Abstract: A method of engine calibration is provided for use with an engine having a plurality of combustion cylinders and a valve train having individual components dedicated to each of the plurality of combustion cylinders. One or more anomalous cylinders are first identified, among the plurality of combustion cylinders, that are operating at a level above or below a common baseline. Changes are then made to the individual components within the valve train, associated with the one or more anomalous cylinders, to provide the one or more anomalous cylinders with individual components having different operative ratings from their respective initial operative ratings so that the anomalous cylinders operate at or closer to a common baseline.

Abstract: The present invention relates to a mobile vehicle or wheelchair having the ability to provide stabilized transport to at least one individual on a variety of surfaces, slopes and/or terrains. The mobile unit or wheelchair of the invention may travel across smooth and very rough surfaces, slopes of varying or different angles and various outdoor terrains (including grassy, rocky, sandy, muddy and/or hilly terrains). In one aspect of the invention, the height of any part of the unit or the overall height of the device may be adjusted preferably to raise or lower the center of gravity. For example, the height of the device may be lowered to provide more stable transportation. In another aspect, the device may be adjusted to increase or decrease the size of the footprint (or any part of the footprint) of the device. For example, the footprint of the device may be enlarged to provide more stable transportation.

Abstract: A retractable ramp system 10 for a mobility vehicle. A ramp platform 12 is driven by a reversible motor 86, associated drive pulley 88, and drive belt 18 affixed to a ramp carriage assembly 14. A spring-loaded mechanical release assembly 98 is used to engage the drive pulley to the motor and to disengage the drive pulley from the motor. A manual control assembly is used for manual deployment of the ramp when the drive pulley is disengaged from the motor. Ramp flap 52 provides a transition between ramp platform 12 and a mobility vehicle. Ramp flap is supported by wheels 54 which translate along ramp platform 12. Linear bearing blocks 30 attach to pivot arms 44 of the carriage assembly, which are in turn pivotably attached to ramp platform 12. Linear bearing blocks 30 translate ramp platform 12 along guide shafts 32 during deployment and stowage.

Abstract: A fluid flow management system for enhancing cooling of a circuit pack. The system includes a bar extending transverse to the direction of fluid flow. The bar breaks up the otherwise laminar flow into a turbulent flow.

Abstract: An apparatus holds a feeler gage. The apparatus includes a shaft having an end to which the feeler gage is attached. A fixture aligns the shaft with an opening into which the feeler gage is inserted. The opening may be a gap of a connector. A portion of the shaft is a measuring section having a plurality of markers. The markers are stripes, grooves, or lands on a portion of the shaft. The fixture comprises a channel, sleeve or bearing that guides the shaft onto the fixture. The fixture includes a ridge for insertion of the fixture onto a track. The fixture may have an alignment arm that engages a side surface of the connector. The fixture has a latch that attaches the fixture to the track. The latch of the fixture comprises two substantially parallel elongate members separated by a distance approximately equal to a width of the track.

Abstract: A device for housing electronic components that produce heat and must be cooled. The device includes a housing having at least one vertical wall that has an interior surface and a corresponding exterior surface. Rows of vains are disposed on the interior surface of the wall. Each row of vains contains a plurality of parallel vains having the same general dimensions. Adjacent rows of vains are not aligned. As a result, the vains on one internal row do not lay in the same line as vains from adjacent internal rows. External vains are disposed on the exterior surface of the wall, opposite the internal vains. The external vains correspond in position and number with the internal vains. Heat absorbed by the internal vains is transferred to the external vains by conduction, wherein the external vains dissipate the absorbed heat to the surrounding environment with an efficiency that is made possible by the configuration of the vains.

Abstract: A power door latch that eliminates the need to slam a door and that also allows the required two stage lock to engage. The OEM striker once engaged is driven toward the door frame in a linear motion, by a reversible electric motor that drives an acme screw within the drive housing. Adjustable limit switches detect full closure and full open to activate and deactivate the motor. A mechanical delay is incorporated within the drive housing to allow the engagement of the two stage lock mechanism. The power door latch can be used with any OEM striker in most vehicles. Additionally, the power door latch can be manually engaged in the event of a power failure.

Abstract: A gear transmission has a synchronizing arrangement associated with a helical gear that has end play. The synchronizing arrangement includes a shift sleeve having internal splines engageable with external teeth of a clutch gear that is an integral part of the helical gear. A torque lock feature is provided by cooperating back tapered torque lock surfaces of the splines and the external teeth of the clutch gear. The internal splines of the shift sleeve and the external teeth of the clutch gear are shaped to accommodate the end play of the helical gear and reduce variation in engagement of the torque lock surfaces.

Abstract: A replaceable nozzle tip for the vacuum spindle of a pick and place machine is provided with mechanical fingers for gripping a component. Vacuum normally supplied to the spindle for acquiring components by suction is used to actuate a plurality of mechanical fingers to acquire components by gripping that are not suitable for acquisition by suction.

Abstract: An apparatus is disclosed for woodworking and like applications to clamp structural members in abutting relation by initial formation of a pair of recesses in the structural members on a common imaginary line perpendicular to the intended joint line. The clamping apparatus has two clamping members each having an outwardly projecting engagement portion configured to fit securely in the recesses and a clamping mechanism actuable to move the clamping members and their engagement portions toward and away from one another for clamping movement along a clamping line coinciding with the imaginary line perpendicular to the intended joint line. The clamping apparatus may be used in forming virtually any edgewise abutting joint between respective structural members, e.g., miter joints, butt joints, linear edge joints, and radius edge joints.

