Quotables
"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| RE42155 | Light-weight self-propelled vacuum cleaner A vacuum cleaner power head (40) for vacuum cleaning and having two counter rotating agitators 52 and 54. Motor (60) rotates agitators (52) and (54) through transmission (70), and also rotates suction fan (65) ... | 02/22/2011 |
| 7770255 | Vacuum cleaner with drive assist A base has wheels, including a drive wheel, for wheeling the base over a floor. A nozzle is fixed to the base for a fan in the base to draw air from the floor through the nozzle. A handle is connected to the base for propelling the base by manually applying a force ... | 08/10/2010 |
| 7503097 | Traveling equipment for cleaner Traveling equipment for a cleaner comprises: a traveling motor mounted to a cleaner head part and for generating a normal torque and a reverse torque; a traveling shaft penetrated and coupled to the traveling motor and supplied with the torque of the traveling motor... | 03/17/2009 |
| 7487569 | Vacuum cleaner with drive assist A base has wheels, including a drive wheel, for wheeling the base over a floor. A handle, including a handgrip, is connected to the base for propelling the base by manually applying a force to the handgrip. A motor has an output shaft coupled to the drive wheel. A c... | 02/10/2009 |
| 7421758 | Upright vacuum cleaner with swing brush Disclosed herein is an upright vacuum cleaner with a swing brush. The upright vacuum cleaner comprises an upright cleaner body having a suction nozzle, a drive unit mounted in the cleaner body for moving the cleaner body forward or rearward, a grip unit slidably mou... | 09/09/2008 |
| 7367080 | Upright vacuum cleaner with movement control grip Disclosed herein is an upright vacuum cleaner having a movement control grip that is capable of performing switch between automatic operation mode and manual operation mode on the movement control grip. The grip comprises a grip body, having a square section, connec... | 05/06/2008 |
| 7363680 | Floor-cleaning machine with manual adjustment for two distinct and repeatable fluid flow rates A floor-cleaning machine (10) has a chassis (12) that is mobile on a surface and carries an agitating mechanism (14) to engage the surface. A fluid delivery system (18) conveys fluid from a reservoir (16) to the surface proximate t... | 04/29/2008 |
| 7362064 | Control arrangement for a cleaning appliance A cleaner for cleaning a surface comprises a floor-engaging portion for moving along the surface. A magnet and a hall effect sensor located in the cleaner handle generates a control signal. The control signal is provided to a control circuit which controls one or mo... | 04/22/2008 |
| 7247085 | Combination edger and grinder for floors A combined floor edger and grinder having a grinding disk which can be adjusted from engaging the floor while flat to engaging the floor along a front, back or side edge of the disk, depending on the height adjustment of the wheels on either side of the frame. The w... | 07/24/2007 |
| 7240396 | Floor cleaning apparatus A floor cleaner is provided for cleaning a floor, where the floor cleaner has a front and a rear and includes: a sweeper for sweeping the floor; a scrubber, connected to the sweeper and located in the rear of the sweeper, for wetting and cleaning the floor; and a bu... | 07/10/2007 |
| 7222390 | Clutchless self-propelled vacuum cleaner and nozzle height adjustment mechanism therefor A clutchless, direct drive, self-propelled vacuum cleaner includes a nozzle base having a suction inlet and a housing pivotally mounted on the nozzle base. A suction source is mounted to one of the nozzle base and the housing. A filter chamber is located in one of t... | 05/29/2007 |
| 7213298 | Clutchless self-propelled vacuum cleaner and nozzle height adjustment mechanism therefor A clutchless, direct drive, self-propelled vacuum cleaner includes a nozzle base having a suction inlet and a housing pivotally mounted on the nozzle base. A suction source is mounted to one of the nozzle base and the housing. A filter chamber is located in one of t... | 05/08/2007 |
| 7191678 | Electromotive adjustment device An electromotive adjustment device for adjusting a control element includes a housing and a gear mechanism which has a plurality of intermeshing gear wheels to define a drive train. In driving relationship with the gear mechanism is a drive motor which is constructe... | 03/20/2007 |
