Gas separation – Multiple separators – each with discrete and longitudinally... – Combined serial and parallel arrangement
Reexamination Certificate
2006-05-09
2010-11-09
Hopkins, Robert A (Department: 1797)
Gas separation
Multiple separators, each with discrete and longitudinally...
Combined serial and parallel arrangement
C055S349000, C055S429000, C055S459100, C055SDIG030
Reexamination Certificate
active
07828866
ABSTRACT:
A cyclonic separating apparatus includes a first cyclonic separating unit including at least one first cyclone, a second cyclonic separating unit located downstream of the first cyclonic separating unit and including at least one second cyclone, and a third cyclonic separating unit located downstream of the second cyclonic separating unit and including at least one third cyclone. The separation efficiency of the second cyclonic separating unit is substantially the same as the separation efficiency of either the first cyclonic separating unit or the third separating unit, providing an apparatus which achieves a higher separation efficiency than known separation apparatus.
REFERENCES:
patent: 3425192 (1969-02-01), Davis
patent: 3724176 (1973-04-01), Vishnevsky et al.
patent: 4373228 (1983-02-01), Dyson
patent: 5129124 (1992-07-01), Gamou et al.
patent: 6238451 (2001-05-01), Conrad et al.
patent: 6607572 (2003-08-01), Gammack et al.
patent: 2006/0230724 (2006-10-01), Han et al.
patent: 2009/0031524 (2009-02-01), Courtney et al.
patent: 0 042 723 (1985-08-01), None
patent: 0 613 935 (1994-09-01), None
patent: 0728435 (1996-08-01), None
patent: 1157651 (2001-11-01), None
patent: 1 268 076 (2004-10-01), None
patent: 2360719 (2001-10-01), None
patent: 2367019 (2002-03-01), None
patent: 2367511 (2002-04-01), None
patent: 2372470 (2002-08-01), None
patent: 2 424 603 (2006-10-01), None
patent: 2424606 (2007-03-01), None
patent: 50-84964 (1975-07-01), None
patent: 52-14775 (1977-02-01), None
patent: 63-28144 (1988-02-01), None
patent: 7-3270 (1995-01-01), None
patent: 7-186041 (1995-07-01), None
patent: 2002-326041 (2002-11-01), None
patent: 2004-520138 (2004-07-01), None
patent: 2002-0078798 (2002-10-01), None
patent: WO-02/067753 (2002-09-01), None
Courtney et al., Express Notice of Abandonment filed in co-pending U.S. Appl. No. 11/794,227 dated Mar. 31, 2009; 2 pages.
Courtney et al., Suggestion of Interference under 37 CFR 41.202(a) filed in co-pending U.S. Appl. No. 11/794,227 dated Dec. 9, 2008; 14 pages.
Courtney et al., Suggestion of Interference under 37 CFR 41.202(a) filed in co-pending U.S. Appl. No. 11/794,227 dated Dec. 30, 2008; 29 pages.
Grounds of Invalidity issued by the High Court, Chancery Division of the United Kingdom served Sep. 10, 2007.
Retail advertisement of Dyson vacuum cleaner model DC07 published Jun. 2001, 12 pages.
Retail advertisement of Dyson vacuum cleaner model DC08 published Apr. 2002, 14 pages.
Retail advertisement of Dyson vacuum cleaners similar to models DC07 and DC08 published Mar. 29, 2005, 4 pages.
GB search report mailed on May 15, 2008 directed at counterpart application No. 0510862.6; 4 pages.
GB Search Report dated Sep. 28, 2005, directed to counterpart GB Application No. 0510864; 1 page.
International Search Report dated Aug. 8, 2006, directed to counterpart International Application No. PCT/GB2006/001661; 3 pages.
Japanese Notice of Reasons for Rejection mailed Feb. 16, 2010, directed to counterpart Japanese Application No. 2008-512898; 5 pages.
Courtney, S., et al., U.S. Office Action mailed Jun. 28, 2010, directed to U.S. Appl. No. 11/794,514; 7 pages.
Courtney Stephen Benjamin
Dyson James
Gomiciaga-Pereda Ricardo
Dyson Technology Limited
Hopkins Robert A
Morrison & Foerster / LLP
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