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:
Jul. 06, 1999
Filed:
Aug. 29, 1997
Applicant:
Inventor:
Victor Phillips, Luther, OK (US);
Assignee:
M-I Drilling Fluids L.L.C., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B04B / ; B04B / ;
U.S. Cl.
CPC ...
494-7 ; 494 37 ; 494 84 ;
Abstract
A centrifuge system and method according to which a conveyor is disposed in the bowl, and electrical motors are provided for rotating the bowl and the conveyor at different speeds. A DC bus is provided to store electrical energy which is supplied to the conveyor motor to rotate the conveyor if a brownout condition occurs. The bowl is braked in response to the brownout condition to generate electrical energy which is transferred to, and stored by, the DC bus for supplying to the conveyor motor.