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US 2014/0271033 A1Published application
Bolt With Integrated Gasket
AssigneeBP Corporation North America Inc.
InventorsKeith L. Johnson, Tobin D. Hood
Life of this patent
Estimating the term…
Abstract
A threaded bolt or plug includes a compressible gasket ring adhered to the underside of the bolt head or plug head. The underside of the bolt head includes at least two concentric grooves covered by the compressible gasket.
Claims20
An apparatus comprising:
- a bolt head having a bearing surface with at least two concentric grooves disposed therein;
- a threaded shaft integrally formed with said bolt head and extending centrally from the bearing surface;
- and
- a compressible gasket ring disposed around the shaft and adheringly disposed on the bearing surface of the bolt head covering the at least two concentric grooves.
1 more element
A method for making a gasketed bolt, the method comprising:
- providing a bolt having a bolt head with a bearing surface on an underside of the bolt head;
- cutting two or more concentric grooves into the bearing surface;
- and
- adhering a compressible gasket ring over the concentric grooves.
1 more element
Dependencies are inferred from the claim text.