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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 8119001 | Exchangeable oil filter with spring-operated pin for drainage The invention relates to a device for filtering of oil circulating in an internal combustion engine, comprising an oil filter adapter for detachable fastening of an exchangeable oil filter to the engine block of the internal combustion engine. The invention is chara... | 02/21/2012 |
| 8097156 | Fluid filtration system The present disclosure relates to a new fluid filter system including, but not limited to, structure for enabling a filter cartridge to be installed and removed from a manifold with a straight line push/pull motion, an innovative latching mechanism and an innovative... | 01/17/2012 |
| 8097157 | Fluid filtration system A fluid filtration system is disclosed comprising a manifold assembly comprising a mounting bracket, an alignment collar connected to the mounting bracket, and a latch assembly moveable with respect to the mounting bracket and alignment collar. The system further co... | 01/17/2012 |
| 7955502 | Liquid filter arrangement and methods A liquid filter arrangement is provided, as well as methods of assembly and use. The liquid filter arrangement includes an anti-drain back valve assembly therein. Advantageous features, relating to a preferred filter cartridge and preferred anti-drain back valve arr... | 06/07/2011 |
| RE42059 | Oval centerpost and cooperating filter cartridge A fluid filter centerpost assembly in combination with a fluid filter cartridge for creating a “no filter-no run” design according to one embodiment of the present invention comprises an oval-shaped design for the centerpost assembly and an oval-shaped design fo... | 01/25/2011 |
| 7862717 | Oil filter arrangement An oil filter arrangement comprises a housing, which has a receiving chamber for a filter element which can be cross-flowed in a radial manner by oil and which can be inserted into the housing, a support tube which supports the filter element when it is inserted, a ... | 01/04/2011 |
| 7837876 | Water purifying apparatuses A filter cartridge including a housing having a water inlet and outlet, a valve disposed in the housing and defining transversally aligned inlet and outlet passageways, and having a first key formation that vertically depends from the valve, a cartridge having trans... | 11/23/2010 |
| 7682508 | Base for internal combustion engine filter cartridge Base for an internal combustion engine filter cartridge, intended to receive s a filter cartridge (3) provided with apertures for the entry of the oil to be filtered and for the exit of the filtered oil, in a respective upwardly facing matching engagement sea... | 03/23/2010 |
| 7662284 | Liquid filter arrangement and methods A liquid filter arrangement is provided, as well as methods of assembly and use. The liquid filter arrangement includes an anti-drain back valve assembly therein. Advantageous features, relating to a preferred filter cartridge and preferred anti-drain back valve arr... | 02/16/2010 |
| 7608184 | Liquid filter A liquid filter, in particular for the lubricating oil of an internal combustion engine, having a housing with an inlet and an outlet formed from a housing pot having a substantially downwardly open filter element installation opening and a screw-on cover that close... | 10/27/2009 |
| 7531090 | Fluid filter element A filter element is removably positionable within a filter housing that includes a standpipe extending therewithin and provided with a flow control valve. The filter element comprises a tubular filter media, a first end cap, a second end cap longitudinally spaced fr... | 05/12/2009 |
| 7517452 | Filter assembly A floor waste (10) including a filter basket (16) having a magnet (18). The magnet (18) attracts a movable valve member (27) upwardly from a seat (22) to allow liquid to pass through the seat (22). When the basket ( | 04/14/2009 |
| 7481928 | Hot disconnect replaceable water filter assembly A filter assembly for filtering water from an external source, the filter assembly having a manifold assembly and a filter cartridge. The filter cartridge includes a cartridge engagement means while the manifold includes a manifold engagement means. The cartridge en... | 01/27/2009 |
| 7459078 | Filter device A filter device includes at least one filtering element arrangeable in a filter housing (11) connectable to a hydraulic device (9), in particular a hydraulic tank. The tank is connectable to the filter housing through hydraulic connections (37, 39 | 12/02/2008 |
| 7442301 | Filter housing apparatus with rotating filter replacement mechanism A filter assembly for fluid filtration having a push-activated lock and release mechanism. The filter housing has a sump for enclosing the filter media, a filter head, and at least one standoff protruding outwards for use in securing the filter head to a filter mani... | 10/28/2008 |
| 7435347 | Filter device and parts thereof and a method for operating of the filter device A filter device has a filter housing part (10) with a filter element (12) and can be detachably connected to another filter housing part (20). A valve (24) clears a fluid path in the interconnected state of the housing parts (10, 20 | 10/14/2008 |
| 7407148 | Rotary valve assembly for fluid filtration system A valve assembly is disclosed for use in conjunction with a replaceable filter cartridge system. The valve assembly includes a head member having an interior valve chamber defining a central axis, and inlet and outlet passages extending parallel to and communicating... | 08/05/2008 |
| 7390407 | Liquid filter A liquid filter, in particular for the lubricating oil of an internal combustion engine, having a housing with an inlet and an outlet formed from a housing pot having a substantially downwardly open filter element installation opening and a screw-on cover that close... | 06/24/2008 |
| 7387725 | One-touch fitting type single or multiple adapter, filter assembly detachably engaged with the same and water purifying system employing these elements A one-touch fitting type adapter and a filter assembly are provided in which the filter assembly used for machinery, such as a bidet or a refrigerator, is easily assembled with or disassembled from the adapter through a one-touch fitting manner such that the filter ... | 06/17/2008 |
| 7378017 | Disposable fluid separation device and manifold assembly design with easy change-out feature Fluid separation assembly that allows easy and fast change-out even in confined spaces, and also minimizes or eliminates leakage during change-out. A fluid separation unit having a housing containing separation means, the housing having an inlet and an outlet spaced... | 05/27/2008 |
| 7357867 | Filter element for keyed latch valve A filter element removably located in a housing having a central valve structure. The element has an end cap with a valve actuating portion. The valve actuating portion includes a cylindrical portion and an annular base projecting radially inward from the cylindrica... | 04/15/2008 |
| 7351332 | Chromatography cartridge and method for manufacturing a chromatography cartridge A chromatography cartridge and method of manufacturing same. A chromatography cartridge of the present invention can include a tubular housing having an open end and an inner surface, and a plug. The plug can be positioned within the open end of the tubular housing ... | 04/01/2008 |
| 7338594 | Faucet filter with sight glass A faucet mounted filter device includes a horizontally disposed cylindrical part for housing a replaceable filter cartridge and a horizontally disposed arm part extending radially from the cylindrical part which has a connector on its upper side for releasable conne... | 03/04/2008 |
| 7335300 | Fluid filter element A filter element is removably positionable within a filter housing defining a filter chamber for said filter element. The filter housing comprises a standpipe extending within the filter chamber. The filter element includes a tubular filter media circumscribing the ... | 02/26/2008 |
| 7326342 | Fuel filter cartridge and keyed end cap A filter cartridge has a keyed end cap which is configured and shaped for unlocking an associated valve mechanism that comprises a latch device and a valve. In this manner, when the fuel filter cartridge is placed into a fuel filter housing having such a latch and v... | 02/05/2008 |
| 7323103 | Multifunctional shutting device for lubrication filter A multifunctional shutting device for a lubrication filter includes a safety device with triple valve shutting. The safety device includes a first valve for closing the oil intake in the filter with a view to dismantle the filter, a second bypass valve that opens wh... | 01/29/2008 |
| 7303683 | Microorganism-removing filter medium having high isoelectric material and low melt index binder A filter medium capable of removing microorganisms from a fluid such as water. The filter medium includes particles of activated carbon, particles of a substantially insoluble inorganic material having an isoelectric point greater than the fluid being filtered. A lo... | 12/04/2007 |
| 7264718 | Fluid filter apparatus and method A fluid filter system has a manifold having a fluid inlet with an inlet stop and a fluid outlet with an outlet stop and a cartridge seat. A cartridge is separable from the manifold and adapted to mount and dismount in the manifold. The cartridge has a filter housing... | 09/04/2007 |
| 7261815 | Water filter for refrigerator water dispenser A water dispenser in a refrigerator door can include a filter casing in the door opening into the bottom of the dispenser housing. The filter casing can include a top wall positioned in the bottom of the dispenser housing, a head assembly at the bottom of the filter... | 08/28/2007 |
| 7238280 | User friendly dispensers A user friendly system that permits an unskilled person to quickly add dispersant material to a fluid system with the user friendly system utilizing operator evident dispersant carriers such as drawers, hangars or insertable cartridges. ... | 07/03/2007 |
| 7192131 | Filter element carrier, filter, ink pen In one embodiment, a filter element carrier comprises a first wedge shaped cavity, a second wedge shaped cavity isolated from and overlapping the first cavity, an outlet from a deep part of the first cavity, and an inlet to a deep part of the second cavity. In one e... | 03/20/2007 |
| 7186337 | Quick-change filter and bracket system A bracket system holds one or more filters in quick-attach and quick-release fashion. Bracket modules are combined in modular fashion, with tubing or other conduit between the modules, to create a “bank” of filters easily changed in number, arrangement, and flow... | 03/06/2007 |
| 7186338 | Twist and lock filter housing A filter housing having radial sealing means is disclosed herein. Upper bosses and lower bosses can be used to attach the head to the sump for easy opening and closing the filter housing when replacing the filter cartridge. The filter housing of the present inventio... | 03/06/2007 |
| 7182868 | Device for filtering fluid substances, used for a meat materials injecting machine An apparatus for filtering fluid substances is used with a machine for injecting meat products. The device comprises a container (4) comprising filter units (3a, 3b) communicated independently with a suction outlet (6) throu... | 02/27/2007 |
| 7166215 | Pressure vessel and recyclable filter cartridge A filter assembly is described that includes a substantially recyclable filter cartridge inside a pressure vessel. The invented filter cartridge comprises substantially non-pressure bearing walls, except for a pressure-bearing neck or cap with neck that is adapted t... | 01/23/2007 |
| 7166210 | Oil filter cartridge The present invention relates to small vehicles such as lawn and garden tractors and more specifically to an oil filter cartridge or assembly usable with the transmissions of such vehicles. The cartridge is comprised of a filtering element, a strainer element and a ... | 01/23/2007 |
| 7150828 | Fluid filter having drain structure and drain tool A drain structure for a fluid filter includes a cap internally forming a drain hole. The cap receives a valve member urged by an urging means in a direction, in which the valve member blocks the drain hole. Normally, the drain hole is blocked with a drain member. Wh... | 12/19/2006 |
| 7147773 | Refrigerator with treated water A refrigerator with a water treatment system including a head connecting a water supply to a water-using accessory. An end piece is provided for connecting a treatment cartridge to the head. The end piece comprises an inlet fitting having a cam that contacts a follo... | 12/12/2006 |
| 7141166 | Drain structure having drainpipe and fluid filter using the same An oil filter has a drain hole, which is internally blocked with a valve member. When oil remaining in the oil filter is drained, a drainpipe is inserted into the drain hole, so that the valve member is displaced and remaining oil is drained from the drain hole. Thi... | 11/28/2006 |
| 7138052 | Quick change fitter and bracket system with key system and universal key option A bracket system holds a filter(s) in quick-attach and quick-release fashion. Brackets are combined in modular fashion, with conduit between the brackets, to create a “bank” of filters easily changed in number, arrangement, and flow scheme. Top brackets and bott... | 11/21/2006 |
