Static molds – Container-type molding device – Having plural mold sections
Patent
1974-08-22
1976-10-19
Husar, Francis S.
Static molds
Container-type molding device
Having plural mold sections
249180, 425249, 425438, 425443, B28B 730, B28B 710, B41B 700
Patent
active
039866980
ABSTRACT:
A flexible printing plate is separated from the inner surface of a curved matrix after formation of the plate in a mold by first moving the ends of the plate inwardly away from the matrix, while maintaining the center of the plate in stationary contact with the matrix, and then moving the center of the plate inwardly away from the matrix, while maintaining the ends of the plate away from the matrix. The matrix is held in an outer mold half, and the printing plate is formed in a mating inner mold half having a center section wih sloping side surfaces that converge toward the outer mold half, a first end section having a side surface contiguous to one sloping side surface of the center section, and a second end section having a side surface contiguous to the other sloping side surface of the center section.
REFERENCES:
patent: 2948031 (1960-08-01), Webb
patent: 3129496 (1964-04-01), Cox
patent: 3373460 (1968-03-01), Ladney
patent: 3587144 (1971-06-01), Mechling
patent: 3865529 (1975-02-01), Guzzo
Brown John S.
Husar Francis S.
Times Mirror Company
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