US3600766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stringers for fasteners
Assignee: Individual
•
Filing: 1969-07-28
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Granted: 1971-08-24
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Expires: 1989-07-28
Abstract
Abstract A plastic fastener comprises two stringers. Each stringer includes a plurality of longitudinally spaced plastic engaging elements. The engaging elements of each stringer are interconnected via a plastic strip in which are embedded threads whereby each stringer is a unitary structure of molded plastic material. Each engaging element of each stringer extends transverse to the axis of the stringer and is provided with teeth or hooks at its both ends for meshing with engaging elements of the other stringer.
Inventors
- 👤 Herbert Alberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:08
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/40; A44B19/02; A44B19/08; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2536; Y10T24/2539; Y10T24/2557; Y10T24/2561
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
210 words
A fastener for connecting two pieces of material comprising a pair of stringers, each of said stringers comprising a plurality of engaging elements longitudinally spaced from each other along the axis of the stringer, each of said engaging elements extending in a direction transverse to the axis of said stringer, each of said engaging elements having a bottom surface with a portion of which is substantially flat to rest adjacent a surface of its associated piece of material, a pair of upright portions extending upward from said bottom surface, a bridge portion, each of said upright portions being at a different end or said bridge portion and spaced from each other so that a channel is provided between said upright portions, means for connecting the bridge portions of said engaging elements to the associated pieces of material so that the stringers are fixed to their associated pieces of material, at lease one projection on the end of each of said upright portions for meshing with similar projections on the upright portions of the engaging elements of the other stringer and interconnecting means for interconnecting the engaging elements along the bottom surfaces thereof, said engaging elements and said interconnecting means being made from the same material to form a unitary structure.
Claim 2
Dependent Claim
210 words
A fastener for connecting two pieces of material comprising a pair of stringers, each of said stringers comprising a plurality of engaging elements longitudinally spaced from each other along the axis of the stringer, each of said engaging elements extending in a direction transverse to the axis of said stringer, each of said engaging elements having a bottom surface with a portion of which is substantially flat to rest adjacent a surface of its associated piece of material, a pair of upright portions extending upward from said bottom surface, a bridge portion, each of said upright portions being at a different end or said bridge portion and spaced from each other so that a channel is provided between said upright portions, means for connecting the bridge portions of said engaging elements to the associated pieces of material so that the stringers are fixed to their associated pieces of material, at lease one projection on the end of each of said upright portions for meshing with similar projections on the upright portions of the engaging elements of the other stringer and interconnecting means for interconnecting the engaging elements along the bottom surfaces thereof, said engaging elements and said interconnecting means being made from the same material to form a unitary structure.
Claim 3
Dependent Claim
31 words
The fastener of claim 1 wherein said material is a plastic and within said interconnecting means there are embedded threads that extend at least longitudinally along the length of said stringer.
Claim 4
Dependent Claim
18 words
The fastener of claim 2 wherein said threads are arrayed in the form of an open woven tape.
Claim 5
Dependent Claim
14 words
The fastener of claim 2 wherein the plastic of the interconnecting means is fractured.
Claim 6
Dependent Claim
55 words
The fastener of claim 1 wherein said projections are hook elements extending in the longitudinal direction of the stringer, the lateral spacing between the hook elements being such that said hook elements of the engaging elements of one stringer can straddle and abut portions of the sides of the engaging means of the other stringer.
Claim 7
Dependent Claim
42 words
The fastener of claim 5 wherein each hook element has a top surface which is inclined with respect to the plane of the stringer and a flat undersurface which is substantially parallel to said plane, said surfaces intersecting at an acute angle.
Claim 8
Dependent Claim
36 words
The fastener of claim 1 wherein the spacing between the projections of adjacent engaging elements at at least one end of said stringers is less than the spacing between the other engaging elements of the stringers.
Claim 9
Dependent Claim
27 words
The fastener of claim 1 wherein there is at least one indentation in the side of said upright portions for accepting the locking pin of a slider.
Claim 10
Dependent Claim
28 words
The fastener of claim 1 wherein the portion of said engaging element between said upright portions is provided with a through passageway for receiving a sewing machine needle.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |