Resources Contact Us Home
Blade seal for a shearing blind ram in a ram type blowout preventer

Image Number 5 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
Permitting access of slave device from master device based on process ID's
Exposure method, exposure apparatus, and method for producing device
Establishing a social network
Selecting from a plural of energy saving modes
Playback device, playback method, and computer program
Electronic system auto-mute control circuit and control method thereof
Electronic component
  Randomly Featured Patents
Padfolio with tapered elastic outer pocket
Potato strip cutter
Process and coating composition for extending the shelf life of post harvest produce
Method and apparatus for setting a channel congestion message in a wireless multiple access packet data system
Door closer transmission including an eccentric pinion
Tiled touch system
Polishing machine
Torsion coiler
Method for performing contention-based access for real-time application and medium access control hierarchy module
Current divider circuit