Retained seal assembly

Details Retained seal assembly Retained seal assembly

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 15/10 (2006.01) F16J 15/06 (2006.01) F16J 15/12 (2006.01)

Patent

CA 2130729

12 ABSTRACT A seal assembly (21) is disclosed for use with a housing (H) which defines a fluid chamber (C) and a threaded opening (O). In threaded engagement with the opening is a threaded portion (13) of a device such as a sensor assembly (11). The housing defines a counterbore (CB) disposed axially between the threaded opening (O) and an external surface (S). The seal assembly (21) includes a metalsupport member (23) including a cylindrical portion (27) having inner (33) and outer (35) portions of elastomeric sealing material. The seal assembly is pressed into the counterbore and, by means of the interference fit therebetween, may be permanently retained therein. As the member is threaded into the opening, the underside (16) of the head (15) deforms a sealing lip (39) radially inward into engagement with the threaded portion (13). As a result, the threaded member may be removed and replaced by another, without loss of sealing function, and without the need to replace the conventional, prior art O-ring seal which would normally be retained on the threaded member.

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