Metal deforming – By use of non-deforming work-gripping clamp and relatively... – By individually non-deforming clamps
Reexamination Certificate
2006-08-01
2006-08-01
Crane, Daniel C. (Department: 3725)
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
By individually non-deforming clamps
C140S107000
Reexamination Certificate
active
07082802
ABSTRACT:
The present invention relates to an apparatus and method for selectively producing a deformation in a reinforcing frame employed in the fabrication of concrete pipes or other similar construction materials. The deformation maintains the frame in the proper predetermined location inside the concrete form during fabrication to thus produce a concrete pipe with optimum structural properties.
REFERENCES:
patent: 1720183 (1929-07-01), Parmer
patent: 2650637 (1953-09-01), Paxson
patent: 3192962 (1965-07-01), First et al.
patent: 3561501 (1971-02-01), Fauteux
patent: 4515004 (1985-05-01), Jaenson
patent: 5724852 (1998-03-01), Lee
Crane Daniel C.
Oldcastle Precast, Inc.
Sheridan & Ross P.C.
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