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:
Aug. 03, 2010
Filed:
Jan. 09, 2009
Tony R. Garrison, Bixby, OK (US);
Gregory L. Puckett, Broken Arrow, OK (US);
Tony R. Garrison, Bixby, OK (US);
Gregory L. Puckett, Broken Arrow, OK (US);
TDW Delaware Inc., Wilmington, DE (US);
Abstract
A plugging device for double blocking a section of pipeline or piping and method for its use includes a first and second sealing element and at least one cylinder that is extendable along an axial direction of the pipe between a retracted first position and an extended second position. A means for actuating the cylinder, such as a fluid power source, is provided. When the cylinder is in the extended second position, the sealing element sealably engages an opposing cut end of the pipe. The sealing element is an elastomeric sealing element and may be cup-shaped, convex-shaped, or cork-shaped.