Abstract: A captivated seal assembly is disclosed. The seal assembly may include a metal seat shield, an annular elastomeric seal and a metal bonding ring. The metal bonding ring is preferably bonded to and fully encapsulated within the annular elastomeric seal. The composite metal bonding ring and elastomeric seal is contained in an annular recess formed in the metal seat shield. The metal bonding ring is secured to the metal seat shield, thereby retaining the elastomeric seal within the annular recess of the metal seat shield. The metal bonding ring may include a plurality of support pads for engagement with an annular back wall of the metal seat shield.

Abstract: A captivated seal assembly is disclosed. The seal assembly may include a metal seat shield, an annular elastomeric seal and a metal bonding ring. The metal bonding ring is preferably bonded to and fully encapsulated within the annular elastomeric seal. The composite metal bonding ring and elastomeric seal is contained in an annular recess formed in the metal seat shield. The metal bonding ring is secured to the metal seat shield, thereby retaining the elastomeric seal within the annular recess of the metal seat shield. The metal bonding ring may include a plurality of support pads for engagement with an annular back wall of the metal seat shield.

Abstract: A high differential pressure, low torque precision temperature control valve is disclosed herein. This valve is trunnionated with stem components that are separable from the plug for ease of maintenance and manufacturability and thus reducing the need to remove the entire plug and sealing assemblies in the field. Field repair of stem sealing devices can be accomplished inline. The stem design can be smaller in diameter with smaller bearing surfaces than would be anticipated creating a lower requirement of torque to rotationally transposition the plug within the fluid chamber while under high pressure. This valve's lower trunnionated stem is stationery reducing the problems associated with o-ring failure and leakage problems with objects that rotate. Due to the design of the orifices in the plug, this valve is capable of repeatability at lower opening ranges than prior art valves and reduces jetting, caviation and erosion often associated with lower opening ranges.

Abstract: A high differential pressure, low torque precision temperature control valve is disclosed herein. This valve is trunnionated with stem components that are separable from the plug for ease of maintenance and manufacturability and thus reducing the need to remove the entire plug and sealing assemblies in the field. Field repair of stem sealing devices can be accomplished inline. The stem design can be smaller in diameter with smaller bearing surfaces than would be anticipated creating a lower requirement of torque to rotationally transposition the plug within the fluid chamber while under high pressure. This valve's lower trunnionated stem is stationery reducing the problems associated with o-ring failure and leakage problems with objects that rotate. Due to the design of the orifices in the plug, this valve is capable of repeatability at lower opening ranges than prior art valves and reduces jetting, caviation and erosion often associated with lower opening ranges.

Abstract: A hybrid, bi-directional, three-color, wave-division multiplexer (HB3-WDM), fiber optic communication system employs a combination of wide band and narrow band WDMs to multiplex three pairs of optic signals over two fiber optic cables. The three pairs of signals include two pairs in a range centered about 1550 nm and one pair in a range centered about 1330 nm. In one embodiment, modularized HB3-WDMs are used to modify a pre-existing, multi-cable, bi-directional, two-color WDM system. The modified system communicates thirty percent more data while maintaining pre-existing signal attenuation levels and pre-existing back-up capabilities.