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:
Jan. 16, 2018
Filed:
Apr. 06, 2015
Westinghouse Air Brake Technologies Corporation, Wilmerding, PA (US);
Timothy R. Schmidt, Wheeling, IL (US);
Westinghouse Air Brake Technologies Corporation, Wilmerding, PA (US);
Abstract
A dual manual disengagement mechanism for an electric transit door operator having a disengagement shaft extending from the operator comprises a first pinion lever () secured to the disengagement shaft, a second pinion lever () intermeshed with the first pinion gear, a first cable () connected to the first pinion-lever via a clevis end () having an elongate slot, a second cable () connected to the second pinion lever via a clevis end () having an elongate slot. The length of the slots in the clevis ends is such that the pulling of one cable to rotate the disengagement shaft will not cause a tug on the other cable.