Abstract: The construction system can be achieved through the use of a novel prefabricated construction footing. The footing, can have a circular or rectangular top, and a circular base. The sides are downwardly tapered thereby forming a conical shape. If the shape is viewed as a cone or pyramid, then the top portion is truncated thereby forming a frustrum of a cone or pyramid. The top serves as a support surface for a post. The top surface can be curved thereby forming a dome like structure. The dimensions of the footing are such that the ratio of the surface area of the top to the bottom, is on the order of from about 1:1.3 to about 1:8.3. The top surface is substantially parallel to the bottom surface and the angle between the side surface and a line perpendicular to the top surface is at least about 20 degrees. That is, the footing is conical or pyramidal in shape, with a truncated top.

Abstract: A headframe drape for use during stereotaxic procedures, and a method for using the same, is described. The drape is designed to be inexpensive and easy to use. The drape comprises a single rectangular body having first and second connection portions on either side thereof, the first connection portion having hook material thereon and the second connection portion having loop material thereon. The first and second connection portions may be secured together using the hook and loop material, so that a headframe, base ring, or both a headframe and base ring may be secured and adjusted to any desirable degree during a stereotaxic procedure.

Abstract: The invention relates to a manual, self-priming precompression spray pump, which employs a minimal number of different parts. The assembly includes a container for the liquid, a cap, a conventional spray nozzle unit, a valve member, a piston, a spring and a cylinder for housing the piston and providing a compression chamber. The valve upper end functions as an outlet valve and the valve lower end functions as an inlet valve. The spring is a compound spring and serves to force the valve outlet end into a constant sealing engagement with the interior of the piston, and to resist the compression movement of the piston. The cylinder for housing the piston includes an inner, concentric valve cylinder. The inner cylindrical wall has an axial length which terminates short of the chevron valve when said valve member and said piston are fully biased away from said inlet valve, whereby said chevron valve is in a position outside of said inner cylindrical wall.

Abstract: The geothermal heat transfer system comprises a plurality of heat exchange loops placed in the ground at an angle of less than a 20 degrees, but greater than a 5 degrees. Each loop has an out flow line and a return line, and a fluid tight, tapered end, U-turn juncture connecting the lines. A pair of distributors connects to inlet and outlet lines at a lower end and a plurality of outlet members at the upper end. A heat exchange device connects to the loops through the inlet and outlet lines. A liquid-oil-gas separator uses cup member and deflector to create a Venturi fluid inlet to separate the oil, returning it to the compressor. A bore hole drilling device comprises an hollow drilling bit with a cutting member at one end, a central fluid passage, and connecting means. The bore hole drilling device has a swivel member with a body portion and housing with a central bore and an inlet, connect to a water line. The body is position within the central bore and mounted for rotational motion within the housing.

Abstract: The invention relates to an extreme pressure lubricant composition, in per cent by weight, which includes from about 25 to about 37 percent polyalphaolefin, from about 1 to about 5 percent pentaerythritol ester of a fatty acid, from about 20 to about 35 percent of said methyl ester, from about 1 to about 10 percent of said copolymer of ethylene and propylene, from about 22 to about 32 percent of said bismuth salt and from about 1 to about 10 percent antimony diakyldithiocarbamate.

Abstract: A device for use in raising a wall, includes a footing member, an upright member, having a first end and a second end, a pulley, a flexible cable, the flexible cable having a first end and a second end, a cable guide member, a cable guide offset member, the cable guide offset member having a first end and a second end, and a wall engaging member. The upright member first end is fixed to the footing member and extends in a substantially vertical direction from said footing member. The footing sits on a floor or other generally horizontal surface. The cable guide member is secured to the cable guide offset member first end, and the cable guide offset member second end is fixed to said upright member second end. The flexible cable has its first end secured to the pulley, and its second end secured to the wall engaging member, and is supported between its two ends by the cable guide member.

