Plastic article or earthenware shaping or treating: apparatus – Means withdrawing trowel type shaping member from within...
Reexamination Certificate
2004-05-21
2009-02-10
Davis, Robert B (Department: 1791)
Plastic article or earthenware shaping or treating: apparatus
Means withdrawing trowel type shaping member from within...
C425S125000, C425S117000, C425S427000, C425S447000
Reexamination Certificate
active
07488168
ABSTRACT:
The present invention relates to a method and apparatus for fabricating a reinforced concrete cylinder, and more specifically to a method for centering a reinforcing frame within a form used during the placement of a concrete slurry. One embodiment of the present invention includes a plurality of centering arms that are adapted for selective engagement with the reinforcing frame, thus maintaining it in the predetermined radial location during the fabrication process.
REFERENCES:
patent: 3262175 (1966-07-01), Gourlie et al.
patent: 5236322 (1993-08-01), Willert
Hohl, III Herbert L.
Reed Allen J.
Davis Robert B
Oldcastle Precast, Inc.
Sheridan Ross PC
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