Abstract: A locking mechanism utilizing a cable in which the cable has been flattened so as to give it an oval or flattened shape and wherein an orifice into which the cable is inserted for one way motion is flattened so as to prevent the cable from being twisted or turned thus preventing the cable from being removed from the locking device. In certain embodiments the locking device may, when in the locked position, have a loop of cable extending from it and in another embodiment a cable with a flag attached thereon may be used with the locking device.

Abstract: A tamper proof attachment system is provided to secure a device such as a radio or tape deck in a vehicle. The looped cable passes through an anchoring point and the ends of the looped cable are locked and pass through an attachment device. The attachment device housing has an aperture in one end through which a mounting bolt is positioned and the head of the bolt is free to turn within the housing. The mounting bolt also passes through a mounting bracket and is threaded into a mounting surface of the vehicle. An open end of the attachment device housing is closed by a plug to cover the head of the bolt. In one embodiment the plug has apertures which align with apertures in the housing to permit the cable to pass through and to retain the plug in place. The device such as a tape deck or radio is fastened to the mounting bracket by bolts having tamper proof mounting covers according to the invention.

Abstract: An apparatus for bracing and securing entrance doors to a storage area has a bracing means detachably connected within the storage area adjacent the door. A free end of a retainer member is aligned through an aperture in the door and pushed into a locking means mounted adjacent the aperture on the bracing means. The free end of the retaining member is slidably engaged in a locking means as it is pushed therein. The locking means locks to the free end of the retaining member when an attempt is made to withdraw said member.

Abstract: An improved Cable Loc Seal which includes a staking operation which locks the fixed end of the cable to the lock and furthermore, prevents the integrity of the seal from being destroyed in that if the cable is cut and the fixed end removed a new end of the cable cannot be inserted into the lock which guarantees the integrity of the seal.

Abstract: A bolt seal for securing hasps on trailer truck doors and/or rail car doors which utilizes a round or oval head bolt which extends through the hasps and upon which a nut is threaded. The nut is threaded onto the bolt until it is tight and then a hollow tube is used to bend the bolt sharply to about 90.degree. just under the nut. Identification number areas are formed at the tail of the bolt and on a flat portion of the bolt adjacent the head. If a thief tries to break the seal by bending the bolt back to its original straight condition, the metallurgy of the bolt is selected so that the bolt breaks off. This indicates that the seal has been tampered with and furthermore, the thief finds that if he tries to turn the nut the round head of the bolt will rotate and since the threads are upset by the bending he will be unable to remove the nut. A modification of the invention utilizes a spin nut which is cylindrical in shape.

Abstract: A locking means for providing a seal comprising a locking shell formed with a central passageway which is internally tapered with an opening that changes from conical to triangular in shape and which carries spring loaded ball bearings and a retainer such that a cable can be inserted through the central opening in a first direction, thus, depressing the spring and allowing the balls to relieve pressure on the cable in said first direction but which provides substantial and locking pressure on the cable when the cable is placed under tension in the opposite direction. The cable may also be attached to a second fixed member such that a seal may be made by placing the locking case and the fixed member on the same cable.

Abstract: A snap ring lock which utilizes a bolt or cable that can be extended through hasps and which has a locking portion formed with tapered grooves spaced predetermined distances apart and receivable in a cylindrical member having a plurality of snap rings spaced therein at predetermined distance which distance is different from the distance between the grooves of the bolt to provide a seal which can be locked in a number of positions to adjust to the particular requirements. In a modification the bolt may carry the snap rings and the grooves may be formed internally within the locking member and identification can be placed on the bolt.