Filtering Patents (Class 123/196A)
  • Patent number: 4752387
    Abstract: Adapter for connecting a by-pass oil filter to an internal combustion engine equipped with a full-flow, throw-away, replaceable oil filter. Adapter would form an adjustable clamp band around the annular surface of the full-flow filter and would embody an appropriate penetrating device consisting of a sharpened hollow needle or penetrating pin which would automatically penetrate the annular surface of the full-flow filter when the adapter band is securely tightened, opening up access to a small supply of engine oil to be transferred to the by-pass filter via appropriate connections.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: June 21, 1988
    Inventor: Albert E. Thomas
  • Patent number: 4747378
    Abstract: The lubricating oil filter of the invention comprises an outer casing which houses a filter element through which the oil passes, a pressure relief valve which prevents the oil passing through said filter element in the case of excessive pressure drop, and mutually facing metal plates separated by the filter element and arranged to form a capacitor, of which the filter element forms the dielectric, one of the plates being connected to the vehicle earth and the other being connected to an electrical conductor leading to the outside of the filter, the pressure relief valve being provided with means for connecting the electrical conductor to earth in the case of high pressure drop in the oil flow through the filter element, and with further means for connecting the electrical conductor to earth following repeated opening movements of the pressure relief valve, there being provided an instrument for measuring the capacitance of said capacitor and for indicating when the electrical conductor has been connected to
    Type: Grant
    Filed: May 6, 1986
    Date of Patent: May 31, 1988
    Assignee: Ital Idee s.r.l. an Italian Limited Liability Company
    Inventor: Cantoni, Angelo
  • Patent number: 4741305
    Abstract: In the case of the present invention, however, in order to solve the lube oil supply problem, it sets up a by-pass crown part (10) connected to the inner pipe on the upside(14) of inner pipe part and increases the amount of oil passing through the filtering element by connecting vertical oil pressure directly to tissue element(15) and delays the direct operation of inflowing oil by adopting the horizontal by-pass method.
    Type: Grant
    Filed: March 6, 1986
    Date of Patent: May 3, 1988
    Inventor: Shi W. Moon
  • Patent number: 4724806
    Abstract: A lubricant circulation system for an automotive vehicle in which a filter and container unit (23) is used. This unit can be unscrewed and be replaced with another one so that both lubricant and filter (24) can be quickly replaced.
    Type: Grant
    Filed: March 19, 1987
    Date of Patent: February 16, 1988
    Assignee: Atlas Copco Aktiebolag
    Inventor: Carl S. M. Hartwig
  • Patent number: 4724807
    Abstract: The filtering apparatus filters air-contaminant mixtures. An annular housing has an outer wall and a channel defining a central axis, the channel having a primary gas inlet and a primary gas outlet and a channel wall. The apparatus has a secondary inlet port passing through the outer wall. A secondary outlet port defines an opening in the channel wall such that there is no straight line flow path between the secondary inlet and the secondary outlet. A passageway between the secondary inlet and the secondary outlet is defined exteriorly by the outer wall and interiorly by the channel wall.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: February 16, 1988
    Inventor: Robert A. Walker
  • Patent number: 4700670
    Abstract: An adapter for use with internal combustion engine lubricating oil filter apparatus is provided for enabling a polishing filter of fine pore size to be placed in parallel flow arrangement with a full flow filter without jeopardizing the adequacy of filtered oil flow to the oil galleries of an engine.
    Type: Grant
    Filed: February 10, 1986
    Date of Patent: October 20, 1987
    Inventor: Harvey R. Schade
  • Patent number: 4689144
    Abstract: An automatic transmission fluid filter has a casing consisting of a main casing portion and a cap. Generally axial spigots, are provided on the casing portion and the cap for connection into a fluid line. Within the casing there is a disc-shaped magnet and a paper element cartridge the magnet being located adjacent the entry spigot such that all fluid flowing through the spigot passes within the effective range of the magnet.A bypass valve may be provided in the paper element cartridge to allow fluid at a pressure above a predetermined level to bypass the paper filter.
    Type: Grant
    Filed: March 26, 1985
    Date of Patent: August 25, 1987
    Assignee: Australian Pacific Marketing Pty. Ltd.
