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. 11, 2015
Filed:
Jan. 18, 2012
Applicants:
Chuan Jiang Guo, Shenzhen, CN;
Chuan Hui Fang, Hong Kong, CN;
Inventors:
Chuan Jiang Guo, Shenzhen, CN;
Chuan Hui Fang, Hong Kong, CN;
Assignee:
Johnson Electric S.A., Murten, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/42 (2006.01); A47L 15/42 (2006.01); F04D 29/44 (2006.01); D06F 39/08 (2006.01);
U.S. Cl.
CPC ...
A47L 15/4225 (2013.01); D06F 39/085 (2013.01); F04D 29/428 (2013.01); F04D 29/445 (2013.01);
Abstract
A centrifugal pump has an electric motor, an impeller driven by the motor and a spiral volute. The impeller has an annular base plate and a plurality of vanes arranged on the base plate. The spiral volute has an inlet, an outlet and an impeller chamber in which the impeller is disposed. The inlet extends outwardly from a top wall of the volute. The outlet extends outwardly from a side wall of the volute in the spiral direction of the volute. The spiral volute has a wrap angle between 360 to 460 degrees. A washing apparatus incorporating the centrifugal pump is also provided.