Fastener device and method of manufacturing

Details Fastener device and method of manufacturing Fastener device and method of manufacturing

1977-11-10

1980-02-26

Lowe, James B.

Buckles, buttons, clasps, etc.

Buckles

One-piece

24201C, 264145, 264154, 264177R, A44B 1700, B29F 300, B29C 1702, B29C 1714

Patent

active

041898095

ABSTRACT:
The invention relates to a method of manufacturing a fastener device by extrusion of a thermoplastic material through a shaped drawplate. The extruded strip includes a plurality of rows of longitudinal ribs connected at their bases by legs integral therewith at one end and connected at their edges to two contiguous longitudinally extending flat zones. The ribs are cut throughout their height and then the strip is stretched providing spaced apart ribs and openings in the base of the strip. The tops of the ribs are enlarged and are of greater width than the width of the openings thus providing a plurality of male and female connecting elements on the same strip.

REFERENCES:
patent: 3514815 (1970-06-01), Evant
patent: 3557413 (1971-01-01), Engle
patent: 4056593 (1977-11-01), Albareda
patent: 4062919 (1977-12-01), Rojahn

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