Abstract: A directional lock or a headgear or interface assembly comprising one or more directional locks that include a catch arrangement for initiating or assisting in movement of a lock member of the direction lock. In some configurations, the catch arrangement assists movement of the lock member in only a portion of a range of travel of the lock member. In some configurations, the directional lock comprises a housing and a sleeve and the catch arrangement comprises a catch arm carried by the sleeve. The catch arm includes a catch end that contacts the lock member, which can be a lock washer in some configurations.

Abstract: A directional lock or a headgear or interface assembly has one or more directional locks that include a catch arrangement for initiating or assisting in movement of a lock member of the direction lock. In some configurations, the catch arrangement assists movement of the lock member in only a portion of a range of travel of the lock member. In some configurations, the directional lock has a housing and a sleeve and the catch arrangement has a catch arm carried by the sleeve. The catch arm includes a catch end that contacts the lock member, which can be a lock washer in some configurations.

Abstract: An article of jewelry for wearing on the body may comprise a sintered polycrystalline diamond compact with substantially no metal catalyst. As many of the metal catalysts commonly used in the art are known to cause skin irritation, such a sintered compact with substantially no metal catalyst may be more biocompatible than previously known. A method for forming such a biocompatible sintered polycrystalline diamond compact comprises mixing diamond powder and metal catalyst powder into a mixture and sintering the mixture under elevated temperature and pressure conditions to form a sintered compact. The sintered compact may then be leached in an acid or other solution to substantially remove the metal catalyst from the sintered compact.

Abstract: Various cufflink embodiments are provided. In some embodiments, the cufflink has opposed first and second heads that are releasably locked relative to each other. In some embodiments, the opposed first and second heads can be locked releasably in multiple positions with respect to each another. In other embodiments, a stud or cufflink includes a removable decorative insert. In certain embodiments, a cufflink includes a retention structure configured to temporarily retain part of the cufflink on a shirt cuff. Some embodiments provide a cufflink having an actuator protected against inadvertent actuation.

Abstract: A cufflink for a button shirt has an inner piece configured to be disposed on an inside of paired shirt sleeve cuffs, and an outer piece configured to be disposed on an outside of the paired shirt sleeve cuffs. At least one of the inner piece and the outer piece has a male portion preferably having a male engagement device thereon. An opposite one of the inner piece and the outer piece has a complementary female engagement device therein. The male engagement device and the female engagement device are configured to be releasably coupled to one another. Preferably, the male engagement device includes a pin configured to pass through the inner cuff button hole and then the outer cuff fabric before engaging the female engagement device. Preferably, the outer piece inner surface has a recess therein configured to encompass the shirt sleeve button.

Abstract: Improved clothing fasteners include a socket having a female member with a flange member having a magnetic element, and a slot and a stud having a male member with a flange element having a magnetic element. Magnetic attraction between the magnetic elements draws the female and male members to close proximity such that an applied force on an outer portion of either the socket and the stud and their corresponding outer base portions allows for a snap fit between the male and female members. In an alternative embodiment, one of either the socket female flange member or the stud male flange member includes a magnetic element and the other is of a metallic material, and a magnetic attraction draws the socket and the stud in close proximity such that a snap fit is allowable.

Abstract: A system and method for securing accessories to shoes and other articles of clothing is described. One illustrative embodiment is a system for attaching a decorative accessory to a shoe, the system comprising a shaft having first and second ends; a first shoulder secured to the first end of the shaft, the first shoulder being configured for insertion through an expandable hole in an upper portion of the shoe and configured to engage an inner surface of the upper portion of the shoe; a second shoulder secured to the second end of the shaft, the second shoulder being configured to engage the shoe; and a third shoulder adjacent to the second shoulder, the third shoulder comprising the decorative accessory.

Abstract: A single-piece cuff link for use in releasably coupling a first and a second section of a sleeve, the cuff link including first and second arms meeting at first ends and being curved relatively inwardly toward each other at respective second ends.

Abstract: A jewelry device, for attachment to a French cuff, convertible cuff or a casual shirt of a type comprising a cuff, a cuff button and a cuff button hole, having a U-shaped frame. A hook shaped arm may connect the U shaped frame around the sleeve cuff. A pair of bars may station the frame, so that it does not become dislodged, offset or pivots from awkward movements. An alternate embodiment uses a removable pin to connect the U shaped frame to the sleeve cuff.

Abstract: This invention relates to a cufflink that can be attached on a casual shirt of a type comprising a cuff, a cuff button and only one cuff button hole. The cufflink comprises a pair of legs joined by a spring, an attachment means, which is either a hook or a cup-shaped member for placing on top of the cuff button and an impingement knob biased against the attachment means by the spring.

Abstract: This invention relates to a cufflink that can be attached on a casual shirt of a type comprising a cuff, a cuff button and only one cuff button hole. The cufflink comprises a pair of legs joined by a spring, an attachment means, which is either a hook or a cup-shaped member for placing on top of the cuff button and an impingement knob biased against the attachment means by the spring.

Abstract: In accordance with the present application, a cuff link comprises any mobile two-piece button, of metal or any other solid material, which is used to secure the cuffs of a shirt or other item of clothing together, by means of a magnetized connection.

Abstract: A device for enhancing the fastening of the top button of a dress shirt comprises a latch member having a tab portion and a hook portion. The tab portion is adapted to be sewn to the button hole placket at the top of the shirt so that the hook portion may engage the top button.