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:
May. 08, 2018
Filed:
Nov. 10, 2015
Caterpillar Inc., Peoria, IL (US);
Robert J. Madera, Lemont, IL (US);
John M. Teter, North Aurora, IL (US);
Dennis D. Wetterich, Newark, IL (US);
Timothy N. Zier, Oswego, IL (US);
Terril J. Johnson, Washington, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A guardrail for a walkway of a machine includes a vertical channel post having an end wall and side walls forming an open channel. The vertical channel post may taper in the side-to-side and fore-aft directions as the post extends bottom to top. The vertical channel post may also transition from a generally rectangular cross-section near the bottom to a more rounded cross-section at the top. Curved top notches at the top of the vertical channel post allow a top rail of the guardrail to rest on top of the post and be attached. Intermediate notches along vertical edges of the side walls receive an intermediate rail of the guardrail. The top notches and the intermediate notches are arranged so that the top rail and the intermediate rail may be vertically aligned and parallel to each other and to the walkway enclosed by the guardrail.