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| Number | Title | Issue Date |
| 8020252 | Dual motor upright vacuum cleaner An upright vacuum cleaner having dual cleaning motor and fan units is provided having a cleaning head engagable with a floor and a suction nozzle and a brush roller rotatably mounted therein. A first motor and fan unit is mounted in the vacuum cleaner for producing ... | 09/20/2011 |
| 7805807 | Dual motor upright vacuum cleaner An upright vacuum cleaner having dual cleaning motor and fan units is provided having a cleaning head engagable with a floor and a suction nozzle and a brush roller rotatably mounted therein. A first motor and fan unit is mounted in the vacuum cleaner for producing ... | 10/05/2010 |
| 7653965 | System and method for carpet cleaning A system and method for carpet cleaning for cleaning carpets along longer runs from a central tank and vacuum assembly while using less chemicals. The system and method for carpet cleaning includes a central tank and vacuum assembly, a wand assembly, and a hose asse... | 02/02/2010 |
| 7386915 | Dual motor upright vacuum cleaner An upright vacuum cleaner having dual cleaning motor and fan units is provided having a cleaning head engagable with a floor and a suction nozzle and a brush roller rotatably mounted therein. A first motor and fan unit is mounted in the vacuum cleaner for producing ... | 06/17/2008 |
| 7363679 | Vacuum system A vacuum system has a cabinet that can be mounted to a wall. The cabinet includes a hose storage compartment with a hose drive assembly for automatically extending and retracting a vacuum hose. A portable vacuum unit can be removably docked to the cabinet and connec... | 04/29/2008 |
| 7337491 | Pressure washing system, components and methods According to certain embodiments of the invention, a pressure washing system delivers a cleaning fluid under pressure to a surface to be cleaned, and includes a fluid pump unit for supplying the fluid to the surface. A fluid collector captures wastewater runoff of t... | 03/04/2008 |
| 7179062 | Integrated shop vacuum and air compressor system An integrated, yet divisible shop vacuum and air compressor system is provided with a blower, a wet and dry vacuuming section and a compressor section, each of which is mounted on a easy to relocate trolley. The vacuum system has a separate motor from the compressor... | 02/20/2007 |
| 6966356 | Air-ventilator with high efficiency thermal exchanger and air filter A compact air-ventilator with high efficiency thermal exchanger and air filter in which the thermal exchanger utilize a light-weight assembly of parallelly stacked thin metallic plates with pre-formed spaces. The high efficiency air filter includes a combination of ... | 11/22/2005 |
| 6381803 | Vacuum cleaner A vacuum cleaner capable of drawing different current levels in vacuum and blower modes is disclosed. The vacuum cleaner comprises at least one electric motor and an impeller disposed in an impeller housing, the impeller driven by the at least one electri... | 05/07/2002 |
| 6260235 | Vacuum cleaners A vacuum cleaner has a central passage formed by the inside of a casing. The vacuum cleaner is conventional except that two electrically driven fans are provided. The fans are driven respectively by a DC motor 16 and an AC motor. The motors are normally s... | 07/17/2001 |
| 6173473 | Electric cleaner efficient for carpet and its head An electric cleaner head including a first bank of a plurality of spaced apart nozzles each including an interior passage having a narrower width than length slit. Sources of air flow including at least one suction source are connected to spaces between t... | 01/16/2001 |
| 6004093 | Portable air-blowing working machine A portable air-blowing working machine includes a prime mover and an air-blowing system. The air-blowing system incorporates first-stage and second-stage centrifugal air-blowing sections, which are rotatably driven by an output shaft of a prime mover and ... | 12/21/1999 |
| 5893194 | Vacuum system A vacuum system for a building, in particular, a building with multiple dwellings. There is a fan to develop suction mounted in a compartment having a dust inlet and a dust outlet. A motor drives the fan. The motor has a drive shaft to extend into the fan... | 04/13/1999 |
