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, 1981
Filed:
Sep. 21, 1979
Pierre C Escaron, Houston, TX (US);
Joachim A Hoppe, Spring, TX (US);
Schlumberger Technology Corporation, Houston, TX (US);
Abstract
An apparatus for measuring the downhole force applied to a cable suspending a well-logging apparatus in a borehole according to the invention is connected between the cable and the well-logging apparatus. An elongated sensitive element has a strain gauge integrally bonded upon it for measuring the downhole force, and the strain gauge includes at least one sputter deposited strain gauge. The apparatus is provided with elements for compensating for pressure and temperature changes in the borehole, wherein an envelope is sealingly disposed about the strain gauge means and is formed to allow the sides of the envelope to deflect inwardly and outwardly from the strain gauge in response to changes in pressure and temperature in the borehole. The envelope is filled with oil.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile