Abstract: A closure assembly includes a slider for opening and/or closing an elongate closure mechanism including a pair of opposing closure members. The slider includes a first separator finger and a second separator finger, each of which is articulably connected to a hinge member. The first and second separator fingers extend between the closure members and may be articulated between a closing position, in which the separator fingers are adjacent each other, and an opening position, in which the separator fingers are laterally spaced from each other. In the opening position, the separator fingers urge the members apart. Closing bars and retention members may also be included to facilitate re-closing the closure members and retaining the slider in an operative position thereon.

Abstract: A slider for use with an elongate closure mechanism includes a retention member protruding into a medial space between an upper pair of opposing interlocking members and a lower pair of opposing interlocking members. The retention members define a gap through which the upper pair of opposing interlocking members cannot pass, and that allows the slider to be slidably shifted along the length of the closure mechanism, thereby maintaining the slider operatively disposed thereon. The retention members may have the form of one or more protrusions disposed on an interior surface of a channel sidewall spaced between a top end of the channel sidewall and a bottom end of the channel sidewall.

Abstract: A device for forming a seal includes upper and lower seal members, and a slider, wherein mating surfaces of the seal members interlock. In at least one embodiment, a lifting rib and closure bar on the slider cooperate with a lifting wing and closure bar groove on the upper and lower seal members, respectively. By moving the slider in one direction, the lifting rib lifts the upper seal member from the lower seal member. Moving the slider in the opposite direction causes the upper and lower seal members to interlock. In another embodiment, a slider has an intermediate lateral member connected on one side the slider top, and connected on the other side to the slider bottom. A breakaway sealing device is also provided, allowing a person to break the closed seal. A beginning stop block is also provided that includes a means for securing the upper seal member.

Abstract: A slider for a concealed type slide fastener for securing a smooth sliding operation even if a strong laterally pulling force is applied when the slide fastener is closed. The slider includes: a lower plate having a pair of flanges each having an inverted L shaped section, the flanges erected along right and left side edges perpendicular to a sliding direction of the slider; a diamond erected toward a gap between upper plate portions of the pair of flanges from a central portion of the lower plate; and element guide portions expanded outwardly toward inside end faces of the upper plate portions from an outer periphery of the diamond, wherein the front ends of the upper plate portion in an engagement direction of the fastener elements are extended forward compared with front end of the element guide portion.

Abstract: A slide fastener slider, in which a pair of projecting portions are formed such that they project from shoulder mouth side end portions of a pair of flanges to a shoulder mouth side, the flanges being erected on both right and left sides of a lower plate. Each projecting portion is constituted of a stepped portion formed by extending from the shoulder mouth side end portion of each flange to the shoulder mouth side, and a downward slope formed from the stepped portion up to a top face of the lower plate. The pair of projecting portions allow an inclination of a leg portion of a fastener element to be returned to a substantially horizontal state, thereby preventing contact between a fastener tape and each flange to block breaking of threads in the fastener tape.

Abstract: A container (110) including a closure device (121) is disclosed. The closure device (121) includes a pair of interlocking fastening strips (130, 132) and a slider (134) for occluding and deoccluding the fastening strips (130, 132). The fastening strips (130, 132) are interlocked when the slider (134) is at a first end (136). The slider (134) includes a separator (192) that is configured to urge the fastening strips (130, 132) to wrap around the separator (192) to provide a seal when the slider (134) is at the first end (136) of the fastening strips (130, 132). The slider (134) can include a nose portion (252) for latching the slider (134) at the first end (136) of the fastening strips (130, 132). The slider (134) can include a valve (198). The slider (134) can have different configurations.

Abstract: A slider is provided that may be oriented on a closure assembly of a reclosable pouch to open and/or close the pouch. The slider includes a top portion and at least two side walls. A channel is formed between the side walls for receiving the closure assembly of the pouch therebetween. Internal to the slider are components that generally contain functionalities to assist in opening and/or closing the closure assembly depending on the direction of movement of the slider along the closure assembly.

