Abstract: The subject invention provides a gas turbine engine in which a cooling system is utilized to lower the temperature of light hydrocarbon liquid fuel before the fuel is injected into the combustors. Specifically, the fuel cooling system is deployed in the fuel delivery system upstream of the combustors to lower the temperature of the liquid fuel below the flash point temperature, preventing phase change and premature combustion. In the preferred embodiment, the cooling system is a closed loop system comprising a heat exchanger, a containment reservoir, and a refrigeration unit. Brine is circulated within the loop, such that cooled brine is passed into the heat exchanger to act as a heat sink for the light hydrocarbon flowing therethrough. Warm brine exiting the heat exchanger is directed into the refrigeration unit for cooling before being collected and stored in the containment reservoir. The cooled light hydrocarbon exits the heat exchanger and is injected into the gas turbine engine.
Abstract: A coiled tubing composite comprising insulated coiled tubing, concentric coiled tubing and insulated concentric coil tubing, including structure with centralizers and providing an annulus for insulation. The invention includes a method for assembling concentric coiled tubing, with insulation, and apparatus in combination with the insulated coiled tubing composite for heat assisted production of hydrocarbons and minerals from a wellbore.
Type:
Grant
Filed:
January 27, 1997
Date of Patent:
January 18, 2000
Assignees:
BJ Services Company U.S.A., Nowsco Well Service Ltd.
Inventors:
H. Bernie Luft, Graham Wilde, Peter J. Pelensky
Abstract: A guide system for injecting continuous conduit or tubing into a well under pressure including a closed pressurized chamber for equalizing the interior and exterior pressure on the conduit in the area where the conduit is under maximum stress due to bending or flexing. The chamber may be installed on a standard wellhead or injection head. Low friction guide sleeves are provided as a bearing surface for the conduit in the pressurized chamber.
Type:
Grant
Filed:
October 2, 1996
Date of Patent:
December 28, 1999
Assignee:
Stewart & Stevenson, Inc.
Inventors:
Michael Patrick Dearing, Michael Lee Smith
Abstract: An improved additive eductor for supplying additives, including foam concentrates and thixotropic foam concentrates, into a hand line or waterline for supplying a nozzle used for fire fighting operations wherein the additive eductor can be operated in either eductive or non-eductive by-pass mode and further comprising in a prefered embodiment a back-flow preventative metering valve attached to a additive port.
Abstract: Apparatus and method for freezing large pipe plugs, including in particular subsea applications, wherein the apparatus includes a jacket adapted to encircle a section of large pipe, a recycling refrigeration unit having said jacket connected as an evaporation chamber and, for subsea applications, a submersible housing enclosing a portion of such refrigeration unit; the method including landing a submersible recycling refrigeration unit on or proximate a pipe and cycling, and preferably reverse cycling, a refrigerant therethrough.
Abstract: A method for extinguishing flammable and combustible liquid tank fires using foam comprising empirically determining a footprint for a plurality of nozzles and configuring and aiming nozzles with respect to a tank such that predicted footprint and foam run would cover a tank surface with foam. Also method and apparatus for extinguishing tank fires including crude and high vapor pressure flammable liquid tank fires that includes applying foam in a footprint to cover liquid surface and cooling portions of the tank wall.
Abstract: An additive supply system for fire fighting mechanisms such as a fire fighting truck including an additive supply line system having a pump and a recirculation line, a balanced pressure valve metering flow in the recirculation line and in communication with the measure of additive line pressure and fire fighting fluid line pressure, and additive pump control apparatus connected to the additive pump and in communication with the measure of the degree of openness of the balanced pressure valve.
Type:
Grant
Filed:
April 24, 1995
Date of Patent:
October 6, 1998
Assignee:
Williams Fire & Hazard Control, Inc.
Inventors:
Thomas E. Mason, Dennis Crabtree, Kenneth Baker
Abstract: A fire fighting nozzle wherein an additive fluid, such as foam concentrate or other liquid or gas, is supplied to a fluid passageway located peripherally along portions of a nozzle barrel wall and is discharged proximate the barrel discharge end, and preferably including educting the additive fluid into the nozzle using flow of the liquid through the barrel.
