Blow molded article with reverse lip

Details Blow molded article with reverse lip Blow molded article with reverse lip

1988-10-31

1990-11-27

Silbaugh, Jan H.

Receptacles

Outlet or junction box type

Sectional receptacle

215 1C, 264527, 264531, B65D 146

Patent

active

049729632

ABSTRACT:
An apparatus and method for blow molding a recessed lip in a molded article. The apparatus includes two plates reciprocally movable toward and away from one another. A center ring member is fixedly and perpendicularly mounted on each plate. A mold half is mounted on each plate and is divided into two sections. One section is located on each side of the center ring member and is reciprocally movable toward and away from the center ring member. A first ring member is affixed to each section in proximity to the center ring member and has a channel. A second ring member is reciprocally movable in the channel and engages the center ring member. The recessed lip is molded between the center ring member, the first ring member and the second ring member.

REFERENCES:
patent: 2828789 (1958-04-01), Groendyk et al.
patent: 3934747 (1976-01-01), Needt
patent: 3949046 (1976-04-01), Procter
patent: 4170623 (1979-10-01), Dubois et al.
patent: 4228122 (1980-10-01), Hammes
patent: 4228911 (1980-10-01), Hammes
patent: 4378328 (1983-03-01), Przytulla et al.
patent: 4529570 (1985-07-01), Przytulla

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