    Inventor: Kevin J. Holmes
  • Patent number: 4681189
    Abstract: A dry sump lubrication system for an internal combustion engine which includes a cam housing, a crankcase and an oil sump therein. The lubrication system includes an oil tank, a conduit connecting the oil tank to the engine and an oil pump for pumping oil from the sump. The pump may include a plurality of pumping stages. An air separator is directly connected to the pump to remove air from the oil. Oil is conducted from the air separator to the oil tank. Separated air is conducted from the air separator to a canister which is vented to the atmosphere. Oil particles will be condensed out of the air in the canister and will be conducted back to the engine through a conduit which is connected to the engine housing, which conduit includes a restrictor whereby engine pressure will not be equalized with the atmospheric pressure in the canister. A pressure relief is also provided for the oil tank by means of a one way check valve which connects the oil tank to the canister.
    Type: Grant
    Filed: December 4, 1985
    Date of Patent: July 21, 1987
    Inventor: Steven Krisiloff
  • Patent number: 4676206
    Abstract: A remotely located oil filter and a remotely operated sump drain valve are interlocked such that the drain valve can only be operated when the oil filter is removed. A cable is connected to a lever which is pivotally mounted to open the drain valve in response to movement of a bracket that is affixed to an oil filter plate. Movement of the bracket is impeded by the installed oil filter so that the drain valve cannot be opened unless the oil filter is removed.
    Type: Grant
    Filed: August 13, 1986
    Date of Patent: June 30, 1987
    Inventor: Torey W. DeGrazia, Jr.
  • Patent number: 4672932
    Abstract: An apparatus for filtering the oil flow of an engine. The apparatus includes a full-flow filter, whose forward end is adapted to permit use of the full-flow filter either with or without a by-pass filter. The rear end of the full-flow filter is attached to an oil filter bushing, in the same manner as the typical spin-on type oil filter. If the user desires to use the full-flow filter with the by-pass filter, a small hole may be punched in the forward end of the full-flow filter. From this hole, a small portion of oil flows through a connecting hose into the by-pass filter. This small portion of oil is then filtered by the by-pass filter and flows out of the by-pass filter through a second connecting hose to an existing oil system line access, such as the drain pan plug, oil filter cap, or engine valve cover. The by-pass filter is mounted to the engine with a sleeve having grommets. A method of retrofitting an engine for use with the full-flow filter and by-pass filter is also provided.
    Type: Grant
    Filed: October 7, 1986
    Date of Patent: June 16, 1987
    Assignee: Encon Systems, Ltd.
    Inventor: Donald R. Schmidt
  • Patent number: 4648363
    Abstract: An internal combustion engine is provided with a lubricating system and a full flow oil filtering circuit arranged in parallel with the main oil lubricating circuit of the engine. The lubricating system includes drive means an oil lubricating circuit for lubricating the drive means, an oil sump connected in flow communication with the lubricating system and an oil pump connected in flow communication with the sump and a lubricating system and operably driven by the drive means for pumping oil from the sump through the lubricating circuit and back to the sump. The parallel flow oil filtering circuit includes an oil filter disposed adjacent the oil sump and connected in flow communication therewith. An oil pump is disposed adjacent the sump and connected in flow communication with the sump and the oil filtering means. The oil pump is driven by engagement with the governor gear.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: March 10, 1987
    Assignee: Tecumseh Products Company
    Inventor: Peter G. Kronich
  • Patent number: 4637355
    Abstract: A lubricating system for a two-cycle outboard motor in which lubricant is mixed with the fuel prior to delivery to the fuel bowl of the carburetor in a chamber located externally of the carburetor. The lubricant is supplied by a relatively large storage tank to a relatively smaller delivery tank that is positioned in proximity to the engine. A float operated control device is provided for maintaining an adequate lubricant level in the delivery tank and an arrangement is incorporated for insuring against operation of the pump in response to momentary changes in liquid level in the delivery tank due to inertial effects.
    Type: Grant
    Filed: October 9, 1985
    Date of Patent: January 20, 1987
    Assignees: Sanshin Kogyo Kabushiki Kaisha, Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Rou Odashima
  • Patent number: 4616610
    Abstract: A lubricating apparatus in an internal combustion engine of the horizontal type in which a main oil gallery for feeding oil to engine portions to be lubricated is provided substantially parallel to the engine crank shaft in the bearing cap secured to engine block for rotatably supporting the crank shaft, and an oil filter is provided on the bearing cap at a central portion in the direction of the crank shaft. The oil pump is provided on one end of the crank shaft and oil passages are formed in the bearing cap for conducting the oil from the oil pump to the oil filter and then from the oil filter to the central portion of said main gallery.
