Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Radially extending web or end plate
Reexamination Certificate
2005-04-19
2005-04-19
Look, Edward K. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Rotor having flow confining or deflecting web, shroud or...
Radially extending web or end plate
C416S22300B, C416SDIG004
Reexamination Certificate
active
06881035
ABSTRACT:
A furnace blower assembly having a single piece impeller formed from a stamped metal material. The impeller of the blower assembly is formed from a single piece of metal material and includes a plurality of individual impeller blades each having a blade portion bent at a 90° angle relative to the back wall of the impeller. Each of the impeller blades is backward inclined and forward curved to increase the efficiency of the impeller.
REFERENCES:
patent: 2188741 (1940-01-01), Roberts
patent: 3403962 (1968-10-01), Suffron et al.
patent: 3692428 (1972-09-01), Bubb et al.
patent: 3846043 (1974-11-01), Wolbrink et al.
patent: 5125799 (1992-06-01), Sato et al.
patent: 5375651 (1994-12-01), Colwell
patent: 5478206 (1995-12-01), Prahst
patent: 5685695 (1997-11-01), Klement et al.
patent: 5895206 (1999-04-01), Chuang et al.
patent: 6095752 (2000-08-01), Gronier et al.
patent: 6314894 (2001-11-01), Gatley, Jr.
patent: 6468034 (2002-10-01), Garrison et al.
patent: 6537030 (2003-03-01), Garrison
Impeller Assembly, Part No. 8710 4765, Fasco Industries Engineering Drawing, Admitted prior art.
Blower Assembly, Part No. 7021 10215, Fasco Industries Engineering Drawing, admitted prior art.
Andrus Sceales Starke & Sawall LLP
Edgar Richard A.
Fasco Industries, Inc.
Look Edward K.
LandOfFree
Draft inducer having single piece metal impeller and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Draft inducer having single piece metal impeller and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Draft inducer having single piece metal impeller and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3398002