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:
Jun. 27, 1989
Filed:
Jan. 25, 1988
John L Baugh, Houston, TX (US);
David L Nevels, The Woodlands, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
An apparatus and method are shown for cementing a liner in a well bore. An operating string of smaller diameter is inserted within the internal diameter of the liner. A setting tool initially connects the operating string within the liner and includes a plug carrying body at the lowermost extent. A top plug is releasably supported from the plug carrying body and a longitudinally spaced bottom plug is releasably supported from the top plug. A collet latch secures the top plug to the plug carrying body and a collet latch secures the bottom plug to the top plug. A shiftable sleeve positively locks the top plug to the plug carrying body until the collet latch securing the bottom plug is released.