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:
Sep. 20, 2022
Filed:
Mar. 04, 2021
Applicant:
Est Group, Inc., Hatfield, PA (US);
Inventors:
Danko Kobziar, Lansdale, PA (US);
Ka'ren Sarkissian, Langhorne, PA (US);
Andrew Hall, Ottsville, PA (US);
Alex Kotlyar, Jamison, PA (US);
Assignee:
EST GROUP, INC., Hatfield, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 55/11 (2006.01); F16L 55/13 (2006.01);
U.S. Cl.
CPC ...
F16L 55/1141 (2013.01); F16L 55/13 (2013.01);
Abstract
A pin and ring-type plug assembly for plugging a heat exchanger tube to provide a leak resistant seal is provided. The plug assembly is designed such that it can be used to form a high-pressure seal relative to a wide of range of tube inner diameters. The angle of taper of the pin varies along a length of the pin such that the angle of taper is steepest at or adjacent a nose section of the pin and is shallowest at or adjacent an end section of the pin.