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. 21, 2015
Filed:
Dec. 10, 2009
Rex Mcdonald, London, KY (US);
Hanners Gevedon, Mt. Vernon, KY (US);
Rex McDonald, London, KY (US);
Hanners Gevedon, Mt. Vernon, KY (US);
Sumter Corporation, London, KY (US);
Abstract
Systems and methods are provided for a modular shelter that is suited for use as a safety chamber in an underground working environment. The shelter includes at least two wall units connected along a substantially sealed seam, a base unit that extends substantially throughout a floor plan of the shelter, and a roll cage that surrounds an outer extent of the shelter above the floor plan. The shelter may be configured to maintain a pressurized state in a closed condition. Each of the at least two wall units may share a substantially common shape and substantially common dimension, and may form a part of a wall, ceiling, and floor of the shelter. The shelter can also include various atmospheric control, circulation, and purge systems, and exterior and soft seal doors to assist in maintaining a livable atmosphere in the safety chamber.