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:
Jun. 01, 2010
Filed:
Jul. 08, 2004
Vijay Jayachandran, Vernon, CT (US);
Goldino Alves, South Windsor, CT (US);
Dave Jarvis, West Hartford, CT (US);
Fred Spielman, Somers, CT (US);
Vijay Jayachandran, Vernon, CT (US);
Goldino Alves, South Windsor, CT (US);
Dave Jarvis, West Hartford, CT (US);
Fred Spielman, Somers, CT (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
An escalator step () includes a sound barrier material () covering over at least a portion of an inner surface () of a tread portion() and an inner surface () of a rise portion (). In one example, the sound barrier material () comprises a sheet of vinyl. The sound barrier material () reduces noise radiation from the step () toward a cavity () within a passenger conveyor support structure () and reduces noise emanations from the cavity () through the steps (). Several embodiments for securing the sound barrier material () in place are disclosed.