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:
Oct. 14, 1997
Filed:
Jun. 23, 1995
Applicant:
Inventors:
James P Berneski, Jr, Warrington, PA (US);
Henry E Brandenberger, Hatfield, PA (US);
Eugene E Cunningham, Perkasie, PA (US);
Assignee:
EST Group, Inc., Harleysville, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138 89 ; 138 90 ; 138 / ; 73 498 ;
Abstract
An outer diameter plug is provided for sealing the open end of a pipe. The plug is capable of being reused on a range of pipe outer diameter tolerances and of providing effective fluid-tight sealing over a range of internal pressures. The plug is particularly suited for use in pressure testing pipes by means of pressure fluids admitted to the pipes through the plug.