Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7442222 | Filter housing composed of first and second releasably connected sections A housing, particularly a filter housing, especially an air filter housing, including first and second housing sections which can be releasably connected by a relative rotational movement between the sections. Latching members corresponding to one another are dispos... | 10/28/2008 |
| 7442220 | Assembly for collecting material entrained in a gas stream An assembly for collecting material entrained in a gas stream comprising a housing having a head part and a body part, and inlet and outlet ports. A chamber port is provided in the head part having internal walls defining a primary chamber with a first end communica... | 10/28/2008 |
| 7410519 | Sandwich filter block A sandwich filter device including a block body and an insert held in the block body. The insert and the block body each have a passage for gas flow through. Positioned across the insert passage is a filter for removing contaminants from a gas stream. ... | 08/12/2008 |
| 7354470 | Multiple retainer bridge A multiple retainer bridge device is provided for securing a utility member (e.g., a magnet or bracket) to posts on a housing member (e.g., a filter housing). When assembled, the utility member is staked onto the posts. A single retainer member prevents the utility ... | 04/08/2008 |
| 7351270 | Air cleaner arrangements; serviceable filter elements; and, methods An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securin... | 04/01/2008 |
| 7344582 | Filter assembly This invention relates to a filter assembly for removing material that is entrained in a gas stream. The filter assembly comprises a housing which comprises head and body parts, with an inlet port in the head part for a gas stream to flow into the housing, the head ... | 03/18/2008 |
| 7323029 | Air cleaner arrangements; serviceable filter elements; and, methods An air cleaner arrangement or assembly is provided. The air cleaner arrangement includes a serviceable filter cartridge. The air cleaner assembly also includes an arrangement for positioning the filter cartridge into a preferred, sealing, orientation and for securin... | 01/29/2008 |
| 7303604 | Filter arrangement; sealing system; and methods A filter pack includes a filter construction and a sealing system for sealing the construction within a duct or housing. The filter construction has first and second opposite flow faces and is configured for a straight-through flow. The sealing system includes a fra... | 12/04/2007 |
| 7291198 | Filter system; element configuration; and methods A filter element is includes a cylindrical media pack defining a central open volume and a longitudinal axis; a first end cap having a central aperture in flow communication with the central open volume; and a second, closed end cap having a central region closing a... | 11/06/2007 |
| 7285148 | Spring-loaded air cleaner cover A filter assembly for an engine and operable to support a filter element. The filter assembly includes a housing defining a filter receiving space having a first end and a second end. The first end and second end defining an axial length therebetween. A biasing elem... | 10/23/2007 |
| 7217308 | Closing device for housing This invention relates to a closing device for a housing of an air filter that can be closed with a housing cover. The assembly process is to be simplified and accelerated, while the number of parts required is to be reduced at the same time. According to the invent... | 05/15/2007 |
| 7147685 | Filter cover assembly for an air conditioning unit A filter cover assembly for an air conditioning unit is disclosed. The filter cover assembly allows a user to easily install a filter in a casing of an air conditioning unit through an opening provided on the casing and to easily remove and mount the filter cover as... | 12/12/2006 |
| 7122066 | Air filter system An air filter system for use by airline passengers on commercial airlines and the like. The housing is configured to clamp to the gasper air supply nozzle of the airliner. The housing is configured to direct air from the air supply nozzle through the filter medium. ... | 10/17/2006 |
| 7090710 | Air intake duct for vehicle An air intake duct for a vehicle having a cuttable groove at an external wall of an air exhaust port can be applied to any vehicle regardless of whether an air filter is adopted, thus providing cost-effectiveness, preventing air leakage when the air filter is not us... | 08/15/2006 |
| 7090711 | Multistage air cleaner including pulse cleaning system A V-pack filter includes a frame construction having a first frame structure and a second frame structure. The V-pack filter also includes first and second panel sections mounted in extension between the first and second frame structures. The first panel section has... | 08/15/2006 |
| 7083829 | Vehicle having atmosphere pollutant treating surface A method and apparatus for treating the atmosphere comprising moving a vehicle through the atmosphere, the vehicle having at least one atmosphere contacting surface and a pollutant treating composition located on said surface. A specific embodiment comprises coating... | 08/01/2006 |
| 7077921 | Method to make an expandable air filtration apparatus and device A method of manufacture includes the steps of laminating together a pleated filter media with an expanded wire forming a laminate; pleating the laminate forming a filter pack with a two pleated edges; forming an inner frame with inner front and back panels, an inner... | 07/18/2006 |
| 6986805 | Filter system; element configuration; and methods A filter element is includes a cylindrical media pack defining a central open volume and a longitudinal axis; a first end cap having a central aperture in flow communication with the central open volume; and a second, closed end cap having a central region closing a... | 01/17/2006 |
| 6977006 | Keyed system for connection of filter cartridge to filter holder Embodiments of a key system for filters and their connecting heads/holders are shown. The filter cartridge and its holder each have a keyed surface, one being a protruding “key” and one being a recessed “lock”. Cooperation of these keyed surfaces is required... | 12/20/2005 |
| 6966938 | Oil separator for pumps overflowing with oil An oil separator for oil-flooded rotary vane vacuum pumps has a filter housing (10) and a plurality of filter cartridges (14) disposed therein through which the pumping medium flows. The filter cartridges (14) are each inserted through a respect... | 11/22/2005 |
| 6958083 | Air cleaner with reduced restriction precleaner An air cleaner is provided with a reduced restriction precleaner cooperating with a tangential inlet and centering and locating an annular filter element, and reducing inlet restriction. ... | 10/25/2005 |
| 6939385 | Filter device for filtering fluids A filtering device for filtering fluids includes a filter housing, a filter element and an attaching device for attaching the filter element to the housing. The filter element is attachable to the filter housing using a bayonet lock. ... | 09/06/2005 |
| 6878176 | Air conditioning filter A vehicle includes an operator's cab having an air inlet and an air filtration system, and an air outlet, wherein the air filtration system comprises a filter element, and a filter container for receiving the filter element, the operator's cab comprising a chamber f... | 04/12/2005 |
| 6837920 | Filter system; element configuration; and methods A filter element is includes a cylindrical media pack defining a central open volume and a longitudinal axis; a first end cap having a central aperture in flow communication with the central open volume; and a second, closed end cap having a central region closing a... | 01/04/2005 |
| 6740149 | Air cleaner To enlarge an opening area in an element retainer supporting a clean side of an element, to reduce resistance to air passage and thereby to enlarge intake air quantity. The interior of an air cleaner is surrounded by a case and a lid is partitioned by an element int... | 05/25/2004 |
| 6716264 | Air cleaner An air cleaner, particularly for an engine of a vehicle, includes a case, a cover detachably mounted to the case, a filter element accommodated in the case, the filter element having a cylindrical shape having a central axis therealong, and a pair of support members... | 04/06/2004 |
| 6716267 | Multi-position, spring loaded filter rack A filter rack is spring loaded to an expanded position to help hold the filter rack at various positions and orientations within a furnace enclosure. The rack may also include a spring-loaded channel whose position adjusts to receive filters of various widths. One s... | 04/06/2004 |
| 6716265 | Air treatment apparatus with an interchangeable vent cover An air treatment apparatus has a housing and a vent cover. The housing has a treatment element, at least one entrance and a fan secured in the hollow housing and facing the entrance. The vent cover is detachably and replaceably attached to the housing. At least one ... | 04/06/2004 |
| 6709495 | Filter assembly The invention provides a filter assembly for use in a vacuum cleaner having a first filter portion that includes a foam filter, and a second filter portion located downstream of the first filter portion and containing a HEPA grade filter medium, the first and second... | 03/23/2004 |
| 6695891 | Keyed system for connection of filter cartridge to filter holder Embodiments of a key system for filters and their connecting heads/holders are shown. The filter cartridge and its holder each have a keyed surface, one being a protruding "key" and one being a recessed "lock". Cooperation of these keyed surfaces is requi... | 02/24/2004 |
| 6652614 | Filter system; element configuration; and methods A filter element is includes a cylindrical media pack defining a central open volume and a longitudinal axis; a first end cap having a central aperture in flow communication with the central open volume; and a second, closed end cap having a central regio... | 11/25/2003 |
| 6620223 | Pleated air filter assembly An air filter assembly which filters and purifies air prior to entering an external combustion engine includes a conical radially pleated filter element disposed over a filter carrier. When assembled, the pleats of the filter element are trapped between a... | 09/16/2003 |
| 6610116 | Air filter system An air filter system for use by airline passengers on commercial airlines and the like. The housing is configured to clamp to the gasper air supply nozzle of the airliner. The housing is configured to direct air from the air supply nozzle through the filt... | 08/26/2003 |
| 6485538 | Air-conditioning air filter The present invention provides an air-conditioning air filter capable of cleaning and replacing only a filter element thereof for resources saving, refuse reduction, and cost reduction, and also preventing air leakage due to expanded deformation of a main... | 11/26/2002 |
| 6475255 | Serviceable air filter/oil separator assembly An air filter/oil separator assembly comprises a housing having an outer wall and a channel disposed therein between a primary gas inlet and a primary gas outlet. An air filter is joined to the primary gas inlet for filtering air from the immediate enviro... | 11/05/2002 |
| 6461397 | Filter assembly A filter assembly for collecting material that is entrained in a gas stream includes a housing for a tubular elements arranged for the gas stream to flow through its wall, the housing having inlet and outlet ports for the gas that is to be filtered. The a... | 10/08/2002 |
| 6436162 | Twist and lock filter housing with anti-rotation stop An air filter housing (12) includes twist and lock structure (46) having a first position (FIGS. 5, 6) permitting axial movement (120) of a cover (44) and base (38) relative to each other, and being rotatable in a first direction (48) from the first posit... | 08/20/2002 |
| 6419718 | Cover member and air cleaner construction; use; and, method of assembly An air cleaner assembly is provided. The air cleaner assembly includes preferred one-piece cover/filter element construction. A method for manufacturing a preferred cover assembly with a filter element construction nondetachably secured thereto, is provid... | 07/16/2002 |
| 6402798 | Twist and lock filter housing with nontorsional anti-rotation stop An air filter housing (12) includes twist and lock structure (42) having a first position (FIGS. 5, 7, 10) permitting axial movement (66) of a cover (34) and base (36) relative to each other, and being rotatable in a first rotational direction (44) from t... | 06/11/2002 |
| 6383268 | Air cleaner An air cleaner wherein an element for filtering intake air and an absorber member for absorbing fuel vapor are disposed within a housing. Within the housing, a stopper portion for tentatively attaching the absorber member and a seat portion capable of rec... | 05/07/2002 |
