Safety mold lift lock

Details Safety mold lift lock Safety mold lift lock

1986-11-08

1987-11-17

Hoag, Willard E.

Static molds

Container-type molding device

Having plural mold sections

72470, 164341, 425151, 425192R, 425595, 425451, 4254519, B29C 3320, B29C 4564, B29C 5138

Patent

active

047069260

ABSTRACT:
A mold comprising mold halves separable along a parting line has a rotating lifting handle carried by one of the mold halves, where the handle rotates between a first position in which it lies generally flat against the mold and a second position in which it extends outwardly from the mold to permit engagement by a lifting hook or the like. By this invention, rotation of the lifting handle from the first to the second position is prevented when the mold halves are separated along the parting line by more than a predetermined distance. Thus the mold cannot be lifted, since the handle cannot be rotated into outwardly extending position to receive the hook until the mold is closed. Additionally, this invention may be used to prevent opening of the parting line between the mold halves when in closed relation, while the handle is in the second position. Thus, the only time that the handle can be used to lift the mold is when it is closed and locked, to prevent accidental separation of the mold halves during lifting.

REFERENCES:
patent: 3909180 (1975-09-01), Von Holdt
patent: 4004448 (1977-01-01), Von Holdt
patent: 4487564 (1984-12-01), Von Holdt

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