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. 27, 1980
Filed:
Aug. 14, 1978
Applicant:
Inventors:
Siegfried Schonwald, Bad Neustadt, DE;
Norbert Schmid, Bad Neustadt, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D / ; F04D / ;
U.S. Cl.
CPC ...
4152 / ; 4151982 ;
Abstract
In a side channel compressor, the blades arranged on the rotor are provided with a bevel on the back side of the blade at their lateral edges and the output characteristic can be changed by providing a slot-like recess at the blade edges in the entrance region of the blades. If required, such slot-like recess can be made as a retrofit.