Truss panel mold

Details Truss panel mold Truss panel mold

1977-01-13

1979-12-25

McQuade, John

Static molds

Forming grid or lattice type product

249 80, 249102, 249109, 249135, B28B 734

Patent

active

041802322

ABSTRACT:
An apparatus is disclosed for forming an integrated truss structure wherein the apparatus includes a plurality of male mold members each having a plurality of open grooves formed therein which slope away from the top surface thereof. A plurality of female mold members each have a generally circular recessed cavity with a plurality of open grooves which are orthogonally disposed with regard to one another and which slope away from the plane of the recessed cavity. The male and female members are positioned opposite one another with the grooves in the male and female members being aligned to define strut beam chambers and wherein the top of the male member is aligned with the recessed cavity of the female member to define a junction chamber. Thus, the strut beam chambers slope away from the junction chamber. One of the male members is positioned adjacent each female member, and vice versa, to thereby define alternate symmetrical upper and lower junction chambers interconnected by the strut chambers. Channels are formed, preferably in the female members, for injecting a moldable material such as plastic into the strut beam chambers and the junction chambers. After injection occurs, the molds are separated to thereby form an integrally molded truss structure.

REFERENCES:
patent: 1409591 (1922-03-01), Schavoir
patent: 2566817 (1951-09-01), Yellin
patent: 3333300 (1967-08-01), Cohan
patent: 3790371 (1974-02-01), Karlyn
patent: 3871611 (1975-03-01), Taketa

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