Abstract: A bag filler consisting of a single tubular member has a peripheral portion removed from one end thereof to form a hand grip while an opposing peripheral portion at the same end then forms a scoop, has its other end inserted into the open end of a bag to be filled, and the bag at both its ends is then turned about and within the associated ends of the tubular member so that an operator may with one hand hold both the open end of the bag and the hand grip of the tubular member for guiding the bag and bag filler into engagement with material from which the bag is to be filled, while the operator's other hand holds the bag and other end of the tubular member to propel the bag and bag filler.

Abstract: A needle point cover assembly for securely covering and protecting the needle point after a syringe has been used includes a cover in the form of an elongated hollow member that is open at one end for receiving the needle therein, and at its other end is mostly enclosed by an end wall having a hole through which the needle can pass. A lid encloses the otherwise open end of the cover member. The lid has a hole through which the needle may pass so that the needle may extend through both the lid hole and the hole in the end wall. When the syringe is being used to make an injection, the needle point projects through the hole in the end wall. After an injection has been made and the syringe is ready for disposal, a manually actuable extensible frame slides the cover to where its end wall is beyond the extremity of the needle point.

Abstract: A stand which supports a golf club in a highly visible and easily retrievable position above a grassy surface. The stand has a top plate with two spaced spikes extending downward from an under side of the top plate and adapted to be driven into the grassy surface. A column extends vertically upwardly from an upper surface of the top plate and internally engages and supports the club. A cylindrical securing means is attached to the top plate which encircles the club and cooperates with the column for maintaining the club in a vertical disposed position.

Abstract: A feed forward amplifier circuit which includes a main amplifier, an error correction circuit producing a message error signal, an error amplifier for producing an amplified message error signal that is then subtracted from the amplified and distorted message signal output of the main amplifier prior to a final output circuit, a negative feedback circuit coupled to the final output circuit responsive to a test signal for compensating and minimizing drift in the operation of the error amplifier, and circuitry associated with the negative feedback circuit for detuning performance of the error correction circuit at the test frequency so as to improve the overall circuit performance across a desired operating frequency band while diminishing its performance at the test signal frequency.

Abstract: A voltage inverter provided as part of a low power amplifier system includes a charge pump capacitor, a charging inverter circuit for charging the charge pump capacitor in response to clock pulses, a FET grounding switch interposed between the charge pump capacitor and ground so that the charge pump capacitor can accumulate charge, an output storage capacitor for providing inverted voltage at the voltage inverter output, an output series switch interposed between the charge pump capacitor and the output storage capacitor for controlling charge transfer to the output storage capacitor; and a grounding switch driver circuit that includes a gate drive inverter, a gate drive pulldown coupled between the charge pump capacitor and the grounding switch so as to rapidly turn off the grounding switch at the outset of the charge transfer cycle, and a gate drive isolation switch interposed between the gate drive inverter output and the gate drive pulldown and responsive to the gate drive inverter output to prevent condu

Abstract: An electrical test kit for testing a telephone line from the terminals at the customer's end of the line includes a circuit for testing line continuity without falsely indicating to the voltage source that a telephone call has been answered, a push-button selection switch and a parallel pair of light-emitting diodes connected in reverse polarity relative to each other for determining polarity of the telephone line, and test pads in parallel with the continuity test circuit for permitting the attachment of a voltmeter so as to determine the magnitude of the internal resistance of the telephone line.

Abstract: An apparatus for supporting a heavy load above a tile roof without causing damage to tile members, comprising: an elongated base member adapted to lie upon the surface of the roof underneath a tile member; a lag bolt for securing the the base member to a rafter in the roof; a slidable carriage having a threaded hole therethrough, the carriage slidably engaging the base member; a threaded elongated shaft capable of being inserted through a hole in the tile member and into threaded engagement with the carriage so that the end of the shaft may be caused to engage the base member and thereby fixedly secure the shaft; and a means associated with the shaft for attaching a heavy load.

Abstract: An electrical connector utilizing a circuit board assembly for providing straight-through electrical interconnection of data line pairs between two jacks, and for providing breakout terminals. The layout of the electrical connector is such that common mode rejection is improved and cross-talk between data line pairs is minimized. The electrical connector has a circuit board with conductors located on both the bottom and top surfaces of the circuit board. The conductors are serially coupled to test pads to form a straight-through connection between pin openings located at opposite ends of the circuit board. The test pads are located so that the pads representing data line pairs are adjacent one another. Location of the test pads allows the conductors representing data line pairs to be located in a close parallel relationship for at least part of the way along the circuit board.

Abstract: A sharps container has a receptacle, cover and tray and provides an improved locking mechanism to resist unauthorized tampering, as well as hermetically sealed construction to prevent any leakage of fluids from the container. The rotating tray provides an escapement mechanism for hands-free disposal of sharps through biasing the offset balanced tray into an open, receiving position to receive new items and deposit them into the interior of the container, and then returning to a nearly closed position. A locking mechanism is also provided to rotate the tray into a locking position thereby permanently closing the container and displacing the locking mechanism into the container interior so that the top surface of the locking mechanism is flush with the adjacent exterior container surface.

Abstract: An auto body buffing and grinding machine has a fixed handle with a trigger mechanism, a surface with threaded opening for attachment of an adjustable handle, and an adjustable handle that is quickly and easily attached, adjusted, or detached. The adjustable handle has two angularly adjustable mechanisms working in mutually perpendicular planes, each being secured by a hand operable nut. One attachment mechanism works by insertion from the outside of the threaded opening and then the tightening of its associated nut against the surface surrounding the opening. The other attachment mechanism works by securing parallel plates with roughened surfaces together, and includes a spring normally urging the roughened surfaces of the plates apart. The plates are rotatable by more than ninety degrees.

Abstract: A shield for a hypodermic needle assembly includes a hollow plastic sleeve with an elongated main portion adapted to normally enclose the main portion of a needle, a slidable outer end portion which normally extends beyond the tip end of the needle, the elongated main portion of the hollow sleeve responding to an axial force on the outer end portion for expanding radially outwardly to retract the end portion of the sleeve and expose the needle tip end, a spaced pair of circumferential flanges formed on the elongated main portion of the sleeve, and a flexible collar encircling the sleeve and slidable over one of the flanges so as to occupy a position between the flanges and thereby prevent subsequent expansion of the main portion of the sleeve.

Abstract: Concentrated phosphorus fertilizers of the phosphorous variety are described which are absorbed quickly into plant systems and improve plant growth. When diluted with water, there is formed a substantially fully soluble fertilizer having a foilage-acceptable pH.

Abstract: A storage case for a flat circular member such as a compact disc includes a plastic box that has top and bottom walls and a front end which is open so that the flat circular member may be inserted into the box between the top and bottom walls. A spring member inside the box adjacent its rear wall has one part that is fixedly secured to the box, and a movable part that when released can directly engage the peripheral edge of the flat circular member. The movable part of the spring member is normally stored in a retracted position behind a rib that extends inwardly from the top wall of the box. The top wall has a flexible portion behind the rib which is downardly depressible for releasing the movable part of the spring member so that it will then engage the compact disc and eject it from the open front end of the box.

Abstract: A hair styling method utilizes an elongated flexible mold member having hollow end portions, two elongated rigid handle members each more than half the length of the mold member, with each of the elongated rigid handle members having an inner end portion and an outer handle end. The inner end portion of each of the elongated rigid handle members is inserted into a corresponding end portion of the mold member so that the elongated flexible mold member may then be bent into a generally U-shaped configuration and the handle ends of the elongated rigid handle members then occupy a generally parallel relationship in close proximity to each other. The outer handle ends of the elongated handle members have an interfitting relationship so that they may be placed in that interfitting relationship and thereby draw the outer end portions of the flexible mold towards each other.

Abstract: A hand held device for cutting through shrink-wrapped packaging surrounding a package such as a compact disc case, which will allow the user to more easily remove the compact disc case from the packaging. The hand held device includes a cutting blade sized to cut through shrink-wrapped packaging of a predetermined thickness, and a holder for guiding its movement.

Abstract: A low power amplifier system contains a number of amplifier stages, each having a control terminal, and a bias circuit parameter that can be measured as a voltage. A monolithic integrated circuit includes a plurality of bias control amplifiers, one for each of the amplifier stages. A positive supply voltage is fed into the integrated circuit, and in response thereto a negative supply voltage is generated, both voltages being then applied to each of the bias control amplifiers. A voltage feedback signal indicative of the bias current in each one of the respective external amplifier circuits is supplied to the corresponding one of the bias control amplifiers. Each bias control amplifier is then operable to compare the received voltage feedback signal with a reference voltage derived from the positive supply voltage and/or the negative supply voltage, for producing an error signal indicative of an error in the bias current in the respective external amplifier stage, and also for amplifying that error signal.

Abstract: A stander has a collapsible supporting base including a generally U-shaped frame with a horizontal bar that forms its middle section, and a T-shaped frame having a central extremity which is secured to the bar of the U-shaped frame, the two legs of each frame being adapted to rest upon a flat supporting surface and the two frames being foldably secured together and normally separated by about ninety degrees; and an elongated center post assembly for supporting the body of a person in essentially parallel relation, the center post assembly having a head support end and a foot support end, and having a mid-point pivotally secured to the horizontal bar; and adjustable piston means extending beneath the bar and coupling the T-shaped frame to the center post assembly so that the center post assembly may be rotated by more than ninety degrees between an essentially vertical orientation in which its foot support end is lowermost, and an inclined position in which the elevation of its foot support end is higher than

Abstract: A sharps container having a receptacle, cover and tray and providing an improved locking mechanism to resist unauthorized tampering. The locking mechanism also incorporates a means to rotate the tray into a locking position thereby closing the container. When the locking mechanism is actuated, the container is permanently closed and the locking mechanism itself is displaced into the container interior so that the top surface of the locking mechanism is flush with the adjacent exterior container surface. The present invention also provides for hands-free disposal of sharps through the use of an offset balanced tray biased into an open, receiving position. The receptacle section is designed to be stackable for more efficient packaging and shipment. The container also incorporates viewing windows to permit visual inspection of the container interior to properly determine when the container full and ready for disposal. The container is also designed to be attached to a wall through the use of mounting brackets.