Abstract: A slide-type fastener which has mating halves of which one has an elongate, lengthwise-extending bead and the other has a laterally open elongate, lengythwise-extending recess is adapted to receive said bead, the fastener is capable of interengagement such that the bead is introduced laterally into and removed laterally from the recess and is adapted so that when the bead is in the recess, applying lateral tension between the said two halves applies no uncountered force which removes the bead from the recess.

Abstract: A quick-sealing assembly and method for forming an adhesive seal on opposite sides of a mechanical seal for a flexible containment bag of the type used for working with radioactively contaminated objects. The assembly includes an elongated mechanical fastener having opposing engaging members affixed at a predetermined distance from each of the elongated edges, with an adhesive layer formed between the mechanical fastener and the elongated edge such that upon engagement of the mechanical fastener and adhesive layers to opposing containment fabric, a neat triple hermetic seal is formed.

Abstract: A water-tight slide fastener is disclosed, which comprises a pair of support tapes each coated on one surface with a water-resistant material and a row of coupling elements mounted on each of the tapes along its longitudinal edge. The spaces or gaps defined in the row of elements being completely filled by a filling core when the latter swells in contact with a liquid to prevent entry of the liquid into a garment to which the fastener is applied.

Abstract: The gas- and liquid-tight fastener includes a zipper an a sealing slide fastener. The zipper and the sealing slide fastener are arranged side-by-side in a plane which is perpendicular to the plane of the material wall to be sealed. The material wall is connected to the support tapes of the zipper, which have thickenings on their free ends, on which the teeth or spirals of the zipper are mounted. For actuating the zipper and the sealing slide fastener there is provided a slider made in one piece, which when being actuated closes the zipper, thereby also simultaneously forcibly closing the sealing slide fastener.

Abstract: A jointing device for connecting together the ends of a papermakers or like fabric including coil elements (13, 14) attachable to the respective fabric ends, the end regions (20, 21) of the individual turns of the coils being so profiled as inherently to maintain, on interdigitation of the coil, a degree of interengagement which is sufficient to provide and maintain a tunnel (16) to receive a pintle wire (15) into engagement therewith. It is suggested that the coils be such as to be capable of interdigitation by a mechanical device such as, for example, a slider (22).

Abstract: A top stop for a water-tight slide fastener includes a generally C-shaped inner sealing body for water-tightly surrounding a diamond of a slider when the slide fastener is fully closed, and a generally C-shaped outer sealing body integral with the inner sealing body and extending around the outer periphery of the inner sealing body for water-tightly covering the flared mouth of a Y-shaped guide channel of the slider when the slide fastener is fully closed.

Abstract: A fluid-tight slide fastener stringer has a fluid-tight tape including a longitudinally non-stretchable and transversely stretchable woven or knit fabric wholly covered with a layer of elastic rubber or synthetic resin. The tape has non-stretchable warp inlaid threads and stretchable weft inlaid threads. The laterally stretchable tape serves as a shock absorber for reducing the intensity of external lateral pulling forces exerted on the tape.

Abstract: A fluid-tight slide fastener comprising a pair of stringers each having a support tape and a row of coupling elements mounted on and along a folded inner longitudinal tape edge, a slider slidably mounted on the opposed rows of coupling elements, and an end stop mounted on the tapes and having embedded therein a length of the folded edge. Each folded edge includes a sealing abutment extending over a specified length of permenently interengaged coupling element rows adjacent the end stop. The opposed sealing abutments define a substantially inverted "V" cross-sectional profile.

Abstract: An end stop for slide fasteners includes a rectangular block molded on a portion of folded inner longitudinal tape edges including a plurality of coupling elements mounted thereon, and an integral peripheral seat attached to opposed stringer tapes. The block has an end wall engageable with the slider, and a recess extending in the end wall and defined by and between the block and a portion of the peripheral seat. The portion of the peripheral seat terminates slightly short of the end wall of the block with the result that the slider is brought into abutment with the block without interference with the peripheral seat. The recess serves to absorb shock force which would otherwise be transmitted directly to the peripheral seat when the slider impinges on the block.

