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:
Apr. 28, 2020
Filed:
Jul. 17, 2017
Halliburton Energy Services, Inc., Houston, TX (US);
Krutibas Panda, The Woodlands, TX (US);
Neelesh Deolalikar, Houston, TX (US);
Larry Chambers, Kingwood, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A rotary valve with increased resistance to degradation that can include, a manifold with multiple flow paths, a rotary actuator rotatably mounted within the valve, and a valve seat that is fixedly attached to the manifold, with an end (or component) of the rotary actuator made from silicon carbide diamond (ScD) and the end having a first surface. The valve seat can have a second surface that sealingly engages the first surface. Manufacturing a rotary valve can include combining diamond particles in a press with silicon and applying temperature and pressure to produce a piece of ScD. Interposing a compound between the piece and a structure and brazing them by heating the compound between 700-1200 degrees Celsius. Forming ports and flow paths in the piece by machining the piece with an Electrical Discharge Machining (EDM) tool.