Method of manufacturing a composite seal

Details Method of manufacturing a composite seal Method of manufacturing a composite seal

1992-10-08

1994-09-13

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

264262, 264277, 425DIG47, B29C 3314

Patent

active

053466624

ABSTRACT:
A method for forming a composite seal is disclosed. The seal includes a seal ring made from a lubricous fluorocarbon material affixed by a positioning collar to a seal casing having axial and radial flanges. The casing radial flange has an inner margin and a given outer diameter, and the seal ring has contact and non-contact faces. The seal ring also includes at least an outer margin of frustoconical configuration, terminating in an outer edge of a given diameter. The method includes positioning the seal ring and the casing in a multi-element mold, closing the mold and filling the mold cavity thus formed with a fluent, curable elastomer which is permitted to cure into a solid collar positioning the seal ring and affixing it to the casing. Thereafter, portions of the positioning collar are cut away to leave the seal ring secured to the casing by a positioning collar of substantially reduced, thin cross-section.

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patent: 3193884 (1965-07-01), Haynie et al.
patent: 4125247 (1978-11-01), Gabrys
patent: 4653980 (1987-03-01), Wentworth
patent: 4689190 (1987-08-01), Peisker et al.
patent: 4969653 (1990-11-01), Breen
patent: 5082612 (1992-01-01), Butler

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