Abstract: This invention is a low profile, over-under conveyor with two continuously moving chain loops that form upper and lower tracks on which flexible work platforms ride. Each flexible platform includes two or more spaced metal slats joined by a thin flexible band. The slats include shoes that rest on and frictionally engage the moving chain loops. When one of the platforms reaches the end of one track, the flexible platform frictionally engages and compresses a pneumatic drive wheel and flexes to negotiate a low profile inversion and return on the other track. This allows the conveyor to handle long work platforms, while having a relatively low profile. Asynchronous accumulation and release of the freely moving flexible work platforms is accomplished using stop cylinders mounted inside the frame of the conveyor.

Abstract: The invention is a model railroad track scrubbing car with rollers set at a scrub angle of about 30° to scrubs the tops and sides of the track rails. The rollers freely rotate about fixed axle under the chassis of the weighted car. Each roller is preferably a conventional paint roller with an inner sleeve and an outer tubular roll made of an absorbent, compressible, resilient foam material. The active working surfaces of each roller compress against, frictionally engage and deform around the tops and sides of the rails. The scrub angle and rollers provide across-the-rail scrubbing action and possibly along-the-rail scrubbing action. The circumferential working areas of the rollers are wider than the width of their associated track rails. The scrub angle and height of the roller axle above the track rails are adjustable to set the amount of roller compression and scrubbing action against the track rails.

Abstract: An electronic animal collar designed to reduce the load applied to the animal's neck by one or more stimulating electrodes or sensors that extend from or through an inside surface of the collar housing into the skin of the animal during use, and to permit the collar to be securely fastened to the neck of the animal without risk of causing discomfort or damage to the skin of the animal due to pressure from the stimulating electrodes. The inside surface of the collar housing has one or more high point surfaces that are raised to extend the inside surface above the base of the stimulating electrodes or sensors toward the animal during use so as to increase contact between the inside surface and the animal's skin and to thereby relieve and distribute the load caused by collar tension around the animal's neck over a larger contact friction area.

Abstract: The present invention is an engraved gemstone viewer for viewing a flat, smooth surface of a gemstone that has been micro or nano etched with an inscription such as an identification number. The gemstone is mounted on a piece of jewelry or can remain unmounted when placed inside or otherwise received by the viewer. A source of light directs a light beam toward a magnifying lens coated with a reflection enhancing coating. The lens reflects the light beam along a path incident to the surface of the gemstone containing the inscription. The smooth flat gemstone surface spectrally reflects the light beam along a path back toward the magnifying lens, which produces a viewable light image that reveals the inscription. The inscription is shown as a dark or lightless region of the light image.

Abstract: This invention is a tailgate for a pickup truck having a unibody frame that is pivotally secured at its lower end proximal the rear end of the truck bed. The frame includes a pair of linear risers that fit into the rear vertical recesses of the sidewalls of the truck when the tailgate is in a closed position. The risers support a plurality of bowed lateral beams that extend outwardly from the rear of the truck to extend the length of its cargo bay when the tailgate is in its closed. The bowed beams support a set of flat angled ramps that are aligned with the truck bed. The tailgate is swung to an open position so that the ramps extend down from the truck bed and are joined by a detachable ramp to form one or more low incline ramps for loading and unloading items into the cargo bay.

Abstract: An online method and system for evaluating a gemstone is provided that enables a consumer to use a personal computer to evaluate the visual appearance and measurement data of the gemstone by emulating the laboratory instruments that previously collected the data for the gemstone. The computer is connected to the internet and a website that is linked to a gemstone database, emulation software and graphical user interface. The consumer identifies the specific gemstone he or she wants to evaluate, and an interactive gemstone certificate screen is displayed. The consumer separately selects and then emulates a variety of lab instruments, such as color and clarity grading, geometric measuring, and light performance and light ray tracing instruments. Graphical images and data pertaining to the selected gemstone are displayed on the computer monitor, and selected portions of the database are downloaded and saved on the computer memory.

Abstract: The present invention relates to a storable vehicle restraint for securing a trailer to a loading dock. A mounting plate anchors a vertical track to the dock. A horizontal barrier is joined to the track and is movable between stored and raised positions. The barrier has a throat that receives the ICC bar of a trailer and a hook that is position in front of the bar to prevent the trailer from moving away from the dock. A cooperating drive unit and lift assembly allows the barrier to be stored at height of 9 inches and raised to a height of 30 inches, while providing a substantially uniform upward force to the barrier. A sensor having a switch to detect proper alignment with the ICC bar is positioned along side the throat of the barrier. The barrier forms a housing that protect the lift assembly, drive unit and sensor switch.

Abstract: The invention is a rotary draw bending machine and process for bending materials such as tubes or pipes into precise bends. A spindle holds a bending die, and a radial arm holds a counter-die. The spindle and arm are simultaneously rotated in opposite directions by a dual hydraulic drive controlled by an electro-hydraulic control system with foot pedal controls. The bend angle is preset by a protractor-like dial and limit switch mechanism. The radial arm has a slide track to align the counter-die with the bending die. The ratchet mechanism has teeth to allow incremental advancement of the counter-die when aligning it with its bending die to accurately set the gap between the dies. The machine is used with a wide variety of dies to bend a wide variety of workpiece diameters. The ratchet mechanism preferably includes a fine tuning device to provide an infinite range of alignment positions.

Abstract: An electronic animal collar designed to reduce the load applied to the animal=s neck by one or more stimulating electrodes or sensors that extend from or through an inside surface of the collar housing into the skin of the animal during use, and to permit the collar to be securely fastened to the neck of the animal without risk of causing discomfort or damage to the skin of the animal due to pressure from the stimulating electrodes. The inside surface of the collar housing has one or more high point surfaces that are raised to extend the inside surface above the base of the stimulating electrodes or sensors toward the animal during use so as to increase contact between the inside surface and the animal=s skin and to thereby relieve and distribute the load caused by collar tension around the animal=s neck over a larger contact friction area.

Abstract: A lid opening and closing system for a waste container having an opening and a lid for covering the opening, the system including a proximity sensor, which may be a capacitive proximity sensor, for sensing the presence of a user's hand or body near the waste container and for sending a control signal. A drive system is connected to the lid for causing the lid to move from a closed position, where the lid covers the opening, to an open position, where the waste container is positioned to accept waste, and then back to the closed position in response to the control signal. The proximity sensor being more sensitive to the user's hand or body approaching from the top of the waste container rather than from the front, sides or back of the waste container.

Abstract: The present invention relates to a wetness monitoring system that includes a data collection device that sends wetness measurement data to a central computer that detects changes in wetness measurement data caused by the presence of urine or other dielectric fluids. The data collection device includes a semi-reusable sensor and reusable data collector that are worn on a garment of the person. The data collector includes an internal power source so that the person can live a normal ambulatory life. The data collector has an electrical circuit that uses the changing resistance characteristics in the sensor to gather wetness measurement data. The data collector periodically generates and transmits a signal containing the actual wetness measurement data. The signals are coded to identify the particular data collector or person sending the signal. The data collector is programmed to conserve power by sending signals less frequently during periods when the sensor is clearly dry.

Abstract: An electronic animal collar designed to reduce the load applied to the animal's neck by one or more stimulating electrodes or sensors that extend from or through an inside surface of the collar housing into the skin of the animal during use, and to permit the collar to be securely fastened to the neck of the animal without risk of causing discomfort or damage to the skin of the animal due to pressure from the stimulating electrodes. The inside surface of the collar housing has one or more high point surfaces that are raised to extend the inside surface above the base of the stimulating electrodes or sensors toward the animal during use so as to increase contact between the inside surface and the animal's skin and to thereby relieve and distribute the load caused by collar tension around the animal's neck over a larger contact friction area.

Abstract: A baseball bat is described having of an elongated cylindrical handle portion for gripping, a cylindrical barrel portion for striking and a tapered cylindrical mid-section connecting the handle portion and the barrel portion, wherein at least the barrel portion is tubular and is constructed solely of a polymer composite material with a three-dimensional fiber reinforcement architecture resulting in improved durability versus conventional polymer composite bats, without any sacrifice in playing performance. Also disclosed are polymer composite baseball bats where the polymer composite material includes between 85% and 100% fiberglass reinforcement fibers, and/or where the central cavity is filled with a damping material such as polymeric foam or a low-density granular material, and/or where the bats are constructed of multiple layers of intertwined tubular braid forms using a precision molding process.

Abstract: A slatwall extrusion and assembly for a wall of a building to support hangers and shelving and the items they carry. Each section of slatwall has a continuous linear rear wall that integrally joins number of spaced boards. Each board has front, rear, top and bottom walls that form a continuous loop around a hollow interior. Each board also has a downwardly extending double-walled lip. The lip is spaced from its adjacent lower board to form an L-shaped slot. The continuous rear wall is firmly secured to the studs or drywall of the wall by self tapping screws or an adhesive coating. The linear rear wall, hoop shaped boards, and double-walled lips combine to form a sturdy, lightweight and inexpensive slatwall extrusion. High impact polystyrene (HIPS) is used to achieve even further cost and weight reductions while maintaining the strength of the slatwall extrusion and assembly.

Abstract: A robotic wash cell including a six-axis robotic arm and end effector equipped with nozzles that spray unheated, solvent free, pure water at high-pressure to clean or debur objects by maintaining the nozzles in close proximity and substantially normal to each surface being cleaned or edge being deburred. The robotic cell wash is particularly useful for cleaning contaminants such as oil and grease from items having more complex shapes. The six-axis robotic arm positions the nozzles and their sprays substantially normal to each surface being cleaned or deburred. The nozzles produce a multi-zone spray pattern with a continuous effective cleaning zone. A water recycling and pressurizing system collects the used water, separates out the oil and grease contaminants to a level of about 5 ppm, and pressurizes the pure water to about 3,000 psi for washing operations or about 6,000 psi for deburring operations.

Abstract: A cooling water pump for internal combustion engine includes a base and an outer cover forming a water input chamber, an impeller supported on a shaft within said chamber, fed shaft includes a bearing/seal unit mounted within the base and the shaft extended outwardly for connection to the engine. A one-piece, fully enclosed and double shrouded impeller is secured to the shaft. Impeller has a central hub with an outer peripheral concave surface, a bottom convex end wall, vanes are secured to the central portion of the concave wall in the bottom wall and project outwardly therefrom with an outer top shroud. The base has a recess within which the bearing/seal unit is mounted. The recess extends outwardly beyond the outer edge convex wall of the hub from a cooling chamber. The vanes direct a portion of the water flowing through the passageway into the recess for cooling purposes and then back into the radially outer portion of the passageway for discharge with the flowing water into the outlet passageway.