Abstract: A concealed type slide fastener comprises two fastener tapes having their opposed edges folded thereon; two rows of fastener elements mounted on the folded edges; a top end stop mounted a fastener element row; and a slider movable along the element rows. The slider 1 has a slider body and a guidepost mounted on the body to define therewith a guide channel through which the element rows run. The guidepost has a sliding surface formed on each side and an overhanging element-guiding portion extending from the upper end of the sliding surface. The concealed type slide fastener further includes means for preventing contact between the element-guiding portion and a corner of the top end stop which faces the element-guiding portion.

Abstract: The closure device (121) includes interlocking fastening strips (130, 131) and a slider (132) slidably disposed on the fastening strips for facilitating the occlusion and deocclusion of the fastening strips (130, 131) when moved towards first and second ends thereof. A slider (132) is provided for facilitating the attachment of the slider (132) onto the fastening strips (130, 131) in the horizontal X axis (102). The slider (132) provides resistance against the removal of the slider (132) from the fastening strips (130, 131) in the horizontal X axis (102) and the vertical Z axis (106).

Abstract: This invention relates to a concealed-type slider. Side walls are erected on both sides of a bottom plate of a body and a top end of each side wall is bent to form a flange. A guide portion is provided by forming a down-grade slope inclined from a leading end of a shoulder opening side of the flange between the flange and the side wall. The leading end of the flange provided with this guide portion is disposed at right angle to or tilted more or less toward a rear mouth side with respect to a side face of a guide post. Consequently, when an insert pin is inserted, the guide portion guides a fastener tape smoothly and when sliding the slider in its closing direction, the sliding operation can be executed smoothly.

Abstract: A reclosable bag having a bottom flap with holes configured to allow a stack of the bags to be mounted on a wicket, a slider-actuated string zipper installed in a mouth at the top of the bag, and an open string zipper, not actuated by a slider, installed at the bottom of the bag. The wicket flap has a line of weakened tear resistance, such as a perforated line, along which the bag can be torn. Product is inserted into the receptacle via the open string zipper, and then that zipper is closed. After filling, the receptacle can be separated from the flap, which remains on the wicket, by tearing along the tear line.

Abstract: A slider (10), a slider insertion apparatus (50) and a method for inserting the slider (10) on an interlocked fastener or zipper (25) of a reclosable bag (44). A loading rack (58, 72) feeds individual sliders (10) to the slider insertion apparatus (50) wherein the slider (10) is inserted on the interlocked profiles (24, 28) being held by a zipper guide (56). After insertion, a keeper (15) and retaining shoulders (19, 20) of the slider (10) secure an interlocking member (22) of the profile (24) from unintentional engagement with an interlocking member (26) of the opposing profile (28). A positioner (200) is used to move the inserted slider (10) and/or to move the attached reclosable bag (44) in conjunction with driving rollers (217) of a vertical form-fill-and-seal machine.

Abstract: The closure device (121) includes a first fastening strip (130) and a second fastening strip (131) arranged to be interlocked over a predetermined length. The first fastening strip (130) includes a first offset (169). A slider (132) slidably engages the first and second fastening strips (130 131). The slider (132) includes a first shoulder (240) and a second shoulder (242). The first shoulder (240) and the second shoulder (242) define a slot (270). The first offset (164) prevents removal of the slider (132) from the fastening strips (130, 131) through the slot (270) in a vertical Z axis (106).

Abstract: The invention relates to a closure (3) that comprises two interacting pairs of locking ribs (23, 33) that function in pairs. Said locking ribs (23, 33) are formed integrally with connecting strips (17, 21) in which guide ribs (27, 37) are configured which engage in a common glider (31). The closure (3) is opened by conical grooves (29, 39) inside the glider (31) which modify the distance between the two guide ribs (27, 37) by pushing apart and separating or reuniting and joining them.

Abstract: A slider (10) to be positioned in straddling relationship on a reclosable fastener means for a bag formed by a pair of plastic sheets having separable fastener means extending along an opening for the bag and including reclosable interlocking rib and groove profiles along the plastic sheets at said opening of the bag. The slider includes a support member (11), in use, overlying the opening to the bag and straddling the fastening means, and also carrying a separating finger (12) adapted, in use, to engage within and adapted to separate the fastening means when the slider is moved in one direction, and a pair of legs (13) depending therefrom to force the fastener means into interlocking relationship when the slider is moved in the opposite direction along the fastening means.

