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:
May. 02, 2017
Filed:
Dec. 31, 2013
Greenheck Fan Corporation, Schofield, WI (US);
John William Enzenroth, Weston, WI (US);
Terry Lee Hrdina, Wausau, WI (US);
Kishor Kashinath Khankari, Ann Arbor, MI (US);
Scott James Koeppel, Wausau, WI (US);
Edward G. Legner, Junction City, WI (US);
Timothy Ronald Mathson, Mosinee, WI (US);
Anthony J. Rossi, Indianapolis, IN (US);
Michael Glenn Seliger, Marathon, WI (US);
Greenheck Fan Corporation, Schofield, WI (US);
Abstract
An exhaust fan assembly is provided for expelling contaminated air from a building. The assembly includes a plenum, a fan assembly attached to the plenum, and a windband mounted on top of the fan assembly. The fan assembly is constructed of cylindrical outer and inner walls which define a bearing chamber and surrounding annular space. A fan driven by a shaft extending downward from the bearing chamber draws exhaust air from the plenum and blows it up through the annular space to a nozzle at the top of the fan assembly.