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:
Aug. 23, 2016
Filed:
Nov. 25, 2013
Flowserve Management Company, Irving, TX (US);
Daniel O. Arzuaga, Hermosa Beach, CA (US);
Jagadish Janardhan, Fullerton, CA (US);
Flowserve Management Company, Irving, TX (US);
Abstract
A mode shifting apparatus for a decoking tool. A diversion plate can be used to provide selective delivery of a pressurized decoking fluid to one or the other of nozzles in the tool. The mode shifting apparatus can be used to switch between a cutting mode of operation and a drilling mode of operation by rotation of the diversion plate, where a biasing force causes the diversion plate to unseat itself from an adjacent surface of the tool in order to reduce friction forces between them. The diversion plate may be temporarily unseated from an adjacent surface of the mode shifting apparatus prior to relative rotation between them such that both rotationally-induced forces and the need for relying upon a lubricating fluid to achieve damping between adjacent component surfaces may be reduced.