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:
Nov. 14, 1989
Filed:
Feb. 03, 1989
Coy D Osburn, Tulsa, OK (US);
James B Sullivan, Tulsa, OK (US);
TDW Delaware, Inc., Wilmington, DE (US);
Abstract
For use in a hot tapping system having a plug receiving flange providing communication into the interior of a pipeline, a completion machine for attachment to the flange providing means to install or retrieve a plug from within the flange, the machine being formed of an elongated cylindrical housing having a flange portion to removably sealably engage the plug receiving flange and the housing forming a hydraulic cylinder, an elongated tubular control bar reciprocally and non-rotatably received within the housing, a piston within the cylinder secured to the control bar by which the control bar is hydraulically displaced, and a rotatable retention rod telescopically received within the control bar and having a threaded end to attach to a plug, the retention rod being secured to a plug for placement of the plug into a flange or the removal therefrom.