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:
Oct. 15, 2013
Filed:
Apr. 17, 2009
Applicants:
Atsushi Suzuki, Aichi, JP;
Takayuki Kobayashi, Aichi, JP;
Kazuyuki Kamiya, Aichi, JP;
Inventors:
Assignee:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C 11/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is a propeller fan that can prevent deformation of the propeller fan while maintaining the basic performance thereof, such as the air blowing performance, efficiency, and noise performance. In a plastic propeller fan including a hub and a plurality of blades integrally molded in a radial pattern on the outer circumference of the hub, assuming that the radial size of each blade from the base to the outer peripheral edge is 100, a ring member that joins the plurality of blades together is provided at a dimension position of 5 to 45 from the outer peripheral edge.