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Class Information
Number: 417/423.2
Name: Pumps > Motor driven > Electric or magnetic motor > Rotary motor and rotary nonexpansible chamber pump > Vacuum cleaner
Description: Apparatus wherein the pump is specifically adapted to create a suction to clean a surface.


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7481630 Hand held vacuum cleaner and housing for such a cleaner Jan. 27, 2009
7418763 Hand vacuum with filter indicator Sep. 2, 2008
7416384 Electric blower and vacuum cleaner using same Aug. 26, 2008
7104768 Peristaltic micropump Sep. 12, 2006
6920867 Air intake arrangement for an internal combustion engine Jul. 26, 2005
6843644 Mounting structure of blower for vacuum cleaner Jan. 18, 2005
6786706 Fan in which motor yoke is mounted on a motor shaft by caulking or spot welding Sep. 7, 2004
6736615 Brush and bearing holder for a fan/motor May. 18, 2004
6508618 Pump having dynamic shaft seal Jan. 21, 2003
6378164 Pump inlet fitting Apr. 30, 2002
6368066 Vacuum apparatus and fan casing with wear indicator Apr. 9, 2002
6264427 Vaneless impeller housing for a vacuum cleaner Jul. 24, 2001
6249933 Pump having sealless shaft Jun. 26, 2001
6232696 Vacuum generating apparatus with multiple rotors May. 15, 2001
6166462 Bypass motor/fan assembly having separate working air passages Dec. 26, 2000
6126417 Conveying device for liquid and gaseous media, such as vacuum cleaners, pumps etc. Oct. 3, 2000
6122799 Vacuum cleaner with three stage air induction system Sep. 26, 2000
6098245 Vacuum cleaner motor assembly Aug. 8, 2000
5994808 Field replaceable motor oil filter for a submergible motor Nov. 30, 1999
5938410 Dust sucking/blowing device Aug. 17, 1999
5811899 Small electric motor with airflow guide structure Sep. 22, 1998
5622485 High performance efficiency dirty air motor/fan system Apr. 22, 1997
5573369 Impeller for vacuum cleaner with tapered blades Nov. 12, 1996
5454690 Air flow housing Oct. 3, 1995
5404614 Latch assembly for blower of wet/dry vacuum cleaner Apr. 11, 1995
5375651 Draft inducer blower motor mounting and cooling construction Dec. 27, 1994
5334000 Housing arrangement for compact blower and vacuum Aug. 2, 1994
5297942 Porous rotor Mar. 29, 1994
5296769 Air guide assembly for an electric motor and methods of making Mar. 22, 1994
5110266 Electric blower having improved return passage for discharged air flow May. 5, 1992
5022829 Vacuum apparatus Jun. 11, 1991
4995794 Vacuum pumps Feb. 26, 1991
4836753 Portable electric blower Jun. 6, 1989
4824333 Air blower assembly for vacuum cleaners Apr. 25, 1989
4808090 Vacuum motor fan cover Feb. 28, 1989
4797072 Portable electric blower Jan. 10, 1989
4767285 Electric blower Aug. 30, 1988
4735555 Air blower assembly for vacuum cleaner Apr. 5, 1988
4733532 Fluid power train for small appliances Mar. 29, 1988
4728266 Motor drive vacuum pump Mar. 1, 1988
4726745 Portable fluid pumping device Feb. 23, 1988
4655694 Housing assembly for motor/fan means of a wet/dry vacuum cleaner Apr. 7, 1987
4632642 Motor-fan mounting system for canister vacuum cleaner Dec. 30, 1986
4621991 Quiet by-pass vacuum motor Nov. 11, 1986
RE32027 Wet pick-up vacuum unit motor bearing air seal Nov. 12, 1985
4538971 Assembly of tank lid and fan means of a wet/dry vacuum Sep. 3, 1985
4527960 Bearing air seal for vacuum cleaner motor Jul. 9, 1985
4226575 Wet pick-up vacuum unit Oct. 7, 1980
4195969 Vacuum cleaner Apr. 1, 1980
4120616 Vacuum cleaner-blower assembly with sound absorbing arrangement Oct. 17, 1978

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