Abstract: This invention is directed toward a fiber optic modulation and demodulation system, and more particularly directed toward a telemetry system for relaying signals from sensors in remote, harsh environments. Light is modulated using one or more optical reflective grating and piezoelectric crystal combinations, and demodulated using an interferometer system. The one or more modulators are driven by the responses of one or more sensors thereby modulating one or more carrier wavelengths of a carrier light source. The modulated light signal is transmitted from the sensor or sensors, over an optical fiber, to an interferometer which is used to demodulate the reflected signals and thereby determine the responses of one or more sensors. One embodiment of the invention set forth is that of a telemetry system linking sensors within a borehole to detection and processing equipment at the surface of the earth.

Abstract: A hydrophone structure comprises a hydrophone casing within which is mounted a conductive substrate. Sound pressure signals are conducted into the interior of the substrate, on which are mounted piezoelectric crystals on the exterior of the substrate. The volume between the casing and the substrate is nearly filled with a fluid, preferably oil. One or more bubbles of air remain in the volume between the casing and the substrate to permit vibration of the substrate and consequently the piezoelectric hydrophone element.

Abstract: A hydrophone transducer is prepared by depositing a piezoelectric material upon a conductive substrate or support structure, and then etching the material into selected regions or segments. The center segment, which provides most of the fundamental signal, is polarized in a first direction by the introduction of a polarizing voltage. The end segments are polarized in the opposite direction by the imposition of a polarizing voltage in the opposite direction. The conductive substrate then serves as one terminal of the output of the hydrophone while the upper surfaces of the segments together serve as the other terminal. The relative strengths of the signals from the segments may tailored by adjusting the areas of the segments.

Abstract: A method for well borehole survey is set out. A sonde supports X and Y accelerometers and X and & sensors on a rate gyro having a Z axis aligned with the sonde. On a slickline, or within a drill string, the sonde is used to measure four variables, these being G.sub.x and G.sub.y, A.sub.x and A.sub.z. This enables well azimuth and inclination to determined. Measuring depth enables a survey to be made.

Abstract: This disclosure is directed toward field emission surfaces, and is more particularly directed toward improvements in cold, low field, high current, low noise field emission devices and surfaces. Such devices are used in field emission display devices such as video displays and information displays. The device utilizes a cermet with graded concentration of insulative and conductive particles deposited on the truncated point of a conical emitter. The emission surface of the cermet is insensitive to gases that oxidize or poison the emission surface. Such gases and other contaminants emanate from a phosphor when the emission device is used in phosphor display devices. The field emission device is operated at lower potentials thereby reducing power requirements and minimizing heat dissipation requirements. Further, the field emission device which operates at lower field in order to reduce mechanically and temporally unstable emission sites which result in current bursts and current deficits at these sites.

Abstract: A cutting element which has a metal carbide stud having a conic tip formed with a reduced diameter hemispherical outer tip end portion of said metal carbide stud. A layer of polycrystalline material, resistant to corrosive and abrasive materials, is disposed over the outer end portion of the metal carbide stud to form a cap. An alternate conic form has a flat tip face. A chisel insert has a transecting edge and opposing flat faces. It is also covered with a PDC layer.

Abstract: A hazardous materials container provides an enclosure for the transshipment of biological and other materials. The enclosure provides a portable, disposable, and/or reusable container. A first outside layer is constructed of a corrugated fiberboard. An inside lamination of reinforcing material, such as polyethylene terephthalate provides mechanical robustness to the container that meets new regulations for impact on such a container during shipment. Sections of reinforcing materials are recessed from the edges of the fiberboard. When assembled, the die-cut and bonded reinforcing materials provide a transportation container system suitable for shipping infections substances and other hazardous materials. The reinforcing materials permit fabrication of containers which protect the inner primary receptacles which are used to contain the transported materials.

Abstract: The present disclosure is directed to a power plant, and especially two or more such power plants connected together. The power plant especially features a piston connected with a reciprocated but non-rotating piston rod which connects with a pump piston at the opposite end. Power is generated by the power piston and imparted through straight reciprocating motion to the pumped piston. Two or more of these power plants are operated together by connecting them together through a connective mechanical link so that operation of one times the operation of two or more units slaved to the first. Synchronized operation is obtained.

Abstract: The disclosed apparatus and method relate to a cleaning nozzle which, in multiple embodiments, is rotated in a circle or in an ellipse, being one nozzle in one embodiment and multiple nozzles in alternate embodiments so that the surface of a pipeline can be clean with high pressure water or other fluids. Furthermore, the rotating nozzle is supported in a carriage in one embodiment which encircles and travels along a pipeline. The carriage is supported by drive wheels which cooperate with separate drive motors and a control circuit to assure that the carriage remains upright. Multiple rotating nozzles are supported in the carriage to clean adjacent portions of the pipeline. Alternate embodiments are shown for cleaning a horizontal surface with a hand pushed or motorized version, and another version is disclosed supported on a moveable boom, thereby enabling cleaning of an upstanding vertical surface such as the hull of a ship.

Abstract: The present invention provides temporary protection of outside objects from wind, rain, snow, or other elements. In particular, the present invention is a system of supports and fabric or plastic panels that are erected to provide a continuous protective covering over an area, structure, or object. The components of the system may be assembled in various configurations as the situation demands. The system requires minimal labor to install and the covering can be readily raised and lowered as desired.

Abstract: The present invention relates to blends of individual corrosion inhibitors with phosphate esters for protection of ferrous metals against attack by a corrosive environment. These blends are synergistically more effective than each of the individual corrosion inhibitors. The phosphate esters of the present invention are the reaction products of ethoxylated, propoxylated, or butoxylated alcohols or phenols with phosphating agents. Other corrosion inhibitors suitable for blending with the phosphate esters include fatty amines, poly amides, imidazolines, poly imidazolines, quaternary amines, poly quats and dimer, trimer, and polymeric acids. Phosphate esters may comprise any portion of the total amount of corrosion inhibitors in the blend, but the preferred concentration is from about 5 to about 50 weight percent phosphate ester. The corrosion inhibitor blends may be diluted to any concentration with solvents or other fluids as necessary for particular applications.

Abstract: This invention discloses a system and method for the disposal of solid waste that contains radioactive material. Radioactive solid wastes generated as scales during oil and gas production operations are collected and placed in a central processing chamber. High-temperature and high-pressure water containing large amounts of dissolve salts is produced from a geothermal subterranean formation and introduced into the solid processing chamber to dissolve the radioactive solid waste. The solid radioactive waste is subjected to a grinding process to microemulsion particle size and treated in an acid.

Abstract: The present invention relates to a specific type of phosphate ester that is as effective or more effective than corrosion inhibitors available in the past. In accordance with the invention, these corrosion inhibitors are highly effective alone or when blended with other specific compounds for protection of ferrous metals against attack by a corrosive environment. More particularly, the inhibitors of the present invention are the reaction products of ethoxylated, propoxylated, or butoxylated alcohols or phenols with phosphating agents.

Abstract: A method and apparatus for sampling an analog signal permits the identification of those samples in which data was lost in the sampling process. A data reference element is generated for each sample element, the data reference element having a corresponding sample element. A user friendly display technique is provided to permit the user to controllably display the sampled signal, clearly showing those portions of the signal in which information was lost contrasted with those portions of the signal that were sampled intact.

Abstract: A portable, pallet-mountable, remotely controlled deluge system provides a means for rapidly delivering a large quantity of a liquid to a region of hazardous materials or a fire. An accumulator, mounted, for example, on a pallet is charged with a quantity of water, aqueous film-forming foam, or other liquid quenching agent. The liquid is pressurized with an inert gas and the liquid is held in the accumulator by an electric/hydraulic valve. The valve is connected to a control panel which is wired to a remote control. The control panel also includes an antenna to receive a remote control signal by electromagnetic communication. The system provides a method of quickly getting a fire-fighting liquid or a deluging liquid to a scene of a fire or a hazardous waste spill without subjecting personnel to the hazard.

Abstract: A movable and flexible net arranged in an M.times.N pattern is set forth. The pattern is defined by a plurality of parallel strands having eyelets therein to releasably engage and hold lamps in a light string. The net of the present disclosure, while supporting an attached light string, can be draped to any contour determined by a supportive surface, and can be likewise positioned in deployed pattern with that contour or stored for later use. The net in the M.times.N rectangular pattern is formed of flexible strands to enable storage.

Abstract: A method and apparatus for the installation of cable into a reel of coiled tubing includes a cable injector. The cable injector comprises a capstan drive within a pressure housing. In a preferred embodiment, the capstan comprises a drive wheel that is enclosed within the pressure housing and the pressure housing is made up of a pair of seal plates or flanges with a seal ring between them. A drive shaft penetrates one of the flanges. This arrangement minimizes the size of a rotating seal in the pressure housing.

Abstract: The present disclosure sets out a sample collection system which involves a single valve having six ports and two positions. The valve is operated to isolate two ports so that the system process flows into the valve. In the other position of the valve, a sample loop is filled. The sample loop includes a sample storage container. The sample loop connects with the container through quick disconnects and separate isolation valves.

Abstract: A system and method of marking goods for authentication and tracking purposes is described. The system and method include a central control which enables the system. The method and system are accomplished in real time, affording manufacturers the ability to eliminate problems associated with counterfeiting and diversion which begin at the manufacturing site. A central control unit enables the system by providing an allotment of goods to a host unit. The host unit directs printing terminals to mark particular goods with specific information encoding symbols. Following marking, goods are scanned to insure proper marking and then packaged for shipment. Following marking, the goods can be checked by illuminating the symbols printed thereon and cross referencing this data with the host database by using a field reading unit.