Abstract: A fluid-tight slide fastener comprises a pair of stringers each having a water-proof support tape and a row of coupling elements mounted on and along a bent inner longitudinal edge of the support tape, a slider slidably mounted on the two rows of coupling elements to take the latter into and out of coupling engagement with each other to close and open the slide fastener, and a top end stop mounted on upper ends of the support tapes and having embedded therein a length of the folded edges. The bent inner longitudinal edge has throughout the length thereof a pair of upper and lower sealing abutments disposed on opposite sides of an intermediate portion folded around the row of coupling elements. The upper sealing abutments are spaced from one another by a first distance substantially equal to the width of a diamond of the slider while the lower sealing abutments are spaced from one another by a second distance smaller than the width of the slider diamond.

Abstract: A watertight slide fastener stringer comprises a series of coupling elements mounted on a watertight stringer tape along a longitudinal edge portion thereof. Each coupling element includes a pair of upper and lower halves or members disposed one on each side of the stringer tape and joined by at least one integral connector extending through the stringer tape. Each of the coupling element members has a coupling portion including a support portion disposed on a thickened sealing member which is disposed on the longitudinal tape edge, a neck portion on the support portion, and a coupling head on the support portion integral with the neck and projecting beyond the thickened sealing member. The support portion and the neck portion jointly define therebetween a pair of recesses opening away from the plane of the stringer tape for receiving therein the coupling heads of mating coupling elements.

Abstract: A fluid-tight slide fastener stringer has a fluid-tight tape chiefly made of rubber or synthetic resin on which tape a series of discrete coupling elements are supported along an inner longitudinal margin of the tape. The tape margin is folded so as to provide therealong a pair of spaced contact portions and a folded edge portion disposed between the contact portions. The tape has a foamed layer extending in and through at least the contact portions and the folded edge portion. At least the margin of the resultant tape is excellent in ability of restitution, causing an improved fluid-tightness between the opposed stringers.

Abstract: A water-resistant slide fastener has a pair of water-resistant transversely stretchable stringer tapes having reinforced marginal edge portions, respectively, each including an elastically deformable core tape, and a pair of rows of coupling elements mounted on the reinforced marginal edge portions, respectively, and engageable with each other across a central axis. The reinforced marginal edge portions have a pair of confronting edges projecting toward each other beyond the central axis when the rows of coupling elements are out of mutual engagement. Each of the stringer tapes has a woven or knitted foundation tape and a soft sealing layer on the foundation tape. Each of the reinforced marginal edge portions includes a folded marginal tape edge portion with the soft sealing layer disposed outside. The core tape is sandwiched between the folded marginal tape edge portion and a major portion of one of the stringer tapes.

Abstract: A fluid-tight slide fastener of the type in which an inner longitudinal edge portion of each of opposed tapes is folded so as to extend around base portions of successive I-shaped coupling elements and in which successive U-shaped first clamping strips surround, in clinched form, the folded edge portion over the base portion of the respective coupling element, each of opposed top stops includes an elongate plate of an I-shaped cross section corresponding to the shape of the coupling elements and having a base part surrounded by the folded edge portion of the tape, and a second clamping strip of a C-shaped cross section corresponding to the shape of the first clamping strips and surrounding, in clinched form, the folded edge portion over the base part of the elongate plate. When the slide fastener is fully closed, the opposed top stops are entirely received in the guide channel of a slider.

Abstract: A mechanically strong, airtight, watertight seam provides for joining two panels of industrial strength fabric or material. The inventive seam has two connection systems. One system is a mechanically strong structural connection which is used to make the seam as strong as the fabric panel material. A second system is an all plastic slide closure in the form of a zipper connection which overlies the structural connection, joins the panels into a single cover, and makes the seam airtight, watertight and maintenance free.

Abstract: A closure strip, or zipper, for plastic bags or the like, in which the zipper is to be applied to bag material to form zipper bags. A generally conventional zipper configuration is used, and the mounting flanges for mounting the zipper to the bag material are formed thinner than the body of the zipper to reduce the difference in thickness between the mounting flange and the bag material. Additionally, the inner edges of the inner mounting flanges are tapered so the mounting flanges merge gently into the bag material, allowing uniform welding of the side seam of the bag, the material flowing smoothly to prevent holes in the side welds of the completed bag.

Abstract: A fluid-tight slide fastener comprises a pair of stringer tapes each having an inner edge region, an outer edge region and a stretchable region intermediate between the two edge regions which are non-stretchable. The intermediate stretchable region yieldingly takes up any transverse stresses which would otherwise act upon the inner edge region to split apart the fastener halves and produce leakage therethrough.

