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:
Sep. 22, 1998
Filed:
Feb. 24, 1997
Delwin E Cobb, Houston, TX (US);
Roy S Arterbury, Houston, TX (US);
Other;
Abstract
A separation device or desander (18) is positioned in a bore hole for separation of solid particles from well fluids and includes outer and inner concentric members (20 and 22) defining an annulus (30) therebetween. A spiral guide (32) is positioned in annulus (30) between the concentric tubular members (20, 22). A wear structure comprising the present invention includes a flat (38) in the outer wall (27) of the outer tubular member (20) to provide a reduced thickness wall portion thereat. Upon wear from abrasive solid particles, and opening (40) is formed at the reduced thickness cutaway portion defined by flat (38). A sleeve (46) may be mounted within the outer tubular member (20) below the inner tubular member (22).