Abstract: A ram assembly is disclosed. The ram assembly includes a ram wedge, a blade, and a ram seat. The ram wedge has a tubular cavity therethrough for receiving the tubular. The ram wedge is slidably positionable in the ram channel between a retracted and an extended position, and has rails extending therefrom. The blade is positionable about the tubular cavity, the blade carried by the ram wedge to cuttingly engage the tubular. The ram seat is positionable in the housing about the passage, and has a hole for receiving the tubular therethrough. The ram seat also has an outer surface interlockingly engageable with the rails as the ram wedge moves relative thereto whereby a gap is reduced therebetween.

Abstract: A ram assembly is disclosed. The ram assembly includes a ram wedge, a blade, and a ram seat. The ram wedge has a tubular cavity therethrough for receiving the tubular. The ram wedge is slidably positionable in the ram channel between a retracted and an extended position, and has rails extending therefrom. The blade is positionable about the tubular cavity, the blade carried by the ram wedge to cuttingly engage the tubular. The ram seat is positionable in the housing about the passage, and has a hole for receiving the tubular therethrough. The ram seat also has an outer surface interlockingly engageable with the rails as the ram wedge moves relative thereto whereby a gap is reduced therebetween.

Abstract: Ram seal units for attachment to the rams of blowout preventers incorporate an integral ram seal block having a central web, with a parallel rectangular elastomer support plates extending from opposite sides of the integral ram seal block. The central web is perforate to permit its interlocked relation with elastomer sealing material that is molded to ram seal block. The generally rectangular elastomer support plates define outer face surfaces that remain exposed after the molding operation has been completed. These outer face surfaces of the elastomer support plates are adapted to be disposed in intimate face-to-face relation with internal wall surfaces of ram seal receptacles that are provided within BOP ram elements. Each of the rectangular elastomer support plates defines a pair of spaced retainer receptacles which receive a respective retainer element of a BOP ram to secure the ram seal units in retained relation within one of the ram seal receptacles of a BOP ram element.

Abstract: A valve controlled by-pass stud mechanism for a structure defining a stud receptacle and having a bleed passage intersecting the stud receptacle and normally containing a pressurized fluid medium. An elongate stud body is positioned in sealed relation within the stud receptacle and has a vent passage and defines an internal valve seat located about the vent passage and also defines a valve receptacle having internal threads. A needle valve is in threaded engagement with the internal threads of the valve receptacle and is movable by its threaded engagement within the valve receptacle between a closed position in sealing engagement with the valve seat and blocking flow of pressurized fluid from the bleed passage to the vent passage and an open position spaced from the valve seat and permitting flow of pressurized fluid from the bleed passage to the vent passage.