Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Surface deformation means only
Patent
1994-05-16
1996-01-30
Davis, Robert B.
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
Surface deformation means only
404 89, 425458, B29C 5902, E01C 2302
Patent
active
054876567
ABSTRACT:
An improved forming tool for imprinting a textured pattern in concrete, the tool having the property of appearing identical to a fixed observer after rotation about a center point in four orientations. The tool can be fitted with adjacent tools in any one of the four orientations. The tool includes a backing plate having handles for imprinting a pattern and lifting the tool from the concrete. The underside of the tool includes a plurality of rectilinear grout lines separating areas of texture, the grout lines forming grooves in the concrete to define simulated stones having a roughened surface left by the textured areas.
REFERENCES:
patent: D282623 (1986-02-01), Nasvik
patent: 4131406 (1978-12-01), Fresquez
patent: 4135840 (1979-01-01), Puccini et al.
patent: 4231677 (1980-11-01), Roming
patent: 4776723 (1988-10-01), Brimo
patent: 5061172 (1991-10-01), Fennessy, Sr.
Averill, Jr. Edgar W.
Davis Robert B.
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