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. 25, 1986
Filed:
Nov. 05, 1984
Wayne O Rosenthal, Fort Worth, TX (US);
Pengo Industries, Inc., Fort Worth, TX (US);
Abstract
In the field of well drilling, completion and production in the petroleum industry a particular type of retrievable packer is commonly set by the application of 'pull-push' force which may be derived from a conventional electric wireline setting tool of the pressurized type. The present invention provides a packer retrieving tool that is capable of effective use in retrieving the abovementioned type packer through use of 'pull-push' forces derived from a conventional electric wireline setting tool. The retrieving tool of the present invention additionally includes effective provisions to be utilized in the event of malfunction of the electric wireline setting tool.