Andrew Jefferson McPhate
Engineering at Gloria Dr, Baton Rouge, LA
License number
Louisiana PE.0009415
Issued Date
May 5, 1964
Expiration Date
Mar 31, 2017
Category
Civil Engineer
Type
Mechanical Engineer
Address
Address
565 Gloria Dr, Baton Rouge, LA 70819
Professional information
Downhole Roller Vane Motor
US Patent:
6499976, Dec 31, 2002
Filed:
Aug 17, 2001
Appl. No.:
09/933553
Inventors:
Andrew J. McPhate - Baton Rouge LA 70808
Matthew McPhate - Baton Rouge LA 70808
Douglas R. Fleming - New Orleans LA 70124
Matthew McPhate - Baton Rouge LA 70808
Douglas R. Fleming - New Orleans LA 70124
International Classification:
F03C 222
US Classification:
418 13, 418188, 418225
Abstract:
A roller vane motor having a housing and a stator positioned on an inside surface of the housing. The stator has an internal wall with an inlet port and an outlet port and the portion of this internal wall at the outlet port tapers open at an angle of less than 45 degrees relative to a tangent of the internal wall. A rotor assembly is positioned within the stator. The rotor assembly includes: i) a rotor shaft, ii) a plurality of flutes extending from the rotor shaft; and iii) cylindrical rollers positioned between said flutes.