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:
Dec. 09, 1997
Filed:
Nov. 29, 1995
Samuel C Wan, Simsbury, CT (US);
Frederick H Barker, Bristol, CT (US);
Bruce A Powell, Canton, CT (US);
Gilbert W Wierschke, West Simsbury, CT (US);
Paul Bennett, Waterbury, CT (US);
Anthony Cooney, Unionville, CT (US);
Richard C McCarthy, Simsbury, CT (US);
Joseph Bittar, Avon, CT (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
A safety gate (24) is slidable vertically from an upper position at an elevator cab landing (22) where it obstructs movement of the elevator cab (20) into a hoistway, and a lower position that permits cab travel between a car frame (29) and the landing. An actuator (42) normally urges the gate upwardly; the actuator is moved by a cam assembly (36) on an approaching elevator car frame so as to slide the gate (24) downward, out of the way of cab motion.