Abstract: A sealing zipper according to an embodiment includes a first chain portion, a second chain portion, a chain fixing portion, and a watertight portion. The second chain portion is coupled to the first chain portion. The chain fixing portion is coupled to one end portion of the first chain portion and one end portion of the second chain portion. The watertight portion is positioned between the first chain portion and the second chain portion and disposed to be partially inserted into the chain fixing portion.

Abstract: A multi airtight type rail zipper may be attached to or installed on a flexible material, such as an envelope, for storing an object. The multi airtight type rail zipper includes a first zipper rail, a second zipper rail formed in a shape corresponding to that of the first zipper rail, and a slider provided to surround the first zipper rail and the second zipper rail such that, according to the direction of sliding movement, the first zipper rail and the second zipper rail engage with and are fastened to each other, or disengage and are unfastened from each other. The multi airtight type rail zipper can improve the sealing force by the more stable fastening structure.

Abstract: A sealed zipper assembly includes a first zipper segment and a second zipper segment in overlapping relation to create a sealing zone. A sealing element is positioned in the sealing zone to prevent leakage between the first zipper segment and the second zipper segment.

Abstract: A method of sealing a zipper closure has a first waterproof element in the form of a sealing zone base and a second waterproof element in the form of a waterproof interlocking zipper fastener. The first waterproof element and the second waterproof element are placed in overlapping engagement to define a sealing zone. One or more sealing elements are placed in the sealing zone to prevent leakage.

Abstract: A zipper guide is provided to facilitate closure of an open-ended zipper. The zipper guide includes a base to which a zipper tape pin end is attached and a slider to which a zipper tape box end is attached. A key on a lower surface of the slider slides in a trench in an upper surface of the base at an orientation that guides the attached zipper tape box end toward the attached zipper tape pin end by planar sliding movements of the slider lower surface with respect to the base upper surface.

Abstract: A child-proof locking system for a slide fastener includes a slide which engages a pair of molded plastic interlocking strips. The slide is carried in a puller having a proximal grip and a distal latch. When the slide fastener is closed, the puller seats in a strike, with the latch having a plurality of arms abutting a distal end of the strike to lock the puller. To open the slide fastener, the latch arms are pressed inwardly with one hand, to clear the strike, while the grip is pulled away from the strike with the other hand.

Abstract: A knitted slide fastener in which a stable knitted mode of a knitting structure is maintained, and a fastener element row is strongly attached to a warp knitting fastener tape. A fixing chain knitting yarn of the fastener element row in the fastener element attaching portion and knitting yarns configuring a ground structure are knitted with independent single structures, respectively. Needle loops which are connected to each other in a longitudinal direction of the fixing chain knitting yarn mounts each of element legs of the continuous fastener element row, sinker loops which are connected to each other in the longitudinal direction of the fixing chain knitting yarn go under a sinker loop of a second warp knitting yarn which configures the ground structure and cross each other.

Abstract: A waterproof, airtight, anti-slit, high transverse tensile strength double-layer zipper made by: stitching a continuous polyester chain to a middle part of a broad-width fabric tape and then separating the continuous polyester chain into left and right series of interlocking teeth after zipper chain tape dyeing and drying and gluing processes, and then folding up the zipper chain tape and stitching up the open side of the folded zipper chain tape so as to obtain a single-sided double-layer zipper chain tape, and then using a zipper slider to couple two single-sided double-layer zipper chain tapes, thereby obtaining a waterproof, airtight, anti-slit, high transverse tensile strength double-layer zipper. Alternatively, the continuous polyester chain can be stitched to the broad-width fabric tape near its one lateral side for making a high-strength double-layer zipper with less fabric consumption.

Abstract: There is provided a liquid-tight slide fastener capable of sufficiently ensuring waterproof property regardless of where fastener elements are formed and capable of sufficiently ensuring attachment strength of the fastener elements to fastener tapes provided with liquid-tight layers. There is also provided a manufacturing method for the liquid-tight slide fastener. The liquid-tight slide fastener includes a pair of fastener tapes that include a pair of tape members, core sections respectively provided on opposing tape edges of the pair of tape members, and liquid-tight layers formed on one side of the pair of tape members; a pair of fastener element rows; and a slider. The liquid-tight layers are formed with gaps to the core sections in a width direction of the fastener tapes. The fastener elements are attached to the core sections.

Abstract: A safety device for a piece of luggage includes a first outside zipper (1) and a second inside zipper (2). The two zippers (1, 2) are superposed in the immediate proximity of one another, such that the teeth (1a, 2a) of the zippers (1, 2) touch under the action of external pressure on the outside zipper (1) by a tip (P) or a pointed tool, by keeping the teeth of the outside zipper (1) from dislocating downward under the pressure of the tip or the pointed tool (P).

Abstract: A docking seal system has a first flexible enclosure with a first coupling seal and a second flexible enclosure with a second coupling seal. Each of the coupling seals has first and second sealing strips. A first zip slide is engageable with the first and second sealing strips of the first coupling seal and a second zip slide is engageable with the first and second sealing strips of the second coupling seal so that the respective first and second coupling seals can be opened and closed. The first and second zip slides are each combined with a respective portion of a coupling slide to form respective combined slides. When the combined slides are combined together, the respective portions of the coupling slides mate together to form the coupling slide, the coupling slide engaging or disengaging the first and second coupling seals so as to dock or separate the first and second flexible enclosures from one another.

