Abstract: A hand truck includes an automatic height adjusting load platform, or alternatively, a kit of components provides for adding an adjustable load platform to an existing hand truck. The load platform position is held in a raised position while under no load conditions. A user places an article including a package on the raised platform, which is configured to rest at approximately waist level. In response to the weight of the article, the platform lowers, but the downward motion of the platform is inhibited by a platform arrestor. Preferably, the platform arrestor is configured such that the distance the platform will drop due to the weight of the load is proportional to the height of the article placed upon the platform. Thus the top of the article first placed upon the load platform is now substantially at waist level. This process can continue until the platform is lowered to the bottom of the shaft that the platform is slidably mounted to.

Abstract: A pump is disclosed, including a motor and a pump housing, for pumping mixed gas and liquid. The pump includes two intermeshed screw members for providing progressive cavities for transporting mixed fluids, within a pumping cavity, from a suction passage to a discharge reservoir of the pump housing. It further uses pumped product to provide cooling and lubrication to the motor and to bearings and timing gears of the screw members. By using pumped product for lubrication and cooling, the need for seals is eliminated, thereby reducing the need for maintenance. This makes the pump package advantageous for subsea deployment for use in pumping nearly depleted wells which may be manifolded together to provide adequate product flow.

Abstract: A roof sealant composition and method for treating roof constructions is provided in which a roof sealant composition including from about 25 to 60% by weight recycled paint sludge is applied to a roof in a first coating followed by the application of a supportive mesh. A second coating of the sealant composition is applied as a top coat. Upon drying, a composite is formed which exhibits elongation of greater than 300% and a tensile strength of greater than 500 psi and provides resistance to cracking and leaks.

Abstract: A dynamic random access memory (DRAM) includes a plurality of memory cells aligned with one another along a pair of wordlines with each wordline being connected to access alternate ones of the memory cells. The DRAM has aligned memory cells having cell areas of 6F2 yet exhibiting substantially the same superior signal-to-noise performance found in DRAM's having staggered 8F2 memory cells. The DRAM memory cells are formed by transistor stacks which are aligned along and interconnected by wordlines extending between and included within the transistor stacks. By forming the wordlines as a part of the transistor stacks, the wordlines are narrow ribbons of conductive material. During formation of the transistor stacks, the wordlines are connected so that a first wordline controls access transistors of every other one of the memory cells and a second wordline controls the access transistors of the remaining memory cells.

Abstract: A spring element used in a temporary package for testing semiconductors is provided. The spring element is compressed so as to press the semiconductor, either in the form of a bare semiconductor die or as part of a package, against an interconnect structure. The spring element is configured so that it provides sufficient pressure to keep the contacts on the semiconductor in electrical contact with the interconnect structure. Material is added and/or removed from the spring element so that it has the desired modulus of elasticity. The shape of the spring element may also be varied to change the modulus of elasticity, the spring constant, and the force transfer capabilities of the spring element.

Abstract: A resolution enhancement device is provided which utilizes either high extra mural absorbent optical fibers in the transfer optic, and/or which uses a transfer optic which is bonded to the scintillator without the use of any glues or adhesives. The device provides improved resolution of electron images from electron microscopes while not reducing the sensitivity of the apparatus.

Abstract: A permanent magnet is provided which retains its magnetic properties and exhibits a linear extrinsic demagnetization curve at elevated temperatures up to 700° C. The magnet is represented by the general formula RE(CowFevCuxTy)z, where RE is a rare earth metal selected from the group consisting of Sm, Gd, Pr, Nd, Dy, Ce, Ho, Er, La, Y, Th, and mixtures thereof and T represents a transition metal(s) selected from the group consisting of Zr, Hf, Ti, Mn, Cr, Nb, Mo, W, V, Ni, Ta, and mixtures thereof.

Abstract: A high voltage cable termination is provided where a cable is wrapped in a dielectric tape, and a braided shield. The shield and dielectric tape are stripped back exposing the conductors. An inner ferrule having a flanged portion and a sleeve portion is slipped over the cable so that the conductors and dielectric tape pass through the inner ferrule and the shield fans out and is slipped over the sleeve portion of the inner ferrule. An outer ferrule is slipped over the sleeved portion of the inner ferrule, and is crimped thereto, thus pinching the shield between the inner and outer ferrules. A pin is crimped to the end of each conductor, and an insulating overmold is applied over the conductors.

Abstract: An arrangement is provided for determining the relative angular orientation between an excavator bucket and the dipper stick of an excavator. The excavator bucket is mounted on a bucket linkage that is pivotally secured to the end of the dipper stick. An hydraulic actuator has an hydraulic cylinder pivotally connected to the dipper stick, and a piston rod pivotally connected to the bucket linkage. Extension or contraction of the hydraulic actuator causes the excavator bucket to be pivoted by the bucket linkage with respect to the dipper stick. A cable extension linear position transducer having a transducer casing, a sheath extending from the casing to a pulley system, and an extensible belt cable extending from the sheath through the pulley system to an end of the piston rod, provides an electrical output related to the extension of the belt cable from the sheath. A transducer mounting secures the casing of the cable extension linear position transducer in fixed relationship to the hydraulic cylinder.

Abstract: A stretcher table assembly is provided for attachment over an ambulance stretcher. The stretcher table assembly includes a tiltable support surface for securing emergency medical equipment used during an emergency thereon. The tiltable support surface may be inclined to permit technicians to more easily view the equipment secured thereon. Additionally, the support surface has a grid of holes upon which anchoring devices may be positioned. The anchoring devices permit emergency medical equipment to quickly and easily secure to the support surface without the need of adjusting a strap or buckle. A pair of legs extends away from the support frame and has attachment feet for engaging the rails of the stretcher. Each of the legs is secured to the rails by an attached securing mechanism. The securing device releasably holds the tiltable stretcher table assembly in place over the stretcher.

Abstract: A wafer processing apparatus and method of processing a wafer utilizing a processing slurry are provided. The wafer processing disk comprises a processing disk body and a plurality of processing teeth secured to the processing disk body. The plurality of processing teeth project from the disk body to define respective processing surfaces. The plurality of processing teeth include at least one pair of spaced adjacent teeth defining a processing channel there between. The processing channel is shaped such that the cross sectional area of the processing channel decreases as a function of its distance from the processing disk body.

Abstract: The present invention relates to an easily erected small cabin, in particular a toilet cabin, which is provided with a floor part (1), a ceiling part (2), a wall element (3) and corner posts (4) connecting together the wall elements, floor part and ceiling part, and wherein all the parts described hereinabove are manufactured from plastics.

Abstract: A wafer cassette includes a stationary dual-zone temperature control base and a removable wafer cassette top. The top includes a main cassette support structure, onto which wafer test electronics, a test interface connector, a wafer interconnect assembly, a wafer test area, a flex film interconnect, and a wafer chuck with evacuation chamber and electric wafer heater, and at least one rough alignment fixture are mounted. A wafer to be tested is inserted, with a pressure-isolating seal, between the wafer chuck and the wafer test area. The base is a stationary fixed portion which includes a first support compartment, a second support compartment and thermal circuits, each of which includes fluid inlet and outlet connections. The fixed portion further includes a heater interconnect to provide connection and external access for a heater element, as well as a vacuum interconnect line to provide external connection to the evacuation chamber.

Abstract: An improved die stacking scheme is provided. In accordance with one embodiment of the present invention, a multiple die semiconductor assembly is provided comprising a substrate, first and second semiconductor dies, and at least one decoupling capacitor. The first semiconductor die defines a first active surface. The first active surface includes at least one conductive bond pad. The second semiconductor die defines a second active surface, the second active surface includes at least one conductive bond pad. The first semiconductor die is interposed between the substrate and the second semiconductor die such that a surface of the second semiconductor die defines an uppermost die surface of the multiple die semiconductor assembly and such that a surface of the first semiconductor die defines a lowermost die surface of the multiple die semiconductor assembly. The decoupling capacitor is secured to the uppermost die surface and is conductively coupled to at least one of the first and second semiconductor dies.

