Abstract: A pressure pad array is used to float glass sheets from a glass heating furnace to a ring mold in a press bending station. The pressure pads have transversely spaced, longitudinally-extending slotted nozzles angled towards one another to provide a static pressure area for floating the glass sheet. The slotted nozzles are aligned with the direction of glass sheet travel and the space between adjacent pressure pads is covered by a spacer baffle to generate additional static pressure flotation areas. The static pressure areas formed by the slotted nozzles generally produce uniform pressure profiles extending longitudinally and transversely against the sheet's underside to stably float the glass sheets on a heated gas cushion.

Abstract: A process forms lightweight molded articles by positioning inserts having gas creating substances at set positions on a matrix layer positioned between mold halves. The matrix layer with inserts is pressed into the mold cavity and sandwiched between molding material. The gas forming substances are activated to produce gas and the mold halves partially opened to allow the gas to form gas cavities at the position of the inserts. The matrix may be a film or net with gas creating substances in attached packets. Alternatively, the matrix may be developed with inserts of gas producing substances encapsulated within molding material by co-extrusion or co-injection nozzles.

Abstract: A pilot operate, throttling valve is provided for a pump that has inlet valving sufficient to permit the pump to operate with charged fluid at a varying inlet pressure. The throttling valve includes a flow control slave valve operated by a pressure unbalanced mechanical actuator. The pressure differential in the actuator controlling the flow in the slave valve results from a constant pressure produced by a conventional pressure regulating valve generating an actuator force which is reduced by a controlled pressure generated from a solenoid actuated control valve. Because pressure, not flow, controls the pilot, the throttling valve is particularly suited for HEUI applications where the ECM must quickly and accurately control the pump irrespective of viscosity and flow considerations of the pumped oil.

Abstract: A two-component dispensing gun has two longitudinally-extending dispensing passages receiving metering rods and in fluid communication with two feed passages adjacent to an especially configured metering rod tip and valve seats formed at the exit end of each dispensing passage. Valve seats of the dispensing passage extend as protrusions from the gun nose and are sealingly received within cup shaped recesses formed in a detachable, throwaway nozzle having a static mixing chamber. The nozzle has a truncated cone configuration which, in combination with the geometric configuration of the dispensing and feed passages alleviates turbulent flow of the liquid components until reaching the static mixer within the nozzle. A cammed surface on each metering rod in combination with a yoke crossbar formed as part of the gun's trigger provides increased motion of the trigger for fine or slow metering applications of the gun.

Abstract: A roof construction uses a one-component adhesive to adhere roof tiles to a roof. The adhesive is formed in a U-shaped pattern in that the adhesive is dispensed in a bottom leg deposit on the tile's underside, a bight deposit extending about the tile's leading edge and a top adhesive deposit overlying the bottom deposit and extending on the outside surface of the tile. As the tiles are laid onto the roof in an overlying fashion, the U-shaped adhesive is sandwiched between the tile, the overlying tile and the roof forming sealing contact therewith and therebetween.

Abstract: An energy efficient general purpose injection molding employs a hydraulic drive for injection and clamp machine functions and an electric drive for screw recovery. Both drives use AC “squirrel cage” induction motors under vector control. Speed command signals for the vector controls are generated by the machine's controller utilizing state transition and predictive signal techniques to account for motor and motor/pump response latencies. Hydraulic drive efficiency is improved by varying motor speed/pump output to match cycle requirements to retain hydraulic drive advantages for mold clamp and injection functions while improving the electric drive performance for screw recovery.

Abstract: A carton for a portable two-component polyurethane foam spray kit has front and rear panels interconnected at their vertically extending ends with carton sides to form a rectangular opening closed at its bottom by bottom flaps. A top cover flap has valve openings allowing the kit user to open and close pressurized “A” and “B” polyurethane cylinders carried in the carton without opening the carton. The carton is carried by a strap secured to the cylinders extending through the top of the carton. A closeable, punch-out front flap formed as part of the front panel allows the kit hoses to be attached to the cylinders and the dispensing gun and stored for shipment and use within the carton between the cylinders and the front panel.

Abstract: A hot walled, industrial, batch-type vacuum furnace constructed with a cylindrical furnace casing having a closed spherical end and an open end adapted to be closed by a sealable door. Furnace insulation is applied to the outside of the door and furnace casing so that the inside of the furnace is impervious to the furnace gases. Special mounting arrangements are used to seal furnace components extending into the casing as well as the door by elastomer seals which are air cooled.

Abstract: A gamma camera is modified to perform PET studies as well as SPECT studies by utilization of the camera's SPECT electronics to likewise generate triggering pulse signals for photons indicative of a positron annihilation event which are corrected, on a bundled basis, for position, linearity and uniformity by the same digital processors used by the camera for SPECT studies. In addition the triggering pulse signals generate analog timing signals passed through a coarse coincidence circuit to establish matched pairs of timing signals which are digitally time stamped and processed along with the bundled set of pulse signals that the timing signals originated from.

Abstract: A HEUI system uses a fixed displacement, axial displacement pump to provide a generally constant pump flow of high pressure hydraulic fluid over the operating speed range of the pump to minimize parasitic power drains on the engine. The axial piston pump includes a orificing suction slot to vary the pump displacement over the operating speed of the pump. A throttling valve at the pump inlet may be provided to starve inlet fluid feed if reduced flow to the injectors is additionally required.

Abstract: An axial piston pump has a rotatable input shaft integral with a rotatable swash plate. A non-rotatable cylinder contains a plurality of axially movable pistons having spherical ends extending through the cylinder journaled in slipper assemblies that are in contact with the swash plate. A retainer plate in contact with the slipper assemblies is spring biased to urge the slippers against the swash plate to maintain the swash plate in fixed axial position. The input shaft is journaled only by a sleeve bearing while an annular thrust bearing plate between pump housing and a swash plate axial end allows for swash plate rotation within the pump housing. The swash plate has a cam shaped circumferential edge surface. An auxiliary pump having a prime mover in contact with the cam shaped edge of the swash plate is mounted between the axial ends of the piston pump.

Abstract: A roof construction uses a one-component adhesive to adhere roof tiles to a roof. The adhesive is formed in a U-shaped pattern in that the adhesive is dispensed in a bottom leg deposit on the tile's underside, a bight deposit extending about the tile's leading edge and a top adhesive deposit overlying the bottom deposit and extending on the outside surface of the tile. As the tiles are laid onto the roof in an overlying fashion, the U-shaped adhesive is sandwiched between the tile, the overlying tile and the roof forming sealing contact therewith and therebetween.

Abstract: A carton for a portable two-component polyurethane foam spray kit has front and rear panels interconnected at their vertically extending ends with carton sides to form a rectangular opening closed at its bottom by bottom flaps. A top cover flap has valve openings allowing the kit user to open and close pressurized “A” and “B” polyurethane cylinders carried in the carton without opening the carton. The carton is carried by a strap secured to the cylinders extending through the top of the carton. A closeable, punch-out front flap formed as part of the front panel allows the kit hoses to be attached to the cylinders and the dispensing gun and stored for shipment and use within the carton between the cylinders and the front panel.

Abstract: An energy efficient general purpose injection molding employs a hydraulic drive for injection and clamp machine functions and an electric drive for screw recovery. Both drives use AC "squirrel cage" induction motors under vector control. Speed command signals for the vector controls are generated by the machine's controller utilizing state transition and predictive signal techniques to account for motor and motor/pump response latencies. Hydraulic drive efficiency is improved by varying motor speed/pump output to match cycle requirements to retain hydraulic drive advantages for mold clamp and injection functions while improving the electric drive performance for screw recovery.

Abstract: A gamma camera is modified to perform PET studies as well as SPECT studies by utilization of the camera's SPECT electronics to likewise generate triggering pulse signals for photons indicative of a positron annihilation event which are corrected, on a bundled basis, for position, linearity and uniformity by the same digital processors used by the camera for SPECT studies. In addition the triggering pulse signals generate analog timing signals passed through a coarse coincidence circuit to establish matched pairs of timing signals which are digitally time stamped and processed along with the bundled set of pulse signals that the timing signals originated from.

Abstract: A cordless cellular or pleated window shade having a head rail, a bottom rail and a pleated shade fabric therebetween uses a conventional spring tensioned roller shade bar for raising and lowering the shade without draw cords. A lead screw permanently affixed to an end cap of the head rail threadingly engages one end of the roller shade bar while the opposite end of the roller shade bar has a movable support locking the spring tensioner of the roller shade bar to the support to permit movement of the roller shade bar within the head rail. Lift cords wrap and unwrap themselves about the roller shade bar so that lowering of the shade tensions the spring which spring tension is then used to raise the pleated or cellular shade. The pitch of the lead screw forces the lift cords to wrap themselves about the shade roller bar in a singular, non-overlying manner while the roller shade bar moves within the head rail thereby assuring consistent alignment of the bottom rail with the head rail at any shade position.

Abstract: A high pressure plug/port assembly includes a plug having a head portion at one end, a guide portion at the other end and an O-ring portion therebetween. An annular plug seat surface extends radially inward from the head portion to the O-ring portion at the intersection thereof and a chamfered surface extends radially outward from the O-ring portion to the guide portion at the intersection thereof. The port includes a threaded counterbore in threaded engagement with the plug head portion, a smaller bore receiving the plug's guide portion and a frusto conical bore extending from the smaller bore to the counterbore and defining an annular port seat surface extending radially outward from the frusto conical bore to the counterbore.

Abstract: A method and apparatus that converts time-resolved sensor signals into frequency domain signals using Fast Fourier Transforms and power spectral densities. A signal, as a means to assess catalyst performance such as a signal based on sensing oxygen concentration in motor vehicle exhaust in accordance with the present invention is in the time domain and has multiple components at different frequencies. The use of Fast Fourier Transforms isolates the various spectral density which arise from different frequency components of the complex time domain signal. The analysis has been found to be substantially independent of operating conditions. The power spectral density has found to be a precise indication of oxygen storage and release of the catalyst and catalyst performance. The catalyst performance can be signaled to the vehicle operator for on board diagnostics (OBD) of the catalyst.

Abstract: An on-board catalytic monitoring system uses an intrusive technique to cause the vehicle's engine to cycle between first and second operating conditions. The first and second operating conditions are chosen such that different concentrations of emissions with different chemistries are present at the first and second operating conditions. A calorimetric sensor with a selective catalyst senses exothermic oxidation reactions produced by the emissions in the exhaust gas passing over the sensor. By matching the catalyst activity with the emission concentrations occurring at the operating conditions, the difference between the heat release sensor signals detected between the first and second operating conditions is indicative of the actual concentration of specific emissions in the exhaust gas stream. The difference or delta signal, obtained without reference to a zero point, provides an excellent correlation to the efficiency of the vehicle's catalytic converter for converting the sensed emission, i.e.

Abstract: An injection molding machine uses a summed, multi-term control law to control ram velocity during the injection stroke of a molding cycle to emulate a user set velocity profile. An automatic calibration method sets no load ram speeds to duplicate user set ram speeds. Finite impulse response filters produce open loop, no load control signals at advanced positions on the velocity profile to account for lag in system response. An adaptive, error term indicative of load disturbance, observed from a preceding cycle is added at the advanced travel position predicted by the finite impulse response filter to produce a predictive open loop, load compensated control signal. Finally, an auto tuned PID controller develops a real time, feedback load disturbance signal summed with the open loop control signal to produce a drive signal for the machine's proportioning valve.