Plastic and nonmetallic article shaping or treating: processes – Vacuum treatment of work – To degas or prevent gas entrapment
Patent
1979-12-07
1982-04-27
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Vacuum treatment of work
To degas or prevent gas entrapment
264122, 264129, 264222, 264DIG7, 428323, B29J 100, B29D 2700, B29C 102
Patent
active
043270468
ABSTRACT:
A rigid, shaped, mass support system, such as support or seating appliances for disabled or handicapped persons, is provided by charging a flexible container (2) made of elastic polymeric film with a uniform mixture of rigid particles of a mesh size relatively small compared to the size of the system and a curable adhesive polymeric binder material. The charged container (2) and its contents are molded to adapt to or fit the shape of the mass, such as the contour of that portion of the body to be supported, and evacuated to remove volatiles and fix the shape of the contents of the container. The adhesive binder is then cured to solidify the molded contents of the container to form a composite, from which the polymeric film can be stripped away, after which an adhesive paint is applied to seal and protect the surface.
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Proceedings 5th Annual Conference on Systems and Devices for the Disabled.
Cowsar Donald R.
Davis Thomas A.
Anderson Philip
Southern Research Institute
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