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. 30, 2014
Filed:
Sep. 13, 2012
Robert N. Madderom, Mokena, IL (US);
Harold T. Ruggles, Merrillville, IN (US);
Stefan T. Pendrick, Hammond, IL (US);
Brandon R. Huynh, Dyer, IN (US);
Robert N. Madderom, Mokena, IL (US);
Harold T. Ruggles, Merrillville, IN (US);
Stefan T. Pendrick, Hammond, IL (US);
Brandon R. Huynh, Dyer, IN (US);
Holland, L.P., Crete, IL (US);
Abstract
A rail cant measurement tool and associated methods enable users to measure rail cant. The measurement tool comprises a reference assembly, and a cant angle measurement assembly. The reference assembly comprises a track plane reference bar. The cant angle measurement assembly comprises a web-engaging arm assembly, a spring-biased lock-release mechanism, a rail cant indicator, and a rail cant linear adjustment mechanism. The web-engaging arm assembly comprises pivot arms and web rollers. The pivot arms each comprise upper arm ends and lower arm ends. The upper arm ends are attached to the lock-release mechanism. The reference bar engages opposed rails and the cant angle measurement assembly engages a select rail of the opposed rails. The rail cant indicator indicates rail cant information as determined from the track reference plane and the running surface of the select rail.