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:
Jan. 08, 2013
Filed:
Sep. 29, 2009
Applicants:
Theodore Arthur Stocker, Jr., Florissant, MO (US);
Christopher Andrew Edmonds, St. Charles, MO (US);
Inventors:
Theodore Arthur Stocker, Jr., Florissant, MO (US);
Christopher Andrew Edmonds, St. Charles, MO (US);
Assignee:
American Railcar Industries, Inc., St. Charles, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 17/04 (2006.01); B65D 90/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
A vacuum relief valve is provided. The vacuum relief valve includes a body having a side wall, and a stem that is movable with respect to the body between an open position and a closed position. The stem is biased in the closed position. The vacuum relief valve further includes a first sight glass coupled to the body and configured to enable visual inspection of a sealing area of the vacuum relief valve. The sealing area includes at least a portion of said stem.