Patent US3872552A successfully refreshed from Google Patents.
US3872552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide fasteners and method of making the same
Assignee: Talon Inc
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Filing: 1972-09-28
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Granted: 1975-03-25
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Expires: 1992-09-28
Abstract
Abstract A slide fastener including fastener elements formed from continuous filaments of plastic material and carried by cords along inner edges of a pair of tapes, a slider having channels extending therethrough with diverging throats adjacent a diamond post in the slider, and a pair of stop members secured to the pair of tapes at the inner edges, each of the stop members engaging end abutments of the slider to limit movement of the slider and having legs extending obliquely to the inner edges of the tapes such that the legs are received in the throats of the slider when the slider is moved to close the slide fastener to prevent splay of the tapes. The cords have portions of reduced cross section between the stop members and terminal elements of the fastener elements and the slider can be assembled to receive the fastener elements after forming of the stop members by disposing the slider to receive the cord portions of reduced cross section and moving the slider along the cords away from the stop members.
Inventors
- 👤 David V Hofius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:41
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/36; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2598; Y10T29/00; Y10T29/53; Y10T29/53291; Y10T29/53296
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
302 words
A slide fastener comprising first and second tapes each having a cord at an inner edge; first and second fastener element means carried by said cords along the inner edges of said first and second tapes, respectively; slider means having a nose end and a tail end and receiving said first and second fastener element means to control interengagement thereof, said slider means having between its ends a pair of channels, said pair of channels at the nose end of said slider means having diverging throats therein; and first and second stop members secured to said first and second tapes, respectively, at said inner edges to engage said slider means to limit movement thereof, said stop members projecting above the surface of said tapes and having bodies with legs extending obliquely toward said inner edges of said first and second tapes, each one of said legs being received in its respective one of said throats of said slider means such that said slider means with the legs of said stop members in the diverging throats thereof prevents splaying of said tapes when said slider means engages said stop members during interengagement of said first and second fastener element means by movement of said slider means to close said slide fastener, and shoulders extending from said legs and having a thickness less than the thickness of said bodies whereby said shoulders facilitate installation of said slider means and guide said slider means to said bodies of said first and second stop members when said slider means is moved to close said slide fastener, each shoulder having an edge that is aligned with the adjacent edge of its associated leg so as to form a common edge between said shoulder and its associated leg and said common edge extending obliquely toward said inner edges.
Claim 2
Dependent Claim
302 words
A slide fastener comprising first and second tapes each having a cord at an inner edge; first and second fastener element means carried by said cords along the inner edges of said first and second tapes, respectively; slider means having a nose end and a tail end and receiving said first and second fastener element means to control interengagement thereof, said slider means having between its ends a pair of channels, said pair of channels at the nose end of said slider means having diverging throats therein; and first and second stop members secured to said first and second tapes, respectively, at said inner edges to engage said slider means to limit movement thereof, said stop members projecting above the surface of said tapes and having bodies with legs extending obliquely toward said inner edges of said first and second tapes, each one of said legs being received in its respective one of said throats of said slider means such that said slider means with the legs of said stop members in the diverging throats thereof prevents splaying of said tapes when said slider means engages said stop members during interengagement of said first and second fastener element means by movement of said slider means to close said slide fastener, and shoulders extending from said legs and having a thickness less than the thickness of said bodies whereby said shoulders facilitate installation of said slider means and guide said slider means to said bodies of said first and second stop members when said slider means is moved to close said slide fastener, each shoulder having an edge that is aligned with the adjacent edge of its associated leg so as to form a common edge between said shoulder and its associated leg and said common edge extending obliquely toward said inner edges.
Claim 3
Dependent Claim
35 words
The slide fastener as recited in claim 1 wherein said first and second fastener element means have terminal fastener elements spaced from said first and second stop members to define gapped areas of said cords.
Claim 4
Dependent Claim
20 words
The slide fastener as recited in claim 2 wherein said gapped areas of said cords are reduced in cross section.
