Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
June 1, 2010
Patent Application Number
11570464
Date Filed
July 8, 2004
Patent Primary Examiner
Patent abstract
An escalator step (12) includes a sound barrier material (40) covering over at least a portion of an inner surface (42) of a tread portion(30) and an inner surface (44) of a rise portion (32). In one example, the sound barrier material (40) comprises a sheet of vinyl. The sound barrier material (40) reduces noise radiation from the step (12) toward a cavity (26) within a passenger conveyor support structure (20) and reduces noise emanations from the cavity (26) through the steps (12). Several embodiments for securing the sound barrier material (40) in place are disclosed.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
