Abstract: A padlock-type security seal that generally includes a U-shaped resilient shackle having two legs and a body having two apertures formed in a first end thereof for insertion of the shackle legs. The apertures are positioned in the first end of the body along two separate offset planes to provide a torsional force to the shackle upon insertion. The torsional force acts on locking elements of the legs to engage the body thereby preventing removal of the shackle. The locking elements are reversibly bent tangs formed at the ends of the shackle legs at offset angles with respect to the plane of the shackle. At least one of the shackle legs preferably includes a bent hinge portion for transferring the torsional force to the locking elements. A locking insert contained within the body engages at least one of the locking elements of the shackle legs under the torsional force to prevent removal of the shackle.

Abstract: A cable lock comprising a housing having two longitudinal channels extending therethrough, a pocket at one end, and a cable having one end permanently locked within one channel. There is a spring disposed within the other channel, a cap disposed in the pocket to retain the spring and a gripping mechanism slidably disposed within the second channel adjacent the spring. The second channel is tapered toward the end nearest the gripping mechanism. The gripping mechanism is a substantially rectangular device having a plurality of gripping teeth arranged in two rows along its top edge to form a plurality of opposing tooth pairs. The gripping mechanism is also tapered to conform to the tapered channel in which it is disposed. There is a longitudinal concave channel for receiving the other end of the cable disposed on the top surface of the gripping mechanism between each pair of teeth and an angled front surface for leading the other end of cable into longitudinal concave channel.

Abstract: An improved hand tool is disclosed for tightening strap fasteners such as money bag seals or cable ties or the like. The tool is a plier-like device having a pair of jaws including a pawl mechanism which engages teeth on the strap. After the fastener is drawn tightly around the bag neck or cable with a predetermined fastening force, the tool automatically severs the fastener. A knife on the tool then is used to cut the free end from the fastener.

Abstract: A tamper proof seal comprising a tie member makes a seal with a coupling seal on a plug which is movable laterally into the seal body portion while said tie member is movable into said body portion perpendicularly to the movement of said plug, said tie member, said seal body portion and said plug capable of being molded out of a plastic material as a unit.