Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1980-02-22
1981-12-08
Lowe, James B.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264230, 264250, 264273, 264DIG71, 264DIG76, B29C 604, B29C 2700, B29D 900
Patent
active
043047491
ABSTRACT:
A method is disclosed for assembling fluidic spray devices wherein a fluidic element formed on the surface of a body member is expeditiously sealed to form the device. The essence of the invention is the injection molding of plastic around or through the body and a cover plate, or into a prefabricated housing into which the body member is inserted, to preload the parts and force them into a permanent sealed assembly. In one embodiment the preloading is achieved by shrinkage tension of injected plastic material surrounding or penetrating the parts. In a second embodiment the preloading is achieved by injecting plastic material into a gap or gaps in a product housing containing the body member so as to force the element surface against a sealing surface.
REFERENCES:
patent: 2687260 (1954-08-01), Morris
patent: 3221089 (1965-11-01), Cotton
patent: 3287485 (1966-11-01), McCord
patent: 3293106 (1966-12-01), Cocco et al.
patent: 3339609 (1967-09-01), Cushman
patent: 3362302 (1968-01-01), Friedman
patent: 3458619 (1969-07-01), Prochaska
patent: 3698961 (1972-10-01), Niemann
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