Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Reexamination Certificate
2006-12-20
2010-11-02
Tucker, Philip C (Department: 1791)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
C264S031000, C264S336000, C249S048000, C249S050000, C249S051000, C249S125000, C249S128000, C249S129000, C249S130000, C249S136000, C249S142000, C249S144000, C249S145000, C249S158000, C249S160000, C249S176000, C249S188000
Reexamination Certificate
active
07824598
ABSTRACT:
A system for forming thin-wall pre-cast concrete forms and structures, using vertical casting and slip-form techniques to partition wet concrete into separate thin-wall sections, the system being particularly useful for fabricating pre-cast concrete column forms having a composition and vertical consistency substantially the same as the integral poured concrete core of the finished concrete column.
REFERENCES:
patent: 4790508 (1988-12-01), Henderson et al.
patent: 5866026 (1999-02-01), Johnston
patent: 5902528 (1999-05-01), Spragg
patent: 2006/0022112 (2006-02-01), Ishler
Abraham Amjad
Tucker Philip C
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