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:
Jul. 26, 1988
Filed:
Feb. 25, 1987
Applicant:
Inventors:
Lonnie J Smith, Allen, TX (US);
Dennis R Wood, Plano, TX (US);
Assignee:
Atlantic Richfield Company, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ; H02G / ;
U.S. Cl.
CPC ...
166 651 ; 166325 ; 439194 ;
Abstract
A connector for attaching a downhole tool to the end of a tubing string insertable in a wellbore includes a one-way valve to permit flow of fluids from the tubing string into the wellbore but to prevent the flow of fluids in the opposite direction. An electrical cable extends through central passages formed in the one-way valve and a frangible coupling which will separate the connector from the tool if the tool becomes stuck in the wellbore.