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| Number | Title | Issue Date |
| 8011059 | Low-profile air duct fitting for passage of air through narrow openings and method of using the same An air duct comprises a duct wall bounding an airflow channel that extends through the air duct along a flow path. The airflow channel has a plurality of cross-sections that are bounded by the duct wall and that are perpendicular to the flow path. A first one of the... | 09/06/2011 |
| 7917990 | Apparatus for duct cleaning A duct cleaning apparatus for cleaning ventilation ducts in a household environment comprises a typical household or light industrial vacuum cleaning having a sealed container, a blower having suction and exhaust, a first flexible hose attached to the suction port a... | 04/05/2011 |
| 7716781 | Suction motor for vacuum cleaner A cleaner (1) has a DC brushless motor (15) with stator (203) and rotor (212). Stator is mounted on a shaft and rotor is mounted inside and to a tubular body (207) about stator (203). Impeller (17) is mounted to and o... | 05/18/2010 |
| 7690075 | Central vacuum cleaner control, unit and system with contaminant sensor A central vacuum cleaning system 3 has a central vacuum unit 17 with a motor 10, a motor compartment 19, and a vacuum chamber 25. The system 3 also has a control circuit 1 for controlling power to the motor 10,... | 04/06/2010 |
| 7653962 | Retractable hose for central vacuum cleaning system The invention includes a central vacuum system for use in a dwelling. The system features a vacuum unit having an exhaust outlet and a vacuum inlet connected to a fixed gooseneck shaped tube, a flexible cloth hose having a first end and a second end, where the first... | 02/02/2010 |
| 7624472 | Pipe coupler for in-wall central vacuuming system An in-wall central vacuuming system has a central receptacle and a vacuum pump for drawing dirt and dust into a network of piping and into the receptacle. The system includes a series of ports strategically located around an interior environment of a residential or ... | 12/01/2009 |
| 7603743 | Structure for connecting a dust collecting hose of a central vacuum cleaning system The present invention discloses a structure for connecting a dust collecting hose of a central vacuum cleaning system, which is capable of connecting a dust collecting hose and a collecting pipe, without opening a closed plate by hand. The structure for connecting a... | 10/20/2009 |
| 7464436 | Central vacuum cleaner and its central unit A central vacuum cleaner including a central unit provided with a suction joint and an exhaust joint as well as a suction hose. According to the invention, the central vacuum cleaner includes an operating unit (1) having adaptors for attaching the central uni... | 12/16/2008 |
| 7426768 | Air duct cleaning apparatus An apparatus for cleaning ducts of a heating/ventilation/air conditioning (HVAC) system is provided. In one embodiment, a pod has a vacuum chamber therein, a drive motor located within the pod and configured to receive a removable drive shaft therein, and a conduit ... | 09/23/2008 |
| 7377005 | Vacuum apparatus A vacuum hose for moving particulate materials such as grain from a storage bin is formed from separate pieces of metal tube and flexible rubber hose arranged alternately and connected end to end by hose clamps. The pieces are at least 12 inches long and less than 3... | 05/27/2008 |
| 7370388 | Air cleaner for portable engine An air cleaner for a portable engine, includes an air cleaner case attached to an upper part of an engine body of the engine. Preferably, the air cleaner case is supported on an upper wall of a shroud covering the engine. Preferably, the air cleaner case is formed i... | 05/13/2008 |
| 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 |
| 7357142 | Apparatus for continuously aspirating a fluid from a fluid source An apparatus for continuously aspirating a fluid from a fluid source. A vacuum source is operatively connected to a first container forming a first chamber and a second container forming a second chamber. A fluid collection tube provides communication between the fl... | 04/15/2008 |
| 7343640 | Automatic festooned hose apparatus for public transit vacuuming systems and methods for using same An automatic festoon hose handling system for mass transit vehicles such as buses or the like, includes a vacuum or pressurized fluid source, a hose connected to the source, and a lance portion disposed on a distal end of the hose. A festoon assembly is positioned f... | 03/18/2008 |
| 7341612 | Disposable vacuum bags A disposable open bag for a power tool such as a Shop-Vac cleaner has a mounting plate with an opening for receiving debris from the intake of the power tool. The mounting plate is also provided with a vent opening(s), e.g., to prevent the bag from closing in on the... | 03/11/2008 |
| 7332005 | Filtration bag replacement system for a floor care appliance A floor care appliance such as a vacuum cleaner is provided having an filtration bag changing assembly located in the filtration compartment. A supply of filtration material is packaged in a container in the form of a continuous tube to be fed into the filtration co... | 02/19/2008 |
| 7328478 | Register inlet apparatus for a central vacuum cleaning system An inlet apparatus for central vacuum cleaning systems is described that can be integrated with registers commonly used with heating and air conditioning vents in residential or commercial buildings. In particular, the apparatus opens to provide a vacuum inlet that ... | 02/12/2008 |
| 7325332 | Clothing dryer A clothing dryer capable of removing impurities, such as dust, accumulated in a hot air outlet duct thereof. The clothing dryer includes a drying tub to dry laundry contained therein using hot air supplied thereto, a hot air outlet duct to discharge the hot air, com... | 02/05/2008 |
| 7322070 | Anti jamming device for a vacuum hose A vacuum system has a cabinet that can be mounted to a wall. The cabinet includes a hose connectable to a vacuum source. The hose is extendible from the cabinet between extended and retracted positions. A rotatable shaft drives the hose and a power source causes the... | 01/29/2008 |
| 7318249 | Vacuum collector having sweeping device A vacuum collector includes a filter housing, a filter member disposed in the filter housing, and a sweeping device disposed in the filter member for sweeping the filter member, to sweep of dirt from the filter member, and to allow the dirt to be removed from the fi... | 01/15/2008 |
| 7313839 | Sweeping system with front removable hopper A surface maintenance apparatus is described, having a sweeping system positioned near the front or leading edge of the apparatus. The sweeping system includes a plurality of brushes and a removable hopper for collecting debris. The sweeping system is capable of bei... | 01/01/2008 |
| 7306012 | Retractable hose extension for a vacuum A retractable hose extension for a vacuum having an expandable hose within a containment structure, a first coupling at the first end of the hose and in the first end of the containment structure for connecting the hose to a vacuum, a valve at the second end of the ... | 12/11/2007 |
| 7296321 | Tabletop wood-waste-collecting machine A tabletop wood-waste-collecting machine includes a support frame, a machine base, a guide shade, a work faceplate and a dust-collecting unit. The machine base has its opposite upper side bored with plural transverse assistant guide grooves and its central portion b... | 11/20/2007 |
| 7293324 | Vacuum cleaner with level control A vacuum cleaner has a housing that includes a separation chamber and collection chamber, a floor unit with a suction opening, and a passage between the suction opening and separation chamber. A suction source establishes a stream of air from the suction opening to ... | 11/13/2007 |
| 7293320 | Vacuum attachment for converting a standard vacuum into a centralized dust collection system A vacuum attachment includes an aerodynamic bell housing, a distribution plate defining blast gate openings, blast gates, and means for biasing each gate toward a closed configuration. The plate attaches to the housing's first end. The gates attach to the plate for ... | 11/13/2007 |
| 7278811 | Land and sea transport system for particulate materials A multi-modal system for transport of particulate material includes a plurality of ship based hoppers mounted within the hold of a ship. Each such hopper includes a container for particulate material, a container inlet by which particulate material can be loaded int... | 10/09/2007 |
| 7275279 | Vacuum cleaner wand adapters and handle assemblies including the same Vacuum cleaner wand adapter for coupling a vacuum cleaner handle to a wand implement of the vacuum cleaner including a housing defining an inner passage for receiving part of the handle and part of the wand implement, a first locking mechanism arranged on the housin... | 10/02/2007 |
