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:
Sep. 15, 1998
Filed:
Dec. 19, 1995
Otis Elevator Company, Farmington, CT (US);
Abstract
A roller assembly for a passenger conveyor step chain includes a rolling contact bearing disposed between a bushing and an axle of the roller assembly. The rolling contact bearing improves wear resistance and load carrying capabilities of the roller assembly and step chain. In a particular embodiment, the roller assembly includes a pair of seals and a lubrication chamber. The seals define a sealed region encompassing the rolling contact bearing and lubrication chamber. The seals prevent lubrication from leaking and debris from penetrating into the sealed region.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile