US3884168A - Method of making slide-fastener halves - Google Patents

Method of making slide-fastener halves Download PDF

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Publication number
US3884168A
US3884168A US381441A US38144173A US3884168A US 3884168 A US3884168 A US 3884168A US 381441 A US381441 A US 381441A US 38144173 A US38144173 A US 38144173A US 3884168 A US3884168 A US 3884168A
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United States
Prior art keywords
tape
shank
loop
turn
turns
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Expired - Lifetime
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US381441A
Inventor
Helmut Heimberger
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Opti Holding AG
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Opti Holding AG
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Publication date
Priority to DE2235828A priority Critical patent/DE2235828C2/en
Priority to NL7310034.A priority patent/NL156582B/en
Priority to JP48082583A priority patent/JPS5047729A/ja
Application filed by Opti Holding AG filed Critical Opti Holding AG
Priority to US381441A priority patent/US3884168A/en
Priority to US05/475,263 priority patent/US3964135A/en
Application granted granted Critical
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    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44BBUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00Slide fasteners
    • A44B19/24Details
    • A44B19/40Connection of separate, or one-piece, interlocking members to stringer tapes; Reinforcing such connections, e.g. by stitching
    • A44B19/403Connection of separate interlocking members
    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44BBUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00Slide fasteners
    • A44B19/24Details
    • A44B19/40Connection of separate, or one-piece, interlocking members to stringer tapes; Reinforcing such connections, e.g. by stitching
    • A44B19/406Connection of one-piece interlocking members
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/25Zipper or required component thereof
    • Y10T24/2518Zipper or required component thereof having coiled or bent continuous wire interlocking surface
    • Y10T24/2523Zipper or required component thereof having coiled or bent continuous wire interlocking surface with core encircled by coils or bends
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/25Zipper or required component thereof
    • Y10T24/2518Zipper or required component thereof having coiled or bent continuous wire interlocking surface
    • Y10T24/2527Attached by stitching

Definitions

  • ABSTRACT A preformed multiturn coupling element of the helicalcoil or meander type is juxtaposed with a tape and a loop is formed by a stitching thread whose needle is thrust upwardly between each pair of turns.
  • a gripper engages the loop and draws it laterally out of the coupling element to reintroduce it between another pair of turns where it is engaged by another loop thrust through the tape.
  • This invention relates to a method of amking-a slide fastener, More particularly, this invention relates to a method of making such a half from a textile tape and a preformed monofilarnentary coupling element,
  • a slide fastener usually comprises a pair of textile support tapes each carrying on one longitudinal edge a coupling element, A slider is displaeeable along these elements to join them together and separate them,
  • a coupling head is formed in the filament between the two shanks of one turn, and the upper shank of each turn is connected by a bight to the lower shank of the upstream turn and the lower shank of each turn is similarly connected to the upper shank of the downstream turn, or vice versa
  • each turn has a bight portion connecting each shank to the shanks of the turns on each side
  • the shanks may lie directly one above the other, seen in a projection orthogonal to the plane of the tape, or may be oppositely inclined as in a true helix,
  • Such coupling elements are secured to the support tape as a general rule by stitching,
  • the stitching usually overlies the two shanks of the fastener, two rows of stitching usually being employed to insure secure fastening,
  • Another object is the provision of an improved method for securing a coupling element to a support ta e,
  • each stich is pulled laterally away from the coil away from the coupling heads thereon and is thereafter returned under'the next turn and released once the next loop is passed therethrough,
  • the coupling element is closed in projection and is provided with a longitudinally throu'ghgoing filler cord, The loops each pass up through the cord, then under the next turn where the next loop passes through it,
  • This method forms a type 203 chainstitch according to Federal Standard No, 751a of Jan.- 1965,
  • the arrangement of FIG 5 has two rows of stitching 2e which cross over each other:
  • FIG. 3 shows a method similar to that of FIG. 1 wherein the coil 3 is provided with a longitudinally throughgoing filler cord 12 through which the needle 8 pierces.
  • the individual loops 7' here go from above the cord 12 to below it, passing under the one lower shank b and under the next so that the filler cord 12 holds the coil 3 down.
  • a slide-fastener made with stringer halves 1, 2, 3, according to this invention has its stitching 2 completely received within the coil so that the slider will not wear through the stitches as it is displaced along the fastener, thereby giving the fastener a much longer service life. Since a preformed coil is used the production speed is greatly increased as the controlling factor becomes the stitching speed of the sewing apparatus.
  • a method of making a slide-fastener stringer half comprising the steps of:
  • a method of making a slide-fastener stringer half comprising the steps of:
  • a method of making a slide-fastener stringer half comprising the steps of:
  • steps (c) and (d) for the succeeding turns of said monofilament while advancing same and said tape through said station, a pair of such loops being passed through said tape and said other loop being passed through both of said first loops of said pair.
  • a method of making a slide-fastener stringer half comprising the steps of:

Landscapes

  • Slide Fasteners (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

A preformed multiturn coupling element of the helicalcoil or meander type is juxtaposed with a tape and a loop is formed by a stitching thread whose needle is thrust upwardly between each pair of turns. A gripper engages the loop and draws it laterally out of the coupling element to reintroduce it between another pair of turns where it is engaged by another loop thrust through the tape.

Description

United States I Patent 1 Heimberger May 20, 1975 METHOD OF MAKING SLlDE-FASTENER HALVES [75] Inventor: Helmut Heimberger,Grenzach,
Germany [73] Assignee: Opti-Holding AG, Glarus,
Switzerland [22] Filed: July 23, 1973 21 Appl.No.: 381,441
[30] Foreign Application Priority Data July 21, 1972 Germany 2235828 [52] US. Cl. 112/265; 24/205.16 C [51] Int. Cl. A44b 19/12; A44b 19/34 [58] Field of Search 2/265; 112/104, 113, 265; 24/2051 C, 205.16 C, 205.13 C
[56] References Cited UNITED STATES PATENTS 2,910,755 11/1959 Hansen 24/2051 C INITIAL PosrrIoN 0F GRIPPER \U MOTION OF GRIPPER 3,283,379 ll/l966 Burbank 24/2051 C 3,665,561 5/1972 Heimberger 24/2051 C 3,750,605 8/1973 Warburton et al. 1 12/265 Primary ExaminerWerner H. Schroeder Attorney, Agent, or Firml(arl F. Ross; Herbert Dubno [57] ABSTRACT A preformed multiturn coupling element of the helicalcoil or meander type is juxtaposed with a tape and a loop is formed by a stitching thread whose needle is thrust upwardly between each pair of turns. A gripper engages the loop and draws it laterally out of the coupling element to reintroduce it between another pair of turns where it is engaged by another loop thrust through the tape.
4 Claims, 5 Drawing Figures PATENTED M01975 3,884,168
SHEET 10F 3 INITIAL POSITION\- OF GRIPPER MOTI OF GRI ER PATENTED HAY 2 0 I975 SHEET 2 OF 3 PATENTEU rmzoms 3,884,168
SHEET 3 0r 3 1 METHOD OF MAKING SLIDE-FASTENER HALVES FIELD OF THE INVENTICN This invention relates to a method of amking-a slide fastener, More particularly, this invention relates to a method of making such a half from a textile tape and a preformed monofilarnentary coupling element,
BACKGROUND OF THE INVENTION A slide fastener usually comprises a pair of textile support tapes each carrying on one longitudinal edge a coupling element, A slider is displaeeable along these elements to join them together and separate them,
in one common construction the coupling element is a synthetic=resin monofilament, usually made of a poly= amide such as Nylon, having a plurality of turns So= called meander types of coupling elements have vari= ously shaped turns and are often Ll=shaped or open as seen in longitudinal projection. The more common coupling element is of the coil type, wherein the mono= filament has a helocoidal shape and is O=shaped or closed longitudinal projection, This latter type has turns each formed by a lower shank lying on the respec= tive stringer tape and an upper shank above the lower shank relative to the tape, A coupling head is formed in the filament between the two shanks of one turn, and the upper shank of each turn is connected by a bight to the lower shank of the upstream turn and the lower shank of each turn is similarly connected to the upper shank of the downstream turn, or vice versa, in the so= called modified meander or coil type each turn has a bight portion connecting each shank to the shanks of the turns on each side, The shanks may lie directly one above the other, seen in a projection orthogonal to the plane of the tape, or may be oppositely inclined as in a true helix,
Such coupling elements are secured to the support tape as a general rule by stitching, The element is ex= actly positioned on the tape and is stitched thereto, The stitching usually overlies the two shanks of the fastener, two rows of stitching usually being employed to insure secure fastening, Alternately the monofilament is fed to the sewing station as a straight element and is there formed into a coil or meander as the stitching pro= greases, This latter method is quite slow since the vari= ous motions necessary to both stitch and form a cou= pling element turn by turn are considerable: The for= mer method has the disadvantage that the rows of stitching overlying the turns of the element are subject to considerable wear by use of the garment in which the fastener is mounted and by displacement of the slider,
@EJECTS GE THE lNVENTlCN it is, therefore, an object of the present invention to provide an improved method ofmaking a slide=fastener stringer half:
Another object is the provision of an improved method for securing a coupling element to a support ta e,
Tet another object is a method of making a slide= fastener stringer which is rapid and simple,
SUMMARY OF THE lNVENTlON These objects are attained according to the present invention in a method wherein a preformed monotila= ment coupling element is juxtaposed with the tape and a loop of thread is passed up through the tape and over the shank of the turn lying on the tape, then under the next turn, Another loop of this thread is then passed up through this loop and over the next shank, and under the following turn and so on The coupling element in this fashion is secured to the tape by a simple chain= stitch whose loops overlie the lower shanks of each turn:
According to another feature of this invention the loop of each stich is pulled laterally away from the coil away from the coupling heads thereon and is thereafter returned under'the next turn and released once the next loop is passed therethrough, This displacement is effected by a gripper of the type known in the sewing (chain=stitching) art;
In accordance with yet another feature of the present invention the coupling element is closed in projection and is provided with a longitudinally throu'ghgoing filler cord, The loops each pass up through the cord, then under the next turn where the next loop passes through it,
DESCRIPTICN OF THE DRAWING SPECiElC DESCRlPTlON As shown in F164 a slide=fastener stringer half is formed of a support tape 1 to which is secured a pre= formed polyamide monotilament 3 formed with turns 4 having upper shanks Ea, lower shanks 5b, coupling heads 10, and connecting bights 11 as described above. FIGS: 2, 4 and 5 illustrate how in a projection orthogo= nal to the plane of the tape 1 the upper shanks ea over= lie the lower shanks 5b,
The coil 3 is secured to the edge of the tape 1 bysuc= cessively laying its shanks 5b on this tape and percing the tape 1 with a needle 8 carrying a thread 2. A grip= per 9 engages the thread 2 in a manner well known in the art and forms a loop 7 which, as shown in dot=dash lines in FIG: 1 is first drawn back from between the turns 4, and then forward under the shank 5b of the neat succeeding turn while the needle 8 withdraws downwardly, Thereafter, the needle again pierces the textile tape 1 between the next two turns 4 and through the loop 7 held by the gripper 9 which then releases this loop and hooks the thread 2 on the needle 8 to form an= other stitch in the same manner, This method forms a type 203 chainstitch according to Federal Standard No, 751a of Jan.- 1965,
This method may be expanded by the use of two nee= dies 8 and a single gripper 9 to produce an embodiment as shown in Fi 2 with a double stitching 2a, Two par= allel rows of stitching 2b can also be used as shown in FIG 4. The arrangement of FIG 5 has two rows of stitching 2e which cross over each other:
FIG. 3 shows a method similar to that of FIG. 1 wherein the coil 3 is provided with a longitudinally throughgoing filler cord 12 through which the needle 8 pierces. The individual loops 7' here go from above the cord 12 to below it, passing under the one lower shank b and under the next so that the filler cord 12 holds the coil 3 down.
A slide-fastener made with stringer halves 1, 2, 3, according to this invention, has its stitching 2 completely received within the coil so that the slider will not wear through the stitches as it is displaced along the fastener, thereby giving the fastener a much longer service life. Since a preformed coil is used the production speed is greatly increased as the controlling factor becomes the stitching speed of the sewing apparatus.
I claim:
1. A method of making a slide-fastener stringer half comprising the steps of:
a. feeding a support tape and a continuous syntheticresin monofilament preformed with a succession of turns each having a pair of shanks joined together at a coupling head to a sewing station so that shanks of successive turns come to lie on said tape;
b. passing a first thread loop through said tape between a pair of shanks of successive turns at said sewing station;
c. drawing said loop over one of the latter shanks;
d. thereafter swinging said loop laterally under a shank of the next turn between said shank of the next turn and said tape;
e. passing a second loop of thread through said tape between said one of said shanks and said next shank and through the first loop;
f. passing said second loop over said next shank and thereafter swinging said second loop laterally and under a third shank of a further turn; and
g. repeating steps (b) (f) for the succeeding turns of said filament while advancing same and said tape through said station.
2. A method of making a slide-fastener stringer half comprising the steps of:
a. feeding to a sewing station a support tape and a continuous synthetic-resin substantially helicoidal monofilament preformed with a succession of turns each having a pair of shanks joined together at a coupling head;
b. juxtaposing a shank of a turn of said monofilament with said tape;
c. passing a first loop of a thread through said tape adjacent said shank and under the corresponding shank of the next succeeding turn;
d. passing another loop of said thread said tape adjacent said corresponding shank of said next succeeding turn and through said first loop and thereafter passing said other loop over the corresponding shank of the next succeeding turn and under the next succeeding shank;
e. repeating steps (c) and (d) for the succeeding turns of said monofilament while advancing same and said tape through said station;
f. pulling said loops out laterally from between the turns of said coil and thereafter swinging said loop under the next succeeding turn, said monofilament being provided with a longitudinally throughgoing filler cord; and
g. passing said loops through said cord.
3. A method of making a slide-fastener stringer half comprising the steps of:
a. feeding to a sewing station a support tape and a continuous synthetic-resin monofilament preformed with a succession of turns each having a pair of shanks joined together at a coupling head;
b. juxtaposing a shank of a turn of said monofilament with said tape;
c. passing a first loop of a thread through said tape adjacent said shank and under the corresponding shank of the next succeeding turn;
d. passing another loop of said thread through said tape adjacent said corresponding shank of said next succeeding turn and through said first loop and thereafter passing said other loop over the corresponding shank of the next succeeding turn and under the next succeeding shank; and
e. repeating steps (c) and (d) for the succeeding turns of said monofilament while advancing same and said tape through said station, a pair of such loops being passed through said tape and said other loop being passed through both of said first loops of said pair.
4. A method of making a slide-fastener stringer half comprising the steps of:
a. feeding to a sewing station a support tape and a continuous synthetic-resin monofilament preformed with a succession of turns each having a pair of shanks joined together at a coupling head;
b. juxtaposing a shank of a turn of said monofilament with said tape;
c. passing a first loop of a thread through said tape adjacent said shank and under the corresponding shank of the next succeeding turn;
d. passing another loop of said thread through said tape adjacent said corresponding shank of said next succeeding turn and through said first loop and thereafter passing said other loop over the corresponding shank of the next succeeding turn and under the next succeeding shank; and
e. repeating steps (c) and (d) for the succeeding turns of said monofilament while advancing same and said tape through said station, a pair of such first loops being passed through said tape and a pair of said other loops being passed through opposite respective first loops such that the first loops cross

Claims (4)

1. A method of making a slide-fastener stringer half comprising the steps of: a. feeding a support tape and a continuous synthetic-resin monofilament preformed with a succession of turns each having a pair of shanks joined together at a coupling head to a sewing station so that shanks of successive turns come to lie on said tape; b. passing a first thread loop through said tape between a pair of shanks of successive turns at said sewing station; c. drawing said loop over one of the latter shanks; d. thereafter swinging said loop laterally under a shank of the next turn between said shank of the next turn and said tape; e. passing a second loop of thread through said tape between said one of said shanks and said next shank and through the first loop; f. passing said second loop over said next shank and thereafter swinging said second loop laterally and under a third shank of a further turn; and g. repeating steps (b) - (f) for the succeeding turns of said filament while advancing same and said tape through said station.
2. A method of making a slide-fastener stringer half comprising the steps of: a. feeding to a sewing station a support tape and a continuous synthetic-resin substantially helicoidal monofilament preformed with a succession of turns each having a pair of shanks joined together at a coupling head; b. juxtaposing a shank of a turn of said monofilament with said tape; c. passing a first loop of a thread through said tape adjacent said shank and under the corresponding shank of the next succeeding turn; d. passing another loop of said thread said tape adjacent said corresponding shank of said next succeeding turn and through said first loop and thereafter passing said other loop over the corresponding shank of the next succeeding turn and under the next succeeding shank; e. repeating steps (c) and (d) for the succeeding turns of said monofilament while advancing same and said tape through said station; f. pulling said loops out laterally from between the turns of said coil and thereafter swinging said loop under the next succeeding turn, said monofilament being provided with a longitudinally throughgoing filler cord; and g. passing said loops through said cord.
3. A method of making a slide-fastener stringer half comprising the steps of: a. feeding to a sewing station a support tape and a continuous synthetic-resin monofilament preformed with a succession of turns each having a pair of shanks joined together at a coupling head; b. juxtaposing a shank of a turn of said monofilament with said tape; c. passing a first loop of a thread through said tape adjacent said shank and under the corresponding shank of the next succeeding turn; d. passing another loop of said thread through said tape adjacent said corresponding shank of said next succeeding turn and through said first loop and thereafter passing said other loop over the corresponding shank of the next succeeding turn and under the next succeeding shank; and e. repeating steps (c) and (d) for the succeeding turns of said monofilament while advancing same and said tape through said station, a pair of such loops being passed through said tape and said other loop being passed through both of said first loops of said pair.
4. A method of making a slide-fastener stringer half comprising the steps of: a. feeding to a sewing station a support tape and a continuous synthetic-resin monofilament preformed with a succession of turns each having a pair of shanks joined together at a coupling head; b. juxtaposing a shank of a turn of said monofilament with said tape; c. passing a first loop of a thread through said tape adjacent said shank and under the corresponding shank of the next succeeding turn; d. passing another loop of said thread through said tape adjacent said corresponding shank of said next succeeding turn and through said first loop and thereafter passing said other loop over the corresponding shank of the next succeeding turn and under the next succeeding shank; and e. repeating steps (c) and (d) for the succeeding turns of said monofilament while advancing same and said tape through said station, a pair of such first loops being passed through said tape and a pair of said other loops being passed through opposite respective first loops such that the first loops cross each other.
US381441A 1972-07-21 1973-07-23 Method of making slide-fastener halves Expired - Lifetime US3884168A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE2235828A DE2235828C2 (en) 1972-07-21 1972-07-21 Process for the production of zip fasteners
NL7310034.A NL156582B (en) 1972-07-21 1973-07-19 PROCESS OF MANUFACTURING A ZIPPER, AS WELL AS A ZIPPER MADE UNDER THE APPLICATION OF THIS PROCESS.
JP48082583A JPS5047729A (en) 1972-07-21 1973-07-19
US381441A US3884168A (en) 1972-07-21 1973-07-23 Method of making slide-fastener halves
US05/475,263 US3964135A (en) 1972-07-21 1974-05-31 Slide-fastener halves

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2235828A DE2235828C2 (en) 1972-07-21 1972-07-21 Process for the production of zip fasteners
US381441A US3884168A (en) 1972-07-21 1973-07-23 Method of making slide-fastener halves
US05/475,263 US3964135A (en) 1972-07-21 1974-05-31 Slide-fastener halves

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US05/475,263 Division US3964135A (en) 1972-07-21 1974-05-31 Slide-fastener halves

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US381441A Expired - Lifetime US3884168A (en) 1972-07-21 1973-07-23 Method of making slide-fastener halves
US05/475,263 Expired - Lifetime US3964135A (en) 1972-07-21 1974-05-31 Slide-fastener halves

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US05/475,263 Expired - Lifetime US3964135A (en) 1972-07-21 1974-05-31 Slide-fastener halves

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JP (1) JPS5047729A (en)
DE (1) DE2235828C2 (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180317614A1 (en) * 2015-12-02 2018-11-08 Ykk Corporation Tape Member for Slide Fastener and Manufacturing Method of Tape Member

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5596793A (en) * 1995-02-21 1997-01-28 Davis; Gary T. Abrasion resistant slide fastener

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910755A (en) * 1956-02-16 1959-11-03 Hansen Harry Slide fasteners
US3283379A (en) * 1965-03-29 1966-11-08 Scovill Manufacturing Co Integrally woven zipper stringer
US3665561A (en) * 1969-11-28 1972-05-30 Opti Holding Ag Slide fastener stringer
US3750605A (en) * 1970-08-14 1973-08-07 Textron Ltd Sliding clasp fasteners

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253944B (en) * 1963-11-20 1967-11-09 Opti Holding Ag Zipper with a continuous row of helical links
US3249976A (en) * 1964-07-09 1966-05-10 Scovill Manufacturing Co Fastener stringer stitching
GB1237837A (en) * 1969-06-03 1971-06-30 Lightning Fasteners Ltd Sliding clasp fastener stringers
DE2150999A1 (en) * 1971-10-13 1973-04-19 Opti Holding Ag ZIPPER

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910755A (en) * 1956-02-16 1959-11-03 Hansen Harry Slide fasteners
US3283379A (en) * 1965-03-29 1966-11-08 Scovill Manufacturing Co Integrally woven zipper stringer
US3665561A (en) * 1969-11-28 1972-05-30 Opti Holding Ag Slide fastener stringer
US3750605A (en) * 1970-08-14 1973-08-07 Textron Ltd Sliding clasp fasteners

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180317614A1 (en) * 2015-12-02 2018-11-08 Ykk Corporation Tape Member for Slide Fastener and Manufacturing Method of Tape Member
US10863801B2 (en) * 2015-12-02 2020-12-15 Ykk Corporation Tape member for slide fastener and manufacturing method of tape member

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DE2235828B1 (en) 1973-09-13
US3964135A (en) 1976-06-22
NL156582B (en) 1978-05-16
JPS5047729A (en) 1975-04-28
DE2235828C2 (en) 1974-04-04
DE2235828A1 (en) 1973-09-13
NL7310034A (en) 1974-01-23

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