Patent US3818575A successfully refreshed from Google Patents.
US3818575A
Expired / Lapsed
US
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Method of forming end stops on slide fasteners
Assignee: Talon Inc
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Filing: 1973-05-14
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Granted: 1974-06-25
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Expires: 1993-05-14
Abstract
Abstract A method of forming an end stop for a slide fastener including folding the slide fastener to have a T-configuration exposing the undersides of the folded portions, disposing fusible material in cavities below the exposed undersides and fusing the material to the undersides of the folded portions to form a separate stop member on either side of the slide fastener.
Inventors
- 👤 J Johnston
- 👤 G Moertel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:11
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/42; A44B19/60; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49782
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
83 words
A method of forming end stop means on a slide fastener of the type having a pair of tapes with their edges folded upon themselves to provide a seam-like appearance when interlocking elements attached to The folded portions are interengaged, the method comprising supporting the slide fastener such that the undersides of the folded portions are exposed; disposing fusible material adjacent the exposed underside of each folded portion; and fusing the material onto the folded portions to form a pair of stop members.
Claim 2
Independent Claim
83 words
A method of forming end stop means on a slide fastener of the type having a pair of tapes with their edges folded upon themselves to provide a seam-like appearance when interlocking elements attached to The folded portions are interengaged, the method comprising supporting the slide fastener such that the undersides of the folded portions are exposed; disposing fusible material adjacent the exposed underside of each folded portion; and fusing the material onto the folded portions to form a pair of stop members.
Claim 3
Dependent Claim
41 words
The method as recited in claim 1 wherein said supporting step includes folding the slide fastener to have a T-configuration with the tapes forming a vertical bar of the T-configuration and the folded portions forming a horizontal bar of the T-configuration.
Claim 4
Dependent Claim
40 words
The method as recited in claim 1 wherein said supporting step includes placing the exposed underside of each folded portion adjacent a cavity, and said disposing step includes providing a blank of the fusible material in each of the cavities.
Claim 5
Dependent Claim
27 words
The method as recited in claim 3 wherein said providing step includes shearing a predetermined amount from strip stock of the fusible material to form each blank.
Claim 6
Dependent Claim
58 words
The method as recited in claim 4 wherein said supporting step includes supporting the slide fastener in a forming block defining the cavities along with the ends of a forming anvil, and said shearing step includes positioning the strip stock in the cavities and moving the forming block relative to the forming anvil to shear the strip stock.
Claim 7
Dependent Claim
23 words
The method as recited in claim 5 wherein said moving step includes moving a fusing member to engage and move the forming block.
Claim 8
Dependent Claim
19 words
The method as recited in claim 6 wherein said fusing step includes providing ultrasonic energy to the fusing member.
Claim 9
Dependent Claim
27 words
The method as recited in claim 6 wherein said supporting step includes positioning the outer surface of each folded portion to be engaged by the fusing member.
Claim 10
Independent Claim
68 words
A method of forming a stop member on the underside of a folded portion of a tape of a slide fastener presenting a seam-like appearance, the method comprising supporting the slide fastener to expose the underside of the folded portion; disposing a blank of fusible material in a cavity adjacent the exposed underside of the folded portion; and fusing the material onto the underside of the folded portion.
Claim 11
Independent Claim
68 words
A method of forming a stop member on the underside of a folded portion of a tape of a slide fastener presenting a seam-like appearance, the method comprising supporting the slide fastener to expose the underside of the folded portion; disposing a blank of fusible material in a cavity adjacent the exposed underside of the folded portion; and fusing the material onto the underside of the folded portion.
Claim 12
Dependent Claim
23 words
The method as recited in claim 9 wherein said disposing step includes shearing a predetermined amount from a strip of the fusible material.
Claim 13
Dependent Claim
62 words
The method as recited in claim 10 wherein said supporting step includes supporting the slide fastener on a forming block adjacent the cavity defined by the forming block and a forming anvil, positioning the strip of fusible material in the cavity and said shearing step includes moving the forming block relative to the forming anvil to shear the blank from the strip.
References Cited (Backward Citations)
US2884691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-24 | 1977-12-24 | 1978-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-24 | 1981-12-24 | 1982-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-24 | 1985-12-24 | 1986-06-25 | $7700.00 | Window Closed / Lapsed |