Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8187352 | Filter A filter bag is longitudinally formed in a frusto-conical shape The filter bag has a plurality of radially extending members that form a propeller shaped cross-section, and a propeller-shaped molded bottom that enhances dust fall from the exterior. A frusto-conicall... | 05/29/2012 |
| 8075650 | System, method, and apparatus for mounting a filter bag to a wet/dry vacuum The present disclosure provides a method, apparatus, and system to mount a filter bag to a wet/dry vacuum cleaner by providing an adapter for mounting the filter bag to a drain opening in the wet/dry vacuum cleaner drum and restricting the typical vacuum port, forci... | 12/13/2011 |
| 8057565 | Air conditioning apparatus An air conditioning apparatus is disposed above an air conditioned space. The air conditioning apparatus includes a case, a bottom surface panel, a filter, and a filter support part. The bottom surface of the case is open. The bottom surface panel covers part of the... | 11/15/2011 |
| 8029585 | Pocket filter assembly A pocket filter assembly includes a frame structure having a plurality of filter pocket openings and a corresponding plurality of filter pockets, each filter pocket having a pocket mouth securely sealed in a corresponding filter pocket opening. The frame structure i... | 10/04/2011 |
| 7964007 | Filter bag for use in dust collector Provided is a filter bag for use in a dust collector which increases a filter area greatly even with a simple structure, and which makes size of the dust collector compact, to thereby reduce an installation area of the dust collector, and uniformly distributing an a... | 06/21/2011 |
| 7964006 | Bag type filter structure The present invention discloses a bag type filter structure including a filter frame module and filter bags. The filter frame module has a frame edge at each side of the perimeter of the filter frame module, and connecting ribs between two opposite frame edges for p... | 06/21/2011 |
| 7776117 | Air filtration units of the type comprising filtration bags An air filtration unit, includes a filter cartridge (4) of the filtration bag (6) type, the bags (6) being arranged vertically and held extended by appropriate fixing elements (16, 17), between two support structures (12, 13). The ... | 08/17/2010 |
| 7438736 | Filter bag structure A filter bag structure for use in a baghouse that has a tubesheet with a plurality of openings. The filter bag structure includes a substantially cylindrical filter bag having an axial end portion formed into a cuff. The filter bag has filtration media of a substant... | 10/21/2008 |
| 7404835 | Collection device with self sealing retention system A debris collection device with a self cleaning retention system that is designed for powered tools such as a sander. One embodiment of the system has an inflatable collection bag and a bag retention system, which further includes an integral bag adapter nozzle for ... | 07/29/2008 |
| 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 |
| 7341616 | Apparatus and method for the removal of particulate matter in a filtration system A particulate filtration system for removing particulates suspended in a fluid include, in an exemplary embodiment, a filter element and a pre-collector body component operably connected to the filter element. The pre-collector body component is capable of receiving... | 03/11/2008 |
| 7341173 | Exhaust gas diffuser and filter system for a pneumatic nail gun The exhaust gas diffuser and filter system for a pneumatic nail gun provides for the diffusion and filtering of exhaust gas, which is typically pressurized air, generated by the pneumatic nail gun during usage thereof. The system includes a diffuser plate adapted fo... | 03/11/2008 |
| 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 |
| 7310854 | Dust cover of vacuum cleaner A dust cover of a vacuum cleaner is installed to be separable from a dust collecting chamber so as to open/close the dust collecting chamber in which a dust bag filtering sucked dust is mounted, and has a support part to which the dust bag is mounted at its inside, ... | 12/25/2007 |
| 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 |
| 7279137 | Burners and combustion apparatus for carbon nanomaterial production The invention provides improved burners, combustion apparatus, and methods for carbon nanomaterial production. The burners of the invention provide sooting flames of fuel and oxidizing gases. The condensable products of combustion produced by the burners of this inv... | 10/09/2007 |
| 7261757 | Slip-rib filter gasketing There is provided a framed filter for insertion into a filter housing having a frame surrounding at least part of a filtration media with a fluid inlet face and a fluid outlet face, the frame comprising at least one longitudinally extending sidewall portion provided... | 08/28/2007 |
| 7258709 | Vacuum cleaner bag docking assembly An improved bag docking assembly for aligning a vacuum bag for engagement with a dirty air outlet nozzle on a vacuum cleaner, and for retaining the vacuum bag in the position of engagement. The assembly incorporates an anchor member and a mounting member. The anchor... | 08/21/2007 |
