US3137037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming a helical slide fastener
Assignee: WALTER E HEILMANN
•
Filing: 1961-07-07
•
Granted: 1964-06-16
•
Expires: 1981-07-07
Abstract
No abstract record available.
Inventors
- 👤 Wilcken Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:51
CPC Classifications
B; B29; B29D; B29D5/00; B29D5/06; Y; Y10; Y10S; Y10S425/00; Y10S425/814; Y10T; Y10T24/00; Y10T24/25; Y10T24/2518; Y10T29/00; Y10T29/53; Y10T29/53291; Y10T29/53313; Y10T29/53348; Y10T29/53352
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
APPARATUS FOR USE IN MAKING HELICAL COIL SLIDING CLASP FASTENERS OF HELICAL FILAMENTS OF PLASTIC MATERIAL, THE TURNS OF WHICH FILAMENTS ARE PROVIDED WITH COUPLING ELEMENTS FORMED BY TRANSVERSE DEFORMATIONS OF THE FILAMENT, COMPRISING A SPINDLE HAVING A COIL FORMER AT ONE END, A SUPPLY SPOOL FOR SAID FILAMENT FREELY ROTATABLE ABOUT THE AXIS OF SAID SPINDLE, A SUPPORT ROTATABLE ABOUT SAID SPINDLE, GUIDE MEANS CARRIED BY SAID SUPPORT FOR GUIDING THE FILAMENT DRAWN OFF FROM THE SUPPLY SPOOL TO THE COIL FORMER, WHEREBY THE FILAMENT IS WOULD AROUND THE COIL FORMER AS THE SUPPORT IS ROTATED RELATIVE TO THE SPINDLE, COUPLING ELEMENT LOCATING MEMBERS CARRIED BY SAID SUPPORT, AND DRIVE MEANS FOR DRIVING SAID MEMBERS BY RELATIVE ROTATION BETWEEN SAID SUPPORT AND SAID SPINDLE SO THAT DURING EACH REVOLUTION OF THE SUPPORT ABOUT THE SPINDLE ONE OF THE COUPLING ELEMENTS IS LOCATED IN A PREDETERMINED CIRCUMFERENTIAL POSITION TO INSURE THAT THE COUPLING ELEMENTS OF SUCCESSIVE TURNS WILL ALL BE ALIGNED WITH EACH OTHER AXIALLY OF THE COIL FORMER.
Claim 2
Dependent Claim
169 words
APPARATUS FOR USE IN MAKING HELICAL COIL SLIDING CLASP FASTENERS OF HELICAL FILAMENTS OF PLASTIC MATERIAL, THE TURNS OF WHICH FILAMENTS ARE PROVIDED WITH COUPLING ELEMENTS FORMED BY TRANSVERSE DEFORMATIONS OF THE FILAMENT, COMPRISING A SPINDLE HAVING A COIL FORMER AT ONE END, A SUPPLY SPOOL FOR SAID FILAMENT FREELY ROTATABLE ABOUT THE AXIS OF SAID SPINDLE, A SUPPORT ROTATABLE ABOUT SAID SPINDLE, GUIDE MEANS CARRIED BY SAID SUPPORT FOR GUIDING THE FILAMENT DRAWN OFF FROM THE SUPPLY SPOOL TO THE COIL FORMER, WHEREBY THE FILAMENT IS WOULD AROUND THE COIL FORMER AS THE SUPPORT IS ROTATED RELATIVE TO THE SPINDLE, COUPLING ELEMENT LOCATING MEMBERS CARRIED BY SAID SUPPORT, AND DRIVE MEANS FOR DRIVING SAID MEMBERS BY RELATIVE ROTATION BETWEEN SAID SUPPORT AND SAID SPINDLE SO THAT DURING EACH REVOLUTION OF THE SUPPORT ABOUT THE SPINDLE ONE OF THE COUPLING ELEMENTS IS LOCATED IN A PREDETERMINED CIRCUMFERENTIAL POSITION TO INSURE THAT THE COUPLING ELEMENTS OF SUCCESSIVE TURNS WILL ALL BE ALIGNED WITH EACH OTHER AXIALLY OF THE COIL FORMER.
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |