Other

Henry Guillory

J Patrick Thompson

Alfred J Thomas, Iii

A system for washing, cleaning, and chemically treating sections of drill pipe being tripped out of the hole, which includes an elongated cylindrical housing having a central opening therethrough, the housing comprised of a first and second semi-circular sections, the sections movable between open and closed positions by a hinged joint along one edge, and in the closed position maintained closed via a locking member along the second edge. Within the housing there is further included upper and lower wipers, which comprise circular rubberized material having bores along their central axes, the bores being substantially the width of a section of drill pipe to clean the wall of the pipe. Each wiper would be spaced apart from one another and housed within an annular channel along the inner surface of the housing so that the wipers would be stationary within the housing as the housing is placed in the closed position. There is provided spray nozzles for providing pressurized spray of water and anti-corrosive compound for coating the pipe wall.

Pipe washer and chemical applicator system

Apparatus is disclosed for cyclically communicating an audio electrical signal to a plurality of sound-reproducing elements in sequential, serial fashion. One embodiment includes a number of make-or-break type of electrical switches, one for each sound-reproducing element, operably situated about and in engagement with the periphery of a rotating cam element. Each switch has an input terminal, to which is applied the audio electrical signal, and an output terminal that is coupled to the sound-reproducing element associated therewith. Rotation of the cam element sequentially makes and breaks each switch to alternately establish and interrupt communication of the audio electrical signal to the associated sound-reproducing element. Another embodiment includes a digital counter operably coupled to a number of transistor switches that are selectively caused to conduct. Transistor switch conduction interconnects an input terminal receiving the audio electrical signal to the sound-reproducing element associated with the transistor switch.

Sound distributing system improvements

An audio distributor interconnects a source of at least one electrical audio signal and a plurality of sound-producing speakers to sequentially apply the signal to each speaker in serial fashion. The distributor includes a support member having mounted on an outer surface thereof a number of interconnected conductive segments, each segment corresponding to one of the speakers. A motor rotates the support member, moving each conductive segment into contact with an electrical pickup to establish electrical communication between the segment associated with each speaker and the audio signal source. The conductive segments and their associated electrical pickups are arranged so that rotation of the support member sequentially places the conductive segments in position to cause the audio signal to be applied to at least one speaker at a time in serial fashion. With the speakers arranged to define the perimeter of a listening area mutually exclusive, serial application of the audio signal to the speakers simulates movement and spatial distribution of the sound about the listening area.

Growing community of inventors

San Francisco, CA, United States of America

Henry Guillory