The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 14, 1982
Filed:
May. 19, 1981
John K McGee, Houston, TX (US);
Charles D Bridges, Houston, TX (US);
Combustion Engineering, Inc., Windsor, CT (US);
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 peripheral 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.