Claim 5
Dependent Claim
54 words
The slide fastener as recited in claim 1 wherein said bodies of said first and second stop members have lug portions extending from each one of said legs and tranversely to said inner edges of said first and second tapes, said lug portions engaging said slider means to limit movement of said slider means.
Claim 6
Dependent Claim
41 words
The slide fastener as recited in claim 1 wherein said shoulders of said first and second stop members extend to a point to enter said throats of said slider means when said slider means engages said first and second stop members.
Claim 7
Dependent Claim
32 words
The slide fastener as recited in claim 1 wherein each of said first and second stop members is formed of a mass of fusible material fused to said first and second tapes.
Claim 8
Dependent Claim
54 words
The slide fastener as recited in claim 1 wherein said slider means has an upper wing and includes a pull extending from said upper wing on one side of said first and second tapes, and wherein said first and second stop members are secured to the opposite side of said first and second tapes.
Claim 9
Dependent Claim
29 words
The slide fastener as recited in claim 1 wherein each of one of said first and second fastener element means is formed of a continuous filament of plastic material.
Claim 10
Dependent Claim
25 words
The slide fastener as recited in claim 1 wherein portions of said cords adjacent said first and second stop members are reduced in cross section.
Claim 11
Dependent Claim
143 words
A slide fastener comprising a pair of tapes having cords along inner edges thereof; fastener element means carried by said cords and including terminal elements; slider means receiving said fastener element means to control interengagement thereof; and a pair of stop members secured to said tapes at positions spaced from the terminal elements of said fastener elements means, said cords having gapped areas in the space between said pair of stop members and the terminal elements of said fastener element means, and said slider means being installed onto said cords and said fastener element means by the introduction of said slider means along said gapped areas between said pair of stop members and the terminal elements of said fastener element means when said pair of tapes is splayed between the terminal elements of said fastener element means and the top of said tapes.
Claim 12
Dependent Claim
143 words
A slide fastener comprising a pair of tapes having cords along inner edges thereof; fastener element means carried by said cords and including terminal elements; slider means receiving said fastener element means to control interengagement thereof; and a pair of stop members secured to said tapes at positions spaced from the terminal elements of said fastener elements means, said cords having gapped areas in the space between said pair of stop members and the terminal elements of said fastener element means, and said slider means being installed onto said cords and said fastener element means by the introduction of said slider means along said gapped areas between said pair of stop members and the terminal elements of said fastener element means when said pair of tapes is splayed between the terminal elements of said fastener element means and the top of said tapes.
Claim 13
Dependent Claim
20 words
The slide fastener as recited in claim 10 wherein said gapped areas of said cords are reduced in cross section.
Claim 14
Dependent Claim
160 words
A slide fastner comprising a pair of tapes having cords along inner edges thereof, said cords having cord portions of reduced cross section at the top of said tapes; fastener element means carried by said cords and including terminal elements at the top of said tapes; the cord portions of reduced cross section being gapped; slider means receiving said fastener element means to control interengagement thereof; and a pair of stop members secured to said tapes at said cord portions of reduced cross section such that the cord portions of reduced crosS section are between said pair of stop members and the terminal elements of said fastener element means and said slider means being installed onto said cords and said fastener element means by the introduction of said slider means along said cord portions of reduced cross section when said pair of tapes is splayed between the terminal elements of said fastener element means and the top of said tapes.
Claim 15
Dependent Claim
160 words
A slide fastner comprising a pair of tapes having cords along inner edges thereof, said cords having cord portions of reduced cross section at the top of said tapes; fastener element means carried by said cords and including terminal elements at the top of said tapes; the cord portions of reduced cross section being gapped; slider means receiving said fastener element means to control interengagement thereof; and a pair of stop members secured to said tapes at said cord portions of reduced cross section such that the cord portions of reduced crosS section are between said pair of stop members and the terminal elements of said fastener element means and said slider means being installed onto said cords and said fastener element means by the introduction of said slider means along said cord portions of reduced cross section when said pair of tapes is splayed between the terminal elements of said fastener element means and the top of said tapes.
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) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |