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:
Nov. 17, 1981
Filed:
Feb. 11, 1980
Applicant:
Inventor:
William A Valka, Spring, TX (US);
Assignee:
Armco Inc., Middletown, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166336 ; 166341 ; 285 93 ;
Abstract
Tool for giving remote indications, typically both a change in fluid pressure and a televised image, to check whether a device is in a desired position. The invention is particularly useful for checking whether a component, such as a pipe hanger, has been properly landed in an underwater well installation.