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:
Jul. 15, 2014
Filed:
Jul. 02, 2009
Applicants:
Seth W. Mackay-smith, Coatesville, PA (US);
C. Dean Mcgowan, Malvern, PA (US);
Inventors:
Seth W. Mackay-Smith, Coatesville, PA (US);
C. Dean McGowan, Malvern, PA (US);
Assignee:
Gasbreaker Inc., Malvern, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 55/12 (2006.01); F16L 55/128 (2006.01); F16K 17/30 (2006.01);
U.S. Cl.
CPC ...
F16K 17/30 (2013.01);
Abstract
An excess flow valve (EFV) for installation in a service line of natural gas distribution system serving an existing structure. The EFV has a cylindrical housing having a first length and a second length and a through hole therethrough for passage of gas. The EFV 11 engaged in the through hole of the first length and the second length has an expandable wall which can be expanded and fixed in said service line.