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:
Feb. 26, 2013
Filed:
Feb. 17, 2004
Carl Q. Howard, Collinswood, AU;
Andreas Stuffel, Bückeburg, DE;
Larry W. Hardin, East Hartford, CT (US);
Goldino S. Alves, South Windsor, CT (US);
Carl Q. Howard, Collinswood, AU;
Andreas Stuffel, Bückeburg, DE;
Larry W. Hardin, East Hartford, CT (US);
Goldino S. Alves, South Windsor, CT (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
A device () for reducing noise levels in passenger conveyor systems () at least partially obstructs spacing () at the interface between two steps () to allow for relative movement between one step and the next. A sound transmission reducing member () at least partially obstructs a sound pathway that includes the spacing to reduce the transmission of noise through the spacing. The sound transmission reducing member in one example is a barrier that partially blocks the interface, while in another, it extends completely across the interface. Additionally, sound absorbing material () may be secured to the underside of the steps in order to further reduce sound transmission toward the passengers and individuals near the conveyer.