Abstract: An improved system for monitoring the temperature of a rotating device comprising: a sensing means; an antenna means; a receiver means; an amplification means; a first splitting means; a phase lock loop circuit; a second splitting means; an amplitude modulation discriminator means; a comparator; a control line signal; a counter logic circuit; a time based signal; a synchronized signal; and a microprocessor.

Abstract: A pull chain switch grommet for aesthetically covering the hole in the switch housing of a ceiling fan, comprising a switch housing having a wall with a hole therethrough for a pull chain, a coupler, a means for securing said coupler to the pull chain switch, a means for securing the grommet to the coupler through the hole within the wall of the switch housing, and the coupler and the grommet each including a longitudinal hole therethrough through which is positioned the pull chain of the switch.

Abstract: A multi-plane bone distraction system including a saw guide, a drill guide, a rigid plate and a distraction assembly for use as a distraction device in cutting and lengthening the bone or as a compression device in cutting and shortening the bone in conjunction with repositioning the other end of the bone in three planes relative to the one end of the bone.

Abstract: A high intensity lamp is provided based on an open discharge between a cathode grid anode and a collector. A phosphor layer on the collector is excited by an electron beam to produce light or ultraviolet radiation to produce light.

Abstract: An adjustable tension clamp for securing a secondary lawn care device to a primary lawn care device comprising: a substantially u-shaped body; a first bracket; a first pair of parallel disposed rollers; a first journalled means for connecting said first pair of rollers in said first bracket; and a first securing means for connecting said first bracket to one side of said body whereby said secondary lawn care device may be frictionally held between said first pair of rollers and said side of said body.

Abstract: A canopy screw cover for aesthetically covering the mounting screw heads of a ceiling fan canopy, comprising a mounting screw having a head, an annular ring, and a recess formed in the annular ring in which is positioned the head of the mounting screw when the annular ring is positioned about the canopy.

Abstract: Enclosure and windshield retaining brackets for retaining a golf cart enclosure panel and a golf cart windshield in a position adjacent a golf cart windshield frame. The bracket has two preferred embodiments, the first embodiment having a U-shaped frame member for engagement with a windshield frame, and a longitudinal rail member for engagement with a bead portion of an enclosure panel, permitting linear movement of the bead portion along the length of the rail member and the second preferred embodiment having a U-shaped frame member, a longitudinal rail member, and a U-shaped windshield pane member for engagement with the windshield pane edge.

Abstract: A collapsible display device for displaying cards comprising of a base, a vertical support member extending vertically from the base, an array of shelves spaced longitudinally along the length of the vertical support member, and a securing means for retaining the cards on the display device. The array of shelves are supported by the vertical support member while the display device is in the expanded position. In the preferred embodiment, the securing means is a plurality of apertures disposed in the array of shelves for receiving a portion of the cards and so that the remainder of the card is visually available. In an alternative embodiment, a serpentine shelf orbits about the vertical support member from top to bottom. The display device of the present invention collapses so that the shelves are in a compact and flat condition.

Abstract: In a refrigeration system, a multiple compressor system for maintaining the heat output constant while the outside ambient temperature continues to decrease. The present invention comprises of a primary compressor and at least one secondary compressor. The entire refrigeration system is sized for the primary compressor operating while in the cooling mode. In the heating mode, the primary compressor operates by itself until the outside ambient temperature falls to a temperature within a particular range. Once the predetermined temperature set point is met, a secondary compressor begins operating in conjunction with the primary compressor such that the mass flow of refrigerant through the system in the heating mode of operation is no greater than that of the primary compressor operating alone in the cooling mode. While the outside temperature continues to decrease, additional secondary compressors may be included to maintain a constant heat output.

Abstract: A canopy hole cover assembly for a ceiling fan comprising in combination a ceiling fan hangar bracket, a down rod for suspending the ceiling fan from the ceiling fan hangar bracket, a canopy having a mounting hole, an annular plate, and means for mounting said annular plate relative to the mounting hole to cover the mounting hole.