| 5623744 | Vacuum cleaner The present invention relates to vacuum systems and more particularly, to systems for cleaning up waste materials and/or recovering materials which might otherwise be considered waste, particularly in industrial uses. The instant invention includes a mean... | 04/29/1997 |
| 5379482 | Cleaning system for textile machines A cleaning system for textile machines is comprised of two essentially identical travelling cleaners which can travel separately from one another along a line of textile machines, each of which has a boat-shaped suction nozzle which engages with a station... | 01/10/1995 |
| 5375292 | System and method for vacuum extraction of foreign materials The suction capabilities of a original-equipment (O.E.) extractor providing inadequate suction are enhanced, thereby avoiding the need to purchase another and more expensive extractor, by the addition to it of a vacuum booster. The booster contains its ow... | 12/27/1994 |
| 5311640 | Dental vacuum apparatus A dry vacuum apparatus for a dental operatory features an in-line configuration wherein a power unit subassembly is directly mounted upon a collection tank with a pair of brushless DC vacuum motor fan units in axially aligned, vertically stacked reverse r... | 05/17/1994 |
| 5287684 | Debris collection vehicle A debris collection vehicle including a vehicle chassis mounted on wheels, a motor carried on the vehicle and a debris pick-up apparatus mounted on the vehicle and powered by the motor for collecting debris off of the ground. The debris pick-up apparatus ... | 02/22/1994 |
| 5179762 | Vacuum cleaner A vacuum cleaner having a housing having a front and a rear and laterally opposite sides, and an opening in each side of the housing permitting communication with the interior of the housing. Each opening is generally located intermediate the front and re... | 01/19/1993 |
| 5168599 | Wet and/or dry vacuum cleaning unit A vacuum system having a closed air flow loop for cleaning rugs and floor or other surfaces. There is a vacuum source having a suction side and a controlled air flow pressure side (exhaust side). A head assembly is adapted to ride on the rug or floor or o... | 12/08/1992 |
| 5134752 | Vacuum cleaner A vacuum cleaner includes two blowers connected in series, one upstream of the filter and the other downstream.... | 08/04/1992 |
| 5099543 | Pump system for cleaning apparatus The cleaning apparatus includes a support device for supporting a spray member for receiving and spraying hot liquid onto a surface to be cleaned and a vacuum head for withdrawing liquid and material from the surface by reduced pressure. Also included are... | 03/31/1992 |
| 5095578 | Vacuum system for cleaning apparatus The cleaning apparatus has a liquid spray device and a vacuum head attached to a movable support member. A container is provided for holding a supply of liquid. A liquid pump has its inlet coupled to the container and its outlet coupled to a heat exchange... | 03/17/1992 |
| 5054157 | Combination stand alone and canister vacuum cleaner A vacuum cleaner is provided that is alternatively operable as a stand alone, upright vacuum cleaner and as a canister vacuum cleaner. The vacuum cleaner includes a nozzle assembly having a beater brush, a suction fan and a motor that drives both the beat... | 10/08/1991 |
| 4996737 | Vacuum cleaner power nozzle An air booster power nozzle for use in combination with a vacuum cleaner having a motor/fan unit for creating a vacuum, the power nozzle including an enclosed base having a suction inlet for air and an air outlet spaced from the suction inlet, a power sou... | 03/05/1991 |
| 4829625 | Portable vacuum cleaner/air compressor with light A motor assembly including a motor, a shaft, a gear assembly and an air compressor, encompassed by a vacuum casing and an impeller housing encompassing a number of evenly spaced impellers and impeller casings, the impellers being driven by the shaft of th... | 05/16/1989 |
| 4723337 | High pressure carpet or rug cleaning apparatus A single unit readily portable carpet and rug cleaning apparatus receives water directly from any spigot into a high pressure pump without the necessity for a clean water holding tank. Shampoo or cleaning concentrate from an outside container is delivered... | 02/09/1988 |
| 4688292 | Vacuum cleaning apparatus A vacuum cleaning apparatus has a main suction box (11) with a dirt collecting container (32) and an auxiliary suction box (16) with a flexible hose (14) laid therein in the form of a loop (15), with the flexible hose being guided outwardly through an ope... | 08/25/1987 |
| 4628566 | Filtering system for paper handling machines A filter apparatus is disclosed for removing contaminants discharged from paper handling machines in data processing rooms. Such contaminants include paper dust and carbon black from high speed paper handling machines such as computer printers, paper cutt... | 12/16/1986 |
| 4580309 | Self-contained multi-function cleaning system A compact, self-contained central vacuum cleaning machine has expandable vacuum suction and pressure capacities and variable vacuum suction. The machine performs a multiplicity of cleaning operations including dry vacuuming, wet vacuuming, hydro-extractio... | 04/08/1986 |
| 4531256 | High vacuum apparatus A high vacuum apparatus includes a vacuum tank having a pair of upstanding conical side walls arranged with the centers thereof extending outwardly in opposite directions. A peripheral side wall structure interconnects the peripheral edges of the conical ... | 07/30/1985 |
| 4475264 | Dual inlet muffler assembly for truck hot water vacuum extraction machine An elongated hollow plastic body mounts a first plastic exhaust pipe of L-shaped configuration which passes completely through the body. Its inlet end is connected to the positive air pressure discharge of one vacuum pump connected to a closed dirty water... | 10/09/1984 |
| 4233706 | Apparatus for cleaning of large scale textile coverings, especially carpets and wall to wall carpeting An improvement is disclosed in an apparatus of the type employed for cleaning textile coverings, especially rugs and carpeting where the apparatus is provided with at least one spray jet connected to a supply of cleaning fluid and a suction jet is connect... | 11/18/1980 |
| 4231133 | Wet vacuum machine A suction power unit for a wet vacuum machine includes a dome-shaped housing closed off by a bottom wall with an inlet defined in the bottom wall and a centrifugal blower aligned with the inlet. A second wall is parallel to the bottom wall and spaced ther... | 11/04/1980 |
| 4225999 | Multi-motor suction cleaner construction A multi-motor suction cleaner of the upright type having a power-driven rotary brush operated in the usual manner with a low-suction, high-volume airflow produced by a typical first motor-fan unit in the cleaner suction nozzle housing to carry out a usual... | 10/07/1980 |
| 4202070 | Vacuum apparatus with concrete housing, and method of constructing same A car wash vacuum cleaner and the method of making same is disclosed. The car wash vacuum cleaner comprises an inner shell means. A plurality of vacuum motors are secured within the inner shell means and adapted to provide a suction means therein. A monol... | 05/13/1980 |
| 4137599 | Suction system for cleaning carpet and the like The invention generally relates to cleaning of carpets, upholstery and the like by "wet" processes such as the hot water extraction process. In particular, the invention provides an improved method and apparatus for cleaning surfaces comprised of fabric o... | 02/06/1979 |
| 4087881 | Carpet cleaning machine A carpet cleaning machine wherein cleaning fluid is continuously dispensed to an in-place carpet from manually manipulatble tools and wherein dirty fluid is continuously picked up from the carpet and conveyed to a dirty fluid collecting means. The machine... | 05/09/1978 |
| 4050112 | Industrial floor cleaning machine with vacuum dust collector A heavy-duty floor-cleaning machine for such work as cleaning encrusted diamond-plate catwalks in ship engine rooms comprises a housing on wheels spacing it from the floor with the housing containing a rotating cylindrical wire brush driven by belts by an... | 09/27/1977 |
| 4006511 | Sweeper with recirculation hood and independent filter system A mobile street sweeper employs a pickup hood through which air is circulated to entrain and pick up debris. The air circulation system includes a main blower and a smaller, auxiliary blower. The main blower inlet is connected to the debris hopper of the ... | 02/08/1977 |
