Blind rivet and method and apparatus for making same

Details Blind rivet and method and apparatus for making same Blind rivet and method and apparatus for making same

1990-08-13

1992-01-14

Sewell, Paul T.

Special receptacle or package

For a fastener

Flaccidly or integrally connected

206820, F16B 1304

Patent

active

050802291

ABSTRACT:
Apparatus and method for molding a strip of blind rivets, with each of the rivets having a pin within a sleeve and with the pin having a pulling head and shank, including a strip advance rod mounted in the apparatus for movement between first and second positions, a set of pin mold cavities and a set of sleeve mold cavities, a first runner for feeding the pin mold cavities and including a band around the rod, a second runner overlying the first runner for feeding the sleeve mold cavities, opposing mold members defining the sets of cavities and a sprue for feeding molding material to the runners, with the rod and strip moving together when the mold members are out of engagement for advancing the molded parts, and with the rod moving through the strip when the mold members are in engagement for returning the rod to the first position.

REFERENCES:
patent: 3938657 (1976-02-01), David
patent: 3974913 (1976-08-01), Hirsch
patent: 4222304 (1980-09-01), Yoshida et al.
patent: 4402638 (1983-09-01), Tanaka

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