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. 12, 2016
Filed:
Nov. 03, 2011
Carl David Hardison, Iii, Preston, IA (US);
David Swift, Dubuque, IA (US);
Ryan Pfaff, Dubuque, IA (US);
Ryan P. Beggs, Dubuque, IA (US);
Carl David Hardison, III, Preston, IA (US);
David Swift, Dubuque, IA (US);
Ryan Pfaff, Dubuque, IA (US);
Ryan P. Beggs, Dubuque, IA (US);
RITE-HITE HOLDING CORPORATION, Milwaukee, WI (US);
Abstract
Powered safety curtains are disclosed herein. An example barrier includes a motorized drive unit, and a curtain. The curtain includes a leading edge. The leading edge of the curtain is selectively moveable to a closed position and to an open position. The example barrier also includes a guide plate carried by the curtain and extending into a track and a nonferrous guide member attached to the guide plate. The example barrier also includes a first safety device including a first wireless portion and a first electrical portion. The first wireless portion is attached to the nonferrous guide member. The first electrical portion is in a first activated state when the first wireless portion is in proximity with the first electrical portion. The first wireless portion is in a first deactivated state when the first wireless portion is remote relative to the first electrical portion.