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. 05, 1983
Filed:
Oct. 27, 1980
Samuel F Baker, Conroe, TX (US);
Ronald D Arnold, Missouri City, TX (US);
Texas Iron Works, Inc., Houston, TX (US);
Abstract
A liner and a hydraulic liner hanger setting arrangement for setting the liner in a well bore casing includes a setting tool having a tubular mandrel connected in a pipe string to extend through the hydraulic setting arrangement with the liner forming an outer housing surrounding the liner and to form a longitudinally extending annular recess therebetween with one end of the recess exposed to the well bore. Longitudinally extending piston means are sealably engaged in the recess with the piston means having a cone shaped end. Slips are releasably secured to the liner and means are provided to retain and to lock the piston means against premature retraction into the recess. A port in the housing communicates fluid pressure from the mandrel to the housing recess to move said piston means in the recess and engage the cone shaped end thereof with said slips to urge them into engagement with the well bore casing and thus secure the liner in position. Upon lowering the setting tool after the slips engage the casing, seal means on the piston means span the housing port and prevent communication to the recess from the port means when the piston is retracted back into the recess.