US3611538A
Expired / Lapsed
US
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Apparatus for continuously producing a slide fastener chain
Assignee: YKK Corp
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Filing: 1970-06-25
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Granted: 1971-10-12
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Expires: 1990-06-25
Abstract
Abstract AN APPARATUS FOR PRODUCING SLIDE FASTENER CHAINS COMPRISES A BASE UNIT AND AN OVERHEAD UNIT OVERLYING THE BASE UNIT. THE BASE UNIT IS PROVIDED WITH A LONGITUDINALLY EXTENDING RECESS FOR GUIDING THE FASTENER CHAINS AND A PAIR OF GRIPPERS FOR GRIPING THE CHAINS. THE OVERHEAD UNIT IS PROVIDED WITH A CUTTING DEVICE FOR CUTTING OFF PREDETERMINED FASTENER ELEMENTS AND A SET OF SCRAPERS TO EFFECT REMOVAL OF THE CUT OFF ELEMENTS. THE BASE AND OVERHEAD UNITS COOPERATE TOGETHER TO FORM LONGITUDINALLY SPACED-APART BLANK PORTIONS ON THE FASTENER CHAIN DEVOID OF FASTENER ELEMENTS TO THEREBY FACILITATE THE MOUNTING OF SLIDERS ON THE FASTENER CHAIN.
Inventors
- 👤 Ikuo Takamatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:14
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/42; A44B19/58; B; B21; B21D; B21D53/00; B21D53/46; B21D53/50; B21D53/52; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49782; Y10T29/51; Y10T29/5101; Y10T29/5136; Y10T29/5137; Y10T29/5138; Y10T29/53; Y10T29/53291; Y10T29/53296; Y10T29/533; Y10T29/53309
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |