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:
Jan. 24, 1978
Filed:
Mar. 15, 1976
Applicant:
Inventor:
Billy W McArthur, Wallis, TX (US);
Assignee:
Sperry-Sun, Inc., Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C / ; G01L / ; H01L / ;
U.S. Cl.
CPC ...
33312 ; 33366 ; 338-2 ; 338 46 ;
Abstract
Information as to borehole inclination is provided by a pendulum in combination with an elastomeric material whose resistance varies with compression. The pendulum is arranged in a housing to compress the elastomer whenever the housing deviates from the vertical, or other predetermined attitude. The change in resistance is measured by a circuit including an ohmmeter and the pendulum and elastomer as conductive elements.