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:
Oct. 25, 1983
Filed:
Apr. 15, 1981
Applicant:
Inventor:
John L Kettle, Vernon, CT (US);
Assignee:
Otis Elevator Company, Farmington, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B / ;
U.S. Cl.
CPC ...
198328 ;
Abstract
A plurality of stairs are interconnected and propelled in a racetrack pattern between two floors of a building. The stairs are guided on rails and provide moving staircase sections for passengers to stand on for transport between the floors. The stairs move flatly in line with each other beneath the floor level in going from one of these staircase sections to the other. The stairs are interconnected and mounted on the rails in such a way that they can rotate relative to each other so that they can turn in going from one staircase section to the other.