Abstract: A separable slide fastener comprises a pair of stringers, a slider and a separable bottom end assembly. Such bottom end assembly includes a socket connected to one of the paired stringers, a first pin projecting from the socket and secured to that stringer, and a second similar pin connected to the other stringer and having a planar outer surface. The first pin has a first outer flat surface disposed adjacent to and flush with the second pin, and a second outer surface extending from the first flat surface and beveled toward the plane of the associated stringer.

Abstract: A separable bottom-end-stop assembly of thermoplastic synthetic resin, for a separable slide fastener, comprises a pair of first and second separate pin members, and a socket member for being secured to the first pin member, the socket member having a pair of first and second bores receptive of the first and second pin members, respectively. The first pin member has on its opposite faces a pair of recesses, and the socket member has a pair of opposed projections extending into the first bore. In assembling, the projections of the socket member are received in the respective recesses of the first pin member when the latter is inserted into the socket member's first bore. Because of this projection-and-recess locking, the first pin member can be kept exactly in position relative to the socket member while these two members are joined together by fusing.

Abstract: A separable slide fastener to be attached to a knit fabric has a pair of warp-knit stringer tapes each with a series of openings. Each of the stringer tapes may include a reinforcement film bonded to a lower end portion thereof and having a recess which allows some of the tape openings to be exposed for use in attachment to the knit fabric. The recess may be covered with a thin layer penetratable by knitting needles. A separble bottom end stop may be injection-molded on the reinforcement films bonded to the stringer tapes. Knitting needles are inserted in the openings, and a fabric is knitted thereon to form successive courses. To this end, a row of loops of a course are looped with transverse longitudinally spaced thread portions which define ends of the openings.

Abstract: A slide fastener chain has a plurality of spaced separating regions along which the slide fastener chain can be separated or torn to slide fastener lengths one after another by hand without a cutting device. Each separating region extends transversely across the fastener chain and is at least partially thinned or recessed by fusing the thermoplastic synthetic materials of the fastener stringers at the prospective separating region.

Abstract: In a reinforcing-film applying apparatus for use in production of separable slide fasteners, there are a first working station where a shaping die and a coacting ultrasonic horn are located, and a second working station where a heating die and a coacting heating punch are located, the first and second working stations being spaced apart remotely from one another along a longitudinal path of a slide fastener chain. When one of successive pairs of blank tape portions arrives at the first working station, a reinforcing film piece is placed on the fastener chain across the pair of blank tape portions, whereupon the shaping die and the ultrasonic horn are moved toward one another to fuse the reinforcing film piece to the pair of blank tape portions only at their inner marginal areas and also to shape such fused marginal portions so as to provide therealong a pair of pin-like members to which a pin and a box of a separable bottom end stop are to be attached.

Abstract: A separable slide fastener has a pair of warp-knit stringer tapes each with a series of longitudinal openings for easy attachment to a knit fabric. Each of the stringer tapes includes a reinforcing body mounted on a lower end portion thereof and including a thin member and an endmost thick member both extending transversely across some of the tape opening, the thin member covering at least the endmost opening and the endmost thick body having a transverse portion contiguous to the thin member in the longitudinal direction of the stringer tape and extending about a portion of the thin member and the lower end portion of the stringer tape. A separable bottom end stop is injection-molded on the thin reinforcement member bonded to the stringer tape so as to form integrally therewith the thick reinforcement member.

Abstract: A mechanism, for intermittently feeding a tape-like article along a longitudinal path, comprises a slide having a first clamping jaw and reciprocably movable parallel to the longitudinal path, and a second clamping jaw carried by the slide and movable relatively thereto toward and away from the first jaw to clamp and release the tape-like article. At the end of the slide's forward movement, the second jaw is moved away from the first jaw and is locked in such "releasing" position. At the end of the slide's backward movement, the second jaw is unlocked and thereby returned to its "clamping" position.

Abstract: A separable slide fastener has a pair of warp-knit stringer tapes each with a series of openings for easy attachment to a knit fabric. Each of the stringer tapes includes a reinforcement film bonded to a lower end portion thereof and having a recess which allows some of the tape openings to be exposed for use in attachment to the knit fabric. The recess may be covered with a thin layer penetratable by knitting needles. A separable bottom end stop is injection-molded on the reinforcement films bonded to the stringer tapes.

Abstract: A separable slide fastener comprises a pair of warp-knit stringer tapes each having a pair of webs with a wale-free region therebetween, which are interconnected by a connector thread extending across the wale-free region at longitudinal intervals, the wale-free region being receptive of a chain of thread loops for attaching the stringer tape to a fabric. A pair of rows of coupling elements is mounted on opposite longitudinal edges of the stringer tapes, respectively and taken into and out of interdigitating engagement by a slider movable along the rows of coupling elements. The stringer tapes have at one end thereof a separable bottom end stop. A reinforcement member is mounted on each of the stringer tapes at the one end thereof and connected to the separable bottom end stop.

Abstract: A separable slide fastener comprises a pair of warp-knit stringer tapes each having a pair of webs with a wale-free region therebetween, which are interconnected by a connector thread extending across the wale-free region at longitudinal intervals, the wale-free region being receptive of a chain of thread loops for attaching the stringer tape to a fabric. A pair of rows of coupling elements is mounted on opposite longitudinal edges of the stringer tapes and taken into and out of interdigitating engagement by a slider movable along the rows of coupling elements. The stringer tapes have at one end thereof a separable bottom end stop. A reinforcement member is mounted on each of the stringer tapes at the one end thereof and connected to the separable bottom end stop. The reinforcement member extends between the tape webs across the wale-free region and includes a body having a recess for receiving therein an end of the chain of thread loops on the reinforcement member against displacement thereoff.

