Abstract:
A manifold assembly for a filter cartridge, the manifold assembly being fluidly coupable at an inlet (22) to a source of water to be filtered and having a filtered water outlet (24), and havingmanifold mounting means (70). The manifold assembly inlet includes a sealing means (34) isolating an inlet flow of unfiltered water to the filter cartridge and having second sealing means (32) isolating an outlet flow of filtered water from the filter cartridge.
Abstract:
The end cap or header for a water filter apparatus using replaceable tubular filter elements includes a central sealing sleeve that extends downwardly from the underside of the header within the threaded boss providing connection to the filter housing, the sealing sleeve adapted to provide sealing engagement with either of two common types of filter elements, one utilizing an annular end seal and the other utilizing an O-ring seal on the filter element delivery tube.
Abstract:
The invention is generally directed to an improved oil filter with integrated oil cooler (16) as well as a replaceable filter elements (12) for use with same. The filter (12) with integrated cooler (16) generally includes a housing defining a chamber (84) for receiving oil, a unitary cooling element (16) located within the housing, an oil inlet (66) for receiving unfiltered oil from an engine and passing it into the chamber (84), an oil outlet (64) for passing filtered oil back to an engine, a filter element (12) located within the chamber (84) for filtering the oil, a coolant inlet (20) for receiving low temperature coolant from a cooling system and passing said coolant to the cooling element (16); and a coolant outlet (22) for passing warmed coolant from the cooling element to a cooling system.
Abstract:
A drain assembly for a fluid filter (12) includes a female valve portion (26) unitary with an end wall (22) of a collection bowl (14), and having a socket (30) with a cylindrical sidewall and an inner end wall. The end wall (22) includes a plug (38), and a vent opening (40) radially outward from the plug (38). A drain opening (44) is provided in the end wall (22) radially outward from the socket (30). An annular sealing surface (48) is provided radially outward from the drain opening (44). A threaded sleeve (50) is provided radially outward from the annular sealing surface (48). A male valve portion (28) is received in the female valve portion (26), and includes a valve body (60) and a valve seal (62). The valve seal (62) is received in the socket (30) and includes a cylindrical sidewall (66) defining a vent passage (67), and an inner end (68) with a vent opening (72) to the vent passage (67). An annular sealing surface (78) is provided radially outward from the sidewall (66) of the valve seal (62). The sealing surface (78) on the valve body (60) is sealable against the sealing surface (48) on the bowl end wall (22), and has an outer diameter sufficient to cover the drain opening (44). The valve body (60) has a drain passage (79) radially outward from the valve seal (62). The valve body (60) includes a threaded sleeve (85) radially outward from the annular drain passage (79) in the valve body. The threaded sleeve (85) of the valve body (60) cooperates with the threaded sleeve (50) of the female valve portion (26) to enable the male valve portion (28) to be screwed into and outwardly from the female valve portion (26).
Abstract:
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 requied in order for the filter cartridge to be installed in the holder, so that mis-matched cartridges cannot be installed into the holder, for example, to prevent a particular type of cartridge from being placed in a filtration or other process where it would be inappropriate, or undesired. The keyed surfaces are selectively locate-able preferably at different circumferential locations on a perimeter of the filter and a corresponding location on a perimeter of the head/holder. The perimeter may be, for example, on an outer shoulder surface of a filter and an inner surface of a valve head, or on outer and inner surfaces of connectors that provide a liquid seal between the filter and the head/holder.
Abstract:
A filter assembly for filtering water from an external source, the filter assembly including a manifold assembly (12) mountable to an appliance and being in fluid communication with the external source and a cartridge assembly, the cartridge assembly being replaceably fluidly couplable to the manifold assembly, the filter assembly includes a first and a second fluid tube (52), the first fluid tube being fluidly couplable to the external source being an unfiltered fluid inlet, the second fluid tube being a filtered fluid outlet, the first and the second tubes each having a barbed end (54) for coupling to the manifold assembly. A tube retainer assembly (74) is associated with each of the first and second tubes, the tuber retainer bore defined therein for receiving a tube barbed end therein, a retainer ring disposable on the tube, the retainer ring compressively engaging a barbed surface of the tube barbed end and being fixedly bondable to port for forming a fluid tight seal between the fluid tube and the retainer assembly. A cartridge assembly and method of disengaging the cartridge assembly from a manifold assembly are also included.
Abstract:
A fuel filter comprises a filter head (302) having an inlet (306) and an outlet (308). A filter element (304) is connectable to a nipple portion (432) in the filter head. An actuating projection (484) supported by the element is engageable with a valve element (436) in the nipple portion to open flow through the nipple portion when the filter element is attached to the filter head. The filter head includes an annular threaded peripheral flange (394), and the element includes a corresponding annular threaded peripheral flange (452) which together cooperate to secure the element to the head. A manual priming pump (310) in the filter head includes a pair of check valves (372, 386) to control the flow of fluid through the head when priming the filter. A heater assembly (400) includes a heater pan (408) which encloses heater elements (406) and also includes the nipple portion (432), formed unitary therewith.
Abstract:
A filter assembly (20) is described that includes a substantially recyclable filter cartridge (30) inside a pressure vessel (22). The invented filter cartridge comprises substantially non-pressure bearing walls, except for a pressure-bearing neck (44) that is adapted to withstand high pressures preferably in the range of about 500 psi (34, 47. 10 Pa) from the inside. The walls of the filter cartridge that are incapable of withstanding significant internal pressure are surronded on the outside by a pressure vessel (22). The invented cartridge need not seal ot the pressure vessel, because the cartridge neck (44) protrudes outside of the pressure vessel (22) to seal directly to a filter head. The cartridge preferably includes a quick-disassembly mechanism for allowing quick and non-destructive access to the internal components and media of the cartridge.
Abstract:
Filter assembly (100) for filtering pressurized fluid removed from a fluid system having undesirable levels of contamination, such as a dry cleaning system. The filter assembly (100) has an upstream connection (110) in fluid communication with the fluid system to remove contaminated pressurized fluid therefrom. A plurality of filter lines (120, 130, 140) are in fluid communication with the upstream connection (110). The plurality of filter lines are connected in parallel with each other for concurrent flow of the pressurized fluid therethrough. Each filter line has a strainer (122) and at least one insoluble contaminant filter connected in series (124). Additional filter elements may be provided. The filters have housings with cross-dimensions substantially similar to those of the filter lines and the other piping used throughout the fluid system. A downstream connection (150) is provided in fluid communication between the filter lines and the fluid system such that pressurized fluid removed from the fluid system flows from the upstream connection (110) and in parallel through the filter lines (120, 130, 140) before returning to the fluid system through the downstream connection (150).
Abstract:
An additive dispensing apparatus for a fluid system is disclosed which includes a head having a body portion (11) adapted and configured for fluid communication with the fluid system and having a flow path extending therethrough. A fluid inlet portion (14) of the flow path defines a relatively high pressure region and a fluid outlet portion (16) of the flow path defines a relatively low pressure region. A canister is operatively associated with the body portion and structure is provided for facilitating fluid communication between the fluid inlet portion and the interior of the canister. A collapsible container (22) is disposed within the canister for containing a liquid additive for dispensment into the fluid system and structure is provided for facilitating fluid communication between the collapsible container and the fluid outlet portion, whereby the differential pressure between the interior of the canister and the interior of the collapsible container effectuates a proportional dispensment of liquid additive into the fluid system.