Plastic and nonmetallic article shaping or treating: processes – With step of making mold or mold shaping – per se – Utilizing surface to be reproduced as an impression pattern
Patent
1985-07-29
1986-10-07
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
With step of making mold or mold shaping, per se
Utilizing surface to be reproduced as an impression pattern
264 468, 264511, 264102, 264267, 264322, B29C 3340, B29C 3910, B29C 6722
Patent
active
046158561
ABSTRACT:
An improved method for making custom molded seat cushions wherein a bead-filled latex bag is used as a trail buttocks supporting cushion and likewise another bead-filled latex bag is used as back-supporting cushion in a frame which is similar in function to the seat frame of the chair. An impression of a desired portion of a user's body is formed on each of the bags and air is removed from the bags thereafter to fix the impression. A positive mold of the individual's respective backside and buttocks impression are made. Corrective changes may be made either to the latex bag impression as it is being formed or the positive mold impression. The positive mold impression is then utilized along with a mold frame to mold a custom fitted seat cushion for the individual who will utilize the wheelchair. The cushions are then press fit into their respective seat frames and an individualized custom molded wheelchair seat is formed which provides for correctively positioning the individual in full surface contact between the body and seat to minimize or rid the possibility of bed sores, and to place the client in a functional position.
REFERENCES:
patent: 3830896 (1974-08-01), Flicker et al.
patent: 4347213 (1982-08-01), Rogers, Jr.
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