Abstract: A separable slide fastener comprises a pair of warp-knit stringer tapes each having a pair of webs which are interconnected by connector threads extending across the tape to provide a series of spaced openings receptive of stitching threads for attaching the fastener to a fabric article. A pair of rows of coupling elements is mounted on opposite longitudinal edges of the stringer tapes and taken into and out of inter-digitating engagement by a slider movable along the rows of coupling elements. The stringer tapes have at one end thereof a separable bottom end stop. A reinforcement strip preferably made of a textile material is mounted on each of the stringer tapes adjacent to the separable bottom end stop. The reinforcement strip has a series of pre-formed apertures spaced at such intervals and of such a size which are suitable for receiving threads from a knitting machine and a linking machine as well to secure the fastener to the fabric article.

Abstract: An ornamental attachment for a slide fastener slider with a pull tab, comprising a body having a channel for receiving therein the pull tab, a projection extending from one plate of the body into the channel for locking the pull tab in the channel, and a pair of spaced slits formed in the body and communicating with and extending longitudinally of the channel to define therebetween a resilient web portion which is displaceable against the resiliency thereof away from another plate in response to engagement between the pull tab and the locking projection when the pull tab is inserted into the channel, until the pull tab becomes locked by the locking projection.

Abstract: A separable slide fastener having a separable assembly comprises a pair of stringer tapes each carrying along one longitudinal edge a row of coupling elements each having a pair of spaced legs and a coupling head extending between the legs. The separable terminal assembly comprises a separable pin and a retainer pin fixed to the bottom end of the respective tapes and a retainer formed integrally with the retainer pin for receiving the separable pin. The rows of coupling elements can be interlocked by interengagement of a pair of lateral projections of the opposed coupling head. The lateral projections of the endmost coupling elements located adjacent to the pins are cut off to permit the endmost coupling elements to be disengaged from each other when the slide fastener is closed.

Abstract: A separable slide fastener has a separable end stop assembly including a pair of pin members each formed, by injection molding, on one of a pair of fastener stringers along a bottom end portion of an inner longitudinal edge thereof, and means for holding the pair of pin members in collateral relation to couple the stringers at their bottom ends. A pair of reinforcing wing members are each formed integrally with one of the pin members and extend therefrom so as to overlie an inner marginal portion of one reinforcing film attached to a respective one of stringer tapes. Each wing member has an outer edge extending substantially parallel to one of the pin members and disposed slightly outwardly of an outermost side edge of a slider.

Abstract: A pair of continuous fastener stringers are fed intermittently for a distance corresponding to an individual slide fastener length. A strip is placed on one surface of the stringers while the latter are held stationary between intermittent movements. Then, heat and pressure is applied to the stringers at its portion where the strip has been placed upon; to fuse adjacent coupling elements with each other and with a pair of stringer tapes, and the latter with the strip, and to shape the fused coupling elements into a desired configuration. Such shaped coupling elements are cut to provide a separable pin and a retainer pin. Simultaneously with this cutting, the stringers are cut along a line extending transversely of the stringers and passing near the two pins to provide an individual slide fastener length. A retainer is attached to the retainer pin.

Abstract: An improved slide fastener assembly incorporating an arrangement in which the stringer tapes of the fastener may be sewn into a garment prior to assembly with the slider and wherein the slider may then be assembled to the stringers without force. Upon such assembly the parts remain assembled by virtue of cooperating fastener elements having projecting portions that interengage with each other and the slider to prevent retrograde movement back out of the slider following assembly.

Abstract: A slide fastener is provided with an end stop made of a synthetic-resinous strip and comprising a platelike body substantially rectangular in plan. The strip is thermally molded on longitudinally of a plurality of fastener elements so as to extend over substantially the entire width of a row of fastener elements. An elongated ridge portion is provided longitudinally of the platelike body so as to register with respective lines of sewn stitches.

Abstract: A separable slide fastener is disclosed which is provided with a separable end stop assembly comprising a pin member on one stringer and a socket member on the other stringer, both members being releasably interengageable to couple the stringer. Each stringer has a portion of its fabric tape raised above the general plane of the tape and anchored within the stop assembly. The pin part of the assembly is reinforced by a sleeve which has a thickened portion extending closely along a longitudinal marginal edge of the pin.

Abstract: A method of welding a row of interconnected thermoplastic coupling elements for slide fasteners at opposed leg portions of each coupling element with the use of an ultrasonic horn. The method comprises: pressing the opposed leg portions of the coupling elements against the ultrasonic horn on its opposite sides during the coupling elements are being fed at constant speed; concurrently with this pressing step, fusing the opposed leg portions of the coupling elements at their confronting inner surfaces by ultrasonically vibrating the ultrasonic horn in a direction parallel to the confronting inner surfaces; and pressing the opposed leg portions of the coupling elements, after the latter is disengaged from the ultrasonic horn, against each other so as to be united at the confronting inner surfaces that have been fused. An apparatus for carrying the above method into practice efficiently and accurately is also disclosed.

Abstract: A slide fastener stringer comprises a stringer tape including thermoplastic synthetic fibers and a row of continuous fastener elements made of thermoplastic synthetic resin and fixed by sewing threads to one longitudinal edge of the tape, the elements being reinforced by a braid extending along the element row. The slide fastener stringer has a cut edge where the tape, extreme one of the fastener elements, sewing threads, and braid are united together by fusing the tape and the extreme fastener elements against reveling of the cut ends of the tape, sewing threads, and braid, and against sticking up of the element from the tape. The cut edge has a substantially flat surface slanted with respect to the plane of the stringer tape, thereby giving the cut edge a neat and smooth appearance with no burrs thereon.