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:
Jul. 24, 2001
Filed:
Feb. 25, 1999
David J. Johnston, Portland, OR (US);
Michael K. Smith, Beaverton, OR (US);
Nasser Zamani, Lake Oswego, OR (US);
William G. Massey, III, Portland, OR (US);
Luis A. Novoa, Portland, OR (US);
Michael von Mayenburg, Lake Oswego, OR (US);
Charles H. Blakewood, Jr., Vancouver, WA (US);
Paul M. Menig, Tigard, OR (US);
Paul J. Delurey, Beaverton, OR (US);
Freightliner LLC, Portland, OR (US);
Abstract
A stairway assembly is pivoted between deployed and stowed positions. The stairway in one form includes a sliding support from which the stairway is suspended at a location spaced from a stairway pivot. A link, which may be adjustable in length, couples the coupler to the stairway. A snubber is provided to limit vibration of the stairway when stowed. An actuator, which may comprise an electric motor, is positioned above and overlies a portion of a platform of the stairway. Extension and retraction of the actuator pivots the stairway between stowed and deployed positions.