Abstract: A novel low profile vehicle, and a novel method for converting normal profile vehicles into the same, is disclosed. The low profile vehicle disclosed herein is adapted for use in a variety of applications, such as mining operations and aircraft maintenance applications. Selected components and assemblies found in a normal profile vehicle are removed from the normal profile vehicle's original frame and retained and/or modified for use in a completed low profile vehicle in accordance with the present invention. The operator's cab of the original normal profile vehicle is modified for use in the completed low profile vehicle. A frame extension is added to the forward end of the frame of the normal profile vehicle to form a split level frame in a position forward of the front wheels. The cab is shortened and otherwise modified and attached to the frame extension.

Abstract: A neutral buoyancy device, (NBD), includes a lift volume container, load suspension straps, control mechanism, handle, self-closing intake and exhaust valves and valve actuators. A high pressure air source is provided by attaching a pressure cylinder to the NBD or from the surface. The handle is attached to the control mechanism, which is positioned between the lift volume container and load. The control mechanism senses any net difference in lift and load forces and causes the intake valve to open automatically when the load increases, (or as the air volume and lift decrease during descent), and the exhaust valve to open automatically when the load decreases, (or as the air volume and lift increase during ascent). Both valves are self-closing. The user grasps the handle and is able to load or unload the NBD, or transport the load up, down or sideways underwater while neutral buoyancy is automatically maintained.

Abstract: A multilevel distributed computer system for distributed processing preferably includes a plurality of personal computers. A task inputted to the system is divided into a plurality of portions. As many of the portions as possible are distributed for processing on the lowest level of the system. Those portions unprocessed on the lowest level are distributed for processing on the next lowest level. Remaining unprocessed portions of the task are distributed to available computers on successively higher levels of the system until all of the task have been distributed for processing.

Abstract: Bipartite injector device formed of an outer shell having a front closed end with an external spout and an internal seat communicating by a bore, and a rear open end to receive the stoppered end of a medicament vial, and an inner sleeve having a front end for cantilever connection to the shell closed end, and a rear free end with a socket connectable to the vial stopper, plus a hollow needle having a front collar flange mountable via the sleeve to communicate with the bore at the seat and to dispose its rear pointed end in the socket to penetrate the stopper to connect the vial with the bore and spout. A circular rim on the sleeve exterior is compressed through a circular ring to reach a circular groove on the shell interior for snap fit cantilever locking therewith to provide a fluid tight coaxial and concentric arrangement of parts for flow between the vial and spout.

Abstract: An optical amplifier comprising a substrate of a semiconductor material having a pair of opposed surfaces and a body of semiconductor material on one of the surfaces. The body includes a pair of clad layers of opposite conductivity types having an intermediate quantum wall region therebetween. The clad layers are of a semiconductor material which form a heterojunction with the material of the quantum well region. The clad layers and quantum well region forms a waveguide which extends along the body. A gain section is in the body along the waveguide. The gain section includes a capping layer over the outermost clad layer, a contact on the capping layer and a contact on the other surface of the substrate to allow a voltage to be applied across the gain section. The gain section is adapted to generate light in the active region when a voltage is applied thereacross. A light input section having a grating extending across the body is at one end of the gain section.

Abstract: A portable derrick assembly adapted for mounting on a pickup truck or a trailer, includes a base frame, a derrick tower, a tower erection subassembly, and an elongated boom pivotally mounted on the tower. A traveling sheave and cable subassembly interconnects a tail end of the boom with the tower for pivoting the boom about a pitch axis. A hoist cable is raised and lowered by a hoist traveling sheave subassembly mounted on the boom.

Abstract: A frequency divider receives a first frequency signal and at least one clock signal of a sub-multiple of the first frequency. The first frequency signal charges a storage terminal once each first frequency cycle and the sub-multiple frequency signal discharges the storage temrinal once each sub-multiple frequency cycle. The discharged storage terminal sets the frequency divider output which is reset by the first frequency signal when the storage terminal is discharged. The sub-multiple frequency clock signal is employed to control the storage terminal instead of a feedback path from the output to increase the operating frequency of the divider.

Abstract: A protection structure comprises a semiconductor substrate of a first conductivity type with a region of second conductivity type in the substrate at the surface thereof. A region of second conductivity type has disposed therein first and second regions of the second conductivity type, a third region of the first conductivity type adjacent the surface of the substrate, and a fourth region of the second conductivity type adjacent the substrate surface adjacent the third region. A shallow field region extends a distance into the region of second conductivity type between the first and second regions. A first electrical contact overlies the surface of the first region and a second electrical contact overlies the third and fourth regions.

Abstract: A self-leveling foldable saw horse including a trestle formed as a downwardly opening box, two pairs of legs, each of which has three working surfaces for leveling the pairs of legs, stably supporting the weight on the trestle and enabling rotation of the legs from a closed position to an opened position and two rods for supporting the legs. The first operating surface on each leg of a pair of legs is in contact with the first operating surface of the other leg of its pair and the second surfaces of each leg of pair are in contact with the underside of the top surface of the trestle when the saw horse is in the open position. Exerting pressure on the top surface of the trestle causes sliding adjustment of the first operating surfaces of each pair to level the trestle and stably support the saw horse on uneven surfaces. Two saw horses can be attached together in a compact, efficient manner with handles to transport the pair of saw horses for use on uneven ground surfaces.

Abstract: A pressure garment has one or more bladders defined by flexible micro-porous material consisting of at least two layers, one layer being hydrophilic and facing inwardly towards the wearer's body, and the other layer being hydrophobic and facing outwardly away from the wearer's body.

Abstract: The present invention relates to an optoelectronic integrated circuit having a substantially planar surface and which includes at least one laser diode and at least one field effect transistor. The integrated circuit comprises a substrate of semi-insulating GaAs having on a surface thereof in succession a first clad layer, a first confinement layer, a quantum well active layer, a second confinement layer, a second clad layer and an FET active layer. The FET active layer is of a material having good field effect transistor characteristics, such as N type GaAs or N type A1GaAs over a layer of undoped GaAs. The quantum well active layer is formed of alternating layers of undoped GaAs and a material which is capable of generating light of a wavelength longer than can be absorbed by the FET active layer, such as undoped InGaAs. The laser diode includes spaced contact regions of opposite conductivity type extending through the layers to the quantum well active layer.

Abstract: A system for processing steel strips in a hot strip mill includes an apparatus and method for removing the oxide layer in the finishing mill process such that the final thickness of the oxide layer is much less than previously possible. In order to reduce the thickness of the oxide layer, the invention provides for the removal of oxide scales from the surface of the steel strips at a distance in front of the working rolls of the finishing mill that minimizes the time the strip is exposed to ambient conditions after it is descaled and before it is received between the pair of working rolls. By minimizing this exposure time, the thickness of the oxide layers in the finished strips is substantially reduced.

Abstract: A circuit that compensates for threshold voltage variations in a large array of deposited thin film MOS transistors includes a threshold voltage compensation transistor for a subset of the deposited analog thin film transistors having a prescribed source to gate threshold voltage. The source electrode of the threshold voltage compensation transistor receives a voltage corresponding to the maximum threshold voltage in the large array. The gate and drain electrodes of the threshold voltage compensation transistor are connected together and to one terminal of a capacitor. The other terminal of the capacitor is connected to a second voltage and the capacitor is momentarily discharged to set the threshold voltage compensation transistor gate and drain electrodes to the second voltage. The gate and drain electrodes of the threshold voltage compensation transistor are connected to the gate electrodes of the subset of analog thin film transistors.

Abstract: An apparatus is provided that is mountable upon preferably a skidsteer tractor, through a forklift truck or similar wheeled vehicle could be employed. The apparatus can be lowered into a trench on one side of a street or sidewalk and used to bore axially beneath the street or sidewalk to a trench on the other side of the street or sidewalk. Operation of the apparatus, which uses conventional commercial augers is controlled from the hydraulic couplings situated in the skidsteer tractor.The apparatus includes a main housing which includes a means for receiving the accessory shoe of a prime mover for physical attachment thereto; and a motor housing with a motor, hydraulic coupler and bearing disposed therein, which motor housing is pivotally mounted to the main body.

Abstract: An air/gaseous fuel proportioning device includes an air inlet, a fuel inlet, an outlet to feed an air fuel blend to an engine, with the air inlet having an air butterfly valve to throttle the air flow, having a disc-shaped fuel valve resting in a conical bore and having a linkage attached to the air butterfly valve for causing the fuel valve to follow the air butterfly valve in a tilting motion to provide an open area between the disc and cone that relates proportionally to the air flow past the air butterfly valve.

Abstract: A CMOS device is provided with a field shield region below one of the P and N channel MOS transistors, whereby the field shield region is formed to have the opposite conductivity of both the one MOS transistor it underlies, and of the substrate, thereby permitting the field shield region to be biased to a potential for turning off any anomalous back channel leakage current in the one MOS transistor, and also permitting the substrate to be biased to an opposite polarity for turning off such leakage current in the other MOS transistor.

Abstract: A new variety of rose plant of the shrub class; distinctive in its character by its fully double flowers of greyish--rose with light yellow streaks with abundant continual blooming and the unusual blend of coloring and shaping of the flower.

Abstract: A new variety of rose plant of the shrub class; distinctive in its character by its fully double flowers of yellow and pale orange/red, with abundant and continual blooming and the unusual blend of coloring and shaping of the flower.

Abstract: A new variety of rose plant of the shrub class distinctive in its character by its fully double flowers of yellowish white with abundant, continual blooming and the unusual blend of colouring and shaping of the flower.