Static molds – Uniting preform with molding material
Patent
1984-05-01
1986-12-02
Woo, Jay H.
Static molds
Uniting preform with molding material
52577, 249 39, 249 43, 249157, 249177, E04G 1500
Patent
active
046259406
ABSTRACT:
A one-piece, unitary, molded resin wall sleeve precursor member has cup-shaped end sections of external diameter D each having a radial flange, with each flange connecting to a hollow transition section that in turn connects to one end of a series of N coaxial sleeve sections of internal diameter D, the sleeve sections being interconnected by N-1 hollow water stop sections having diameters much larger than D. A wall sleeve assembly is derived from this precursor member by cutting off the end sections at their flanges and cutting off the transition sections to leave a wall sleeve, including the water stop and sleeve sections, having a total length L approximately equal to the width W of a concrete wall. The cup-like end sections are inserted into the ends of the wall sleeve, and their flanges afford a convenient means to anchor the resulting assembly to a concrete form.
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Thunderline Corp. Bul. LS-138.
Housel James C.
Thunderline Corporation
Woo Jay H.
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