Type:
Grant
Filed:
August 9, 1995
Date of Patent:
July 14, 1998
Inventors:
Leslie P. Williams, deceased, by Dwight Williams
Abstract: An in-resident system for administering a course of study using a central data processor having access to a program and using residential/business scale equipment including a terminal and screen that can communicate with the program or a portion of the program, at a remote in-resident location and time the system including a method for personal validation of the remote student and for administering the course of study remotely.
Type:
Grant
Filed:
June 3, 1994
Date of Patent:
December 23, 1997
Inventors:
Oscar R. Johnson, III, Marschall S. Owens
Abstract: A safeguarded method and apparatus for providing fluid communication with coiled tubing, said coiled tubing comprising more particularly coiled-in-coiled tubing, having a inner tube and an outer tube, and including multicentric coiled-in-coiled tubing and its method of assembly, the safeguarded method having particular applicability to drill stem testing.
Abstract: An improved impact absorbing system for footwear including a compartment having a radiator structure attached to the footwear in fluid communication with an impact absorbing pad in the footwear for cooling the pad fluid heated by repeated compression, as the fluid circulates.
Abstract: This invention relates to anionic compositions, containing an alkyl aryl sulfonic acid or salt thereof, a nonethoxylated glycol and an acetylenic alcohol in an alkyl alcohol solvent, that have proved effective for controlling sludge and emulsion formation during acid stimulation and treatment of hydrocarbon wells.
Abstract: A thrust reverser system for jet engine comprising a tailpipe, clamshell doors and actuators, wherein the tailpipe and clamshell doors may be corrugated, the corrugations mating, the actuators may be situated out of the external free air flow, the doors may be stowed out of contact with internal engine gas flow and that may include a tailpipe aft fairing having a movable section and a pressure booster system for the actuators.
Abstract: Apparatus and method for anchoring a tool box to a pick-up truck bed utilizing struts attaching between opposing sidewall portions of the truck bed such that the box is anchored out of contact with truck bed surfaces.
Abstract: Mechanical foam fire fighting equipment and method wherein an inert gas is delivered to a foaming chamber of a mechanical foam making assembly, the foaming chamber also receiving a liquid and foam concentrate, the inert gas in some embodiments being supplied by the exhaust of an engine.
Type:
Grant
Filed:
July 11, 1994
Date of Patent:
November 19, 1996
Assignee:
CCA, Inc.
Inventors:
Kenneth C. Baker, Dwight Williams, Leslie P. Williams
Abstract: An owner oriented system for locating lost or stolen property comprising a GPS module, micro computer, a modem and a phone installed in a vehicle; regularly and automatically computing position data; and, under control of a program, storing novel position data in a buffer and downloading upon proper request from an incoming call.
Abstract: Substantially purified beta (1,3) glucan extracts obtained from yeast cell walls, particularly finely ground, and including nutritional and dermatological applications, are disclosed.
Abstract: The present invention provides a method for extinguishing ship container fires by introducing an inert gas into the container to drive combustible gas such as air out of the container. The method includes the steps of drilling at least one hole in a wall of a ship container, attaching a toggle bolt to one end of a wall fitting, sliding a gasket over the other end of the wall fitting, inserting the wall fitting into the drilled hole such that the toggle bolt expands against the inside wall of the container, sealingly attaching the wall fitting around the drilled hole, attaching tubing to the fitting to establish fluid communication between the tubing and the inside of the container, coupling a portion of the tubing to a source of inert gas, and controlling the communication of the inert gas through the tubing and fitting to drive combustible gas out of the container.
Abstract: A method for extinguishing flammable and combustible liquid tank fires using foam comprising empirically determining a footprint for a plurality of nozzles and configuring and aiming nozzles with respect to a tank such that predicted footprint and foam run would cover a tank surface with foam.