Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2003-10-16
2008-03-18
Redding, David A (Department: 3723)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S352000, C015S353000, C055S413000, C055S492000, C055SDIG030
Reexamination Certificate
active
07343641
ABSTRACT:
A vacuum cleaner is provided including a housing, a nozzle inlet, a suction generator carried on the housing and a dirt cup carried on the housing. The dirt cup includes a bottom wall, a sidewall, a dirt collection chamber, an air inlet to the dirt collection chamber in the bottom wall and an air outlet from the dirt collection chamber. A method of directing an airstream in a dirt cup is also provided. That method includes directing the airstream upwardly through the dirt cup in an air inlet conduit, discharging the airstream from the air inlet conduit into the dirt cup in a substantially hemihorn torus shape and exhausting the airstream from the dirt cup.
REFERENCES:
patent: 95794 (1869-10-01), Graves
patent: 133436 (1872-11-01), Grassler
patent: 352063 (1886-11-01), Optenberg
patent: 1230784 (1917-06-01), Rice
patent: 1230827 (1917-06-01), Duffie
patent: 1363859 (1920-12-01), Fetters et al.
patent: 1762142 (1930-06-01), Breton
patent: 1847233 (1932-03-01), Bilde
patent: 2346339 (1944-04-01), Vose
patent: 3371471 (1968-03-01), Connors
patent: 3959844 (1976-06-01), Cyphert
patent: 4287635 (1981-09-01), Jacobs
patent: 4743363 (1988-05-01), Darrow
patent: 5199963 (1993-04-01), Scarp
patent: 5259854 (1993-11-01), Newman
patent: 5343592 (1994-09-01), Parise
patent: 5653880 (1997-08-01), Mouton
patent: 5837129 (1998-11-01), Ross, Jr. et al.
patent: 5961677 (1999-10-01), Scott
patent: 6171356 (2001-01-01), Twerdun
patent: 6195835 (2001-03-01), Song et al.
patent: 6243912 (2001-06-01), Grey
patent: 6391095 (2002-05-01), Conrad et al.
patent: 6428589 (2002-08-01), Bair et al.
patent: 6546592 (2003-04-01), Cockburn et al.
patent: 6588055 (2003-07-01), Bair et al.
patent: 52-20669 (1977-02-01), None
patent: 56-136642 (1981-10-01), None
patent: 56-136650 (1981-10-01), None
King & Schickli PLLC
Panasonic Corporation of North America
Redding David A
LandOfFree
Dirt collection assembly with volcanic airflow does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dirt collection assembly with volcanic airflow, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dirt collection assembly with volcanic airflow will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3977942