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:
Dec. 28, 1982
Filed:
Mar. 05, 1981
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An electric fan including a casing having an air supply opening at a front part and an air suction opening at a rear part and an air passage in the casing from the air suction opening to the air supply opening; fan blades placed in the air passage or near the air suction opening as an inlet to provide air flow in the air passage from the air suction opening to the air supply opening; a first motor for rotating the fan blades; a circular air directing grille having many slits to cover the front part of the air supply opening of the casing in gyratory manner; a driving roll made of an elastic material placed on the peripheral part of air directing grille to contact the driving roll with the peripheral part of the grille with a spring force; a second motor for driving the driving roll to turn the air directing grille and the air directing grille can be rotated in stable condition under contacting of the driving roll with the peripheral surface of the air directing grille with the spring force if desired.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile