Patent US1598873A successfully refreshed from Google Patents.
Patent US3885273A successfully refreshed from Google Patents.
US3885273A
Expired / Lapsed
US
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Slide fastener
Assignee: Opti Holding AG
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Filing: 1974-01-25
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Granted: 1975-05-27
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Expires: 1994-01-25
Abstract
Abstract A slide-fastener stringer has a continuous extruded coupling element of thermoplastic synthetic resin with closely spaced coupling heads projecting beyond the edge of a support tape to which the coupling element is fused. The ligaments connecting the coupling heads and/or the shanks thereof are formed with humps which engage the support tape and are thermally fused (welded) thereto.
Inventors
- 👤 Helmut Heimberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:26
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/40; A44B19/10; A44B19/14; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2536; Y10T24/2539; Y10T24/2557
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
116 words
A slide fastener stringer half comprising a textile support tape and a coupling element along an edge of said tape, said coupling element comprising a multiplicity of spaced coupling members each having a coupling head adapted to interdigitate with the coupling heads of a similar coupling element on a mating stringer half, and at least one fastening portion unitarily with said head and secured to said tape, said coupling element being further provided with a connecting portion between each coupling member and adjoining coupling members, at least one of said portions being provided with an annular planar surface confronting said tape and formed with a multiplicity of humps in a surface array welded to said tape.
Claim 2
Dependent Claim
116 words
A slide fastener stringer half comprising a textile support tape and a coupling element along an edge of said tape, said coupling element comprising a multiplicity of spaced coupling members each having a coupling head adapted to interdigitate with the coupling heads of a similar coupling element on a mating stringer half, and at least one fastening portion unitarily with said head and secured to said tape, said coupling element being further provided with a connecting portion between each coupling member and adjoining coupling members, at least one of said portions being provided with an annular planar surface confronting said tape and formed with a multiplicity of humps in a surface array welded to said tape.
Claim 3
Dependent Claim
20 words
A slide fastener stringer half as defined in claim 1 wherein said one of said portions is said connecting portion.
Claim 4
Dependent Claim
24 words
A slide fastener stringer half as defined in claim 1 wherein said one of said portions is said fastening portion of each coupling member.
Claim 5
Dependent Claim
20 words
A slide fastener stringer half as defined in claim 1 wherein all of said portions are formed with said humps.
Claim 6
Dependent Claim
30 words
A slide fastener stringer half as defined in claim 1 wherein said humps are formed along edges of said surface of said one of said portions of each coupling member.
Claim 7
Dependent Claim
22 words
A slide fastener stringer half as defined in claim 1 wherein said coupling members lie along one surface only of said tape.
Claim 8
Dependent Claim
44 words
A slide fastener stringer half as defined in claim 1 wherein said coupling members straddle said tape and each has a pair of Shanks form fitting around an edge of the tape, said shanks forming said fastening portion and being provided with said humps.
Claim 9
Dependent Claim
41 words
A slide fastener stringer half as defined in claim 1 wherein said surface of said one of said portions of each coupling member is provided with a recess corresponding to displacement of thermoplastic material to form said hump around said recess.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |