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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 7901476 | Peaky filter A peaky filter comprises a covering and a corresponding base, a supporting frame connected between the covering and the base, and a multifold filter covering the exterior of the supporting frame. The supporting frame includes plural transversely spaced first support... | 03/08/2011 |
| 7371267 | Wire filter cage An improved filter support structure for supporting filter media. The support structure includes two sections removably coupled together with an improved coupling assembly. The first section has a cross section presenting a first width spaced apart from a second wid... | 05/13/2008 |
| 7329296 | Filter bag and a filter device provided with such filter bag A filter bag (1) for a filter device includes a tubular, flexible, air-penetrable filter body (6) provided with a suspension arrangement at an unfolded end thereof. The suspension arrangement includes a rigid ring element (7) with outwardly prot... | 02/12/2008 |
| 7300481 | Method and device for cleaning filters for dust-laden waste gases The invention relates to a method for cleaning filters for dust-laden waste gases, including several filter elements (2) which are arranged vertically in a filter housing (1) and which have an upper open end (16) and a lower closed end (15 | 11/27/2007 |
| 7294163 | Cartridge filter A cartridge filter has a unitary upper fitting and a separate gasket which permits a single base filter to be used with a wide range of tube sheet openings, simply by selecting the appropriate gasket. In one embodiment, the gasket is bonded to the unitary upper fitt... | 11/13/2007 |
| 7287575 | Component for supporting a filter member, a device including a tubular filter member and said component, a plate heat exchanger including a tubular filter member and said component The invention relates to a component (20) for supporting a tubular filter member (15) in a portable channel (2) in a plate heat exchanger (1). The invention also relates to a device including the component (20) and the filter membe... | 10/30/2007 |
| 7208025 | Method and apparatus for filtering air passages in an alternator A filter to clean the air entering an alternator in a vehicle used in a dirty environment such as a crop harvesting machine includes a mesh filter which is coupled to an air intake of the alternator. The filter is constructed of a mesh material which is flexible and... | 04/24/2007 |
| 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 |
| 7186287 | Disposable filter for a fluid handling device and a method for using the same A fluid handling device having a support frame and a plurality of filter frames attached thereto. Each of the filter frames has an outer frame member that removably secures a filter; the filters being either a planar filter, pocket filter, or multiple pocket filter.... | 03/06/2007 |
| 7186284 | Filter mounting system A filter mounting system for use in a baghouse having a tubesheet with a plurality of openings. The filter mounting system includes filter media and a tubular mounting collar attached to the filter media to mount the filter media relative to the tubesheet. The filte... | 03/06/2007 |
| 7156892 | Filter protection device for preventing damage to an air filter A filter protection apparatus includes a frame of a closed curve defining an inner space isolated from surroundings, the frame having a shape of a filter securing part for securing an air filter, an attaching part for attaching the frame to a filter securing part, a... | 01/02/2007 |
| 7134166 | Upright vacuum cleaner with cyclonic airflow A vacuum cleaner includes a first housing defining a cyclonic airflow chamber and a second housing defining a main suction opening that is in communication with an inlet of the cyclonic chamber. A suction source has a suction airstream inlet in communication with an... | 11/14/2006 |
| 7131165 | Upright vacuum cleaner with cyclonic airflow A vacuum cleaner includes a first housing defining a cyclonic airflow chamber and a second housing defining a main suction opening that is in communication with an inlet of the cyclonic chamber. A suction source has a suction airstream inlet in communication with an... | 11/07/2006 |
| 7128073 | Method and device for left atrial appendage occlusion Disclosed is an occlusion device for use in a body lumen such as the left atrial appendage. The occlusion device includes an occlusion member and may also include a stabilizing member. The stabilizing member inhibits compression of the left atrial appendage, facilit... | 10/31/2006 |
| 7108738 | Filter element and mounting method The present invention relates to an apparatus for filtering a gas or liquid stream such as a natural gas stream. The apparatus includes a closed vessel having a longitudinally extending length, an initially open interior, an input port at one extent and an output po... | 09/19/2006 |
| 7097681 | Structure of filtering bag combination An improved filtering bag combination having an increased area of filtering and a longer life of use. The improved structure includes a filtering member with multiple folds to cover a support formed of a plurality of rods. The rods of the support have a plurality of... | 08/29/2006 |
| 7059481 | Filter element A filter element (10) having a supporting body (11) around which a filter medium (12) is wound. The filter medium (12) is a weldable material and is sealingly affixed to the supporting body (11) two radial weld seams (18) an... | 06/13/2006 |
| 7014685 | Filter element and mounting method The present invention relates to an apparatus for filtering a gas or liquid stream such as a natural gas stream. The apparatus includes a closed vessel having a longitudinally extending length, an initially open interior, an input port at one extent and an output po... | 03/21/2006 |
| 7008467 | Air cleaner and method of filtering A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally includes a z-filter media, arranged in a straight through configuration, ... | 03/07/2006 |
| 6991665 | Evertible filter wrap with straps A filter wrap for a cylindrical filter has a sheet with an interior side facing the filter when the sheet is wrapped on the filter, and an exterior side. It also has an edge defining a main opening to the interior for receiving the filter. At least one strap is prov... | 01/31/2006 |
| 6966444 | Filter with snap-fit filter bag A filter element includes a bag ring which is snap fitted into the filter vessel sidewall and retains both the filter element and a filter basket in the desired location in the vessel until removed. ... | 11/22/2005 |
| 6966940 | Air filter cartridge A filter element, a safety element and fluid cleaner assembly. The fluid cleaner assembly generally includes a housing having a cover and a primary fluid cleaner section. The element generally includes z-filter media, arranged in a straight through configuration, an... | 11/22/2005 |
| 6949188 | Filter assembly having improved sealing features A filter assembly including a filter housing defining an interior chamber with an open end, a filter disposed within the interior chamber, and a cover removably positioned over the open end to enclose the interior chamber. The filter housing defines an axially-facin... | 09/27/2005 |
| 6932857 | Multi-stage collector and method of operation A multi-stage collector of the type used to collect particles from industrial gas. The collector can contain multiple narrow and wide zones formed by a plurality of parallel corrugated plates. Contained in the narrow zones can be elongated electrodes with sharp lead... | 08/23/2005 |
| 6905529 | Wire Filter cage An improved filter support structure for supporting filter media. The support structure includes two sections removably coupled together with an improved coupling assembly. The first section has a cross section presenting a first width spaced apart from a second wid... | 06/14/2005 |
| 6802879 | Vacuum collection bag and method of operation The present invention is an improved vacuum collection bag for vacuum cleaners and other appliances. By employing an impermeable bag and an air-permeable particle separator together with a tight seal against a vacuum system dirt tube in place of a conventional paper... | 10/12/2004 |
| 6790250 | Wire filter cage An improved filter support structure for supporting filter media. The support structure includes two sections removably coupled together with an improved coupling assembly. The first section has a cross section presenting a first width spaced apart from a second wid... | 09/14/2004 |
| 6786947 | Washable cloth vacuum cleaner filter bag having a resealable opening for emptying vacuumed debris A washable cloth vacuum cleaner filter bag for use on wet/dry vacuum cleaners and in central vacuum cleaner systems includes a first opening for receiving vacuumed debris, means for attaching the first opening to the inlet of the vacuum cleaner or system, and a seco... | 09/07/2004 |
| 6726735 | Unitary filter cartridge A filter cartridge having a unitary construction with a pleat pack filter formed securely about an interior screen for installation in the tube sheet of a baghouse. Opposite ends of the pleat pack are integrally received within a bottom end cap and an upper fitting.... | 04/27/2004 |
| 6706085 | Filter bag cage A filter assembly for filtering particulates out of a stream of gas, which includes an elongated filter bag made out of fabric with a plurality of pleats intermediate its ends with a support cage made from a plurality of wires on the outside of the bag having portio... | 03/16/2004 |
| 6676722 | Air filter assembly capable of top and bottom loading A baghouse filter having a filter media and an end cap is provided. The filter media has a longitudinal axis, and the end cap has an outer peripheral side wall. The side wall has first and second edges. A first recessed channel extends between the first a... | 01/13/2004 |
| 6626970 | Wire filter cage An improved filter support structure for supporting filter media. The support structure includes two sections removably coupled together with an improved coupling assembly. The first section has a cross section presenting a first width spaced apart from a... | 09/30/2003 |
| 6576146 | Filtration element employing improved backwash feature and method of utilizing same A diffuser rod for use in a filter stalk having deflector disks rigidly mounted thereon to deflect liquid radially during the backwash process is disclosed. A backwashable filter element containing a diffuser plate that is located within the filter member... | 06/10/2003 |
| 6554138 | Cleaning device The invention relates to a device for cleaning the filter surface of a filter element, through which the liquid to be filtered flows, during a filtration operation using a pressurised cleaning fluid. According to an improvement of the invention, a distrib... | 04/29/2003 |
| 6547856 | Filter system A vacuum cleaner having a reduced velocity chamber with a high velocity air inlet, an electric motor, a rotary blade driven by the motor to create a vacuum in the chamber, an outlet for exhausting air from the chamber, which air flows in a selected path f... | 04/15/2003 |
| 6488744 | Filter system A vacuum cleaner having a reduced velocity chamber with a high velocity air inlet, an electric motor, a rotary blade driven by the motor to create a vacuum in the chamber, an outlet for exhausting air from the chamber, which air flows in a selected path f... | 12/03/2002 |
| 6451079 | Pocket filter having inner frames mounted within an outer frame The pocket filter exhibits an outer frame made of plastics material and several adjacent filter elements arranged in the outer frame. The outer frame is composed of opposing limb profiles, a base profile and a closing profile which each have an essentiall... | 09/17/2002 |
| 6440188 | Air filter assembly capable of top and bottom loading A baghouse filter having a filter media and an end cap is provided. The filter media has a longitudinal axis, and the end cap has an outer peripheral side wall. The side wall has first and second edges. A first recessed channel extends between the first a... | 08/27/2002 |
| 6364921 | Air filter assembly for filtering air having particulate matter An air filter assembly for removing particulate matter from an incoming dirty air stream. The assembly includes a housing having an inlet, an outlet, a dirty air chamber and a clean air chamber and an elongated filter element arranged within the dirty air... | 04/02/2002 |
| 6358292 | Pleated filter element with reusable mounting plate A filter cartridge for use in a filter apparatus having a tube sheet is provided. The filter cartridge has a tubular filter with opposite ends, a mounting cap and a mounting plate. The mounting cap is secured to one end of the tubular filter and has a fir... | 03/19/2002 |
