Hand vacuum with filter indicator

Details Hand vacuum with filter indicator Hand vacuum with filter indicator

2004-02-25

2008-09-02

Redding, David A (Department: 3723)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S414000, C015S415100, C417S315000, C417S423200

Reexamination Certificate

active

07418763

ABSTRACT:
A hand-held portable vacuum having a filter indicator that is coupled to an outlet housing and in fluid communication with a portion of the outlet housing between a fan inlet and an intake. The filter indicator includes a pressure differential indicator that is configured to indicate a pressure differential between air in the portion of the outlet housing and atmospheric air pressure. The filter indicator is employed to indicate to the user of the hand-held vacuum that replacement and/or cleaning of the filter is required. The vacuum may also be used in a blower mode with a set of inflator nozzles to permit a user to inflate an article.

REFERENCES:
patent: 1302929 (1919-05-01), Kirby
patent: 2030367 (1936-02-01), Grave
patent: 2219810 (1940-10-01), Foss
patent: 2232906 (1941-02-01), Ernolf
patent: 2639456 (1953-05-01), Smith
patent: 2788541 (1957-04-01), Kemnitz
patent: 2806242 (1957-09-01), Sparklin
patent: 3172743 (1965-03-01), Kowalewski
patent: 3300806 (1967-01-01), Ripple
patent: 3557399 (1971-01-01), Wolf
patent: 3695006 (1972-10-01), Valbona et al.
patent: 3936904 (1976-02-01), Bashark
patent: 4059293 (1977-11-01), Sipler
patent: 4070170 (1978-01-01), Leinfelt
patent: 4100878 (1978-07-01), Leinfelt
patent: 4114230 (1978-09-01), MacFarland
patent: 4199838 (1980-04-01), Simonsson
patent: 4330900 (1982-05-01), Dorr et al.
patent: 4405158 (1983-09-01), Huberman
patent: 4416033 (1983-11-01), Specht
patent: 4419782 (1983-12-01), Sobczyk et al.
patent: 4481692 (1984-11-01), Kurz
patent: 4642841 (1987-02-01), Berfield et al.
patent: 4656687 (1987-04-01), Wei
patent: 4660246 (1987-04-01), Duncan
patent: 4685171 (1987-08-01), Beaudoin
patent: 4767213 (1988-08-01), Hummel
patent: 4800614 (1989-01-01), Kopco et al.
patent: 4829625 (1989-05-01), Wang
patent: 4850076 (1989-07-01), Ostroski et al.
patent: 4947512 (1990-08-01), Lackner et al.
patent: 4993108 (1991-02-01), Genge et al.
patent: 5023973 (1991-06-01), Tsuchida et al.
patent: 5050266 (1991-09-01), Schneider
patent: 5060339 (1991-10-01), Evers
patent: 5086536 (1992-02-01), Lackner et al.
patent: 5129128 (1992-07-01), Bowerman et al.
patent: 5289610 (1994-03-01), Monson
patent: 5329666 (1994-07-01), Bowerman et al.
patent: 5331716 (1994-07-01), Hemmann et al.
patent: 5355549 (1994-10-01), Steinberg et al.
patent: 5392490 (1995-02-01), Monson
patent: 5500978 (1996-03-01), Levine
patent: 5561885 (1996-10-01), Zahuranec et al.
patent: 5586358 (1996-12-01), Wolfe et al.
patent: 5608944 (1997-03-01), Gordon
patent: 5829093 (1998-11-01), Kim
patent: 6029309 (2000-02-01), Imamura
patent: 6125501 (2000-10-01), Yip
patent: 6434785 (2002-08-01), Vandenbelt et al.
patent: 2 086 445 (1994-07-01), None
patent: 2 254 188 (2000-05-01), None
patent: 1 949 328 (1966-11-01), None
patent: 8417091 (1984-09-01), None
patent: 39 41 039 (1989-12-01), None
patent: 41 35 406 (1992-05-01), None
patent: EP 0 893 962 (1999-02-01), None
patent: 197 36 596 (2001-06-01), None
patent: 0 430 146 (1991-06-01), None
patent: 1 070 478 (2001-01-01), None
patent: 1 222 891 (2002-07-01), None
patent: 1 252 854 (2002-10-01), None
patent: 1 379 162 (1975-01-01), None
patent: 1 455 926 (1976-11-01), None
patent: 2 154 862 (1985-09-01), None
patent: 2 234 029 (1991-01-01), None
Product Description of Metro Vac N' Blo Compact Car VNB-83BA□□http://www.govacuum.com/mevacnblcoca.html. 1997.

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