Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Concave surface
Reexamination Certificate
2008-07-08
2008-07-08
Nguyen, Nihn H (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Concave surface
C416S22300B
Reexamination Certificate
active
07396212
ABSTRACT:
Twisted leaf shaped ceiling fan blades for low, medium and high speed operation of less than approximately 250 rpm. The novel blades twisted blades can be configured for 52″, 54″, 56″, 60″ and 64″ diameter fans, and have less blades (3 for example) than conventional flat type bladed fans having 4, 5 blades and have greater air flow and less power draw results than the conventional flat 54 inch fans. Any of the novel twisted blades of 48″, 52″, 54″, 56″, 60″ and 64″ can be run at reduced speeds, drawing less Watts than conventional fans and still perform better with more air flow and less problems than conventional flat type conventional leaf shaped blades.
REFERENCES:
patent: 1506937 (1924-09-01), Miller
patent: 1903823 (1933-04-01), Lougheed
patent: 1942688 (1934-03-01), Davis
patent: 2283956 (1942-04-01), Smith
patent: 2345047 (1944-03-01), Houghton
patent: 2450440 (1948-10-01), Mills
patent: 2682925 (1954-07-01), Wosika
patent: 4197057 (1980-04-01), Hayashi
patent: 4325675 (1982-04-01), Gallot et al.
patent: 4411598 (1983-10-01), Okada
patent: 4416434 (1983-11-01), Thibert et al.
patent: 4693673 (1987-09-01), Nee
patent: 4730985 (1988-03-01), Rothman et al.
patent: 4782213 (1988-11-01), Teal
patent: 4844698 (1989-07-01), Gornstein et al.
patent: 4892460 (1990-01-01), Volk
patent: 4974633 (1990-12-01), Hickey
patent: 5033113 (1991-07-01), Wang
patent: 5114313 (1992-05-01), Vorus
patent: RE34109 (1992-10-01), Gornstein et al.
patent: 5244349 (1993-09-01), Wang
patent: 5253979 (1993-10-01), Fradenburgh et al.
patent: 5328329 (1994-07-01), Monroe
patent: D355027 (1995-01-01), Young
patent: D364224 (1995-11-01), Wang
patent: D371838 (1996-07-01), Davis, Jr. et al.
patent: D378404 (1997-03-01), Jaspers-Fayer
patent: D382636 (1997-08-01), Yang
patent: D387156 (1997-12-01), Johnson
patent: D402026 (1998-12-01), Chuang et al.
patent: 5860788 (1999-01-01), Sorensen
patent: D408518 (1999-04-01), Liu
patent: D412571 (1999-08-01), Lee
patent: 5951162 (1999-09-01), Weetman et al.
patent: D414856 (1999-10-01), Zuege
patent: D421799 (2000-03-01), Zuege
patent: D422072 (2000-03-01), Blateri
patent: 6039533 (2000-03-01), McCabe
patent: 6039541 (2000-03-01), Parker et al.
patent: 6146097 (2000-11-01), Bradt
patent: D443352 (2001-06-01), Lantz
patent: 6244821 (2001-06-01), Boyd et al.
patent: 6254476 (2001-07-01), Choi
patent: D451997 (2001-12-01), Schwartz
patent: D453566 (2002-02-01), Lantz
patent: D454636 (2002-03-01), Lantz
patent: D469950 (2003-02-01), Scalise et al.
patent: D480471 (2003-10-01), Hsieh
patent: D480473 (2003-10-01), Thomas, Jr.
patent: D484233 (2003-10-01), Bucher et al.
patent: 6659721 (2003-12-01), Parker et al.
patent: D485345 (2004-01-01), Bucher
patent: D485346 (2004-01-01), Bucher et al.
patent: D485347 (2004-01-01), Bucher et al.
patent: 6719532 (2004-04-01), Bird
patent: 6719533 (2004-04-01), Bird
patent: 6733241 (2004-05-01), Bird
patent: D491657 (2004-06-01), Cartwright
patent: 6884034 (2005-04-01), Parker et al.
patent: 6890155 (2005-05-01), Cartwright
patent: 6923624 (2005-08-01), Tsai
patent: D510992 (2005-10-01), Bucher
patent: 6968953 (2005-11-01), Humphrey
patent: 7210910 (2007-05-01), Parker et al.
patent: 19987 (1929-05-01), None
patent: 1050902 (1954-01-01), None
patent: 676409 (1952-07-01), None
patent: 925931 (1963-05-01), None
Kiceniuk, Jr. Taras
Parker Danny S.
Zambrano Thomas
Law Offices of Brian S. Steinberger , P.A.
Nguyen Nihn H
Steinberger Brian S.
University of Central Florida Research Foundation Inc.
LandOfFree
High efficiency twisted leaf blade ceiling fan does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High efficiency twisted leaf blade ceiling fan, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High efficiency twisted leaf blade ceiling fan will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2812456