US3602958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock slider
Assignee: William Prym Werke GmbH and Co KG
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Filing: 1969-12-01
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Granted: 1971-09-07
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Expires: 1989-12-01
Abstract
Abstract An automatic lock slider of plastic material provided with a bow-shaped combined holding and locking means comprising an elongated lug integrally connected at least at one end thereof to the upper plate of the slider body for holding a pull tab, and resiliently bendable elongated detent means integrally connected at one thereof to the lug in the region of the other end of the latter and carrying on it its free end a locking tooth for locking engagement with the interlocking elements of a slide fastener.
Inventors
- 👤 Friedrich Glindmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:24
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/26; A44B19/30; A44B19/306; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2561; Y10T24/2566; Y10T24/257; Y10T24/2571
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
349 words
An automatic lock slider for slide fasteners, said lock slider being formed from plastic material and comprising a slider body including an upper and a lower slider plate, an opening wedge integrally connecting said plates at one of the ends thereof in spaced substantially parallel relationship, and a pair of flanges extending from at least one of said plates toward but short of the other plate to define with said plates a channel for the passage of interlocking elements of a slide fastener therethrough; elongated bow-shaped holding and locking means extending in longitudinal direction of said slider body and being formed with at least one slot extending from the other end of said slider body towards but ending short of said one end and dividing said holding and locking means into an elongated lug and resilient detent means extending substantially parallel to said lug and integrally connected thereto at the end of said slot, said lug being integrally connected only at one end thereof to said upper slider plate in the region of the other end of the latter and having an opposite free end and a concave face facing said upper slider plate, said detent means having at the free end thereof a locking tooth and being biased to stay in unstressed condition in a locking position in which said locking tooth extends beyond the bottom face of said upper slider plate for interlocking engagement with an interlocking element of a slide fastener, said detent means being resiliently movable from said locking to a raised inactive position and having a cam face deviating with a portion thereof at least in said locking position from said concave face of said lug towards the upper face of said upper slider plate; and a pull tab held between said upper face of said upper slider plate and said concave face of said lug and cooperating with said portion of said cam face to raise said detent means to said active position when a pull is exerted on said tab to move said slider in fastener opening direction along a slide fastener.
Claim 2
Dependent Claim
349 words
An automatic lock slider for slide fasteners, said lock slider being formed from plastic material and comprising a slider body including an upper and a lower slider plate, an opening wedge integrally connecting said plates at one of the ends thereof in spaced substantially parallel relationship, and a pair of flanges extending from at least one of said plates toward but short of the other plate to define with said plates a channel for the passage of interlocking elements of a slide fastener therethrough; elongated bow-shaped holding and locking means extending in longitudinal direction of said slider body and being formed with at least one slot extending from the other end of said slider body towards but ending short of said one end and dividing said holding and locking means into an elongated lug and resilient detent means extending substantially parallel to said lug and integrally connected thereto at the end of said slot, said lug being integrally connected only at one end thereof to said upper slider plate in the region of the other end of the latter and having an opposite free end and a concave face facing said upper slider plate, said detent means having at the free end thereof a locking tooth and being biased to stay in unstressed condition in a locking position in which said locking tooth extends beyond the bottom face of said upper slider plate for interlocking engagement with an interlocking element of a slide fastener, said detent means being resiliently movable from said locking to a raised inactive position and having a cam face deviating with a portion thereof at least in said locking position from said concave face of said lug towards the upper face of said upper slider plate; and a pull tab held between said upper face of said upper slider plate and said concave face of said lug and cooperating with said portion of said cam face to raise said detent means to said active position when a pull is exerted on said tab to move said slider in fastener opening direction along a slide fastener.
Claim 3
Dependent Claim
32 words
An automatic lock slider as definEd in claim 1, wherein said holding and locking means is formed with two of said slots and wherein said detent means is located between said slots.
Claim 4
Dependent Claim
26 words
An automatic lock slider as defined in claim 2, wherein said slots are arranged symmetrically with respect to a longitudinal plane of symmetry of said slider.
Claim 5
Dependent Claim
42 words
An automatic lock slider as defined in claim 1, wherein said upper slider plate is formed in the region of said other end thereof with a cutout through which is said locking tooth extends in said active position of said detent means.
Claim 6
Dependent Claim
108 words
An automatic lock slider as defined in claim 1, wherein said pull tab has a transverse portion located between said concave face of said lug and the upper face of said upper slider plate and being adapted to engage said cam face, said transverse portion being integrally connected at opposite ends to the remainder of said pull tab, and wherein said lug is resiliently bendable and is biased to maintain in unstressed condition said free end of said lug spaced a distance from said upper face of said upper slider plate which is slightly smaller than the smallest cross-sectional dimension of said transverse portion of said pull tab.
Claim 7
Dependent Claim
25 words
An automatic lock slider as defined in claim 5, wherein said transverse portion of said pull tab has a cross section of substantially circular outline.
Claim 8
Dependent Claim
99 words
An automatic lock slider as defined in claim 6, wherein said lug has at said free end thereof a curved outer lead-in face extending with a face portion thereof substantially parallel to said upper face of said upper slider plate towards said concave face of said lug to facilitate introducing of said transverse portion of said pull tab beneath said concave face of said lug, whereas said concave face extends with a portion thereof in the region of said free end of said lug substantially normal to said upper face thereby form a stop face for said transverse portion.
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) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |