Famous Patents
In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7434697 | Disposable, spin-on filter A disposable, spin-on fluid filter is constructed and arranged to mount onto a base that is configured with a threaded mounting shaft. The base provides a fluid inlet flow to the filter and a fluid exit path from the filter. The filter construction includes a housin... | 10/14/2008 |
| 7419060 | Integrated fuel container and impurity removal cartridge A fuel supply for a fuel cell including a fuel container and an impurity removal cartridge connected to the fuel container, where both the fuel container and the impurity removal cartridge are integrated into a single unit. ... | 09/02/2008 |
| 7389883 | Filter cartridge A filter cartridge which comprises a filter pack (3) formed by a flat filtering medium, a tubular sheath (2) with a perforated wall, surrounding the filtering pack, and two respective end caps (5) having a first disc (16) and a second dis... | 06/24/2008 |
| 7357866 | Filter module, installation kit for a filter module and a filter device The invention concerns a module for filtering media. More particularly, the invention concerns a module for filtering fluids and including one or more filter cells stacked on top of one another. The invention also relates to an installation set for the installation ... | 04/15/2008 |
| 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 |
| 7311208 | Environmentally friendly filter cartridge A filter cartridge which is environmentally friendly in that it is made up of components which are all incinerateable. The ends of a filter element are sealed using potting compound and plastic endcaps. The upper endcap, which is closed, has a pressure relief apertu... | 12/25/2007 |
| 7249613 | Energy attenuation device An energy attenuation device for a conduit that is adapted to convey a pressurized fluid therethrough, comprising a hose section disposed about a portion of the conduit, wherein such conduit portion is provided with at least one aperture, for example in a surface th... | 07/31/2007 |
| 7182864 | Housing for environmentally friendly filter cartridge A filter system in which a housing and an environmentally friendly filter cartridge are coordinated to provide ease of change of the filter cartridge and reliable operation. The cartridge contains no metal parts and is readily incinerateable. The housing is provided... | 02/27/2007 |
| 7168573 | Environmentally friendly filter cartridge A filter cartridge which is environmentally friendly in that it is made up of components which are all incinerateable. The ends of a filter element are sealed using potting compound and plastic endcaps. The upper endcap, which is closed, has a pressure relief apertu... | 01/30/2007 |
| 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 |
| 7036530 | Energy attenuation device for a fluid-conveying line and method of attenuating energy in such a line An energy attenuation device for a fluid-conveying line, and a method for attenuating energy in such a line, are provided. The device includes one or more hose sections disposed in the fluid-conveying line, and at least one spring disposed in at least a portion of e... | 05/02/2006 |
| 6988625 | Fluid filter with low-cost housing A fuel-water separation filtration system for filtering fuel and for separating water out of the fuel includes a housing assembly, a filter element assembly, and a closing lid. The housing assembly includes a unitary molded housing, a plurality of flow connection fi... | 01/24/2006 |
| RE38917 | Fluid filter with filter bypass valve and sealing surface on filter element side In a fluid filter with a housing and a filter element replaceably located in said housing, and with a filter by pads valve having a valve body held in the housing that is movable against the action of a spring from the closed position in which it cooperates with a s... | 12/13/2005 |
| 6962660 | Fluid filter system with secondary flow path for augmented filtration A filter system for spas and swimming pools is disclosed having a primary filter containing a porous membrane made of multiple plies. A fluid purifying medium in the form of irregularly shaped copper and zinc alloy particles is captured between the plies and placed ... | 11/08/2005 |
| 6926825 | Fluid filter with removable central component with additional retainer The invention relates to a fluid filter, especially an oil filter for an internal combustion engine, comprising a filter housing and a central, approximately tubular component which extends into the interior of the filter, said central component engaging in the oper... | 08/09/2005 |
| 6921479 | Fluid filter with removable central component with additional retainer The invention relates to a fluid filter, especially an oil filter for an internal combustion engine, comprising a filter housing and a central, approximately tubular component which extends into the interior of the filter, said central component engaging in the oper... | 07/26/2005 |
| 6471877 | Filter device for polycarbonate and production method for polycarbonate Provided are a filtration apparatus for a polycarbonate comprising a filtration container, a flange plate, one or more leaf disc-type filters, a filter press and a center pole having an integral construction with the filter press as constituting elements,... | 10/29/2002 |
| 6129841 | Portable water treatment assembly A portable water treatment assembly and water treatment method are disclosed in which the water to be purified is placed in an upper container together with a suitable bactericide, and is held in that container until the bactericidal action is complete. A... | 10/10/2000 |
| 6116429 | Filter housing extension kit An extension kit for adaptation to an existing filter housing provides a two-fold increase in filtering surface area, while inducing a vibration into a resultant filter housing structure which resultantly loosens entrapped impurities to extend the life an... | 09/12/2000 |
| 6085915 | Back-washable spin-on oil filter A fluid filter assembly (20) includes an axially extending tubular housing shell (24) having an integral closed end (26), a distally opposite integral open end (28), and a sidewall (30) extending integrally between the ends. An annular filter cartridge (3... | 07/11/2000 |
| 6048454 | Oil filter pack and assembly An oil exchange apparatus (16, 96, 126) and its assembly with an arrangement (17) of fluid flow lines (112), (108), for lubricating a system, such as an engine (15, 145), while providing for a quick exchange of the apparatus (16, 96, 126) with another one... | 04/11/2000 |
| 6024867 | Counter top water filter with replaceable electronic display monitor A counter top water filter unit intended for domestic use to be placed adjacent to a sink and having an inlet at its lower end which is coupled to the sink faucet. The filter unit includes a cylindrical-shaped carbon particle filter cartridge which has a ... | 02/15/2000 |
| 6015488 | Filter system for septic tank A filter housing having a bracket for attaching the housing to a septic tank outlet port and adapted for fluid flow connection to an outlet port on the housing, contains a removable filter element having an outlet port connected to the outlet port on the ... | 01/18/2000 |
| 6006924 | Multi-media filtration system with reusable and demountable filter cartridge A spin-on filter unit for filtering liquids which may be readily disassembled and which utilizes a perforated center tube support disposed within a housing canister having both an open end and a closed end, a mounting head assembly which includes a bayone... | 12/28/1999 |
| 5928511 | Oil filter with housing drain channel An oil filter including a filter housing, a cover and a filter element arranged within the filter housing and provided with an outlet channel which is closed by a seal when the cover is in a closed position and which allows oil situated in the filter hous... | 07/27/1999 |
| 5919362 | Expandable encapsulated filter cartridge assembly An encapsulated filter cartridge assembly is disclosed which is adapted and configured for reception within an elongated cartridge housing of a filtration system. The filter cartridge assembly includes an elongated filtration element, a connector head pos... | 07/06/1999 |
| 5916440 | Rigid membrane fluid treatment module A fluid treatment module, particularly for treating ultra-pure fluids by separation or catalytic treatment having at least one treatment membrane in a porous sintered material comprises a rigid tube casing, a rigid compression plate at one or each end the... | 06/29/1999 |
| 5888384 | Liquid filter A fluid filter having a substantially pot-shaped housing 10 in which is disposed a filter insert 11 including a pleated filter element 18 and end plates 19 and 20. The housing has a mounting flange 12 and a cover 13. The cover is connected to the mounting... | 03/30/1999 |
| 5871640 | Filter and housing A septic tank filter system comprises a mounting member adapted for attachment to an interior surface of a septic system tank, at least one open-ended, cylindrical filter housing fixed to the mounting member, and a hollow foraminated filter nested in each... | 02/16/1999 |
| 5865209 | Air gap adapter An air gap adapter for use with a water faucet. The air gap adapter has an adapter body with a base portion and an integral riser portion which extends generally vertically upwardly from a rear region of the base portion. The base portion has a hole for a... | 02/02/1999 |
| 5863443 | In-line agricultural water filter with diverter tube and flush valve A filter device used to remove organic and inorganic debris from a liquid stream, such as irrigation water. The device comprises a diverter tube having a plurality of apertures therein to divert a significant portion of the liquids entering the device ont... | 01/26/1999 |
| 5858225 | Dental filter with sanitary handling A filter canister assembly for receiving waste from a dental cuspidor includes a canister of generally conventional configuration, with an open upper end fitted with a canister closure, the canister containing a closed disposable filter basket. A hand gri... | 01/12/1999 |
| 5846416 | Fluid filter having a reusable filter housing and a replaceable coreless filter element A reusable fluid filter assembly comprises a cylindrical housing, a top plate assembly, a top plate attachment member, and a replaceable coreless filter element. The housing has means for removably connecting the housing to the top plate, and a hollow cen... | 12/08/1998 |
| 5820753 | Disposable dental evacuation trap Undesired contact with dental debris is minimized by a disposable dental trap which is provided with a removable top cover and a pivotable handle. The useful capacity of the trap is increased with a corrugated filter which increases the available filter s... | 10/13/1998 |
| 5772881 | Non-metallic spin-on filter A plastic oil filter comprises a cup-shaped shell with an open end. The shell contains an annular filter media with an elongated opening therethrough. A backplate is positioned in the open end of the shell. An elongated core is positioned in the opening i... | 06/30/1998 |
| 5770054 | Fluid filter with filter bypass valve and sealing surface on filter element side In a fluid filter with a housing and a filter element replaceably located in said housing, and with a filter by pads valve having a valve body held in the housing that is movable against the action of a spring from the closed position in which it cooperat... | 06/23/1998 |
| 5766468 | Dual media primary/secondary fuel filter A dual media fuel filter which combines the functions of filtering the fuel passing from a fuel source to a lift pump, and the function of filtering the fuel passing from the lift pump to the fuel injectors. The present invention provides a fuel pump with... | 06/16/1998 |
| 5738785 | Oil filter housing A housing system for a removable filter cartridge in an automotive lubrication system. The housing is formed of a thin-walled sheet metal drawn cylinder, with end removed, to form an elongated cylinder with both ends open. A base end has a formed metallic... | 04/14/1998 |
| 5702602 | Filter system with environmentally friendly filter cartridge A filter system using a filter cartridge adapted for disposal in an environmentally acceptable manner. The filter cartridge has no metal parts, and thus avoids the use of a metal center tube, or a center tube of any configuration. The housing itself carri... | 12/30/1997 |
| 5695633 | Oil filter support tube and housing cover with snap detent connection therebetween A fluid filter, particularly for cleaning lubricating oil for internal-combustion engines of motor vehicles, which includes a filter housing 10 with a screw cap 11 and an annular filter element 12 inserted into the filter housing 10. The filter element 12... | 12/09/1997 |
