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:
May. 11, 2004
Filed:
Jan. 08, 2002
Larry R. Russell, Houston, TX (US);
Other;
Abstract
An improved plug device for sealing an internal tubular passageway in a predetermined location against pressure and flow applied from one side. The plug is selectively inserted and retrieved from the tubular passageway using an installation tool . The plug has an elastomeric seal and multiple latch dogs that reciprocate in an axial direction to engage or not engage the tubular passageway. An elastomeric seal of the plug is manipulated to cause it to recess during the installation and retrieval of the plug device to minimize scuffing the seal . Multiple latch dogs housed in the plug are radially moved outward to engage a prepared internal groove in the tubular passageway, then the elastomeric seal is relaxed to bias against the interior of the bore of the tubular passageway. The plug is easily installed and removed by robots or remote manipulators.