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. 05, 1985
Filed:
Jun. 16, 1981
Applicant:
Inventor:
Hiram E Lindsey, Jr, Midland, TX (US);
Assignee:
MWL Tool and Supply Company, Midland, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166377 ; 166208 ; 166212 ; 166217 ; 166382 ;
Abstract
Apparatus and method of positioning and seating a retrievable landing assembly within a packer bore receptacle in a well bore. Latching measure provided for releasably securing a landing assembly in the packer bore receptacle. The latching means which are normally in a retracted position are actuated by hydraulic pressure means to lock the landing assembly within the packer bore receptacle. The retrievable landing assembly can be retrieved with a spear mechanism by shearing a release mechanism. The retrievable landing assembly is hydraulically set and mechanically retrieved.