Closure for thermoplastic containers

Details Closure for thermoplastic containers Closure for thermoplastic containers

1982-12-27

1988-04-12

Lyddane, William E.

Buckles, buttons, clasps, etc.

Separable-fastener or required component thereof

Each mating member having similarly shaped, sized, and...

383 63, 383 65, B65D 3324

Patent

active

047364963

ABSTRACT:
A method for providing a wide-track integral thermoplastic closure for film or sheet stock. The closure includes ribs on either side of an element of the closure to provide the wide-track effect to assist one in ease of interlocking the closure elements. By varying the thickness of the closure element adjacent the ribs, the spacing of the ribs to provide the desired wide-track feel can be obtained.

REFERENCES:
patent: Re28969 (1976-09-01), Naito
patent: 1959318 (1934-05-01), Sundback
patent: 2571144 (1951-10-01), Lobl
patent: 3338284 (1967-08-01), Ausnit
patent: 3395788 (1968-08-01), Gill
patent: 3532571 (1970-10-01), Ausnit
patent: 4285376 (1981-08-01), Ausnit
patent: 4363345 (1982-12-01), Scheibner
Presto Products, Private Label Storage Bags, Jan. 1981.

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