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:
Jun. 05, 2001
Filed:
Sep. 17, 1998
Marvin E. Beasley, Houston, TX (US);
Tyco Flow Control, Inc., Houston, TX (US);
Abstract
A switch valve,is provided with an upper body,having a plurality of outlet ports,A,,B, and,C and a lower body housing,with inlet port,. The switch valve includes a ball member,which is rotatable within the switch valve body,for selective fluid communication between the inlet port,and the selected one of the plurality of outlet ports. The ball,is rotated by a stem,, which may be powered by an actuator unit. The upper body,includes a substantially dome-shaped seating surface,for sealing engagement with the outer surface,of the ball. The biasing member,biases the ball radially in a direction opposite the ball inlet port,to obtain the desired sealing engagement. The biasing member is preferably a Belleville spring,having a single wrap design.