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:
May. 07, 1985
Filed:
Oct. 19, 1983
Applicant:
Inventor:
Manfred Heerlein, Bad Neustadt, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
416131 ; 416140 ; 416189 ; 4162 / ;
Abstract
The invention relates to an axial fan with blades that automatically adjust to the direction of rotation. The fan blades are mounted with freedom to swivel on the fan wheel and are limited in their swiveling motion by stops which are provided on the fan wheel. In order to reduce the manufacturing cost of such an axial fan, spokes, to which the fan blades are fastened by means of film hinges are mounted on the fan wheel. The fan wheel is made from a single piece of plastic.
Heerlein, Manfred. (1985). Axial fan with blades that automatically adjust to the direction of (U.S. Patent No. 4515511). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4515511
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile