Abstract: Chain link fencing having a plurality of elongate picket members comprising elongate slats that lie in diagonal valleys of the chain link fencing. Elongate, U-shaped channels lie along the respective sides of each elongate slat. The channels fit over and cover a row or ridge of knuckles formed along the side of each of the respective valleys of the chain link fencing. The pickets cover essentially the entire side of the chain link fence and leave no spaces or openings between pickets. The system thus provides complete privacy. Engagement members are associated with the channels to secure the channel members and thus the pickets to respective rows or ridges of knuckles on the chain link fencing.

Abstract: A cover is disclosed that can be easily and quickly positioned over a single key on a keyboard. The cover has pressure sensitive adhesive on its feet for securely affixing the cover to the housing of the keyboard such that the cover is maintained in place over the key on the keyboard which is to be covered. A pair of sidewalls extend upwardly from the feet of the cover. The sidewalls are spaced apart by a distance sufficient to span a single key on the keyboard. A top wall extends between the upper ends of the sidewalls. The top wall is provided with a central opening having a size such that a tip of a pencil or other similar device can be pushed through the opening to engage the key below the top cover.

Abstract: A hand held tool for inserting a forward end of a cylindrical insert member into an open end of a relatively thick-walled plastic tube. The tool comprises a pistol grip having a hand engaged member that is squeezed by one's hand. A push shaft is positioned at the top end of the pistol grip, with the push shaft having a forward end that extends away from the pistol grip. The hand engaged member cooperates with a mechanism for moving the push shaft forward in longitudinal movement along the longitudinal axis of the push shaft when the hand engaged member is squeezed. A housing extends from the pistol grip around and along the push shaft, with a distal end of the housing extending beyond the forward end of the push shaft. An access opening is provided in the housing through which the forward end of the push shaft is accessible for positioning the cylindrical insert member in axial alignment with the longitudinal axis of the push shaft at the forward end of the push shaft.

Abstract: Apparatus for studying the interaction of first and second molecules in a test solution containing fluorescently labeled molecules in addition to the first and second molecules, with the first molecules and the fluorescently labeled molecules being capable of binding with the second molecules. The apparatus comprises a flow channel having opposite, spaced apart walls, with at least one of the walls or a portion thereof being translucent or transparent. A porous matrix is retained in a fixed position between the walls of the flow channel and in direct contact with a translucent or transparent portion of the walls of the flow channel. A test solution flows through the flow channel and around the porous matrix so as to be in contact with the porous matrix.

Abstract: Chemical pumps are disclosed in which all parts wetted by the fluid being pumped are made of fluoroplastic material, with the pumps having check valves that include floating ball members and O-rings positioned adjacent to the floating ball members. The retainer area in which the O-ring is received has a diameter that is at least about 0.01 inch larger that the diameter of the O-ring so as to allow the O-ring to move slightly. The intake and discharge ports of the pumps comprise a bore extending into the body of the pump, with a threaded counterbore formed concentric with the bore to form a flat, annular surface between the bore and the counterbore at the inner end of the counterbore. A threaded fitting is received in the counterbore, and a seal is formed by compressing an O-ring against the annular surface at the inner end of the counterbore.

Abstract: A warning device is disclosed for an evaporative cooler or swamp cooler. The alarm comprises a pair of closely spaced electrodes mounted at a desired position above the floor of a water reservoir in the evaporative cooler. During normal operation of the evaporative cooler, the electrodes are not submerged in the pater. Upon malfunction of the float valve in the water supply to the reservoir, uncontrolled amounts of water are added to the reservoir, and the water level rises. When the water level attains a specified depth, the electrodes become submerged in the water. An electrical circuit is associated with the electrodes, and when the electrodes become submerged in the water, the electrical circuit is closed. The closing of the circuit activates an audible alarm which can be heard by inhabitants in the building being served by the evaporative cooler. Preventive maintenance can then be undertaken before extensive damage is done by water overflowing from the water reservoir of the evaporative cooler.

Abstract: A method for managing allocation of data sets among A plurality of storage devices of a computing apparatus such that the data set are allocated to a storage device whose uncommitted storage volume and access capability most nearly meet the requirement of the particular data set and the data sets are further allocated in such a way that access activity to the data sets will be distributed substantially uniformly across all the storage devices. The method comprises the steps of:(1) monitoring and recording data set access activity as a function of time:(2) calculating the data storage factor of each data set;(3) calculating a machine storage factor of each storage device;(4) calculating the residual storage factor of each storage device;(5) allocating the data set to a storage device that has sufficient available space and whose residual storage factor most nearly matches and exceeds the data storage factor of the data set being allocated.

Abstract: A method is disclosed for coating dowels with a substantially uniform coat of water soluble glue. A plurality of dowels and a preselected amount of liquid, water soluble glue are placed in a closed container. The container is rapidly shaken so that the container moves in a combination oscillating motion comprising an up and down movement and a back and forth movement that is substantially perpendicular to the up and down movement. Dowels coated with the liquid, water soluble glue are removed from the container and deposited on a drying surface. The dowels are dried by applying heat and a stream of air to the dowels. When the exposed surface of the coat of water soluble glue on the dowels has become essentially tack free but before the coat has dried completely, the dowels are rotated about their longitudinal axes so as to separate any dowels that are stuck together and to free any dowels stuck to the drying surface.

Abstract: An improvement in a tissue sampling apparatus of the type comprising (a) an elongate housing, (b) a knob at the first end of the housing, (c) first and second pistons extending from the second end of the housing, (d) connections on the extending ends of the pistons for connecting a biopsy needle, (e) first and second springs in the housing against which the first and second pistons, respectively, are cocked so that the springs apply a biasing force against the respective pistons, (f) a trigger for releasing the first and second pistons to move in successive movements wherein the first piston moves first to its fully extended position under the biasing force of the first spring while the second piston remains in its cocked position, and after the first piston has moved to its fully extended position, the second piston moves to its fully extended position under the biasing force of the second spring.

Abstract: A system is provided for (1) metering an amount of at least one concentrated liquid chemical solution, (2) metering an amount of water, (3) feeding the metered amounts of concentrated chemical solution and water to a static, inline mixing member and (4) delivering a properly diluted working solution from the mixing member directly to a processing machine. The concentrated liquid chemical solutions are stored in respective storage containers, and metering devices associated with the respective storage containers meter controlled amounts of each concentrated chemical solution for delivery to an inline static mixing member. A water metering device delivers a metered amount of water to the inline mixing member, and mixed, diluted working solution is delivered directly to the inline mixing system is delivered directly to the processing machine.

Abstract: An exercise device that simulates downhill skiing as well as thoroughly exercises one's body and cardiovascular system comprises a base support member that rests on the floor or ground. An elongate support member is pivotally attached to the base support member for pivotal, swaying movement about a longitudinal axis adjacent to the base support member. A biasing mechanism is associated with the elongate support member for exerting a biasing force to bias the elongate support member toward an upstanding position. A platform for supporting a person in a standing position thereon is pivotally attached to a distal end of the elongate support member. As the elongate support member sways back and forth, the platform moves in an arcuate, swinging motion.

Abstract: A unitary holder device holds two protective CD boxes. The holder device comprises a pair of side rails positioned along opposite sides of the holder device such that a first CD box can be received and held between the side rails. A pair of lips or tabs project upwardly from opposite ends of the holder device such that a second CD box is received and held between the pair of lips or tabs. The second CD box is held in superimposed position next to the first CD box. Two or more holder devices can be combined to store a plurality of CD boxes, with the CD boxes being positioned in a stack one upon the other. The hinges of the CD boxes are all located on one side of the stack, and the hinges on each CD box is in alignment with pivotable engagement members that hold the adjacent holder devices together. Adjacent holder devices in the stack can be pivoted to open a CD box that is held between the adjacent holder devices.

Abstract: A system is disclosed for electronically processing negative composite video signals, wherein the negative composite video signals correspond to a negative image as produced by the projection of negative photographic film. The negative composite video signals are converted to positive composite video signals. The entire portion of the negative composite video signal between adjacent horizontal blanking portions is electronically inverted. The horizontal blanking portions of the negative composite video, which include the color burst signal, are not inverted. The composite signal that results includes the blanking portions, having the color burst signal, in their original, unaltered state. The image portion of the resulting composite signal, i.e., the portions of the resulting composite signal between the horizontal blanking portions, is inverted, and the resulting composite video signal is thus converted from negative to positive state.

