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:
Feb. 03, 1976
Filed:
Jul. 18, 1974
Applicant:
Inventor:
Edgar Saterdal, Rottne, SW;
Assignee:
Aktiebolaget Svenska Flaktfabriken, Nacka, SW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
2915 / ; 415D / ;
Abstract
A method for manufacturing fan blades which are adjustable in operation. The adjusting means comprises a compressed air box for actuating each fan blade by means of a dog member, said box and said member being non-rotatable on the fan wheel axle. The fan is easy to construct to different demands for capacity due to the fact that fan blade shafts are made in a number of exchangeable preselected standardized sizes and always has the same above mentioned arrangements for the rest of the fan.