| 7217307 | Dust collector with an invertible wind exhausting case A dust collector with an invertible wind exhausting case includes a wind exhausting case having an upper and lower cover, which is respectively provided with two threaded holes of the same size in two lateral sidewalls. Two bolts combine tightly the lower cover with... | 05/15/2007 |
| RE39595 | Vacuum cleaner tank assembly A vacuum cleaner filter bag retainer includes slots on each side which receive a cardboard plate attached to a filter bag. The plate is slid into the slots of the filter bag retainer such that openings in the plate and bag match with an opening in the filter bag ret... | 05/01/2007 |
| 7211190 | Strainer wall for the screening off of a suction space A strainer wall (1) to screen off a suction space (3) and a suction duct (5) connected to it in an emergency cooling system of a nuclear power plant includes at least one strainer wall element (2) which has an inlet side (12) and a... | 05/01/2007 |
| 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 |
| 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 |
| 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 |
| 7175030 | High capacity depth filter bag A filter element for hydrocarbon emissions in, e.g., marine diesel engine applications, comprises a wound mat received within a filter bag. An annular end cap is bonded to one end of the wound mat, and is sealed around its periphery to a bag ring at the open end of ... | 02/13/2007 |
| 7150863 | Polynuclear aromatic hydrocarbons for fullerene synthesis in flames This invention provides improved methods for combustion synthesis of carbon nanomaterials, including fullerenes, employing multiple-ring aromatic hydrocarbon fuels selected for high carbon conversion to extractable fullerenes. The multiple-ring aromatic hydrocarbon ... | 12/19/2006 |
| 7118607 | Filter stop for a vacuum cleaner A filter stop for a vacuum cleaner contains a dust chamber that is closable with a lid and receives a dust bag with a reinforcement plate in a specific fitting position. The filter stop has a base plate that is movable between two stopping positions parallel to the ... | 10/10/2006 |
| 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 |
| 7076832 | Vacuum cleaner with pivotal fixture for dust bag reinforcing plate in a dust bag compartment A vacuum cleaner includes a dust collection compartment inside of which a dust bag with a reinforcing plate, which has a clip connected to the underside thereof, can be placed. The clip tapers toward the bottom in the shape of a funnel or trapezoid and is suited for... | 07/18/2006 |
| 7070642 | Air cleaner; replaceable filter cartridges; and, methods The disclosure concern air cleaners. Preferred air cleaners are shown which include a housing and a removable and replacement primary filter cartridge. Optional and advantageous features are shown. An optional mechanical interlock, operated with a non-threaded, move... | 07/04/2006 |
| 7063730 | Filter with end cap base retainer A filter includes a filter element mounted to a base and having first and second end caps spaced axially along an axis. Fluid to be filtered flows laterally through the filter element and axially through a hollow interior and through an axial flow opening of the sec... | 06/20/2006 |
| 7044991 | Dust-collecting structure of a dust-collecting device A dust-collection structure of a dust-collection device includes a body, a dust-collection module, a moving seat and a dust-filtering module. The cart body is provided with a blower having a driving member and the top face of the blower is provided with a connection... | 05/16/2006 |
| 6994739 | Filter mounting device for vacuum cleaner A structure for a vacuum cleaner for confirming whether a filter is mounted into a vacuum cleaner includes an interlock mechanism. The vacuum cleaner includes a cover including a discharging port for discharging air, and configured to cover the first end of a receiv... | 02/07/2006 |
| 6974491 | Cartridge locking device and method A cartridge locking device (10) for holding a filter media (14) in a plenum (12) in which an actuator (112) movable between a first position and a second position connects to a lever member (122) inwardly of the plenum (12) ... | 12/13/2005 |
| RE38842 | Vacuum cleaner bag docking assembly For use with vacuum cleaner bags of the type having a substantially rigid collar surrounding the bag opening, and with vacuum cleaners of the type having a dirty air outlet nozzle, a vacuum bag docking assembly is shown and described. The assembly incorporates an an... | 10/25/2005 |
| 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 |
| 6942895 | Method for sealing the cut edges of web-shaped filter material A method for sealing the cut edges which result when filter material is cut from a zigzag-shaped starting material is provided. The filter material area situated within an outer casing is at least partly interspersed with fine particles which are present therein in ... | 09/13/2005 |
| 6939463 | Spa and pool filter A filter for a spa or pool, having a filter body which receives a filter bag having a sheath encompassing the exterior of the filter body and a pocket extending inwardly from the front end of the sheath into the filter. Operation of the spa water circulation system ... | 09/06/2005 |
| 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 |
