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. 15, 1986
Filed:
Oct. 29, 1984
William R Caputo, Wyckoff, NJ (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
Transportation apparatus, such as escalators and moving walks, having controlled stopping characteristics. Deceleration is directly regulated via a deceleration servo loop which provides a current reference signal for an inner current loop. Brake current limiting prior to the controlled stop, as well as mechanically limiting the maximum brake gap, results in faster transient response, and a more linear braking torque versus brake current characteristics. Multiple drive units operate from a common deceleration reference signal, while having independent servo loops each operating from a 'local' deceleration signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile