Stone working – Splitting – shearing – and punching
Reexamination Certificate
2007-08-07
2007-08-07
Wilson, Lee D. (Department: 3723)
Stone working
Splitting, shearing, and punching
C144S193100, C083S468000
Reexamination Certificate
active
11442233
ABSTRACT:
The present invention provides a method of producing split casted concrete blocks. The method comprises the steps of providing a production plate adapted to support one or more casted blocks. One or more of these blocks are casted on the production plate. A parting slot is formed on a top surface of each of the one or more blocks. The production plate is transported to a support surface of a block splitting machine. Each of the blocks is impacted with a pitching blade aligned with the parting slot of a respective one of the one or more casted blocks to form the split blocks on the production plate.
REFERENCES:
patent: 630983 (1899-08-01), Kreuzer
patent: 6401706 (2002-06-01), Hernblom et al.
patent: 6568577 (2003-05-01), Baird et al.
patent: 6668816 (2003-12-01), Pedersen et al.
patent: 2001/0035174 (2001-11-01), O'Neal et al.
patent: 2002/0056738 (2002-05-01), Baird et al.
patent: 2004/0089283 (2004-05-01), Pedersen et al.
Ogilvy Renault LLP
Techo-Bloc Inc.
Wilson Lee D.
LandOfFree
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