Patent ID: 7175414
Filing Date: 2007-02-13
Classification: B28B,B30B,F15B

Abstract:
1. A mold assembly for producing masonry blocks and adapted for use in a masonry block machine, the mold assembly comprising: a mold box; a plurality of liner plates positioned within the mold box and configured to form a mold cavity having a desired form, wherein at least one of the liner plates is moveable between a retracted position and a desired extended position toward an interior of the mold cavity; and a gear drive assembly including: a first element selectively coupled to the at least one moveable liner plate; and an actuator operatively coupled to the first element and configured to push the at least one moveable liner plate in a first direction toward the extended position via the first element by applying a force in a second direction which is different from the first direction and configured to pull the at least one moveable liner plate from the extended position toward the retracted position via the first element by applying a force in a direction which is opposite to the second direction, wherein the gear drive assembly is positioned substantially external to the mold box.