An apparatus for redundant retention of a device comprises a mountable device comprising a first side having a first fastening portion and a second fastening portion, at the first fastening portion, an elongated body having an inclined face parallel to and protruding from the first side and a flat face perpendicular to the first side, at the second fastening portion, a circular body with a smooth circular face, the circular body protruding from the first side, a removable device comprising a corresponding first side having a corresponding first fastening portion and a corresponding second fastening portion, at the corresponding first fastening portion, a first groove for receiving the elongated body and engaging a first retention mechanism, at the corresponding second fastening portion, a second groove for receiving the circular body and engaging a second retention mechanism.

A neckwear includes a neckband, a neckband module and one or more torso segments connected by fasteners. The neckwear may include a plurality of pivoting, intra-changeable, metallic torso segments. Also provided are improved take-apart fasteners and improved quick-release buckles, for use in neckwear, jewelry, wristwatches and watchbands or for otherwise securing objects.

A neckwear includes a neckband, a neckband module and one or more torso segments connected by fasteners. The neckwear may include a plurality of pivoting, intra-changeable, metallic torso segments. Also provided are improved take-apart fasteners and improved quick-release buckles, for use in neckwear, jewelry, wristwatches and watchbands or for otherwise securing objects.

A weightlifting belt includes a flexible strap portion with a first major surface (e.g., a front), a second major surface (e.g., a back), a first longitudinal end, a second longitudinal end, a first lateral side, and a second lateral side. An anchor assembly is in contact with the first major surface of the flexible strap portion near the first longitudinal end of the flexible strap portion. A lever-actuated hook assembly is in contact with the first major surface of the flexible strap portion near the second longitudinal end of the flexible strap portion. The lever-actuated hook assembly is configured to engage the anchor assembly so as to hold the first longitudinal end of the strap portion close to, or in physical contact with, the second longitudinal end of the strap portion so as to form a loop that can fit around a waist of a human.

A weightlifting belt includes a flexible strap portion with a first major surface (e.g., a front), a second major surface (e.g., a back), a first longitudinal end, a second longitudinal end, a first lateral side, and a second lateral side. An anchor assembly is in contact with the first major surface of the flexible strap portion near the first longitudinal end of the flexible strap portion. A lever-actuated hook assembly is in contact with the first major surface of the flexible strap portion near the second longitudinal end of the flexible strap portion. The lever-actuated hook assembly is configured to engage the anchor assembly so as to hold the first longitudinal end of the strap portion close to, or in physical contact with, the second longitudinal end of the strap portion so as to form a loop that can fit around a waist of a human.

An apparatus for redundant retention of a device comprises a mountable device comprising a first side having a first fastening portion and a second fastening portion, at the first fastening portion, an elongated body having an inclined face parallel to and protruding from the first side and a flat face perpendicular to the first side, at the second fastening portion, a circular body with a smooth circular face, the circular body protruding from the first side, a removable device comprising a corresponding first side having a corresponding first fastening portion and a corresponding second fastening portion, at the corresponding first fastening portion, a first groove for receiving the elongated body and engaging a first retention mechanism, at the corresponding second fastening portion, a second groove for receiving the circular body and engaging a second retention mechanism.

An apparatus for redundant retention of a device comprises a mountable device comprising a first side having a first fastening portion and a second fastening portion, at the first fastening portion, an elongated body having an inclined face parallel to and protruding from the first side and a flat face perpendicular to the first side, at the second fastening portion, a circular body with a smooth circular face, the circular body protruding from the first side, a removable device comprising a corresponding first side having a corresponding first fastening portion and a corresponding second fastening portion, at the corresponding first fastening portion, a first groove for receiving the elongated body and engaging a first retention mechanism, at the corresponding second fastening portion, a second groove for receiving the circular body and engaging a second retention mechanism.

A buckle for releasable load coupling of two elements, the buckle includes a first and a second buckle component. Each of the buckle components may have a connection area via which one of the elements is connectable to the buckle component, and a coupling area wherein the buckle components can be coupled to one another in a form-fit manner. The buckle components may be releasably locked to one another at the coupled position by a locking element. Each of the coupling areas of the buckle components may be defined by a hook profile extending in the width direction. The hook profiles of the buckle components may be configured as complementary elements and interengage at the coupled position of the buckle components. One embodiment includes using the buckle to couple two elements on an object that can be worn on the human body, and in some cases, a ballistic vest.

A buckle for releasable load coupling of two elements, the buckle includes a first and a second buckle component. Each of the buckle components may have a connection area via which one of the elements is connectable to the buckle component, and a coupling area wherein the buckle components can be coupled to one another in a form-fit manner. The buckle components may be releasably locked to one another at the coupled position by a locking element. Each of the coupling areas of the buckle components may be defined by a hook profile extending in the width direction. The hook profiles of the buckle components may be configured as complementary elements and interengage at the coupled position of the buckle components. One embodiment includes using the buckle to couple two elements on an object that can be worn on the human body, and in some cases, a ballistic vest.

Devices, systems, and methods of operating the same are described. The method may include attaching a first loop of a male connector to a first end of a first plug. The method may include attaching a second loop of a female connector to a second end of a second plug. The method may include connecting a first end of the first plug to the second end of the second plug. The method may include connecting a male fastener of the male connector to a female fastener of the female connector.