Patent US3579747A successfully refreshed from Google Patents.
US3579747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strip fasteners
Assignee: EPS Research and Development Ltd
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Filing: 1969-01-21
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Granted: 1971-05-25
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Expires: 1989-01-21
Abstract
Abstract In a slide fastener wherein a barbed rib of a male strip is arranged to interlock with a barbed jaw of a female strip, the jaw of the female strip is closed by the slider by means of a locking strut which is hinged to the female strip over one of the barbed fingers which defines the jaw, the locking strut being firmly engageable by a recess in the one barbed finger.
Inventors
- 👤 Edwin L Hawley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:40
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/26; A44B19/267; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2532; Y10T24/2534; Y10T24/2561; Y10T24/2582; Y10T24/2588
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
227 words
A strip fastener comprising 1. an elongated male strip, a. a barbed rib extending laterally along the elongation of the male strip, and b. a guide for locating a slider on the male strip adjacent the barbed rib; and 2. an elongated female strip arranged adjacent and parallel to the male strip, c. a pair of spaced-apart barbed fingers extending laterally along the elongation of the female strip, the fingers defining a jaw adjacent and dimensioned to receive the barbed rib of the male strip, d. one of the fingers being hingedly connected to the female strip whereby the one finger may be moved for opening and closing the jaw, the barbed ri being readily movable into and out of the jaw when the same is open and being locked therein when the same is closed, e. a locking strut being hingedly connected to the female strip in superposed relation to the one finger, f. the one finger defining a recess arranged to receive the locking strut, g. the locking strut having a surface remote from the hinge connection thereof which is shaped for snug engagement with a corresponding surface of the recess, the surfaces of the recess and the locking strut being inclined to one another when out of engagement, and h. a guide for locating the slider on the female strip adjacent the barbed fingers.
Claim 2
Dependent Claim
227 words
A strip fastener comprising 1. an elongated male strip, a. a barbed rib extending laterally along the elongation of the male strip, and b. a guide for locating a slider on the male strip adjacent the barbed rib; and 2. an elongated female strip arranged adjacent and parallel to the male strip, c. a pair of spaced-apart barbed fingers extending laterally along the elongation of the female strip, the fingers defining a jaw adjacent and dimensioned to receive the barbed rib of the male strip, d. one of the fingers being hingedly connected to the female strip whereby the one finger may be moved for opening and closing the jaw, the barbed ri being readily movable into and out of the jaw when the same is open and being locked therein when the same is closed, e. a locking strut being hingedly connected to the female strip in superposed relation to the one finger, f. the one finger defining a recess arranged to receive the locking strut, g. the locking strut having a surface remote from the hinge connection thereof which is shaped for snug engagement with a corresponding surface of the recess, the surfaces of the recess and the locking strut being inclined to one another when out of engagement, and h. a guide for locating the slider on the female strip adjacent the barbed fingers.
Claim 3
Dependent Claim
25 words
The strip Fastener of claim 1, further comprising a slider positioned by and movable along the guides for interlocking the strips and separating the same.
Claim 4
Dependent Claim
187 words
an elongated female strip arranged adjacent and parallel to the male strip, c. a pair of spaced-apart barbed fingers extending laterally along the elongation of the female strip, the fingers defining a jaw adjacent and dimensioned to receive the barbed rib of the male strip, d. one of the fingers being hingedly connected to the female strip whereby the one finger may be moved for opening and closing the jaw, the barbed ri being readily movable into and out of the jaw when the same is open and being locked therein when the same is closed, e. a locking strut being hingedly connected to the female strip in superposed relation to the one finger, f. the one finger defining a recess arranged to receive the locking strut, g. the locking strut having a surface remote from the hinge connection thereof which is shaped for snug engagement with a corresponding surface of the recess, the surfaces of the recess and the locking strut being inclined to one another when out of engagement, and h. a guide for locating the slider on the female strip adjacent the barbed fingers.
Claim 5
Dependent Claim
187 words
an elongated female strip arranged adjacent and parallel to the male strip, c. a pair of spaced-apart barbed fingers extending laterally along the elongation of the female strip, the fingers defining a jaw adjacent and dimensioned to receive the barbed rib of the male strip, d. one of the fingers being hingedly connected to the female strip whereby the one finger may be moved for opening and closing the jaw, the barbed ri being readily movable into and out of the jaw when the same is open and being locked therein when the same is closed, e. a locking strut being hingedly connected to the female strip in superposed relation to the one finger, f. the one finger defining a recess arranged to receive the locking strut, g. the locking strut having a surface remote from the hinge connection thereof which is shaped for snug engagement with a corresponding surface of the recess, the surfaces of the recess and the locking strut being inclined to one another when out of engagement, and h. a guide for locating the slider on the female strip adjacent the barbed fingers.
Claim 6
Dependent Claim
40 words
The strip fastener of claim 2, wherein the one finger and the locking strut are integral with the female strip, strip portions of reduced cross section providing hinged connections of the one finger and the locking strut to the strip.
Claim 7
Dependent Claim
31 words
The strip fastener of claim 3, wherein the strips are of deformable material, deformation of the one finger or the locking strut permitting engagement and disengagement of said mutually inclined surfaces.
Claim 8
Dependent Claim
67 words
The strip fastener of claim 2, wherein the slider defines a pair of divergent channels engaging the guides, a lip in the female strip guide engaging channel for effecting movement of the locking strut into and out of the recess of the one finger, and the divergence of the channels respectively drawing together, and moving apart, the strips of reverse movement of the slider along the strips.
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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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |