Abstract: An improved lipectomy device, or cannula, is disclosed having inner and outer tubes. The outer tube has an elongated aspiration aperture, and the inner tube has a spiral slot. A mechanism inside the handle of the device causes the inner tube to rotate, creating a traveling hole effect along the aspiration aperture. This obviates the necessity of the surgeon repeatedly pushing the cannula in and out. A valve system is also disclosed which allows the surgeon to maintain negative pressure in the vacuum line leading to the cannula while still allowing the cannula itself to be vented to ambient pressures.

Abstract: An aircraft takeoff monitor having distance traveled sensors for measuring the distance traveled after the initiation of the takeoff roll. These sensors are interfaced with an onboard computer to provide the computer with information on the actual distance traveled by the aircraft since the takeoff run was initiated. The computer is programmable to receive predetermined input signals, including runway length, real-time inputs, and the initiation time, with the computer constantly generating a predicted ground distance that should be traveled since the initiation of the takeoff run. The computer is further programmed to compare the actual ground distance traveled to the predicted ground distance which should have been traveled and provide a display signal representative of this comparison on an onboard display instrument.

Abstract: In a lamp, a construction is set forth including a low voltage power source including an adjustable supply to a transformer in a base wherein the transformer is connected with a pair of coextensive arms. The arms are preferably made of metal and are the conductors. The voltage level is intrinsically safe. The arms extend to remotely support a housing with a bulb therein. The housing has a pair of oppositely positioned sockets and the arm supports miniature banana plugs which stab into the sockets to provide electrical current for bulb operation and to also serve as a pivot for the housing. In addition, a greater measure of freedom is obtained by incorporating a pivot wherein the arms pivotally connect with a second pair of coextensive arms to provide an added degree of freedom.

Abstract: A method is provided for utilizing a nonintrusive, noncontacting electric field sensing device to detect faults in high voltage transmission line insulators. The electric field surrounding an unfaulted insulator is mapped using a spherical dipole to obtain a characteristic reference curve. The field of a suspect insulator is then mapped to obtain a test curve which is compared with the reference curve to determine the existence of and location of a fault.

Abstract: An outdoor sleeping system is provided incorporating a ground cover sheet to which is attached a tent cover in the form of a body section and a head section which are releasably interconnected by a slide fastener or other suitable connector. The tent cover is secured to the ground cover sheet by means of one or more slide fasteners enabling complete removal of the head and body portions of the tent cover or either of the head and body portions thereof as desired. The tent cover is constructed to permit efficient lateral or end entry into the sleeping system as is desired by the user under the conditions involved. Under wet conditions, lateral opening of the tent cover permits entry by the user while the tent cover prevents rain from getting into the sleeping system. The tent cover is supported in upright position by a plurality of ribs each of which being collapsible to a shortened condition for closure and rolling of the sleeping system.

Abstract: Disclosed is a wall system having vertical and horizontal panel gripping members connecting a plurality of panel members. The vertical and horizontal panel gripping members are covered by a veneer cap extending over the vertical and horizontal panel gripping members and being bonded to the panel members providing a panel-to-panel seal about the panel gripping members on the exterior of the wall system.

Abstract: For drilling mud during use in drilling a well an additive of FE Chelate is disclosed. The chelating agent preferably includes EDTA, HEDTA, NTA, or DTPA. It is oxygen regenerated at the surface to enable repeated use to remove H.sub.2 S. Any H.sub.2 S is converted to elemental sulfur, reducing risk of poisoning.

Abstract: A system and a method for measuring the leakage flow rate from an impounded liquid through a tear or hole in a geomembrane liner is set forth. It utilizes a narrowed passage connected with an inverted funnel to confine the flow, and further includes forming a transverse magnetic field thereacross, a sensor mutually perpendicular to the passage and the magnetic field and a voltmeter connected to the sensor for measuring the voltage. The voltage is dependent on the rate of flow of the leaked liquid along the passage.

Abstract: A repair terminal is disclosed for reworking defective components on printed circuit boards. The terminal has a heater arm which lowers itself over the component, and directs hot gas thereon. A vacuum shroud surrounds the heat zone around the component and removes excess heat so as to minimize damage to surrounding components. The heater arm has inner and outer tubes, the inner tube delivering hot gas the outer tube removing it. Thus the outer tube prevents an operator from being burned by the dangerously hot temperature of the inner tube. A workholder is also disclosed for holding and aligning the circuit board with the heater arm. The workholder is capable of adjustment along the X- and Y-axes as well as in the theta orientation.

Abstract: A ventilation system for cooling the accessory board area of a personal computer is disclosed. The system incorporates two thin fans capable of producing an airflow of 25 cubic feet per minute. The entire system is small enough to mount between the chassis of the computer and the outer cover, thereby avoiding disfigurement of the external appearance of the machine. A lower plenum attached to the housing of the system helps direct air toward the lower portion of the accessory boards. The fans are powered by a direct current voltage, and a grounding clip on the unit automatically attaches to the chassis, requiring only one connection to the disk drive connector. An electroluminescent lamp is employed to indicate operation of the system.

Abstract: A therapeutic device for supporting the head face down during an operation. The device is comprised of a pillow having a T-shaped void therein conforming to the contours of the face. One or more channels may be cut in the pillow to provide airways or allow insertion of a tube into the patient's mouth. A support structure is also described for use with the pillow. The support structure allows the patient's face to be seen, even while lying down, and consists of a plate attached to the end of a table by clamps, having a mirror below whose orientation may be adjusted.

Abstract: For use in determing the rate of loss of liquid from an impoundment, the loss being through a leak in the impoundment and further making such measurements in the presence of surface losses due to evaporation, an apparatus is set forth which includes first and second open ended columns for receiving the impounded liquid therein. The first column is isolated while the second column is communicated near the bottom thereof with a passage into the impoundment so that its height will fall with the height of liquid in the impoundment. A measuring means is interposed betwen the two columns to measure differences in height. The two columns are equipped with baffles to suppress column height agitation. The measuring means comprises first and second communicated respectively with the first and second columns, said chambers being filled with first and second liquids which are not miscible, which differ in dielectric constant, and have different densities.

Abstract: A transducer defined by a laser is set forth. Strain, movement, velocity, temperature, pressure, and vibration coupled to the laser change the lasing frequency or form a Doppler shift. The laser is thus installed at a specified location to couple a measured phenomenon and thereby enable transmission of the encoded variable in the laser beam. A receiver located remote from the laser picks up the beam for data retrieval.

Abstract: A method and apparatus for determining the rate of flow of a leak through a geomembrane is set forth. In the preferred and illustrated embodiment, a surrounding lower skirt having a peripheral weight thereabout is placed on the bottom to surround the location of the leak. The skirt supports a cover. A portion of the skirt or cover is made of an ionic and electrically permeable membrane to permit current flow. A second liquid is defined to be miscible with the first liquid and to have a markedly different electrical conductivity. The rate of flow of the second liquid out of the lower skirt and cover is determined by measuring the electrical potential between liquid in the impoundment and the second liquid within the skirt as the electrical conductivity of the surrounding earth is altered by invasion of the second liquid into the soil under the geomembrane liner. The apparatus utilizes a reservoir of the second liquid which is delivered through a suitable valve and fill hose into the lower skirt and cover.

Abstract: Sampling bullets of the type which are fired into rock formation surrounding a wellbore. The core sampling bullet includes an internal core barrel which is defined in part by a core receiving sleeve releasably secured within the bullet structure. Following bullet retrieval, the bullet is disassembled thereby permitting rearward removal of the core sleeve with core entrapped therein. Following extraction from the bullet, the core sleeve protects the core during handling and testing. The removed core sleeve is further closed by end cap members to further secure the core against contamination and against further loss of gas in core sample prior to testing. The bullet construction also provides for efficiency of hydraulic venting during firing and provides efficiently for bullet with core removal by means of one or more cables. Core orientation is also achieved.

Abstract: In a drill string connected to a wash pipe for retrieval of a fish in a well borehole, an apparatus comprising a connected tubular member therebetween having an internal movable sleeve. The sleeve is located close over a set of bypass ports to the exterior. The ports are selectively opened or closed; when closed, the fluid flow is directed to the fish in the wash pipe. A method of washing is set forth including the steps of controlling fluid flow so that, during running in of the wash pipe over the fish, fluid is bypassed. The bypassing occurs during the fish engagement improving speed of running in up to the time the wash pipe telescopes significantly over the fish.

Abstract: A hydraulic impact tool having a housing, a working tool, a ram, an energy storage device, and a valve slide. The tool also has a high pressure hydraulic fluid inlet port, an intermediate pressure hydraulic fluid inlet port, and two return lines. One of the return lines is for exhausting fluid from an upper annular chamber, and the other return line is for exhausting fluid from an intermediate annular chamber.

Abstract: A downhole running tool for positioning and locking tool support mandrels within landing nipples of the production tubing string of a well. A housing is provided which forms an internal receptacle receiving upper and lower core sections forming an elongated core which is telescopically movable to collapsed and extended positions defined by spaced stops formed by the housing. A portion of the core extends from the housing for connection with a tool support mandrel. A collet type releasable retainer secures locking lugs of the housing in a substantially fixed position within the internal receptacle and is movable to a lug release position upon contact with the landing nipple during upward movement of the downhole running tool to thus permit spring urged movement of the core to force the mandrel from its retracted position to its locating position.

Abstract: A method for determining the injection source of an injection fluid which will break through at the production wells of a subterranean flooding project is disclosed in the preferred embodiment. The source of the injection fluid is determined by injecting halocarbon tracer compounds into the fluid stream injected into the subterranean formation. The tracer compounds of the injection are identified by gas chromatography/electron capture detection analysis.

Abstract: A double opening gate latch for single and double gates and capable of being unlocked and opened from either side thereof. First and second latch brackets are fixed to opposite ones of a gate and fence assembly or a double gate assembly, the latch brackets being positioned on opposite sides from one another. A latch bar is provided on one side of the gate assembly and is positioned for registry with a latch bracket. A pivotal latch member extends through the gate or fence assembly and includes a part that is pivotal into latching registry with the other latch bracket. The pivotal latch member is positionable in locking and unlocking relationship with the latch bar. The latch apparatus permits the gate to be unlatched from either side thereof and also permits the gate to be securely locked on either or both sides thereof.