Abstract: A circuitry arrangement for a resonant circuit that may be completely monolithically integrated and electrically tuned has a differential amplifier stage with two transistors T.sub.1,T.sub.1 ' fed by a constant current source I.sub.0 that are differentially loaded at their collectors by a voltage-dependent capacity and inductively loaded in relation to the circuit ground by a pair of emitter followers T.sub.2,T.sub.2 ' with electrically adjustable impedance that act upon the base. To implement the electrically adjustable impedances, transistors with associated resistances are provided (for example a pair of emitter followers T.sub.3,T.sub.3 ' with base pre-resistances R.sub.1,R.sub.1 ') which may be adjusted by control currents (for example I.sub.1 I.sub.1 ') . The voltage-dependant capacity is implemented by transistors T.sub.4,T.sub.4 ' whose short-circuited emitters and collectors are connected so that the circuit node thus obtained is applied to the circuit ground through a voltage source U.sub.1.

Abstract: An intracoronal bristle brush for preparing a tooth cavum comprising a plurality of bristles and a dental bit having a first portion being a shank adapted to be received by a dentist's handpiece and a second portion for receiving the plurality of bristles. The plurality of bristles emanate outwardly in a uniform manner from an axial hole within the second portion. The diameter of the intracoronal bristle brush dental bit ranges from substantially uniform to a tapered diameter towards the second portion such that the bristles of the brush may penetrate into an interior surface of a tooth cavum.

Abstract: An electric current sensor employing a Hall effect generator to be used in measuring electrical currents flowing in a current carrying conductor including a printed circuit board, an amplifier, a control current source, a toroid core having a gap, a Hall effect generator, and first and second traces configured on the printed circuit board so as to be non-inductive when exposed to the impinging magnetic field concentrated by the toroid core across the gap and across the Hall effect generator. The non-inductive configuration of the first and second traces is composed of a plated through hole electrically coupling the first and second traces to form a loop having a loop area equal to zero that is perpendicular to the directional flow of the impinging magnetic field thereby preventing the generation of unwanted induced voltages in the current sensor.

Abstract: A transmission for propeller driven vehicles comprising semi-floating input and output shafts rotatably supported in a main gear case. The shafts are supported on bearings which are free from any locking engagement with the shafts. The bearings are secured in bearing bores positioned in both the bell housing and the main gear case. A vent tube is positioned in the bell housing which is aligned with the output shaft such that the output shaft rotates about the vent tube. Also, an opening is created between the junction of the bell housing and the engine of the vehicle to be propelled. This opening acts as an air induction duct for receiving air for cooling the transmission.

Abstract: The invention pertains to a homodyne receiver, in particular for angle-modulated carrier signals in which the converted signal (ZF) has a d.c. voltage portion, and a process for correcting the converted receiving signal. Essentially three classes of errors occur with homodyne receivers: d.c. offset, amplitude difference and phase errors between the in-phase (I) and quadrature (Q) branches. Standard adjustments of the local oscillator with phase-locked loop (PLL) do not work in the case of weak signals. To use cost-effective, rapid analog/digital converters, particularly the d.c. offset has to be separated out. In so far as this has been done previously and the I and Q signal were corrected also, these corrections could be accomplished only with expensive components in the RF class. To avoid this the invention provides an arithmetic unit that is designed for converting into a circle the ellipse set by the distorted I and Q signals.

Abstract: A process for forming a multilevel electronic interconnect structure, the electronic interconnect structure having level conductive paths parallel to a substrate and interlevel electrical interconnections perpendicular to the substrate, the process comprising providing a main aluminum layer over the substrate surface, defining level conductive paths by forming a blocking mask on the main aluminum layer, the blocking mask leaving exposed areas corresponding to the level conductive paths, carrying out a barrier anodization process on the main aluminum layer to form a surface barrier oxide over the level conductive paths, removing the blocking mask, providing an upper aluminum layer over the main aluminum layer, defining interlevel interconnections by forming a blocking mask on the upper aluminum layer, the blocking mask covering areas corresponding to the interlevel interconnections, and subjecting the main and upper aluminum layers to porous anodization.