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:
Aug. 02, 1988
Filed:
Dec. 17, 1986
Applicant:
Inventor:
Reinhold Hopfensperger, Dietelskirchen, DE;
Assignee:
Standard Elektrik Lorenz AG, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
415119 ; 415D / ; 415192 ;
Abstract
A frame-supported fan in which the mounting portions between the motor and the frame are formed in the shape of an arrowhead and/or are provided with sculptured edges extending to the frame or are provided with interfering bodies mounted to the outer ends of the edges of the frame, so as to reduce unwanted noise by producing non-uniform flow separation in the air stream through the fan.
Quick Actions:
Hopfensperger, Reinhold. (1988). Axial-flow fan (U.S. Patent No. 4761115). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4761115
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile