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
Synergistic preparations based on mixtures of glycerol ether with aromatic alcohol for controlling mycobacteria
Fuser member
Generator with a segmented stator
Paging of a user equipment (UE) within a wireless communications system
Mechanism for visible users and groups
Rain barrel
Remote controller
  Randomly Featured Patents
Liquid silicone rubber coating composition, curtain air bag, and method of producing same
Method for operating an engine with a fuel reformer
Method of sorting monolithic ceramic capacitors by measuring the insulation resistance thereof
Aircraft precision approach control system
Dual probe test structures for semiconductor integrated circuits
Ball joint apparatus and method of fabrication
Audible alarm and projection lamp attachment for a walking cane
Method and system configured to assess a fee for communication facilitation regarding publication information
Treatment solution and method for preventing posterior capsular opacification by selectively inducing detachment and/or death of lens epithelial cells
System and method for automated assessment of constrained constructed responses