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:
Apr. 06, 2021
Filed:
Apr. 27, 2018
Emeh, Inc., Lebanon, NJ (US);
Bryan I. Charles, Muncy, PA (US);
Roger W. Barr, Williamsport, PA (US);
Kevin Wayne Smith, Hughesville, PA (US);
Anthony J. Peachey, Muncy, PA (US);
Timothy A. Fisher, Montoursville, PA (US);
Harold Dale Mathias, Watsontown, PA (US);
Justin Eugene Moon, Montgomery, PA (US);
Gabriel Patrick Blasi, Montgomery, PA (US);
Robert James Belvin, Williamsport, PA (US);
Charles S. Sawyer, Mifflinburg, PA (US);
EMEH, INC., Lebanon, NJ (US);
Abstract
The present disclosure relates to stair systems and methods for allowing stair movement between building levels while maintaining the structural integrity of the stair system for safe egress passage. The systems and methods of the present disclosure allow for independent movement of the surrounding building walls, landings, floor slabs, and/or any other portion of the surrounding building structure or stair system. The embodiments of the present disclosure are suitable for use in both new constructions as well as in existing constructions for retrofit applications to allow for movement between levels, landings, or within stairwell structures. The present disclosure reduces stair damage during building movement whether it is from wind, thermal, or seismic activity, and/or any other type of suitable force or experience, as the present disclosure allows for directional movement, or a combination thereof, including tension and compression, lateral, or vertical movement.