Method and apparatus for slitting and providing selvedge by ultr

Details Method and apparatus for slitting and providing selvedge by ultr Method and apparatus for slitting and providing selvedge by ultr

1985-04-15

1987-05-05

Sakran, Victor N.

Buckles, buttons, clasps, etc.

Including readily dissociable fastener having numerous,...

With feature facilitating or causing attachment of filaments...

24442, 24443, 24DIG11, 156 733, A44B 2100, B32B 3118

Patent

active

046620370

ABSTRACT:
An apparatus for ultrasonically providing selvedge on separable fasteners of the hook and loop-type. Portions of the separable fastener member are ultrasonically softened or melted and pressed toward the surface of the base member so as to be combined, or in some instances, consolidated therewith. The portions may be given a textured appearance by use of a textured anvil having either a simulated selvedge surface or even a trademark or logo impressed, machined or etched thereon. The tape may be provided with several selvedge portions and then slit medially of the portions to provide at least two separable fasteners of smaller width from a separable fastener of wider width.

REFERENCES:
patent: 3114951 (1963-12-01), Mestral
patent: 3464094 (1969-09-01), Mates
patent: 3527629 (1970-09-01), Wylde
patent: 3550223 (1970-12-01), Erb
patent: 3640786 (1972-02-01), Carpenter
patent: 3650647 (1972-03-01), Jacobs et al.
patent: 3925858 (1975-12-01), Thaeler
patent: 3981051 (1976-09-01), Brumlik
patent: 4377427 (1983-03-01), Francois

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