Abstract: Disclosed is a device for creating a seal which includes an upper seal member, a lower seal member, and a slider, wherein mating surfaces of the upper and lower seal members interlock. A lifting rib on the slider cooperates with a lifting wing on the upper seal member and a closure bar cooperates with a closure bar groove of the lower seal member. By moving the slider in one direction, the lifting rib lifts the upper seal member from its interlocking relationship with the lower seal member. Moving the slider in the opposite direction causes the upper and lower seal members to interlock. Also disclosed is a seal device which includes upper and lower seal members and a cooperating slider and plug. Each of the slider and plug cooperate with first and second mating surfaces of the upper and lower seal members. In addition, the slider and plug have an exterior tongue and groove portion which cooperate to interlock the slider and the plug.

Abstract: This invention relates to a concealed-type slider. Side walls are erected on both sides of a bottom plate of a body and a top end of each side wall is bent to form a flange. A guide portion is provided by forming a down-grade slope inclined from a leading end of a shoulder opening side of the flange between the flange and the side wall. The leading end of the flange provided with this guide portion is disposed at right angle to or tilted more or less toward a rear mouth side with respect to a side face of a guide post. Consequently, when an insert pin is inserted, the guide portion guides a fastener tape smoothly and when sliding the slider in its closing direction, the sliding operation can be executed smoothly.

Abstract: A slider device having contoured top and sidewalls is disclosed for use with a resealable package. In a first embodiment, the slider device includes an engagement structure for engaging and interlocking first and second closure profiles of a resealable closure mechanism. The engagement structure includes a first protrusion and a second protrusion depending from the top wall of the slider device for engaging first and second closure profiles of a resealable closure mechanism. The first and second protrusions selectively open and close the resealable closure mechanism as the slider device is moved from a first position to a second position. In a second embodiment, a slider device is disclosed having first and second slide channels that engage first and second closure profiles. The first and second slide channels selectively open and close the resealable closure mechanism as the slider device is moved from a first position to a second position.

Abstract: The invention relates to a closure (3) that comprises two interacting pairs of locking ribs (23, 33) that function in pairs. Said locking ribs (23, 33) are formed integrally with connecting strips (17, 21) in which guide ribs (27, 37) are configured which engage in a common glider (31). The closure (3) is opened by conical grooves (29, 39) inside the glider (31) which modify the distance between the two guide ribs (27, 37) by pushing apart and separating or reuniting and joining them.

Abstract: The closure device (121) includes interlocking fastening strips (130, 131) and a slider (132) slidably disposed on the fastening strips for facilitating the occlusion and deocclusion of the fastening strips when moved towards first and second ends thereof. Flexible shoulders (230, 232) and legs (234, 236) are disposed on the slider (132) for facilitating the attachment of the slider onto the fastening strips (130, 131) in the vertical Z axis (106). The flexible shoulders (230, 232) and legs (234, 236) further provide resistance against the removal of the slider (132) from the fastening strips (130, 131) in the vertical Z axis (106) thereafter.

Abstract: A method for 3-D engagement of a fastener, in which fastener teeth of two fastener strips received in different height-level within slider can be engaged together in the same plan by the siding action of slider. The present invention also discloses a separate-type fastener enabling 3-D engagement, comprising first and second fastener strip each of which has a plurality of equi-distance fastener teeth alternately arranged on each of two opposed long substrates respectively so that a plurality of projecting portions and recesses with corresponding shape, which can engage with the recesses and projecting portions of opposite strip, are formed on the side edge walls of fastener teeth on each of first and second fastener strips respectively, a slider having front and rear end wherein inlet ports at high-level and low-level are formed respectively at different heights of the front end.

