The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 1993
Filed:
Jun. 11, 1991
Philip J Jenkins, Pearland, TX (US);
Western Atlas International, Inc., Houston, TX (US);
Abstract
A control valve for use in geophysical surveying is disclosed. The valve contains a housing having a through bore intersecting with a fluid path. The fluid passes from an input port to an output port. A seat having recess thereof is placed in the fluid path in the through bore. A poppet assembly is attached to the through bore at the end opposite to the seat. The poppet assembly contains a poppet one end of which is adapted to match the recess and moveable in opposite directions by a motor. A decoder is coupled to the motor for causing the motor to turn in the desired direction. When the motor is turned in one direction, the poppet moves toward the seat and completely closes off the fluid path between the input and output ports. To open the valve, the motor is moved in the opposite directions to move the poppet away from the seat until the fluid path is open.