Sealing apparatus

Details Sealing apparatus Sealing apparatus

1993-12-21

1997-01-07

Will, Thomas B.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277229, 427536, F16J 1532

Patent

active

055908870

ABSTRACT:
A sealing apparatus, which provides a seal between a metal surface and a member sliding along the metal surface is made of rubber material which contains a rubber polymer having alkyl lateral chains. At least a part of alkyl group hydrogen of rubber polymer in cortex is substituted from fluorine by plasma treatment. The plasma treatment reduces the noise which is normally present in device as of this type.

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patent: 3788654 (1974-01-01), Mandley
patent: 4076262 (1978-02-01), Deventer
patent: 4361596 (1982-11-01), Dukhovskoi et al.
patent: 4791012 (1988-12-01), D'Agostino et al.
patent: 5041304 (1991-08-01), Kusano et al.
patent: 5112025 (1992-05-01), Nakayama et al.
patent: 5162441 (1992-12-01), Nakata et al.
patent: 5244730 (1993-09-01), Nguyen et al.
patent: 5284543 (1994-02-01), Kusano et al.

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