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:
Oct. 17, 1978
Filed:
Apr. 19, 1977
Applicant:
Inventor:
Raymond Earl Roesner, Houston, TX (US);
Assignee:
Dresser Industries, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166 / ; 166113 ;
Abstract
A wellbore logging instrument is disclosed of the type having a density pad maintained in close proximity to the tool body, and a decentralizing arm pivotally mounted on the body and arranged to swing outward against the borehole to move the tool body and density pad against the opposite borehole wall. The apparatus includes a linkage assembly to provide a slight extension of the density pad at any selected time in the borehole.