Plastic and nonmetallic article shaping or treating: processes – With step of making mold or mold shaping – per se
Patent
1995-01-23
1997-03-11
Heitbrink, Jill L.
Plastic and nonmetallic article shaping or treating: processes
With step of making mold or mold shaping, per se
2643281, 249102, 425192R, 425195, 425468, B29C 3330
Patent
active
056098103
ABSTRACT:
A method and an apparatus for forming a plurality of types of cases which differ in the position of the identification holes, or the like, is provided. The invention can curb equipment costs and help reduce production costs as a result of minimizing the types of molds to be prepared by making shared used of the molds, and can greatly reduce the work required to change the type of case to be molded. The insertion/removal, fixing, or positioning adjustment of the bush pin which forms the identification hole by projecting into the interior of the cavity of the mold forming the case is conducted by a fixing member which passes through the bush pin and screws into the mold, and which can be manipulated from the parting face side of the mold when the cavity is opened.
REFERENCES:
patent: 2881478 (1959-04-01), Gruenberg
patent: 3251460 (1966-05-01), Edmonds
patent: 3431601 (1969-03-01), Lipscomb
patent: 4073463 (1978-02-01), Bell
patent: 4384702 (1983-05-01), Boskovic
patent: 4741683 (1988-05-01), Hilke et al.
patent: 5167898 (1992-12-01), Luther
Fujiwara Morio
Ohgiyama Takashi
Fuji Photo Film Co. , Ltd.
Heitbrink Jill L.
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