Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Blade seal for a shearing blind ram in a ram type blowout preventer










Image Number 4 for United States Patent #6158505.

A blade seal for a shearing blind ram designed for use in a standard ram-type blowout preventer used in oil and gas drilling operations is disclosed. The blowout preventer has a body with an axial bore, a pair of opposing bonnet assemblies and a pair of opposing rams laterally moveable within the bonnet assemblies by a pressurized fluid source to control flow of well fluids through the blowout preventer body axial bore. The blade seal includes a generally planar shaped central member that tapers from one end to the other and is constructed of rubber. A pair of metal caps are bonded to the lateral edges of the blade seal to aid in preventing extrusion. The lower face of the rubber central member includes a groove adjacent to the metal cap to aid in preventing extrusion of the rubber. A pair of the blade seals is used in the upper ram of the shearing blind ram assembly. The opposing lower ram has a upwardly facing surface that seals against the pair of blade seals after the pipe is sheared.








 
 
  Recently Added Patents
Image capture apparatus and program
Peer-to-peer method of deploying and managing executable code and associated plug-ins
DFPase enzymes from Aplysia californica
Dihydronaphthyridinyl(organo)methanone analogs as positive allosteric mGluR5 modulators
Compositions substantially free of sodium chloride and methods for the storage of red blood cells
Hydrolases, nucleic acids encoding them and methods for making and using them
Device for preparing a body fluid for a bacteriological analysis
  Randomly Featured Patents
Contact lens and method for making the same
Methods and apparatus for electron beam assisted etching at low temperatures
Pharmaceutical composition for oral use with improved absorption
Method for securely communicating remote control commands in a computer network
Dust-collection head for a dust collection system
Silane free radiation curable abrasion resistant coating composition containing an unsaturated organic compound
Method of preparing an aluminum bridge deck and an aluminum bridge deck configuration for receiving a wearing surface
Assay for peptide metabolites from the amino-terminal telopeptide domain of type I collagen
Optical path with electrically conductive cladding
Control system for an optical data recording apparatus