Abstract: An improvement is provided in a screw gun used in the drywall installation industry. The improved screw gun has a conventional screw driving head at the forward end of the gun. A rear drive shaft extends from the motor of the gun, and an access member is provided at the back of the screw gun to provide access to the distal end of the drive shaft. An adapter member is adapted to be received in and withdrawn from the access member. The adapter member has a rotatable cutting tool associated therewith. Rotational motion is transmitted from the drive shaft to the rotatable cutting tool by the adapter member when the adapter member is received in the access member and the rear drive shaft is driven by the motor.

Abstract: A hand truck includes a rectangular main frame having a hand grip attached at the upper end of the main frame and a nose attached at the lower end of the main frame. A secondary rectangular frame lies alongside the back side of the main frame, with the secondary frame being pivotally attached at its upper end to the main frame. A pair of primary wheels are attached to the lower end of the secondary frame for rolling the hand truck over a support surface such as the ground or floor. A pair of auxiliary wheels are provided on a swing away frame. The auxiliary wheels can be moved to a position in which the hand truck rests in a stable position on all four wheels. The main frame can then be pivoted about the pivotal connection to the secondary frame to be positioned in a horizontal or near horizontal position elevated from the ground or floor. Heavy objects such as kegs of beer can be rolled directly from a truck, rack or conveyor to the hand truck without requiring the operator to lift the heavy objects.

Abstract: An automatic apparatus for drilling dowel holes in a workpiece and then inserting dowels in the dowel holes is disclosed. The apparatus has a moveable carriage that moves along the side edge of the workpiece. A drilling tool and a dowel inserting tool are attached to the moveable carriage. A programable controller controls the movement of the carriage and the operation of the drilling tool and the dowel injecting tool. The controller is programmed to move the carriage to a plurality of positions for drilling dowel holes in the workpiece. The number of dowel holes, the spacing of the dowel holes and the depth of the dowel holes are entered into a control panel to program the controller. The controller is then activated to move the carriage and operate the dowel drilling tool and dowel inserting tool.

Abstract: Wire fencing having a plurality of elongate picket members that lie adjacent to a side face of the chain link fencing so as to be substantially superposed over the fencing. Engagement members extend from the back faces of the picket members to project into the fencing and engage respective mounting members positioned within the fencing or on the opposite side face of the fencing. The interengagement of the engagement members and the mounting members holds the picket members firmly in place on the side of the fencing.

Abstract: A bicycle rack is disclosed for supporting a bicycle in an upward standing position at the back end of a vehicle, with the bicycle lying in a plane extending substantially perpendicular from the transverse axis at the back end of the vehicle. The bicycle rack comprises a pair of side-by-side, elongate members spaced from each other so as to receive a tire and rim of a bicycle wheel between the elongate members. The elongate members are mounted to a rear bumper of a vehicle, with the pair of elongate members extending backwardly from the vehicle. A front lateral member extends between the pair of elongate members and lies alongside the front end of the bumper, and a rear lateral member extends between the distal ends of the pair of elongate members. An elongate slot is formed by the front lateral member, the pair of elongate members and the rear lateral member.

Abstract: A label dispenser is disclosed for peeling individual adhesive-backed labels from a continuous strip of release paper upon which the labels are stored. The dispenser comprises a frame having a guide edge extending between the opposite sides of the frame and positioned adjacent to a top of the label dispensing end of the frame. When a strip of release paper containing an adhesive-backed label thereon passes over the guide edge it makes an abrupt turn as it passes over the guide edge, and the label is peeled from the release paper. A drive mechanism is positioned below the guide edge and spaced inwardly within the frame from the guide edge. The drive mechanism pulls the strip of release paper over the guide edge.

Abstract: An improvement is provided in a screw gun used in the drywall installation industry. The improved screw gun has a conventional screw driving head at the forward end of the gun. A drive shaft extends from the motor of the gun, and an access is provided at the forward end of the housing of the screw gun to provide access to the drive shaft. An adapter member is adapted to be received in and withdrawn from the access member. The adapter member has a rotatable cutting tool associated therewith. Rotational motion is transmitted from the drive shaft to the rotatable cutting tool by the adapter member when the adapter member is received in the access member.