Abstract: A sliding clasp fastener comprising a pair of support tapes carrying rows of coupling elements thereon and a slider adapted to couple and uncouple the rows of elements. The elements are formed from a plastic monofilament into a continuous spiral or meander formation. The monofilament is provided with a multiplicity of indents arranged to extend longitudinally thereof, the indents being filled with a lubricative agent.

Abstract: A fluid-tight sealing slide fastener includes a pair of rows of coupling elements mounted respectively on inner opposite edges of a stringer tape, an elastomeric top stop mounted on the stringer tape around a terminal opening at ends of the rows of coupling elements, and a slider for taking the rows of coupling elements into and out of intermeshing engagement. The slider includes a slider body having a pair of upper and lower plates interconnected by a diamond, a presser having a plurality of pins extending through the upper plate, and a screw having a threaded shank threaded in a cylindrical body on the upper plate of the slider body and a head acting on the presser. When the slide fastener is closed and the screw is tightened, the pins are pressed against the top stop which is resiliently pressed against the lower plate and the diamond of the slider body to provide fluid-tight sealing between the top stop and the slider.

Abstract: A fluid-tight slide fastener comprises a pair of slide fastener halves each including a support tape, a row of continuous coupling elements extending longitudinally along the inner edge of the tape on one side thereof, and an elastomeric sealing member overlying the other side of the tape. The tape has a longitudinal ridge substantially defining the inner edge and supporting the row of coupling elements laterally longitudinally by means of stitching threads. A portion of the threads is disposed adjacent to the ridge to prevent the latter from moving remotely from the coupling elements row for thereby supporting the ridge intimately enough to ensure the abuttment of opposed sealing edges of the tapes when the fastener halves are coupled together.

Abstract: A watertight slide fastener comprises a resilient bifurcated seal member mounted on opposite stringer tapes adjacent to one end of a pair of rows of coupling elements and snugly receivable in a Y-shaped guide channel in a slider body. The seal member has a pair of resilient tongues extending from said one end of the rows of coupling elements along opposed inner longitudinal edges of the stringer tapes and a head interconnecting the tongues at their upper end so as to define therebetween a first slot or facing opening toward said one end of the rows of coupling elements and snugly receptive of a neck of the slider body when the slider is in its uppermost position. The tongues have outer sidewalls sealingly engageable with side flanges of the slider body and opposed inner sidewalls sealingly engageable together when the slider is in the uppermost position.

Abstract: A fluid-tight slide fastener stringer comprising a support tape made of a fluid-tight soft material, and a row of discrete coupling elements mounted on the tape along an inner longitudinal edge portion thereof. Such tape margin is folded so as to provide therealong a contact portion engageable with a corresponding contact portion of a like companion stringer to effect a fluid-tightness between the two stringers. In order to absorb or reduce undue stress exerted on the individual coupling elements, each coupling element has a slot extending parallel to the general plane of the stringer transversely through the whole width of a coupling head portion and also extending longitudinally of the same coupling element through the coupling head portion into a base portion.

Abstract: An adjustable fastener which comprises a rail having a plurality of spaced-apart stop elements affixed thereto along the length thereof, and a slider fit on the rail for adjustable sliding movement therealong. The rail is manufactured by affixing the stop elements to at least one flexible connecting member at a predetermined pitch therealong by means of extrusion or injection molding. Various embodiments of the rail are disclosed.

Abstract: A water-resistant slide fastener stringer has a stringer tape including face and back layers of resilient and water-resistant elastomer, a row of coupling elements mounted on the stringer tape along one longitudinal edge thereof, and layers of resilient and water-resistant elastomer integral with the face and back layers and including portions interconnecting adjacent ones of the coupling elements and having lateral slots extending transversely of the stringer tape. The coupling elements are securely fastened to the stringer tape by the resilient and water-resistant layers. The stringer is kept relatively flexible by the slots in the layers extending across the coupling elements.

Abstract: A water-tight, air-tight or otherwise sealing slide fastener has a series of discrete coupling elements secured to a support tape, a connecting cord extending longitudinally through and interconnecting the series of individual elements in equally spaced relation and a series of sealing strips each clamping a region of the tape which is folded around the elements. The connecting cord is dimensioned to fill the interspaces between adjacent elements so as to prevent entry of foreign matter.