Abstract: Fouling in the scrubber section of a fluid coker unit is reduced by providing perforated baffles to improve the uniformity of the gas flow profile in the scrubber by reducing the gas velocity of the cyclone outlet gases in the scrubber section of the unit. These baffles are located with the objective of reducing the rotational component of the gas flow in the scrubber created by the alignment of the gas outlets of the cyclones. The baffles are preferably located in the shed section of the scrubber and comprise upstanding perforated plates located at the periphery of the scrubber section to disrupt high velocity gas jets in the region of the interior wall of the scrubber.

Abstract: A body support is provided utilizing a cushion formed in rectangular segments in which the segments alternately pivot to change pressure points on the surface of the user's skin. The body support can be used as a wheelchair seat cushion to prevent non-ambulatory patients from developing bedsores and other ailments. Electrical circuitry provided includes a timer to adjust the length of time between activation cycles thereby changing the pressure points at desired intervals.

Abstract: Fouling in the scrubber section of a fluid coker unit is reduced by providing baffles to improve the uniformity of the gas flow profile in the scrubber by reducing the gas velocity of the cyclone outlet gases in the scrubber section of the unit. These baffles are located with the objective of reducing the rotational component of the gas flow in the scrubber created by the alignment of the gas outlets of the cyclones. The baffles are preferably located in the shed section of the scrubber and comprise upstanding perforated plates located at the periphery of the scrubber section to disrupt high velocity gas jets in the region of the interior wall of the scrubber.

Abstract: A basketball goal is movable from a position wherein ball may be played to an out-of-play position wherein the ball may not be played. A locking mechanism, operable from the ground, maintains the goal in either the play or out-of-play positions.

Abstract: An automated electronic module inspection system having illumination sources that produce digitized gray scale images that are then analyzed by a computer. The inspection system illuminates the module including solder joints, components and printed circuit board using a sequence of illumination that produce visual images which are used to identify defects. The inspection system inspects for all defects as specified in MIL-STD-2000A (Section 4.4) by using both surface reflectance properties as well as topological properties of objects. The system comprises two video cameras. A positioning table aligns a module-under-test with the optical axis of each camera thereby enabling the same field-of-view to be observed under different lighting conditions. A dark field illumination associated with a first camera preferentially illuminates non-flat surfaces, but not vertical surfaces. A bright field illumination associated with a second camera preferentially illuminates relatively flat surfaces.

Abstract: A ratchet wrench comprising a housing defining a chamber, a drive mechanism, a pawl arm, and a handle. The drive mechanism is adapted to mount a wrench member and is positioned proximate the distal end of the housing. The drive mechanism is adapted to mount a wrench member and is positioned proximate the distal end of the housing. The drive mechanism includes a ratchet first wheel having a first set of ratchet teeth oriented in a first direction and a second ratchet wheel having a second set of ratchet teeth oriented in a direction opposite that of the first set of ratchet teeth. A handle is connected to the housing for pivotal movement and is spaced apart from the drive mechanism.

Abstract: A rolling mill for rolling strip in which one of its rolls serves both as a mill roll and as a gauge and/or profile measuring roll. The one roll has an outer sleeve for deflection under the rolling force and an internal stationary member for carrying a number of axially supported sensors for measuring the deflection of the sleeve and the rolling force to which the sleeve is subject, and control means for receiving signals from the sensors to produce a signal representative of the gauge and/or profile of the strip as it is being rolled in the roll bite of the mill.