Plastic article or earthenware shaping or treating: apparatus – Female mold – pallet handling means and means to charge... – Pallet supported within mold sidewalls by vertically movable...
Reexamination Certificate
2007-02-20
2007-02-20
Mackey, James P. (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Female mold, pallet handling means and means to charge...
Pallet supported within mold sidewalls by vertically movable...
C425S260000, C425S421000, C425S422000, C425S432000
Reexamination Certificate
active
10906394
ABSTRACT:
A concrete block-molding machine having a concrete mix feed station, and a concrete molding and block ejection station adjacent to the feed station wherein the concrete molding and block ejection station has a vibratile plate having a plurality of holes in a pre-selected hole pattern, a mold having a mold interior positionable on the vibratile plate and having holes in the pre-selected hole pattern, and a support plate dimensioned and patterned to form a bottom face of a molded concrete block. An ejector plate having a plurality of projecting rods in the pre-selected hole pattern is positionable below the vibrating plate, with the rods of a diameter such that they pass through the holes in the vibratile plate and the mold. Means are provided for raising and lowering a pressure plate assembly so as to compress a concrete mix in the mold provided. Means are also provided for raising and lowering the ejector plate so as to contact and raise and lower the support plate out of and into the mold.
REFERENCES:
patent: 2308132 (1943-01-01), Wellnitz
patent: 2341012 (1944-02-01), Billman et al.
patent: 2494212 (1950-01-01), Spriggs et al.
patent: 2512092 (1950-06-01), Dike et al.
patent: 2593409 (1952-04-01), Brown, Jr.
patent: 2670516 (1954-03-01), McEachran
patent: 2888731 (1959-06-01), McElroy et al.
patent: 3781156 (1973-12-01), Moore
patent: 4063866 (1977-12-01), Lurbiecki
patent: 4098562 (1978-07-01), Levin
patent: 4111627 (1978-09-01), Kitahara
patent: 4193754 (1980-03-01), Sekiguchi
patent: 4836762 (1989-06-01), Davis, Jr.
patent: 4869660 (1989-09-01), Ruckstuhl
patent: 4944907 (1990-07-01), Davis, Jr.
patent: 6499985 (2002-12-01), Sekiguchi et al.
Bond Amanda
Chennells Donald P.
Mackey James P.
Vermette & Co.
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