| 7172658 | Cleaning liquid dispensing in a mobile hard surface cleaner A hard surface cleaner includes a motorized scrub head, a fluid recovery device, a primary cleaning liquid component container, a cleaning agent container, a flow control device and a fluid flow path. The flow control device is configured to supply a flow of cleanin... | 02/06/2007 |
| 7168514 | Materials handling device and system A materials handling device includes a chassis, handle shaft pivotally mounted to the chassis for maneuvering the device, two rollers rotationally mounted to the chassis, battery pack supported on the handle shaft, electric motor and gearbox fitted in one roller in-... | 01/30/2007 |
| 7150068 | Light-weight self-propelled vacuum cleaner A vacuum cleaner power head (40) for vacuum cleaning and having two counter rotating agitators 52 and 54. Motor (60) rotates agitators (52) and (54) through transmission (70), and also rotates suction fan (65) ... | 12/19/2006 |
| 7076830 | Electronically commutated drive system for vacuum cleaner A self-propelled appliance, such as a vacuum cleaner includes a magnetic field sensor and magnet. A relative position between the magnetic field sensor and the magnet can be changed by a user of the appliance. The magnetic field sensor generates a signal indicating ... | 07/18/2006 |
| 7062816 | Surface cleaner with power drive A portable surface cleaning apparatus comprises a fluid dispensing system including at least one fluid supply tank, a dispensing nozzle connected to the fluid supply tank through a fluid supply conduit for applying a cleaning fluid to a surface to be cleaned, a flui... | 06/20/2006 |
| 7059004 | Floor surface treatment apparatus A floor surface treatment apparatus having a wheeled vehicle including a support for a floor surface treatment unit, the support being moveable relative to the vehicle. A floor surface treatment unit is pivotally carried by the support for swinging movement relative... | 06/13/2006 |
| 7043794 | Self-propelled vacuum cleaner with a neutral return spring A self-propelled vacuum cleaner includes a base having a suction inlet. An upright housing is pivotally mounted to the base. A suction source is disposed in one of the base and the upright housing to generate an airflow at the suction inlet. A dust collection chambe... | 05/16/2006 |
| 7013527 | Floor cleaning apparatus with control circuitry A floor cleaner is provided for cleaning a floor, where the floor cleaner has a front and a rear and includes: a sweeper for sweeping the floor, a scrubber, connected to the sweeper and located in the rear of the sweeper, for wetting and cleaning the floor; and a bu... | 03/21/2006 |
| 7000285 | Control circuitry for enabling drive system for vacuum cleaner A self-propelled appliance comprises a base, electric motor mounting the base, a handle moveably depending from the base and a drive wheel mounted in the base and operatively connected to the motor. The control circuits comprising an enable switch and a base switch ... | 02/21/2006 |
| 6988293 | Leaf collection system for a lawn blower/vacuum A leaf collection system for lawn blower/vacuums is disclosed. The collection system includes a port coupling fitted to the exhaust port of a blower/vacuum, a dust cover, and a unique disposable collection bag. The disposable collection bag is constructed of an envi... | 01/24/2006 |
| 6968594 | Liquid extraction machine with tow assembly An extraction machine for cleaning a floor surface has a front and a rear and is movable by an operator relative to the floor surface in a forward direction of travel to clean the floor surface. The extraction machine also has a cleaning solution dispenser capable o... | 11/29/2005 |
| 6800140 | Extraction cleaning with optimal cleaning speed An extraction surface cleaning apparatus is provided having an extraction head adapted to be moved over a floor surface to be cleaned, a handle mounted to the extraction head for grasping by a user and propelling the extraction head over the floor surface, and an ap... | 10/05/2004 |
| 6763544 | Apparatus for treating a floor surface Apparatus for treating the surface of a floor includes a wheeled vehicle having a generally central vertical longitudinal plane. A lift unit is mounted on the wheeled vehicle and is capable of up and down movement in the central vertical longitudinal plane of the ve... | 07/20/2004 |