| 7263743 | Motor mount assembly A motor mounting assembly includes a motor mount member having a first and second generally opposing sides. A generally U-shaped channel is formed in the second side of the motor mount member extending around its periphery to form a lip extending from the first side... | 09/04/2007 |
| 7260868 | Simple dust collector A simple dust collector includes a housing, a base plate horizontally separating the interior of the housing to form a motor chamber for fix a motor to rotate a fan covered by a fan cover under the base plate. A sucking passageway and a wind-exhausting hole are form... | 08/28/2007 |
| 7214011 | Key cutting machine A key cutting machine having a vacuum port connected to the housing and capable of removeably connecting a vacuum tube thereto so that when the vacuum tube is connected to the vacuum port the vacuum tube is capable of collecting key shavings created during a key cut... | 05/08/2007 |
| 7201785 | Dust collector for vacuum device A dust collector includes a base, a cover, and a barrel disposed between the base and the cover. The barrel includes a lower frame, an upper frame, one or more intermediate frames, and one or more telescopic tubes selectively secured to the frames, to form a spatial... | 04/10/2007 |
| 7191488 | Device for setting up central vacuum cleaning installations A device for simple setting up of stationary central vacuum cleaning installations in dwellings or the like. The device is in the form of a housing (6) with the purpose of accommodating a conventional vacuum cleaner (7) of the type that comprises an in... | 03/20/2007 |
| 7174602 | Vacuum trash insertion receptacle A vacuum trash insertion receptacle includes an aesthetically shaped housing providing a trash tube for the insertion and transportation of garbage to a trash receptacle assembly. A control assembly in communication with a gate monitoring assembly, an interactive mo... | 02/13/2007 |
| 7168127 | Vacuum cleaner handle assemblies and adapters mating therewith Handle assembly for a vacuum cleaner including a handle portion having a tubular hand-gripping portion, a tubular wand-engaging portion and a metal tube extending from the wand-engaging portion. The handle portion defines a cavity at a rear for receiving an adapter ... | 01/30/2007 |
| 7168126 | Central vacuum cleaner having an energy recovery ventilator system A central vacuum assembly including a vacuum cleaning apparatus, a ventilation apparatus, a heat exchanger for transferring heat energy between air in the vacuum cleaning apparatus and air in the ventilation apparatus. Optionally, a fan for circulating air within th... | 01/30/2007 |
| 7165289 | Animal shaped toy recovery and storage device A recovery and storage device suitable for picking up children's toys and placing them in a storage container has an appearance of a novelty animal, primarily an elephant, including an anatomical frame member with a vacuum motor integrated with a vacuum housing incl... | 01/23/2007 |
| 7159270 | Vacuum cleaner adapters and assemblies including the same Adapter for connecting a vacuum cleaner hose to a canister housing or a handle assembly and hose assemblies including the same. One adapter includes an outer sleeve matable with the canister housing and having electrodes, a hose engagement sleeve arranged at least p... | 01/09/2007 |
| 7152272 | On-board vehicle vacuum cleaner A vacuum cleaning system for a vehicle includes a console (12), which may be centrally positioned between the front seats (16) of the vehicle. A canister (10), in the form of a drawer to the console, is selectively removed, when vacuuming is to ... | 12/26/2006 |
| 7152275 | Dirt container for cyclonic vacuum cleaner A vacuum cleaner has a housing including a nozzle assembly and a canister assembly. A dirt container is connected to the housing. The dirt container includes a collection chamber and a combined handle and inlet flow passageway. An airstream conduit conveys a vacuum ... | 12/26/2006 |
| 7146677 | Energy saving vacuum system for particle, mist, and fume collection An improved energy-efficient vacuum system for machine shop dust, particulate matter, and the like. Blast gates, including large-diameter blast gates, control the flow of vacuum generated by a dust collector to individual machines that may or may not accommodate vac... | 12/12/2006 |
