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. 22, 2007
Filed:
Mar. 11, 2005
Matthew L. Mogas, Houston, TX (US);
John B. Williams, Jr., Houston, TX (US);
Matthew L. Mogas, Houston, TX (US);
John B. Williams, Jr., Houston, TX (US);
Mogas, Inc., Houston, TX (US);
Abstract
A ball valve apparatusfor clearing an obstruction in a conduit is disclosed. The ball valve apparatusincorporates a wear resistant choke tubein the downstream openingB of the ball. The choke tubecan be two to four times smaller than the openingA on the upstream side of the ball. Removal of catalyst through the choke tube results in lower velocity of the flow through the bore of the valve, thereby reducing wear and erosion. In normal operation in an FCC unit, catalyst is extracted from the system through the choke tube. When the conduit becomes plugged, the ball valve apparatuscan be cycled into a fully opened position, thereby creating a high flow rate of fluid through the conduit, removing any existing obstructions.