F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
277/20
F16J 15/34 (2006.01) E21B 33/04 (2006.01) E21B 33/12 (2006.01) F16J 15/16 (2006.01) E21B 33/00 (2006.01)
Patent
CA 1164022
Abstract For sealing between an inner part and an outer part which are generally concentrically related so as to have an annulus between them, an elastomeric sealing annulus is axially sandwiched between two beveled anti- extrusion rings, each of which has a deflectable lip. There is a first running clearance radially between this assembly and the bore of the outer part, and a second running clearance between this assembly and the outer peri- pheral surface of the inner part. When the two parts and the sealing assembly all reach their intended relative positions the seal is established by axially compressing the assembly sufficiently to significantly de-bevel both of the anti-extrusion rings, deflect their lips into contact with one of the parts while urging their opposite edges into contact with the other of the parts. As the elastomeric sealing annulus is axially compressed it expands radially inwards and outwards into resilient sealing engagement with the two parts.
402379
Bridges Charles D.
Mcgee John K.
Combustion Engineering Inc.
Ridout & Maybee Llp
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