Abstract: A platform attachment for a ladder having a pair of spaced apart sidepieces connected together by a series of spaced apart rungs includes a pair of spaced apart slideways mounted on the ladder adjacent to respective sidepieces, and a platform extending between and supported on the slideways for sliding movement reciprocatively between a working position projecting forwardly from the ladder and an out-of-the-way position retracted rearwardly from the working position. Preferred mounting structure includes a bracket connected to the slideways and engaging a rung of the ladder above the slideways.

Abstract: Woven flexible belting of improved cut resistance, heat resistance and strength, and consequently, of longer life, so that it is suitable for use in a conveyer belt for carrying hot and sharp edged materials, includes warp and fill textile threads and yarns of Kevlar.RTM. or equivalent polyaramide, having a plurality of separate thermally conductive binder wires extending longitudinally along the belting and with portions thereof projecting to slightly beyond a surface plane of the belting, which surface is that intended to carry materials to be supported by the belting, as when it is employed as a part of a conveyer.

Abstract: Described is a machine for pre-gluing raw circuit surfaces of printed circuit boards (P.C. boards) at an adhesive station and properly positioning the P.C. boards at a placement station for placement of leadless electronic components (chips) onto the adhesive. A carousel provides program preselected vertical supply of taped components to a feeder assembly which feeds individual chips onto a nozzle of a turret-type vacuum head at a pick-up station. The turret-type head has four nozzles spaced 90.degree. apart about the central axis of the head. As the turret is rotated, a chip is transported by a nozzle, sequentially, from the pick-up station to a centering and testing station, a centering and orienting station, and a placement station. Located between the testing and orienting stations is a chip removal station for ejecting defective or inverted chips. Sensors are located at the adhesive and placement stations to detect defective P.C. boards so that they may be bypassed.

Abstract: A feed assembly is engageable with feed holes spaced along the length of a taped supply of electrical components in order to index the taped components to a pick-up station and aid in transfer of the components from the tape to a turret-type vacuum head at the pick-up station. Cyclical actuation of the feed assembly actuates a cutter for that portion of the tape which has been emptied of the components.

Abstract: Described is a machine for pre-gluing raw circuit surfaces of printed circuit boards (P.C. boards) at an adhesive station and properly positioning the P.C. boards at a placement station for placement of leadless electronic components (chips) onto the adhesive. A carousel provides program preselected vertical supply of taped components to a feeder assembly which feeds individual chips onto a nozzle of a turret-type vacuum head at a pick-up station. The turret-type head has four nozzles spaced 90.degree. apart about the central axis of the head. As the turret is rotated, a chip is transported by a nozzle, sequentially, from the pick-up station to a centering and testing station, a centering and orienting station, and a placement station. Located between the testing and orienting stations is a chip removal station for ejecting defective or inverted chips. Sensors are located at the adhesive and placement stations to detect defective P.C. boards so that they may be bypassed.

Abstract: A web sling, such as one of the endless, standard eye-and-eye or twisted eye type, is made from a web of woven synthetic organic polymeric plastic strands, such as those made from nylon, aramid or polyethylene terephthalate filaments, with a lamina of elastomeric material, such as polyurethane, vulcanized or cured onto a load contacting area thereof. The elastomeric material penetrates surface openings between the polymeric plastic strands but may be prevented from penetrating through the web, when so desired. To assist the elastomer in holding tightly to the strands there is applied to the web before vulcanizing a thin coating of a curable adhesive material, such as resorcinol-formaldehyde.

Abstract: Variable differential pressure control apparatus is used in a hydraulic system including a pump, an accumulator for receiving hydraulic fluid under pressure from the pump and for discharging hydraulic fluid to a work device, and an unloading valve in the circuit between the pump and the accumulator for regulating pressure of the fluid to the accumulator. The control apparatus is connected with the unloading valve for opening and closing the latter and is adjustable (1) for selectively setting the maximum fluid pressure to the accumulator and (2) for selectively setting the variation between the maximum pressure to the accumulator, at which pressure the unloading valve will open, and the minimum pressure to the accumulator at which pressure the unloading valve will close for recharging the accumulator.

Abstract: Variable differential pressure control apparatus is used in a hydraulic system including a pump, an accumulator for receiving hydraulic fluid under pressure from the pump and for discharging hydraulic fluid to a work device, and an unloading valve in the circuit between the pump and the accumulator for regulating pressure of the fluid to the accumulator. The control apparatus is connected with the unloading valve for opening and closing the latter and is adjustable (1) for selectively setting the maximum fluid pressure to the accumulator and (2) for selectively setting the variation between the maximum pressure to the accumulator, at which pressure the unloading valve will open, and the minimum pressure to the accumulator at which pressure the unloading valve will close for recharging the accumulator.

Abstract: A web sling, such as one of the endless, standard eye-and-eye or twisted eye type, is made from a web of woven synthetic organic polymeric plastic strands, such as those made from nylon or polyethylene terephthalate filaments, with a lamina of elastomeric material, such as chloroprene rubber, vulcanized or cured onto a load contacting surface thereof. The elastomer penetrates surface openings between the polymeric plastic strands but may be prevented from penetrating through the web, when so desired. To assist the elastomer in holding tightly to the strands there is applied to the web before vulcanization a thin coating of a curable adhesive material, such as resorcinol-formaldehyde.

Abstract: A composition of matter suitable for controlling allergens in fabrics comprising an aqueous film forming solution having a pH from between about 7 and 10 wherein the resulting film:A. has a minimum film forming temperature (MFT) below about 30.degree. C,b. contains polymers having a glass transition temperature (Tg) less than about 20.degree. C, andC. is hydrophobic, substantially non-nutritive, flexible, continuous, and autosoluble.Repetitive application of these coatings to certain fabrics in a household has been found to substantially reduce the activity of pyroglyphid mites and their debris with a corresponding reduction in the allergy potential of these fabrics.