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:
Apr. 23, 1991
Filed:
Jul. 13, 1989
Applicant:
Inventors:
Richard C Barrios, Louisville, KY (US);
Philip A Hayes, Louisville, KY (US);
Assignee:
Modern Industries, Inc., Louisville, KY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B61L / ; E04C / ; E04H / ;
U.S. Cl.
CPC ...
14-7 ; 52 28 ; 52 73 ; 52638 ; 52693 ; 246477 ;
Abstract
A triangular truss walkout cantilever for displaying railroad warning signals above the individual lanes of a road or highway at a railroad grade crossing is disclosed. The cantilever includes a cantilever arm attached to a vertical roadside mast. The cantilever arm has three parallel truss members that form a triangular cross section. These members are reinforced by a system of struts and braces. A catwalk allows a worker access to the warning signals for maintenance and no braces interfere with such access.