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:
Mar. 13, 1984
Filed:
Aug. 07, 1981
Robert T Brooks, Kingwood, TX (US);
Baker International Corporation, Orange, CA (US);
Abstract
A test assembly is provided for incorporation within a blowout preventer stack above a subterranean well and provides inner and outer latching connections between upper and lower portions of a tubular conduit extendible to a production zone within the well. The test assembly has valve means in the lower conduit portion manipulatable between open and closed positions by a reciprocable actuator to control flow of fluid within the conduit. Retaining means are provided for each of the inner and outer latches to insure that such latches may not be disengaged when the valve means is in other than an open position. The retaining means are operable by either the application of fluid pressure or through mechanical manipulation of the tubing string to be shifted to a non-retaining position relative to both the inner and outer latches, thus permitting selective disconnection and reconnection of the upper and lower portions of the tubular conduit.