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

Image Number 3 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
Exposure method, exposure apparatus, and method for producing device
Attribute category enhanced search
System for targeted delivery of therapeutic agents
Qualification screening system and screening method thereof, qualification screening device and device under qualification screening
System and method for providing dynamic navigation through a property to a selected destination
Methods and devices for creating, compressing and searching binary tree
Scalable architecture for rank order filtering
  Randomly Featured Patents
System and method for controlling a user interface
Method of jawbone abutment implant for dental prostheses and implant device
Battery module of improved safety and middle or large-sized battery pack containing the same
Waterborne coating compositions
Actuator for TVRO parabolic antenna
Common mode voltage generation at a differential output of an amplifier
Kneading apparatus for bread dough and the like and a method of controlling the quality thereof during kneading
Safety device for a truck wheel
Apparatus for coating a web
Method and apparatus for storing base and additive streams of video