Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2008-04-08
2008-04-08
Redding, David A (Department: 3723)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015SDIG010
Reexamination Certificate
active
11293169
ABSTRACT:
A battery-powered vacuum cleaner is provided with a battery pack that generates heat and is capable of efficiently cooling the battery pack. The battery-powered vacuum cleaner comprises a battery pack (3) including a plurality of secondary batteries, a battery pack container (2) containing the battery pack, a motor (7) driven for operation by power supplied by the battery pack, a fan (5) driven by the motor to suck air, a dust cup (9) for separating dust from air sucked therein by the fan and storing the dust separated from the sucked air, a housing (1) containing the battery pack container, the motor, the fan and the dust cup, and provided with a first suction opening (30) through which external air is sucked, a first airflow duct (32) for guiding the air sucked in by the fun through the dust cup to the motor, and a second airflow duct (36), for guiding air for cooling the battery pack through the battery pack, joined to the first airflow duct at a junction (34) on the upstream side of the fan.
REFERENCES:
patent: 5074006 (1991-12-01), Eremita
patent: 7-250788 (1995-10-01), None
patent: 2001-128901 (2001-05-01), None
patent: 2002-65535 (2002-03-01), None
patent: 2003-38403 (2003-02-01), None
Hisano Katsumi
Iwasaki Hideo
Kanai Hideyuki
Kanda Motoya
Kabushiki Kaisha Toshiba
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Redding David A
LandOfFree
Battery-powered vacuum cleaner and method of cooling... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Battery-powered vacuum cleaner and method of cooling..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Battery-powered vacuum cleaner and method of cooling... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3913148