| 6735812 | Dual mode carpet cleaning apparatus utilizing an extraction device and a soil transfer cleaning medium An apparatus performing multiple different cleaning operations for cleaning fabrics, floor coverings, and bare floor surfaces is disclosed. A device according to the present invention selectively utilizes soil transfer and solution extraction technology. In one embo... | 05/18/2004 |
| 6684452 | Dual cleaning mode carpet extractor A carpet extractor (10) operable in either a restorative cleaning mode or a maintenance cleaning mode includes a constant rate pump (96) which dispenses clean solution through a manually operated valve (98) to one of two lines (100, 102) having nozzles wh... | 02/03/2004 |
| 6530117 | Wet vacuum An improved wet vacuum is described which removes floor stripping chemicals and residual water left behind from a floor stripping machine. The vacuum system is portable, battery operated and houses a storage reservoir constrained via elastic straps on a r... | 03/11/2003 |
| 6519805 | Adjustable vacuum nozzle A vacuum unit used to vacuum lawn debris includes a vacuum unit body having at least first and second inlet openings and at least one flap that can be adjusted to selectively cover and open the second opening. The vacuum unit body includes a flap adjustme... | 02/18/2003 |
| 6355112 | Systems and methods for extracting liquid from floor coverings An extractor tool for extracting invasive fluid from a floor covering defining a floor surface. The extractor tool comprises a frame assembly, an extraction head, and a drive roller. The frame assembly defines a support surface. The extraction head is mou... | 03/12/2002 |
| 6308374 | Air filtering self-propelled upright vacuum cleaner Disclosed is a unique and novel air filtering, self-propelled upright vacuum cleaner. The filtration system utilizes a HEPA-rated air filter as a final filtering element. The disclosed vacuum cleaner contains numerous other features including a self-prope... | 10/30/2001 |
| 6282747 | Handle operated power drive link lockout A self-propelled upright vacuum cleaner is provided having a lower portion and an upright handle portion pivotally attached to the floor engaging portion for a pivotal motion between an upright storage position and a pivotal operating position including a... | 09/04/2001 |
| 6263540 | Compact utility type surface cleaning vehicle A utility type surface cleaning vehicle comprises a unitary frame utility type tractor defining a longitudinal axis and having a front end and a back end, left and right driven rear wheels and at least one steerable front wheel and a trailer connecting me... | 07/24/2001 |
| 6226830 | Vacuum cleaner with obstacle avoidance A vacuum cleaner is provided that is adapted to detect and display and/or avoid obstacles. In such vacuum cleaners the driving wheels and/or castor wheels that determine the direction of travel may be actively controlled to achieve, at the point in time o... | 05/08/2001 |
| 6199359 | Positioning unit for a yarn splicer A positioning unit for a yarn splicer mountable to a creel in a yarn winding operation includes a rolling unit attachable to the creel, a main support member secured to the rolling unit, and a slide unit supporting the yarn splicer. The slide unit is slid... | 03/13/2001 |
| 6182383 | Snow blower converter kit for collecting leaves A snow blower converter kit is provided for use with a snow blower. Such kit includes a mulcher blade and a squirrel cage adapted for being removably mounted on a drive shaft of the snow blower in concentric relationship between the conduit and the tines ... | 02/06/2001 |
| 6108862 | Hand grip and upper handle assembly for a self-propelled upright vacuum cleaner A self propelled upright vacuum cleaner is provided that has at least one drive wheel, a transmission for selectively driving the drive wheel in forward and reverse and propelling the cleaner in forward and reverse over a floor. A bag housing pivotally co... | 08/29/2000 |
| 6061869 | Vacuum cleaner provided with a suction nozzle with controllable electrical drive means A vacuum cleaner with a suction nozzle which is coupled to a handle on which a user of the vacuum cleaner can exert a pushing or pulling force for moving the suction nozzle over a surface to be cleaned. The suction nozzle is provided with an electrical dr... | 05/16/2000 |
| 6024678 | Vacuum cleaner leg exercise device A device for vacuuming, which is powered by the leg exercise motion of a user, includes a pair of bellows units which are mounted on the user's feet and a tank which is mounted on the user's back. A hand-held cleaning wand is connected to the tank by a fl... | 02/15/2000 |