Abstract: A slide closure for joining overlapping edges of flexible or rigid substrates having complementary touch fasteners thereon. The slide closure has a pair of closing surfaces facing each other and structure joining the closing surfaces together so as to define two channels opening in opposite directions. The substrates are received within the channels such that they overlap between the closing surfaces. The closing surfaces converge to a nip having a dimension small enough to cause the complementary touch fasteners to engage when the slide closure is displaced along the overlapping edges in a first direction. The slide closure may further include a spanning member disposed generally between the closing surfaces that serves to structurally join the closing surfaces, partly define the channels on either side, and provide diverging separating surfaces that cause the complementary touch fasteners to disengage when the slide closure is displaced in a second direction opposite the first direction.

Abstract: A reusable bi-directional, fluid-tight, vertical sealing device for closing, sealing, and permitting re-opening of, flexible bags, with two sealing strips arranged to be interlocked and uninterlocked by a slider which has internal means such as rails acting upon the sealing strips so as to move them into a vertically interlocked fluid-tight sealing contact capable of holding a vacuum without leakage and of resisting pressure differences in either direction across the seal, so that the efficacy of the seal is improved by increases in the pressure differential. The word “fluid”, is used in its usual meaning of liquid or gas or a mixture of both, and, in addition, powder, and “vertical”, herein means in the plane of interior contact of the sheets of the bag when empty and hanging vertically.

Abstract: The closure device includes interlocking fastening strips (130, 131) and a slider (132) slidably disposed on the fastening strips for facilitating the occlusion and deocclusion of the fastening strips (130, 131) when moved towards first and second ends thereof. The slider (132) is provided with a separator (172) for driving fastening strips horizontally outward at different rates. The separator (172) initially drives the fastening strips (130, 131) outward at the same rate and then continues to drive one strip outward while holding the other substantially stationary to facilitate deocclusion of the fastening strips. The fastening strips (130, 131) include guide rails (139, 143). The guide rails (139, 143) are disposed between upper and lower sets of interlocking closure portions. The slider (132) includes guide tracks (221, 222) which engage the guide rails (139, 143) on the fastening strips.

Abstract: The closure device includes interlocking fastening strips and a slider. The ends of the fastening strips are heat sealed, melted or otherwise secured together. The fastening strips include a slit near the end of the fastening strips. The slit prevents the separator of the slider from deoccluding the fastening strips when the slider is at the occluded end. The slit allows the top edge of the fastening strips to bend around the separator while the fastening strips remain occluded.

Abstract: A slide closure for joining overlapping edges of flexible or rigid substrates having complementary touch fasteners thereon. The slide closure has a pair of closing surfaces facing each other and structure joining the closing surfaces together so as to define two channels opening in opposite directions. The substrates are received within the channels such that they overlap between the closing surfaces. The closing surfaces converge to a nip having a dimension small enough to cause the complementary touch fasteners to engage when the slide closure is displaced along the overlapping edges in a first direction. The slide closure may further include a spanning member disposed generally between the closing surfaces that serves to structurally join the closing surfaces, partly define the channels on either side, and provide diverging separating surfaces that cause the complementary touch fasteners to disengage when the slide closure is displaced in a second direction opposite the first direction.

Abstract: A reusable bi-directional, fluid-tight, vertical sealing device for closing, sealing, and permitting re-opening of, flexible bags, with two sealing strips arranged to be interlocked and uninterlocked by a slider which has internal means such as rails acting upon the sealing strips so as to move them into a vertically interlocked fluid-tight sealing contact capable of holding a vacuum without leakage and of resisting pressure differences in either direction across the seal, so that the efficacy of the seal is improved by increases in the pressure differential. The word “fluid” is used in its usual meaning of liquid or gas or a mixture of both, and, in addition, powder, and “vertical” herein means in the plane of interior contact of the sheets of the bag when empty and hanging vertically.

Abstract: A slider, which can be closed easily without a separation of a chain even if a lateral pulling load is applied to the fastener chain when the linear fastener chain is closed with the slider. An element pressing face, which is in contact with an inverted portion of a linear slide fastener element and putting it thereon, is provided along an inner side face of a flange formed on each of both right and left sides of an upper wing plate or a lower wing plate of the slider. A slope is formed on the pressing face from a front end thereof up to a vicinity of a bent portion of the flange such that it intersects an inner face of the upper or lower wing plates. A vertical wall is provided from the bent portion to a rear mouth so as to be erected from the upper or lower wing plates. The pressing face is formed on the vertical wall so that the inverted portion can be guided.

Abstract: A fluidtight zip fastener includes a pair of fluidtight zip fastener carrying tapes each having a base tape with a soft covering layer. Sewn to each carrying tape is in an offset position a continuous coupling member row. A zip fastener slider is provided for transferring the zip fastener carrying tapes into an open and closed position. The slider has lower and upper plates and a slider wedge interconnecting the plates. A guide border is shaped in a central area of the slider wedge. For increasing the sealing action of the zip fastener in an end position of the slider, the interconnected two ends of the zip fastener carrying tapes are provided with a dimensionally more confined and consequently an overpressing-ensuring elastomer guiding the slider over its guide border shaped onto the slider wedge.

Abstract: The present invention provides a slider enabling a meshing position of a fastener chain inserted through a slider to be adjusted smoothly by pulling the fastener stringers in opposite directions along the fastener tape. This invention provides a slider for slide fastener wherein right and left flanges are provided on one of upper wing plate and lower wing plate of a slider body toward the other upper wing plate and lower wing plate, a wide end face portion extending in the right/left direction is provided at a front end located at shoulder side of the flange, a top surface of the pair of the flanges comprises a flat surface portion in parallel to the wing plates. Further, a protruded portion in a V-shape or upside-down V-shape is provided on the top surface from the front end to a central portion along an inner edge thereof on the flat surface portion.

Abstract: A slider device is disclosed for use with a resealable package. The slider device includes structure for preventing or minimizing the likelihood that the slider device can be removed from the resealable package. In one embodiment, the slider device includes a top wall and first and second sidewalls depending from the top wall. The first sidewall has a barb member extending inwardly toward the first closure profile of the resealable closure mechanism. The barb member is constructed and arranged to engage the first closure profile in response to a pulling force on the slider device away from the resealable closure mechanism. In another embodiment, the first sidewall also includes a hook construction defining a flange to slidably cover a shoulder of the first closure profile. The hook construction and flange define an offset that is constructed and arranged to engage the shoulder of the first closure profile in response to a pulling force on the slider device away from the resealable closure mechanism.

Abstract: A device useful in the closing of the zipper of a plastic bag has an elongate hollow body with one or more sidewalls. A linear sidewall slit is defined within the sidewalls. The sidewall slit is disposed parallel to the longitudinal axis of the body and runs along the entire length of the body. A closer element is disposed within the body. The closer element has a pair of opposed biased surfaces disposed proximate to one another to form a trough. The biased surfaces are spaced apart at the base of the trough by a closer element slit having a width which is the same or slightly smaller than the combined thickness of the plastic bag and zipper combination. The closer element slit is disposed in communication with the sidewall slit. In a typical embodiment, the intersection of the closer element slit and the sidewall slit forms a single L-shaped combined slit.

Abstract: A slider device includes a top wall, first and second sidewalls, and a separating structure. The first sidewall depends from the top wall and includes a first hooking construction. The second sidewall also depends from the top wall and includes a second hooking construction. The top wall and first and second sidewalls define a first cavity that operably receives a closure mechanism having first and second selectively engageable closure profiles. The separating structure selectively separates the first and second profiles of the closure mechanism. The separating structure includes a stabilizer and a separator. The stabilizer extends from the second sidewall and the second hooking construction into the first cavity. The stabilizer retains a lower portion of the second closure profile proximate to a lower portion of the first closure profile. The separator depends from the top wall and extends from the first sidewall into the first cavity.

Abstract: The invention provides a slider, which can be closed easily without a separation of a chain even if a lateral pulling load is applied to the fastener chain when the linear fastener chain is closed with the slider. An element pressing face, which is in contact with an inverted portion of a linear slide fastener element and putting it thereon, is provided along an inner side face of a flange formed on each of both right and left sides of an upper wing plate or a lower wing plate of the slider. A slope is formed on the pressing face from a front end thereof up to a vicinity of a bent portion of the flange such that it intersects an inner face of the upper or lower wing plates. A vertical wall is provided from the bent portion to a rear mouth so as to be erected from the upper or lower wing plates. The pressing face is formed on the vertical wall so that the inverted portion can be guided.

