Airtight slide fastener

Details Airtight slide fastener Airtight slide fastener

1975-04-29

1976-11-09

Gilliam, Paul R.

Buckles, buttons, clasps, etc.

Buckles

One-piece

2420511R, A44B 1932, A44B 1936

Patent

active

039901300

ABSTRACT:
Two paralleled fastener tapes are provided on their front and back surfaces with engagement pieces to close and open the tapes, as well as a locking device to fix the slider having inversed V shaped arms at one end. On both sides of the slider are provided hooks to close the arms by engaging the tips of the arms of the locking device, so that a complete airtightness is maintained in the airtight slide fastener when the fastener is closed against any of the pressures applied from the directions of the back or the front of the tapes.

REFERENCES:
patent: 2193827 (1940-03-01), Marinsky
patent: 2296468 (1942-09-01), Feist
patent: 2335147 (1943-11-01), Heimann
patent: 2753609 (1956-07-01), Gossner
patent: 2841851 (1958-07-01), Vanamburg
patent: 2932872 (1960-04-01), Geissmann

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