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:
Mar. 23, 1999
Filed:
Jun. 17, 1997
Michael F Napadow, Elmhurst, IL (US);
Thomas L Rowe, Channahon, IL (US);
Other;
Abstract
A controlled environment room encompassing a room space is provided with air supply structure which includes a room ceiling surmounting the room space, a top closure disposed above the ceiling and spaced apart from the ceiling to form a plenum chamber therewith, and an array of steel joists extending between and constructed and arranged to support the ceiling and the closure, the joists each including a pair of spaced apart chords which are components of the ceiling and are constructed and arranged to support the ceiling, the chords defining between them elongate slots extending through the ceiling, the slots providing air passageways extending from the plenum chamber to the room space for conducting pressurized air from the plenum chamber to the room space.