Abstract: An apparatus for elevating and lowering a freestanding seating structure, such as a house chair, recliner, or sofa. The apparatus is comprised of a base, an elevator assembly, a power assembly connected between the base and the elevator assembly, and a control assembly. The elevator assembly releasably receives, supports, elevates and lowers the seating structure. The power assembly provides power and supportingly moves the elevator assembly. The control assembly controls the power assembly and the position of the elevator assembly relative to the base. The invention also includes riser arms which are pivotally connected between the base and the elevator assembly for structurally supporting and stabilizing the elevator assembly.

Abstract: Method and apparatus for ultrasonic testing of tubular goods wherein plural circumferential arrays are utilized for continuous testing for specifically oriented defects. The apparatus utilizes plural ultrasonic energy transducers disposed in circumferential array for transmitting and receiving ultrasonic energy toward a central bore area. Further support structure serves to dispose the tubular goods in the central bore area for movement relative to said plural ultrasonic energy transducers while fluid enclosure means, also including a central bore area as defined by a slidable seal, maintains a fluid environment between each of the plural ultrasonic energy transducers and the tubular goods. The plural ultrasonic transducers are then repetitively energized and received energy variations due to discontinuities in said elongate goods are then output as an indication of quality.