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Publication numberUS20020121000 A1
Publication typeApplication
Application numberUS 09/798,673
Publication dateSep 5, 2002
Filing dateMar 2, 2001
Priority dateMar 2, 2001
Publication number09798673, 798673, US 2002/0121000 A1, US 2002/121000 A1, US 20020121000 A1, US 20020121000A1, US 2002121000 A1, US 2002121000A1, US-A1-20020121000, US-A1-2002121000, US2002/0121000A1, US2002/121000A1, US20020121000 A1, US20020121000A1, US2002121000 A1, US2002121000A1
InventorsAlexander Tyler
Original AssigneeTyler Alexander Martin
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Freedom vac (upright high-powered cordless vacuum cleaner)
US 20020121000 A1
The battery charger (2) recharges the battery (1) when the electrical cord (7) is in use. The battery (1) supplies 12 volts of low voltage electricity to the DC/AC converter (3). The DC/AC converter (3) converts the 12-voltage electricity to a higher powered 115 volts electricity, which supplies the motor (6). The motor (6) turns a gear-driven generator (4), which supplies voltage to the battery charger (2) and recharges the battery (1). To help keep a longer charge in the battery (1), the power is controlled by a toggle switch (9) and relay (8), which disconnects the power supply.
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1. An upright, full-size vacuum cleaner that utilizes a rechargeable battery in addition to the normal electrical cord.
2. A battery pack that recharges when the electrical cord is in use. The purpose of this invention is to eliminate the limitation of the electrical cord by offering a high-powered, battery driven vacuum cleaner that utilizes a normal High Voltage motor that equals the power of a cord vacuum cleaner (115V). This invention can also be used in commercial applications.

[0001] This invention relates to vacuum cleaners in general, and, in particular, upright, full-sized vacuum cleaners. Current designs of full-size vacuum cleaners utilize a low voltage motor that requires an electrical cord as the primary energy source. These low voltage vacuum motors do not have enough charge to vacuum a complete house (2000 sq./ft.) and cannot be used for commercial applications, thus, requiring an electrical cord. Because of the necessity of the electrical cord, the user is very limited in vacuum surface by the length of the electrical cord.


[0002] The advantages of this invention includes the following:

[0003] 1. Removes the limitation of the electrical cord by providing a battery pack as the primary energy source.

[0004] 2. Recharges battery pack when electrical cord is in use.

[0005] 3. DC battery ability to step up to AC voltage to supply motor.

[0006] 4. Ability to generate power to the battery charger to recharge the battery when electrical cord is in use.

[0007] 5. Saves time and money


[0008] See Figure A


[0009] 1. Battery

[0010] 2. Battery Charger

[0011] 3. DC to AC Converter

[0012] 4. Gear Driven Generator

[0013] 5. Gears

[0014] 6. Motor

[0015] 7. Electrical Cord

[0016] 8. Relay

[0017] 9. Toggle Switch

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6763548 *Mar 5, 2002Jul 20, 2004Ruben BirleVacuum cleaner
US7356873 *Jul 3, 2002Apr 15, 2008Nielsen InnovationHighly efficient autonomous vacuum cleaner
US7898209Oct 3, 2007Mar 1, 2011Lg Electronics Inc.Cleaner and method for driving the same
US8001653 *Jun 4, 2009Aug 23, 2011Longley Everton WVacuum apparatus
US8601640Dec 13, 2006Dec 10, 2013Miele & Cie. KgVacuum cleaner, especially floor vacuum cleaner
US8806702Mar 30, 2012Aug 19, 2014Shop Vac CorporationPortable vacuum cleaner
EP1419723A2 *Nov 11, 2003May 19, 2004Black & Decker Inc.AC/DC hand portable wet/dry vacuum having improved portability and convenience
EP2163180A2 *Dec 13, 2006Mar 17, 2010Miele & Cie. KGVacuum cleaner, in particular floor vacuum cleaner
U.S. Classification15/412, 15/DIG.1
International ClassificationA47L9/28, A47L5/28
Cooperative ClassificationA47L9/2878, A47L5/28, A47L9/2873, A47L9/2884
European ClassificationA47L9/28P6, A47L9/28P2, A47L9/28P4, A47L5/28