Abstract: An enclosure is provided for a motor assembly having a stator, a rotor, a shaft extending from the rotor, a first end shield and a second end shield which rotatably support the shaft, and a voltage change switch. The enclosure encases the voltage change switch so that the voltage change switch is not normally accessible. The enclosure includes a housing which at least partly covers one of the endshields and a cover which covers the voltage change switch. The cover pivots with respect to the housing so that voltage change switch may be accessed and operated. The cover is held in place by a single screw to make accessibility, when needed, simple.

Abstract: A graphical display icon on the front of a data storage unit provides status information on disk drives within the unit. The icon has a shape identical to that of the unit and includes a number of bicolor LED's which each correspond to a similarly situated disk drive located in the unit. The color emitted by the LED's communicate information on the status of the corresponding disk drive within the unit.

Abstract: A circuit for maintaining a constant voltage across and constant current through an RF cavity includes a RF cavity comprising a common-gate or common-base transistor associated with a current control circuit maintains a constant current flowing through the RF cavity. The current control circuit has a current control BJT associated with the RF cavity and a resistor between the emitter of the current control BJT and the negative source voltage of the RF cavity. The current control BJT and resistor operate as a current source or sink as necessary to maintain a constant current flow through said RF cavity. A constant voltage regulation portion of the circuit maintains a constant voltage across the RF cavity and includes a zener reference diode and a voltage regulation BJT.

Abstract: Liquid dispensing apparatus includes a tank for storing liquid to be dispensed, a fill line communicating with an interior of the tank and adapted to be coupled to a source of the liquid, a heating element for heating the liquid, a heating control device for controlling the heating element to heat the liquid to a predetermined temperature, a dispensing device for dispensing liquid from the tank under pressure and a dispensing control device for selectively controlling the dispensing of the liquid by the dispensing device. The fill line is adapted to be connected to existing plumbing, such as a toilet water supply line behind a wall adjacent the toilet. The tank is adapted to be housed in a recessed wall cabinet adjacent the toilet so that the entire apparatus is hidden from view when not in use. The tank includes a sump portion defining a lowermost portion of the tank, to facilitate complete evacuation of liquid from the tank.

Abstract: The present invention is directed towards an auxiliary hand table which is removably mounted to a main surgical table. The hand table is mounted, via first and second mounting devices, to the rails provided on each side of the main surgical table. The first mounting device includes upper and lower jaws, the upper jaw being provided with a fastener to positively attach the device to the rail. The second mounting device includes a pair of interconnected hook-shaped members which are hooked over the opposite rail. The second mounting device further includes a series of mounting studs which facilitate attachment of a hand table support structure, thereby supporting the hand table. The vertical position of the hand table relative to the main table is adjusted by altering the mounting position of the support structure to the second mounting device. A tensioning bar interconnects the mounting devices, one end of the bar being received by an elongated bore provided by the first mounting device.

Abstract: A pole ladder folding deer stand is formed by upper and lower tubular sections hingedly joined in aligned relation and provided with vertically staggered steps for ascending and descending the pole ladder. A seat and backrest assembly hingedly connected with the upper limit of the upper pole section projects horizontally toward a tree and includes a yoke and strap assembly for joining the seat assembly to a tree. A foot platform is horizontally supported above the uppermost step forwardly of the position of the seat assembly. A ladder stabilizing engaging yoke projects laterally from the respective sides of the ladder lower section at its depending end. A bicycle fork journals a wheel attachable to one of the ladder sections to permit wheelbarrow-like movement of the folded ladder tree stand for transporting equipment or game.

Abstract: A portable supply box particularly for use in ice fishing is disclosed. The holding unit includes a body mounted on a pair of parallel ski-type runners. The unit includes an interior that is divided into three sections. The first section is a lantern section, the second is an intermediate section, and the third is a rear section. A seat is provided over the intermediate section. Both the intermediate and rear sections include hinged covers. One or both of these sections may be used for storing goods. A tray is provided for holding fishing articles such as hooks. The user straddles the body so that his hands are disposed over the lantern section. There is an opening provided over the lantern section so that rising heat may be used to warm the user's hands. A window is provided on the front end of the lantern section so that light may pass therethrough for illuminating the local environment for fishing during the evening or at night.

Abstract: Briefly, the invention provides a method of enhancing pixel data from a raster image to improve the appearance of the rendered image by modifying morphological artifacts which normally occur in raster image systems. The method commences by applying a window to a portion of the raster pixel data from the raster images to define a block of raster pixel data having a predetermined area. The pattern of the block of raster data within the window is then compared with a plurality of predetermined patterns representing morphological artifacts. A determination is made from the comparison whether a substantial match exists between the block of raster data within the window and one or more of the plurality of predetermined patterns. In the event of a match the block of raster data is modified to provide an enhanced block of raster pixel data free of said morphological artifacts.

Abstract: A plastic monocoque body useful with small vehicles, such as lawn and garden tractors. A lower fiberglass reinforced plastic frame member is bonded to two upper body members to form a monocoque body. The assembly incorporates attaching, pivot and support structures for the engine, transaxle and drive wheels, steerable front wheels, steering mechanism, clutch and brake pedals and control linkages, shift and throttle controls and linkages, adjustable mower deck, adjustable seat and battery. Through utilizing the net shape manufacturing process, no metal skeleton is required, thereby reducing the expense and complexity of manufacture, assembly and paint operations.

Abstract: A tower unit for a personal computer wherein the tower unit is a generally rectangular box having a generally rectangular interior chassis. The interior chassis includes a first set of interiorly extending mounting flanges and tabs which are positioned and aligned on opposing chassis walls to mount one or more drives at an upwardly facing angle in order to allow the user visual and manual access to the drives for ease of operation. A similar combination of interiorly directed tabs and flanges are formed in the opposing side walls of the frame near the bottom of the tower unit chassis in order to mount a plurality of hard disk drives in horizontal positions. The frame includes a front frame panel which combines with the front bezel to provide a gripping area which cooperates with another gripping area formed in the rear bezel to allow the tower unit to be easily moved about.

Abstract: A proportioning pump for liquid additive metering having a housing with a diaphragm piston therein and inlet and outlet primary fluid lines to the housing and inlet and outlet valves in the housing for moving the piston up and down. A pair of additive pistons for pumping an additive liquid into the primary fluid with the additive pistons being moved by the diaphragm piston. An overcenter spring loaded connection connects the diaphragm piston to the inlet and outlet valves and a fail safe mechanism opens both the inlet and outlet valves in the event the spring in the overcenter connection fails. One of the additive pistons has an O-ring therein which acts as a seal and a check valve.

Abstract: Push-pull flux quantum superconducting digital logic circuits are provided with a circuit branch having a pair of Josephson junctions electrically connected in series with each other. This circuit branch is connected between positive and negative bias voltage supplies which supply a bias current to the Josephson junctions. A dual polarity input voltage signal is applied to a node in the circuit branch and an output signal is extracted from a second node in the circuit branch. Various logic operations can be performed on the input signal by adding additional components and changing the points at which voltage is input to and output from the Josephson junction circuit branch.

Abstract: Push-pull flux quantum gate array cells synchronously process a pair of polarized data signals. These polarized data signals can be derived from dual polarity data signals by separating the input signals into positive polarity data signals and negative polarity data signals. At least one logic or arithmetic operation is performed on each of the positive and negative polarity signals to produce modified positive and negative polarity signals respectively. These modified positive polarity and negative polarity signals can also be combined to produce a modified dual polarity output data signal. Numerous logic operations can be achieved in gate array cells which perform this signal processing method. By using push-pull flux quantum circuits, the need for auxiliary timing signals or interferometers is minimized.