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:
Feb. 27, 2024
Filed:
Mar. 19, 2021
Applicant:
Greenheck Fan Corporation, Schofield, WI (US);
Inventor:
Daniel Davis, Weston, WI (US);
Assignee:
Greenheck Fan Corporation, Schofield, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 25/06 (2006.01); F04D 29/44 (2006.01); F04D 29/42 (2006.01); F04D 29/28 (2006.01);
U.S. Cl.
CPC ...
F04D 25/06 (2013.01); F04D 25/0606 (2013.01); F04D 29/283 (2013.01); F04D 29/4226 (2013.01); F04D 29/441 (2013.01);
Abstract
An exhaust fan assembly can include an outer housing, a fan housing mounted to the outer housing, a fan wheel and an electric motor operably coupled to the fan wheel, the fan wheel and electric motor being mounted within the fan housing, wherein the fan housing defines an open inlet side for accepting airflow in a direction generally parallel to a rotational axis of the fan wheel and an outlet for discharging airflow in a direction generally perpendicular to the rotational axis, wherein the fan housing defines a volute section with an outer perimeter having a continuously curved cross-sectional shape.