Concrete forming system and method of using it

Details Concrete forming system and method of using it Concrete forming system and method of using it

1980-08-25

1984-01-24

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264337, 249122, 249134, 249142, 249144, 249145, 249150, 249175, B28B 114, B28B 706, B28B 734, B28B 736

Patent

active

044276192

ABSTRACT:
A form for preparing a poured concrete hollow shape having a transverse hole through a wall of the shape comprising a form of at least one releasable section, a central core for said hollow, and a core for said transverse hole abutting said central core and said releasable section; said transverse hole core having a surface of a fluorocarbon elastomer where said surface is contacted by poured concrete.

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