Abstract: A shock wave generator is provided incorporating a compressed gas reservoir, a high speed valve assembly, and a shock tube. The high speed valve assembly is arranged to open and close selectively a gas passage extending from the compressed gas reservoir to the shock tube. The high speed valve assembly comprises a valve sleeve, a valve seat, and a valve sleeve driving assembly. The valve sleeve is arranged to extend across the gas passage between a first side of the gas passage and a second side of the gas passage. The valve seat is arranged on the second side of the gas passage and is positioned to receive the valve sleeve upon extension of the valve sleeve across the gas passage. The valve sleeve driving assembly is arranged to cause extension and retraction of the valve sleeve across the gas passage. The valve sleeve defines a circular cross section and an epicentral valve sleeve axis and includes a valve sleeve flange arranged on a leading edge thereof.

Abstract: An object manipulation system is provided including a plurality of objects arranged in an object plane, an X-Y positioner, and an object manipulator. The X-Y positioner is arranged to move within an X-Y plane displaced from and parallel to the object plane. The object manipulator is coupled to the X-Y positioner so as to be movable with the X-Y positioner. The object manipulator comprises a rotary turret assembly and a plurality of gripper assemblies. The rotary turret assembly defines a plurality of gripper assembly stations and a gripper pick/place position. The rotary turret assembly is arranged to rotate the gripper assembly stations about a turret axis so as to position a selected one of the gripper assembly stations in the pick/place position. The gripper assemblies are arranged in respective ones of the gripper assembly stations.

Abstract: A stair chair is provided and includes a seat 30, a backrest 34, a foot rest 32, upper handles 84 and lower handles 82. Three wheels 62 are mounted at each side of the chair. The wheels are pivotal about their own axis and also a common axis. Rotation about the common axis can be braked or locked. The chair can be lowered downstairs with a person pulling on the upper handle 84 and another person pushing on the lower handles 82 in order to slow movement of the chair down the stairs.

Abstract: A wood based product comprises condensed natural wood fibres. The wood fibres have bulk density of about 20 lbs/ft3 or greater at moisture content of about 15% by weight or less, and each particle of the wood fibres has a particle size of less than about {fraction (3/16)} inch. By using such condensed wood fibres, the wood based product is capable of functioning as physical bedding for poultry that can absorb moisture and ammonia for a complete production cycle of commercial poultry operations.

Abstract: A square bale processor having an elongated conveyor mounted on the frame and a mechanism for mounting the frame to a set of wheels in such a way that the back end of the conveyor may be positioned a predetermined distance above the ground or adjacent to the ground. A bale shredding roller which may be substantially cylindrical or may be in the shape of a truncated cone with flails symmetrically spaced about its circumference and along its length is rotatably mounted adjacent the front end of the conveyor. The axis of rotation of the shredding roller is positioned in a plane which is substantially perpendicular to the conveyor in the direction of the length of the processor. The roller axis at the back end of the roller is positioned below the front end of the conveyor. The bale shredding roller axis may be substantially horizontal or it may slope upward from the back end of the shredding roller to the front end of the roller.

Abstract: An article of jewelry arranged to simulate natural optical effects, such as sparkle and scintillation, is described. The article comprises a jewel, such as a brilliant cut diamond and one or more light sources, such as colored LEDs, incorporated in the article of jewelry for emitting light so as to illuminate the jewel. The article also comprises a microcontroller for driving the one or more LEDs to cause them to emit light pulses of varying intensity thereby simulating said natural optical effects of the jewel. The duration of the light pulses and the location of each light pulse can be varied to enhance the artificial illumination. The article preferably has a cordless rechargeable power supply which avoids the need for unsightly electrical contacts by using an inductive loop charging circuit.