Abstract: A slider device for use with a resealable package includes a top wall with first and second ends, a spreader depending from the top wall, a first sidewall, a second sidewall, a first hook construction extending from the first sidewall, a second hook construction extending from the second sidewall, and a guide construction. Preferably, the slider device includes a pair of drag-reducing standoffs in projection from the sidewalls. In preferred embodiments, the guide construction includes first and second fingers projecting beyond at least one end of one of the sidewalls. The slider device is usable with a reclosable zipper arrangement defining a pair of shoulders for engaging with the hook constructions of the slider device. Certain embodiments may include ridge structure on the slider and zipper for providing tactile feedback to the user. In another embodiment, there may be a color change as the zipper changes condition from an open position to a closed, interlocked position.

Abstract: A closure arrangement includes a first closure profile, a second closure profile, a slider device, and a slider housing. The slider device is designed to open the package when slid in one direction and to seal the package when slid in the opposite direction. The slider housing extends from a side of the package. The slider housing is designed to receive the slider device. When the package is opened and the slider device is slid into the slider housing, access to the contents of the package is provided across the entire width of the mouth of the package.

Abstract: A plastic bag closer slider has a separator normally resting in notches in the tops of slider track strips, when the slider is at a bag-closed stop. As the slider is moved in the bag-opening direction, the separator is cammed downward by ends of the notches to disengage interlocking profile features and open the tag. In another embodiment, notches are omitted. The separator is manufactured with a normally down position but is resiliently biased upward when the bag is closed. As the slider is moved in the bag-opening direction, the pointed end of the separator wedge descends between the strips to open the bag. When the slider is moved in the bag-closing direction, the separator is cammed upward by the drag of the strip tops and the tapering walls of the slider squeeze interlocking profile features together, closing the bag.

Abstract: A resilient fastener or zipper, which may be incorporated as part of a bag, pouch, wrapper or liner, or which may be used as a protective garment closure, includes a pair of flexible closure strips and at least one zipper slider. The strips include interlocking ribs and channels of complementary cross-sectional shape which lock together in an interference fit. The ribs have enlarged heads, and, complementarily, the channels have enlarged bottoms. The strips also include webs to which sheet material or the like may be attached and, between the webs and the interlocking ribs and channels, an anti-derailing rib. The latter ensures that the zipper slider remains on track and does not derail from the interlocking ribs and channels when the slider is moved therealong to open or to close the zipper.

Abstract: A slide for a zip fastener including: a flat, rectangular base frame having a front and and a rear end of width smaller than the front end; a center guide plate of shape corresponding to the flat base frame but of relatively smaller size, connected in parallel to the base frame by a hemihedron support, defining with the flat base frame a space of height approximately equal to the height of the teeth of the zip fastener; two front wings raised from two opposite sides of the front end of the flat bottom frame and then turned inwards toward each other, defining with the flat base frame a respective front passage for passing the zipper tapes; and two rear wings raised from two opposite sides of the rear end of the flat bottom frame and then turned inwards toward each other, defining with the flat base frame a respective rear passage for passing the zipper tapes.

Abstract: A zipper of the type having two tapes with interconnecting teeth, a slide having a front and rear and including a divider to separate and mesh the teeth in cooperation with a pull tab attached to the slide, includes spaced wing segments formed on the slide in proximity to the front of the slide. The spaced wing segments present a profile at the front or leading edge of the slide, in which the profile takes the form of a plow. The plow-like profile is formed as a beveled surface at the leading edge, and is thus adapted to force extraneous material such as threads, fabric, and the like, away from engagement with the interconnecting teeth when the zipper is zipped to the zipped-up condition. The trailing edge, or rear, of the slide may similarly be beveled to exclude unwanted fabric when the zipper is unzipped.

Abstract: A plastic zipper slider having hinged wings is provided with an improved latch tongue which is deflected downward to snap in place. Additional flexible latch web structure cooperates with the latch tongue to provide additional forces which are active in assuring that the wings are fully latched and to also provide additional resistance to unlatching the wings.

