Plastic and nonmetallic article shaping or treating: processes – Forming structural installations in situ – Repositioning or moving mold to form sequential portions of...
Reexamination Certificate
2007-11-27
2007-11-27
Johnson, Christina (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Forming structural installations in situ
Repositioning or moving mold to form sequential portions of...
C264S333000, C106S038300, C249S165000
Reexamination Certificate
active
10723080
ABSTRACT:
A form for creating cavities within large concrete structures, wherein the formed is created by interconnecting a plurality of section members, the section members having flexible mold skeleton members retaining polymer-aggregate panel members, and wherein the form may be internally pressurized to increase its rigidity and weight-bearing capability. The mold skeleton members have annular and longitudinal flanges that are used as planing guides to form the external surface of the polymer-aggregate panel members. Preferably, spacer members are inserted between the annular and longitudinal flanges and the spacer members are used as planing guides. The adjacent section members are mechanically joined to each other, such that the form may be disassembled and re-used.
REFERENCES:
patent: 992782 (1911-05-01), Lambie
patent: 1552064 (1925-09-01), Lake
patent: 3682434 (1972-08-01), Boenig
patent: 3729165 (1973-04-01), Trimble
patent: 4728073 (1988-03-01), Smith
patent: 4997602 (1991-03-01), Trimble
patent: 5032197 (1991-07-01), Trimble
patent: 5108671 (1992-04-01), Chapdelaine
patent: 5464886 (1995-11-01), Tran et al.
Butler Patrick
Johnson Christina
Saitta Thomas C.
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