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:
Apr. 21, 1987
Filed:
Sep. 16, 1985
Donald C Cameron, Tulsa, OK (US);
Dowell Schlumberger Incorporated, Tulsa, OK (US);
Abstract
The invention disclosed herein includes a reducer coupling, a positioner tool for connecting the coupling to a conduit section, and a nut for securing the positioner tool to the coupling. The reducer coupling is useful in various operations, such as some oil field operations in which it is used to connect a smaller conduit (delivery line) into a larger conduit (production casing). In practice, the positioner tool is secured to the reducer coupling and the coupling is moved into its hook-up position above the production casing, by attaching a rig to the positioner tool. The coupling can then be threaded into the casing by turning the positioner tool with a wrench, or similar tool.