize a linkage in lieu of a flexible cable as a part of the anchor subassembly.

Abstract: A cable employing device for securing frames to poles and posts; a cable dispensing and recovering casing secureable to a frame which includes releaseable engaging means for one cable end; an improved tensioning system for a cable dispensing casing which ordinarily retains the cable in the casing and returns the cable to the casing after use; a cable retention and return device for use in a cable dispensing container which employs a length of surgical tubing to power the cable retention and return; hinged enclosures for simultaneous enclosure of a cable dispensing system and engagement of a frame support.

Abstract: A removable lock primarily designed for bicycles or the like which is incorporated in the tubular head or sleeve and extends interiorly into the tubular steering stem or post, the lock including tumblers, a stationary housing and an interiorly positioned rotary shaft associated with said tumblers including a pair of spring arms which wind around the shaft in inoperative position and extend outwardly in operative position through said housing interiorly of said stem to prevent rotation of the steering post and withdrawal of the lock. Means are also provided for anchoring a wire rope or restraint on the lock to effectively prevent rotation of the wheels, etc.

Abstract: A locking apparatus is disclosed suitable for mounting on a bicycle comprising a flexible securing member such as a cable or a chain secured to a reel at a point between the ends of the cable or chain thereby allowing the ends to be payed out or reeled in. This arrangement allows the reel and the housing over the reel if such housing is to be used to be attached to a bicycle and both can be constructed of very light weight materials. The cable or chain can be of sufficient length that it may be completely run through the back wheel, the frame and the front wheel of a bicycle and then the ends of the cable or chain secured to one another through lock receiving members at the ends thereof.

Abstract: A bicycle lock comprised of a U-shaped shackle and a bolt lockable across the end of the shackle is detachably connected to a bracket mountable to the bicycle frame for storage purposes. The lock bolt is formed with a flat shank portion and an enlarged end portion. The shank portion passes through a pair of opposing slots formed at the ends of the shackle legs to engage a locking mechanism on one leg of the shackle. The enlarged end of the bolt prevents the bolt from passing through the shackle leg and also serves to engage the bracket. The bracket preferably is formed from two strips of metal bent and joined to define a pair of parallel leg sections with a pair of spaced apart semi-cylindrical portions one of which engages a part of the bicycle frame while the other engages the enlarged end of the bolt. Integral tab portions are formed on the free end of the bracket to extend through the shackle slot and against the shank of the bolt to hold the lock assembly in clamping engagement against the bracket.

Abstract: This invention relates to affixing and securing against theft, a radio (AM, FM, FM Stereo, Tape Player or any combination(s) thereof) or the essential circuitry thereof to a motorcycle and encompasses the optional placement of one or more headphone(s) within the protective helmet.