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. 04, 2017
Filed:
May. 22, 2015
Applicant:
Gunderson Llc, Portland, OR (US);
Inventors:
Gregory J. Saxton, Portland, OR (US);
Bradley J. Thomas, Beaverton, OR (US);
Brian J. Jurvakainen, Clatskanie, OR (US);
Assignee:
Gunderson LLC, Portland, OR (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B61D 5/00 (2006.01); F16K 35/02 (2006.01);
U.S. Cl.
CPC ...
B61D 5/008 (2013.01); F16K 35/02 (2013.01); F16K 35/025 (2013.01); Y10T 137/6877 (2015.04);
Abstract
An operating mechanism for a bottom valve for a cargo tank of a railroad tank car, in which a valve operating lever is normally disconnected from a valve operating shaft and a valve operating shaft assembly includes a weak-link connector to prevent inadvertent opening of the bottom valve in case of derailment of the tank car.