Resources Contact Us Home
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
Automatic actuator for breakers or switches
Method and apparatus for compensating QoS during handover by base station in wireless broadband access system
Managing a packet service call within mobile communications user equipment
Paper product with surface pattern
Off-loading of processing from a processor blade to storage blades based on processing activity, availability of cache, and other status indicators
Targeted gene deletions for polysaccharide slime formers
Systems and related methods of user-guided searching
  Randomly Featured Patents
Intake valve lift control system
Systems and methods for real-time viewing and manipulation of information hosted on third-party systems, including metrics, false acknowledgements, and auto-completion for inputting informatio
Adjustable clamping frame
System and method for adaptively managing pages in a memory
Articulated barrier insertion attachment
Methods and compositions for producing full length cDNA libraries
Method and apparatus for controlling the braking of a printing machine
Electronic film editing with system having telecine mode and film writing mode
Molded article laminated with heat insulating sheet member and production process therefor