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:
Feb. 14, 1978
Filed:
May. 03, 1976
Applicant:
Inventor:
William H Parker, Hurst, TX (US);
Assignee:
Del Norte Technology, Inc., Euless, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166 / ; 166 72 ; 340 / ;
Abstract
An acoustically controlled system includes means for transmitting any of several different forms of sonic energy signals through the walls of a tubing extending down into a gas or oil well. There, any of several functions may be performed, such as a control of a disaster valve located at the lower end of the tubing. Depending upon the function selected, the valve may hold itself open irrespective of the continuity of the sonic signal, or may slam shut if the sonic energy ends. Preferably, the selection control depends upon the pulse repetition rate of the sonic energy pulses.