Abstract: A method of securing an implant into a bone using a targeting device having at least two magnetic field communication units are disclosed. The device consists of at least a receiver and transmitter for multi-axis pulsed direct current magnetic signals in each of three orthogonal planes. One of the communication units carried in a fixed position by a drill guide and a second of the communication units is in a fixed, offset position relative to an implant connector. The position and orientation of the drill guide relative to the implant connector is determined by the transmission of the pulsed direct current magnetic signal from the transmitting unit and receiving that signal at the receiver. The signals provide the position and location of the communication units in relation to one another. The signals are converted into position and orientation data format readable by a programmed computer.

Abstract: An bi-directional, interactive multi-station medical specimen analysis system for simultaneously analyzing a medical specimen at remote locations and accessing, for evaluation, the results of each of the analyses at a central laboratory is disclosed. The system is networked to a server for storing databases. A central laboratory, interacts with remote computers, through the server to review, evaluate and accept or reject specimen analyses. The server communicates with the plurality of dedicated computers, laboratory computer and a centralized computer through a LAN or WAN. Analytical instruments which are not equipped to communicate with a computer are connected through computer interface software which interprets the instrument language into the computer program language and the computer program language into the instrument language. The bi-directional, interactive system requests analytical tests, transmit the test results to the server databases and receives and displays data from the server databases.

Abstract: An improved flexible shaft used in the reaming of the medullary space in bones is described. The shaft is comprised of a solid element with a longitudinal bore the entire length and an appropriately formed slot which extends spirally around the shaft either continuously or segmentally. Attached to the shaft's opposite ends respectively, are a cutting head and a means of connecting the shaft to a driving mechanism.

Abstract: A system for controlling one or more borehole pumps to enable pumping-on-demand is described. The system uses a computerized controller which, in combination with sensors, monitors and controls the activity of the pump, thereby controlling fluid in the borehole. The system is continually in one of three modes, the monitoring mode, the pump mode, and the recovery mode. Within each cycle of modes, the system performs multiple checks on the apparatus involved. The data obtained during the check is stored in appropriate databases as well as checked against predetermined norms. In the event of a malfunction within the apparatus, or other supervised and/or monitored functions, the system can activate a notification system, such as a centralized monitoring facility. A pump is disclosed with a fluid sensor to detect the presence of fluid and transmit this presence to the computerized monitoring system. A slug sensor notifies the computer of the beginning and end of a predetermined quantity of fluid.

Abstract: A saddle is constructed around a tree designed using data points based on X, Y, and Z axes which correspond to the conformation of a horse's back. Two pair of torsion springs, attached with specifically placed rivets, sandwich the tree providing structural support. To cushion and maintain the equidistant configuration of the tree, panels are carefully constructed using a six pound foam. The thickness of the panel lessens as it reaches the edge of the tree, preventing bunching when the leather is attached. A withers wedge is secured to the panel adjacent the withers, serving as a sub-support and buffering the contact between the tree and the horse's withers. The cantle wedge is set into the panel to control the slant and angle of the saddle. The stirrup bar is an elongated V-shaped which places the area of greatest pressure directly under the securing rivets.

Abstract: The venting, precompression pump sprayer, includes a pump cylinder and a pump piston mounted for reciprocation within the cylinder. The piston applies a compression force to the fluid within a variable volume pump chamber. The piston has a hollow stem which serves as a discharge passage. A discharge valve seat is provided at the outlet end of the hollow stem of the piston. A discharge valve member is mounted for reciprocation within the hollow stem of the piston. The discharge valve member has a surface which is in sealing engagement with the valve seat when the pump sprayer is in the discharge closed position. Pressure is applied by the user to the spray cap member in order to reciprocate the piston and the valve member against the bias of a return spring. The discharge valve member has an elongated rod like region which extends downwardly to a valve inlet. An annular ring seal is mounted for liquid tight, sliding engagement on the discharge valve member's elongated rod like region.

Abstract: The invention discloses a novel sun visor, and more particularly, to the combination of a sun visor and bandanna, and to the attachment mechanism, for releasably securing the headband to the visor. A sun visor includes a band of flexible, moisture absorbent material, and a sun visor brim member. The brim member is a planar self-supporting material, secured to the band by flaps. The brim is adapted to lie symmetrically curved when affixed to the head of a person by the band. The inner curved edge of the brim is positioned to lie against the forehead of the user, when affixed to the head of a person by the band. Two or three flaps are provided each of which extending inward from the curved inner edge. Each flap is provided with pairs of fasteners, preferably of the hook and loop type, that the flaps can be folded over and secured in the folded position by the fasteners, to form an elongated loop. The brim is preferably a closed cell, substantially moisture impermeable polymeric foam.

Abstract: An extreme pressure lubricant additive system, is provided for use in lubricating metal wear surfaces, such as the transmission or engine of an automobile. The additive system is added to the oil reservoir of the transmission, engine or the like. The additive system includes in combination, a naphthenic base oil, a chlorinated methyl ester, a methyl ester anti-wear additive, and an acid scavenger. The extreme pressure lubricant additive system is present in a minor quantity and said lubricating oil is present in a major quantity, on a weight percent basis. The naphthenic base oil is from about 15 to 30 percent of said additive system, and preferably from about 18 to 25 percent of the additive system. The methyl ester anti-wear additive is from about 2 to 7 percent of the additive system, and preferably 4 to 6 percent of said system. The chlorinated methyl ester is present in the range from about 50 to 90 percent, and preferably in the range from about 60 to 80 percent.

Abstract: Pockets for use on a crutch consisting of a front panel and a back panel secured to one another along three sides, leaving an open end. Alternatively, the pocket has at least one side panel positioned between the front and back panels. The back panel preferably has a length greater than the length of the front panel and the width of the side panel to form a closure flap. The pocket securing portion is affixed to one end of the back panel proximate the open end and secured to the crutch at the horizontal top rail by eye hooks. A retaining strap proximate the closed end secures the pocket to the side rails. In another embodiment for use on the lower portion of the crutch, the back panel has a length at least twice the length of the front panel and is folded upon itself to form a U-shape. A channel is secured to the crook of the U-shape to form a channel to receive a retaining bolt secured to the side rails. A secondary layer is affixed to a second leg of said U-shape to form a second pocket.

Abstract: A load-dispersing device for use with a ladder has a pail of flexible members having first and second configurations and a memory to return the members from the second to the first configuration. An interior cavity within each member is exposed, when each member is in the second configuration, through a longitudinal slit. Separating the longitudinal slit exposes the interior cavity placing the member in the second configuration for mounting on the respective ladder side rail and releasing the longitudinal slit returns the member to the first configuration and secures the member around the respective side rail. The member having contact and locking areas which can be manufactured either from separate material or integral with one another. The contact area can have an undulating surface and can have a spring embedded within the contact area to return the member to the first configuration. The contact area can alternatively be adhered directly to the load-bearing surface of the ladder.

Abstract: A device is disclosed for securing items, such as boat batteries and gas tanks, against theft and breakage. The locking unit is formed of dual base units, hingeably connected to vertical walls. The base units are connected to a support structure through use of screws or bolts. The top plates are connected to the vertical walls through use of hinges. The top plates can be provided with an adjustable locking member to secure various sized containers. L-shaped plates can be used to prevent any end to end horizontal movement of the container while the locking unit prevents side to side and vertical movement. The base unit can be one or two pieces, depending upon required adjustability. Parallel, opposing, side units, are affixed to the base unit at approximately right angles and a pair of top locking plates are then secured at right angles to the opposite end of the side units. The object is secured within the locking device through use of a lock which secures the top locking plates to one another.

Abstract: We have fabricated miniature planar IR waveguides of thickness 30-50 .mu.m, consisting of 12-mm long, 2-mm wide strips of Ge supported on ZnS substrates. Evidence for efficient propagation of broadband IR light through these waveguides is provided by the presence of characteristic high and low frequency optical cut-offs of Ge; by the observation of an oscillatory interference pattern in the transmittance spectrum, which exhibits a dependence on waveguide thickness and propagation angle closely matching waveguide theory; and by the detection of strong evanescent-wave absorption from small (2 mm.sup.2) droplets of liquid, e.g. water, on the waveguide surface. As also predicted by theory, the surface sensitivity (detected light absorbance per unit area of sample-waveguide contact) was shown to increase as a function of incidence or bevel angle.