Abstract: A reclosable fastener strip for securing to a film web comprises first and second flangeless, elongated profile strip having a plurality of interlocking hooks, recesses and protuberances. Each hook, as extruded, has a half arrowhead-shaped tip, a concave or partial-concave tail, and a generally upstanding neck connecting the tip and tail. Each recess has a base with a pair of generally upstanding neck elements disposed on opposite ends of the base. The base does not extend laterally beyond the neck elements. Each protuberance, as extruded, has a rounded tip, a concave or partial-concave tail, and a generally upstanding neck portion connecting the tip and tail. The profile strips are readily secured to the web without entrapping air between the profile strips and the film web and form an airtight and watertight seal. The interlocking hooks, recesses and protuberances are dimensioned to provide and airtight and watertight seal upon interconnection thereof.

Abstract: A reclosable fastener assembly (10) for use in the manufacture of a plastic bag (30). The fastener assembly (10) includes a zipper (18) with a seal feature on a web flange (24) extending from an interlocking member (26) of a profile (28) of the zipper (18). The web flange (24) is bent at a lower portion of the web flange (24) upward to the interlocking member (26). At the lower portion, an interior face (32) of the web flange (24) is sealed to an opposite interior face (33) to form a flange seal (31). The bend (35) of the lower portion includes a weakness area (34) which, in concert with the flange seal (31), acts as a barrier and a tamper-evident feature. After the flange seal (31) is initially torn open, the weakness area (34) may be torn open to access the plastic bag (30). A method for making a reclosable plastic bag (30) is also disclosed.

Abstract: A slide fastener has a coating of waterproof plastics material formed by extrusion onto the closed fastener. The slide fastener comprises two woven elongate stringers, each having a series of spaced locking members which interlock when the fastener is closed, and coating which encloses the fastener and includes a longitudinally slit projection formed on each side of the locking members. The fastener has improved waterproofing as the fastener is fully enclosed by the plastics material when it is closed, and the plastics material moulds itself round both sides of the locking members.

Abstract: A water resistant slide fastener, including a pair of stringer tapes each having first and second opposed surfaces and each having a series of gripper elements positioned along edges of said first surface; and a water resistant layer on said second surfaces, wherein said water resistant layer has an adhesion to said stringer tapes of at least about 6 lb/in.

Abstract: A double-layer water-proof zipper in which the slide has an additional second interlocking unit moved with the slide to close a water-proof layer so as not to let rain pass through the interlocked teeth of the zipper tape unit of the zipper. The water-proof layer includes two water-proof tapes, the water-proof tapes each having two longitudinally extended parallel grooves and two longitudinally extended protruding portions respectively raised along said parallel grooves at one side for interlocking.

Abstract: A linear profile, which is self-sealing by mechanical engagement comprising an elastic element (100), engagement elements (20) and a slider (31); the elastic element (100) consists of a pair of seals (2), specular or preferably complementary with hollows (15) facing in opposite directions; each seal (2) having a honeycombed rib (14) in which cavities (13) are made for insertion of the engagement elements (20); the slider (31) is able to abut against the engagement elements (20) to bring about closure of the seals (2).

Abstract: The present invention is directed to a fluid resistant structure to be incorporated with conventional fastening systems such as slide fasteners. Two sheaths are attached or incorporated into a closable structure, in overlapping fashion, at or near the opening of the structure. Each sheath has associated therewith a semi-rigid bead portion at its mesial portion. The length of the bead portions is generally longer than the chord length of the opening so that a slight, to pronounced, arch or bow of the beads is formed. When the structure is closed, one bead is manipulated over and laterally adjacent to the other bead, thereby forming a lateral compression abutment between the two beads. The lateral abutment is maintained due in part to the arch or bow formed by the difference between the bead length versus the chord length.

Abstract: An improved water resistant slide fastener and method of producing a water resistant zippered seam is disclosed. A thin and flexible water resistant coating is employed on the inside and outside surfaces of the stringer tapes of the slide fastener to eliminate water penetration therethrough. Once the slide fastener is attached to a garment or other article, a water resistant seam sealing tape employing a compatible adhesive is then installed over the attachment means of the stringer tape to protect further against water penetration. The zipper of the present invention is flexible and comfortable to wear, while being fully effective at preventing unwanted water penetration without the need for costly and cumbersome additional barrier layers.

Abstract: A cover is provided for the ends of one or more zippers, especially gas-tt and liquid-tight zippers with ends that extend toward each other in a straight line or at a particular angle. The cover consists of a lower plate and an upper plate with the zipper tapes and chains clamped between them, a seal disposed between the lower plate and the upper plate, and a disengageable connector that secures the lower plate to the upper plate.

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 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: 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 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 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 water-resistant slide fastener stringer comprises a water-resistant support tape and a pair of rows of coupling elements mounted on opposite surfaces of the support tape. In production, the two coupling element rows are attached to one or water-resistant surface of a continuous water-resistant strip in a confronting relation to one another. Then the strip is folded into a pair of superposed strip halves along a longitudinal line between the opposed coupling element rows. Finally, the confronting inner surfaces of the strip halves are joined to one another in a known manner, e.g. by an adhesive.

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 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: A method and apparatus is provided for attaching and detaching two flexible panels, each of which has an opening defined by mating parts of a continuous flexible fastener strip. An elongated slide member has four generally elongated passages which includes merging parts at one end thereof to receive the fastener strip parts. The passages separate in the central part of the slide member, twist 90.degree., and have parts merging different ones of the passages at the other end of the slide member to bring the fastener strips into contiguous relation with their mating parts arranged such that one part of each fastener strip is mated with an opposite part of the other fastener strip by moving the slide member along the strips, simultaneously and progressively separating the mating parts of the fastener strips and joining the parts of one fastener with opposite parts of the other fastener.