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. 05, 2022
Filed:
Mar. 09, 2020
Otis Elevator Company, Farmington, CT (US);
Daniel B. Davis, III, Middlefield, CT (US);
Robert K. Williams, Tariffville, CT (US);
John Eschenbrenner, Canton, CT (US);
Gregory M. O'Seep, Simsbury, CT (US);
James L. Hubbard, Kensington, CT (US);
Martin J. Hardesty, West Hartford, CT (US);
Bruce P. Swaybill, Farmington, CT (US);
Jesse R. Richter, West Hartford, CT (US);
Gary P. Mendrala, West Springfield, MA (US);
Patricia Derwinski, Farmington, CT (US);
Christopher H. Koenig, Granby, CT (US);
OTIS ELEVATOR COMPANY, Farmington, CT (US);
Abstract
A method is disclosed of retrofitting an elevator machine with primary and secondary braking, the machine being disposed on a machine support frame in an elevator machine room, and engaging one or more ropes for providing selective movement of an elevator car disposed in an elevator shaft, the machine having a drive sheave including a cylindrical brake drum, and brake components including dual brake arms; the method including: removing the brake components; affixing flanged disc segments about the drum and interlocking the flanged disc segments to form a brake rotor; and mounting respective brake calipers to frame mounts for providing primary and secondary braking to the elevator machine.