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. 31, 1977
Filed:
Oct. 18, 1974
Applicant:
Inventor:
John Doise Jeter, Iowa Park, TX (US);
Assignee:
Texas Dynamatics, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
340 / ; 340 / ;
Abstract
A device attached to a pipe string extending from the earth surface to subsurface locations, primarily for earth boring activities to transmit information from the subsurface location to the earth surface. The readings of subsurface sensors are converted to a message comprising a combination of pressure pulses in fluid in the pipe string and brief stress changes in the wall material of the pipe string detectable in the pipe string at the earth surface, the combination identifiable as representing at least part of the message and series of pulses collectively representing the content of the message being transmitted.