Resin seal ring and manufacturing method

Details Resin seal ring and manufacturing method Resin seal ring and manufacturing method

2009-06-04

2011-10-04

Patel, Vishal (Department: 3674)

Seal for a joint or juncture

Seal between relatively movable parts

Piston ring or piston ring expander or seat therefor

C264S328900

Reexamination Certificate

active

08028997

ABSTRACT:
The present invention provides a seal ring which can be prevented from being broken by an expansion and a shock applied thereto when the seal ring is fitted on a rotary shaft and does not have a configurative disadvantage such as a burr. Therefore no post-processing is required. The present invention also provides materials of the seal ring and a method of manufacturing the seal ring. The seal ring is made of resin and having two abutments confronting each other and a gate mark formed in an injection molding operation.

REFERENCES:
patent: 5628519 (1997-05-01), Kakehi
patent: 5664536 (1997-09-01), Bigsby
patent: 6045135 (2000-04-01), Feistel
patent: 6631908 (2003-10-01), Mittler et al.
patent: 56-15437 (1981-02-01), None
patent: 08-233110 (1996-09-01), None
patent: 08-276508 (1996-10-01), None
patent: 09-042455 (1997-02-01), None
patent: 09-094851 (1997-04-01), None
patent: 2001-271928 (2001-10-01), None
patent: 2002-301742 (2002-10-01), None

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