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. 06, 2001
Filed:
Jan. 22, 1999
D. Lee Hill, Olean, NY (US);
Edward N. Koop, Olathe, KS (US);
Emerson Electric Co.,, St. Louis, MO (US);
Abstract
An air circulator fan has front and rear fan guard members, each of which have a grille forming a concave dish. A propeller is positioned between the fan guard members, and is attached to the rotary output of a motor. The motor is positioned centrally on the front fan guard member, in a location downstream from the propeller. When the propeller rotates during operation of the fan, air is drawn through the rear fan guard member and out the front fan guard member. Each grille has a first spacing at a major face portion thereof, and a second, lessor spacing proximate a periphery thereof. This arrangement allows debris (such as feathers in a poultry barn) to pass through the major face portion of each grille, but provides a safety feature near the periphery of the guard members. A three-point mount is provided for suspending the fan, with chains or cables, from an overhead surface. In one embodiment, the three-point mount includes a support brace for providing stability to the fan, both while the fan is placed in a desired location and when the fan is operating.