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. 13, 2003
Filed:
Apr. 03, 2001
Applicant:
Inventors:
Michael R. Volkert, Ravenna, OH (US);
Daniel L. Kirtz, Stow, OH (US);
Assignee:
Ametek, Inc., Kent, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
F04B 5/300 ; F04B 3/504 ; H02K 9/06 ;
U.S. Cl.
CPC ...
F04B 5/300 ; F04B 3/504 ; H02K 9/06 ;
Abstract
A bypass discharge motor assembly with improved noise reduction includes a motor assembly having a rotatable shaft. A working air fan assembly and a cooling fan are rotated by the shaft. A cooling fan housing is coupled to the motor assembly and partially encloses the cooling fan. The cooling fan housing has at least one radial air entry part for radially receiving cooling air drawn into the housing by the cooling fan.