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:
May. 26, 1992
Filed:
Apr. 05, 1991
Applicant:
Inventor:
Edward L Olinger, Fritch, TX (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166241 ; 175325 ;
Abstract
A rod guide or centralizer for a reciprocating rod string which presents minimal resistance to the axial flow of well fluids. The guide offers minimum cross section and turbulence without loss of erodible volume. The guide may be molded on or fitted with an axial slot for field installation. The guide is very long in relation to its diameter to facilitate laminar flow and a low drag coefficient.