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. 16, 2005
Filed:
May. 15, 2003
Leslie A. Lyons, Cassville, MO (US);
David A. Fisher, Cassville, MO (US);
Leslie A. Lyons, Cassville, MO (US);
David A. Fisher, Cassville, MO (US);
Fasco Industries, Inc., Cassville, MO (US);
Abstract
A blower assembly that includes an exhaust restrictor to aid in operating the blower assembly over a range of operating conditions. The blower assembly includes a blower housing having a housing exhaust opening that receives a flow of exhaust gases created by a rotating impeller. An exhaust transition section extends between the housing exhaust opening to an expanded diameter exhaust outlet sized to receive a flue pipe. The blower housing includes an exhaust restrictor positioned in the exhaust transition section between the housing exhaust opening and the exhaust outlet. The exhaust restrictor is integrally formed with a portion of the blower housing and includes a curved back wall to aid in the transition between the housing exhaust opening and the exhaust outlet.