Abstract: Fastener element of slide fastener has an intermediate portion including bent or curved portion between a terminal portion and a base portion. The intermediate portion has an engaging protrusion and an engaged recess which are respectively protruded and recessed on an axis that matches a movement direction of the slider. In an orthogonal direction orthogonal to the axis, a first distance between the axis and the terminal surface of the terminal portion is less than a second distance between the axis and the base end surface of the base portion.

Abstract: An element includes a head having an engaging convex portion protruding from one surface thereof and an engaging concave portion formed on the back of the engaging convex portion on the other surface; and a pair of leg portions extending from the head. A protrusion is formed on a side of the engaging concave portion close to the leg portions to protrude inward of the engaging concave portion.

Abstract: A connector includes a first connector having first female contacts, first male contacts and a first insulation portion disposed between each first female contact and an adjacent first male contact, and a second connector having second female contacts, second male contacts and a second insulation portion disposed between each second female contact and an adjacent second male contact, provided that a width of each first female contact and second female contact on fitting is denoted by W1, a width of the first insulation portion and the second insulation potion by W2, and a width of each first male contact and second male contact by W3, a distance between centers of one first female contact and an adjacent first male contact and a distance between centers of one second female contact and an adjacent second male contact are each smaller than a sum of W1/2, W2 and W3/2.

Abstract: There is provided a slide fastener. A pair of core sections are respectively provided along opposing tape side edge portions of a pair of fastener tapes. A pair of fastener element rows are respectively attached to the pair of core sections. Each of the pair of fastener element rows includes a plurality of fastener elements made of metal. Silica is applied to surfaces of the core sections and the fastener elements.

Abstract: In a slide fastener (1) according to the invention, each fastener element (10, 10?, 30, 40) includes an upper half element portion (11, 31, 41) disposed at a first surface side of a fastener tape (2) and a lower half element portion (21) disposed at a second surface side of the fastener tape (2). The upper half element portion (11, 31, 41) includes a first tape-sandwiching portion (12, 32, 42) and a first head portion (13, 13?, 33, 43) of a tapered form that extends from the first tape-sandwiching portion (12, 32, 42). The upper half element portion (11, 31, 41) has a tapered portion (14, 34, 44) that gradually decreases in a dimension between front and rear side surfaces, in the tape length direction, of at least the first tape-sandwiching portion (12, 32, 42) as it goes upward. According to the slide fastener (1) of the invention, each fastener element (10, 10?, 30, 40) can be formed lightweight, and the fastener element (10, 10?, 30, 40) can be given an appearance looking like a metal fastener element.

Abstract: An electronic circuit interconnect apparatus that includes two zipper tracks configured to zip together thereby causing a first circuit to electrically couple with a second circuit. Specifically, each of the zipper tracks include a plurality of teeth, one or more of which are electrically coupled to the first circuit or the second circuit. As a result, when the teeth coupled to the first circuit are zipped to the teeth coupled to the second circuit it causes the first and second circuits to be electrically coupled.

Abstract: Provided is a slide fastener that has a flexible fastener tape, exhibits liquid-tightness, and can prevent a gap from being formed in a coupling portion, and a method of producing the slide fastener. An overlay material is formed on a front surface of a fastener tape so that the overlay material formed on a surface of a core member extends beyond a centerline in a front-rear thickness direction of a tape member. When a pair of fastener element rows engages with each other, a tip of an intermeshing head of a fastener element presses the overlay material formed on the opposite core members.

Abstract: Metallic one-side teeth include an upper inclined plane declining toward the side of interlock dent portion provided between the opening edge of the interlock dent portion and the apical edge of an interlock head portion.

Abstract: Various embodiments of slide fasteners include a first set of coupling elements and a second set of coupling elements configured to be removably joined together by a slider. Each coupling element includes a first surface having a first shape and a second surface having a second shape, wherein the second surface is spaced apart from and cofaces the first surface. The first shape may be substantially triangular or substantially trapezoidal, according to various embodiments, and the second shape is substantially gear shaped. When the coupling elements of the first set and the second set are removably joined together, water is substantially prevented from leaking from the first surface to the second surface. In addition, the coupling elements are disposed on stringer tapes, and the surfaces of the stringer tapes adjacent the first surfaces of the coupling elements are laminated with a water resistant material.

Abstract: A metallic engaging element of vintage type having a pair of leg portions formed so as to branch to right and left sections from the bottom of a body portion of the engaging element. The leg portions are formed into an L-like sectional shape including a sheet-like nipping portion and a leg portion side wall. The sheet-like nipping portion has a notch portion for sandwiching one side edge portion of a fastener tape from the front and rear surfaces. At least one projecting portion is formed in each of leg portion inner wall surfaces opposing the one side edge portion of the fastener tape in the leg portion side wall.

Abstract: A double-sided engaging element for a slide fastener, comprising a central elevated portion elevated from a coupling base surface; and a pair of right and left projecting portions formed to project from a body portion toward the central elevated portion and to be elevated from the coupling base surface, wherein a central elevated portion of a mating element is detachably coupled in a dent surrounded by the central elevated portion, the right and left projecting portions and a stepped surface. A dimension (T0) between inside elevation startup edges of the right and left projecting portions is set smaller than a dimension (R0) between right and left elevation startup edges of the central elevated portion, and a first missing portion is formed on an outside corner of an end portion of each of the right and left projecting portions opposing the central elevated portion.

Abstract: A slide fastener assembly includes a first coupling member that has a plurality of locking tabs. A second coupling member has a plurality of locking channels. Each of the locking channels of the second coupling member receives one of the locking tabs of the first coupling member when the second coupling member and the first coupling member are pressed together. A slider assembly is slidably coupled to the first coupling member and the second coupling member. The slider slides in a first direction along the first coupling member and the second coupling member for locking each of the locking tabs of the first coupling member into a respective one of the locking channels of the second coupling member. The slider slides in a second direction for removing each of the locking tabs of the first coupling member from the respective one of the locking channels of the second coupling member.

Abstract: A cuff link including interconnected outer and inner elements, in which said outer element is in the form of a shank button which is maintained in interchangeable interconnection with said inner element by a manually operable clasp permanently attached to the inner element.

Abstract: A safety release zipper including two opposing side portions securable to two opposing sides of a garment to be closed together. Two lengths of interlocking teeth are secured to and extend inwardly from the two opposing side portions. The teeth have a triangular configuration including a base portion, angled side portions and an apex portion. A sliding channel having an interior block is slidably coupled with the two lengths of interlocking teeth. The sliding channel slides along the lengths of interlocking teeth to facilitate the engagement and disengagement thereof. A pivotal handle is coupled with the sliding channel.

Abstract: A zipper has its teeth formed by two interfitting plastic tooth elements one of which has pointed prongs fitting into matching holes in the other tooth element and extending through a fabric mounting strip having a bead clamped between the tooth elements of each zipper tooth. The tooth elements also interfit outwardly of the mounting strip by way of a land and matching recess, and an additional prong and matching hole. The interfitting tooth elements are welded together at the interfit of the prongs and of the land. The zipper is locked in closed position at each end by a locking unit which has a latch with locking pawls which fit between adjoining zipper teeth when the latch is swung into locking position after sliding the locking unit onto an end portion of the zipper.

Abstract: A press-formed, metal, coupling element particularly suitable for use in a bidirectionally openable slide fastener which includes a coupling head portion having on its opposite end a protrusion and a corresponding pocket, and a guide groove formed in the front end of the coupling head portion, the guide groove having a width and a depth both reducing progressively from the pocket side toward the protrusion side of the coupling head portion. When the slide fastener is opened and closed, the guide groove in each coupling element slidably receives and guides the front end portion of the opposite coupling element as the protrusion and pocket of these coupling element are brought into and out of mutual engagement with each other. With the provision of the guide groove, the coupling elements are mutually engageable and disengageable with least friction resistance when the slide fastener is opened and closed in either of two reciprocal directions. A simple method of making such coupling element is also disclosed.

Abstract: An attachment to a zipper pull tab is provided. The attachment is a flexible elongaged member with its length being at least twice its width. The upper portion of the flexible elongated member is provided with an opening through which the lower portion of the elongated member may be inserted.

Abstract: This invention relates generally to fasteners, and more particularly to slide fasteners, commonly known as zippers, and a method of forming the same, which may be used to fasten three or more sets of links together, as well as, to provide a collapsible, rigid support for loads which may be applied axially and laterally to the fastened together links. The invention is easily stored and uses a single slider for interlocking the separate sets of elements in a simple and effective manner. The tapes have multiple links secured thereto and extend orthogonally therefrom. The slider has guideways through which the links may pass. The tapes and the links are passed downward through the slider element to thereby intersperse and interlock the links and thus the tape. The opposite movement through the slider causes the links to be separated and disjoined.

Abstract: A sliding clasp fastener which is provided has a pair of sliders for opening and closing the fastener in the forward direction and in the reverse direction, respectively. The fastener has a series of discrete coupling elements each having means for facilitating engagement of adjacent elements with minimum frictional resistance when the fastener is opened or closed in the reverse direction, such means comprising a pocket having a front end wall sloping at the outside of the pocket and being reinforced by rib means inside the pocket.

Abstract: A coupling element of a slide fastener stringer has a pair of integral upper and lower coupling portions having different shapes and engagable with the lower and upper coupling portions of adjacent coupling elements on a co-operating like stringer. The upper coupling portion has a side surface including a flat abutment surface extending perpendicularly to a stringer tape across the thickness of a longitudinal edge portion of the stringer tape. When lateral pulling forces are applied to the coupled stringers, areas on the abutment surfaces of the interdigitating coupling elements take up such forces and prevent the stringers from separation.