Abstract: Plastic-film zipper bags having tubular plastic end stops bonded to the plastic zipper to seal the ends of the zipper and to provide stops to retain a slider on the zipper are disclosed. Also disclosed is a method of installing the tubular plastic end stops on the zipper.

Abstract: A plastic reclosable fastener or zipper with slider detent lock for locking the slider in closed position on plastic-film bags and the like is disclosed. The slider includes two spring-loaded detent elements located on opposite sides of the separator finger on the slider. When the slider is at any location other than the fully closed position at the end of the fastener, the spring-loaded detent elements ride against the outside surfaces of the flanges by which the separator finger opens the fastener. When the slider reaches the location at the end of the fastener where portions of the flanges have been removed to provide a notch, the spring-loaded detent elements spring inward against the sides of the separator finger. There they resist an attempt to move the slider in an opening direction because this requires that they be forced outward over the flanges of the zipper.

Abstract: A plastic reclosable fastener with slider for opening and closing the reclosable fastener on plastic-film bags and the like is disclosed. The plastic reclosable fastener and slider include a provision for restraining the slider in closed position and thereby maintaining the male and female elements of the fastener in interlocking relation to avoid inadvertent opening of the elements of the fastener when the slider reaches the fully closed position at the end of its travel along the fastener. The ends of the flanges of the fastener that are created by the slider-restraining notch are provided with diverging structure to facilitate re-entry of the slider separator structure between the flanges when the slider is moved toward the opposite end of the fastener to open the male and female elements of the fastener.

Abstract: A slide fastener slider comprises a pair of upper and lower wings joined integrally together at its front end by a diamond; and a pair of flanges disposed between the upper and lower wings and converged towards the rear end of the slider to thus define with the diamond a Y-shaped guide channel for running of fastener element rows therethrough. The slider further includes a plurality of large-diametered guide rollers rotatably mounted thereon for rolling engagement with the fastener element rows. The slider is specifically constructed such that there remain open spaces around the guide rollers, so that stringer tapes is quite immune from being stuck in the guide rollers.

Abstract: In a stringer for a slide fastener wherein coupling elements are molded on longitudinal supporting means, such as an edge of a tape or spaced connecting threads, leg portions of the coupling elements are formed with recesses to define rapidly cooled portions which are molded to the supporting means. The rapidly cooled portions eliminate porosity to produce greater adherence and strength of the polymer bonding the coupling elements to the supporting means as well as reducing cost.

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: The slider of the slide fastener comprises a slider body, a locking member which is held on the one hand by a locking portion on the slider body and on the other hand is provided with teeth. A slot provided in the locking portion forms a joint section allowing a pivoting of the locking member and a moving of the teeth into a disengagement with the slide fastener.The teeth comprise a viewed in closing direction rear inclined flank, by means of which a brake action is generated in place of a locking action if the already separated slide fastener strips are pulled laterally away from each other such that the slide fastener can be opened even in case of a missing drawing flap.

Abstract: A slide fastener slider comprises a slider body including a pair of upper and lower wings defining therebetween a Y-shaped guide channel, the lower wing having a pair of lateral flanges and a pair of corner ledges, each extending along an inner face of the respective flange through its length. The slider also has a pair of auxiliary ledges on the inner face of the lower wing adjacent to respective front ends of the flanges, each of the auxiliary ledges having a flat top surface disposed below the respective corner ledge for being engageable with the outer or lower leg portions of the respective fastener element row so as to prevent the coupling head portion of the individual fastener element from projecting into an aperture in the upper wing, through which aperture a fastener-element locking pawl is projectable, while the opposed rows of fastener elements are being coupled to close the slide fastener.

Abstract: A lockable slide fastener slider having a guide groove which allows a pair of rows of coupling elements to pass smoothly through a guide channel without entering an aperture communicating with the guide channel, even when the coupling elements are displaced toward the aperture. The guide groove is defined jointly by a bottom wall and a pair of oblique sidewalls diverging toward the guide channel, the bottom wall having a width substantially the same as that of the aperture. The peripheral wall bounding the aperture has an oblique end portion facing the guide channel and merging into the oblique sidewalls.