Resin infused acrylic shell

Details Resin infused acrylic shell Resin infused acrylic shell

2004-10-15

2008-03-04

Theisen, Mary Lynn (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

C264S263000

Reexamination Certificate

active

07338628

ABSTRACT:
An improved method of forming fiber-reinforced plastic shells for bathtubs utilizes a fiber mat placed on a rear surface of a plastic shell. The fiber mat is infused with a resin, and is then cured. The mat and resin are preferably received within a vacuum chamber as the resin is infused. Further, the plastic shell is preferably supported on a fluidized bed during this process. The present invention eliminates the need for detailed air handling as is now required to handle impurities in the industrial air around the process of forming the bathtub shell.

REFERENCES:
patent: 2913036 (1959-11-01), Smith
patent: 4943222 (1990-07-01), Nathoo
patent: 5580621 (1996-12-01), Kuszaj et al.
patent: 6149844 (2000-11-01), Graham

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