Plastic and nonmetallic article shaping or treating: processes – Reactive gas or vapor treatment of work
Patent
1996-02-06
1998-03-17
Aftergut, Karen
Plastic and nonmetallic article shaping or treating: processes
Reactive gas or vapor treatment of work
264162, 264232, 264250, 264275, 264279, 2642791, 264333, 264340, B28B 114, B28B 722
Patent
active
057283346
ABSTRACT:
A form assembly for forming vertical concrete walls for prefabricated apartment and office modules. The form assembly has a wall form having a plurality of internal wall forms and corresponding external wall forms. The wall form is connected to a support structure, and a plurality of hydraulic lifting cylinders connect to the support structure to raise and lower the wall form. The form assembly may also have hydraulic open and close mechanisms, hydraulic form ties and a control console for the hydraulic system. External corner mechanisms may be provided for locking the external form corners in place prior to concrete pouring. An efficient method of manufacturing the modules includes several steps. Slab reinforcement bars and conduits are layed on a slab deck. Concrete is poured over the slab reinforcement bars and conduits to form a slab. Wall reinforcement bars and conduits are erected on the slab for vertical walls. Form pairs are hydraulically lowered and are hydraulically closed about the pattern of wall reinforcement bars and conduits. Concrete is poured into the closed form pairs, and the concrete is steam cured. The form pairs are hydraulically opened and raised.
REFERENCES:
patent: 1679040 (1928-07-01), Lake
patent: 3595514 (1971-07-01), Sanders
patent: 3743232 (1973-07-01), Vaughan
patent: 4272050 (1981-06-01), del Valle
Aftergut Karen
Daewoo Hawaii Corporation
LandOfFree
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