    Type: Grant
    Filed: March 27, 1985
    Date of Patent: October 14, 1986
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Atsushi Ishida
  • Patent number: 4615315
    Abstract: An oil cleaning assembly for an internal combustion engine comprising a centrifugal separator rotor and an oil filter element, wherein the filter element is located in an annular housing which extends around the rotor.
    Type: Grant
    Filed: May 6, 1985
    Date of Patent: October 7, 1986
    Assignee: AE PLC
    Inventor: Neil A. Graham
  • Patent number: 4615314
    Abstract: An adaptor (ladder frame 10) and oil pan assembly (14), including a method of assembly therefor, is disclosed for mounting on an internal combustion engine block (2) equipped with a lubrication system designed to receive oil for recirculation through an inlet port (22) in the ladder frame (10) offset from the center of the oil pan assembly (14) when the assembly (14) is mounted in one of two reversed positions. The oil pan assembly (14) includes an asymmetrically offset oil pan reservoir (27) and integrally connected sump pipe (28, 48) within the interior of the pan shaped in accordance with the intended position of the oil pan assembly when mounted on the engine. The shape of the sump pipe (28, 48) is selected to provide automatic alignment and connection between the reservoir (27) and the inlet port (22) when the oil pan assembly (10) and sump pipe (28, 48) are simultaneously mounted on the engine.
    Type: Grant
    Filed: January 6, 1982
    Date of Patent: October 7, 1986
    Assignee: Cummins Engine Company, Inc.
    Inventor: James D. Baugh
  • Patent number: 4611559
    Abstract: Several embodiments of outboards motors embodying four-cycle engines and improved lubricating systems therefor. In all of the embodiments, an oil reservoir is provided in the drive shaft housing and a combined screen and drain plug assembly filters the oil flowing from the oil reservoir to the engine lubricating system and for facilitating servicing of the screen by removal of the drain plug. In one embodiment, the oil reservoir is formed integrally with the drive shaft housing. A pressure relief valve depends in to the oil reservoir and is carried by a plate that connects the engine to the drive shaft housing for facilitating servicing and reducing the likelihood of leakage back of oil to the engine when the outboard motor is tilted up. An improved relief valve screen assembly is also illustrated in one embodiment where in the screen may be bypassed if it becomes clogged.
    Type: Grant
    Filed: September 12, 1984
    Date of Patent: September 16, 1986
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventor: Yukio Sumigawa
  • Patent number: 4603244
    Abstract: A jacket for maintaining or adding heat to a diesel fuel-type fuel filter as fuel passes through the filter in order to decrease the incidence of congealing and avoid problems associated with condensation. The jacket includes a sleeve of thermally insulative material closely surrounding the fuel filter housing. A mounting ring has a base embedded in the jacket and mounting fingers extended axially from the upper edge of the sleeve. The mounting fingers are bendable over the top wall of the fuel filter element housing. Heating means embedded in the sleeve selectively provide heat to the fuel filter housing for transfer to passing diesel-type fuel.
    Type: Grant
    Filed: July 19, 1984
    Date of Patent: July 29, 1986
    Inventor: Marlin J. Genz
  • Patent number: 4592836
    Abstract: The present invention is an engine oil cleaner comprising the oil cleaner body, a corrugated porous paper board (or non-corrugated porous paper board), a polar plate, a filter cartridge, an electric conduction spring plate, several insulating rubber items and a high voltage electrostatic generator, wherein its feature lies in that the high voltage electrostatic generator is used to produce a electrostatic field between the casing body of the engine oil cleaner body and the polar plate and in this electrostatic field fully fills up the engine oil cleaner body, thus making the very small metal particles inducted and hereby possess electric charges which then are absorbed on the surface of the corrugated porous paper board, and the filter cartridge is used to filter out the smaller metal particles twice and also to eliminate the moisture and the catalysts such as the extraneous matters in the engine oil, thus preventing the engine oil from becoming deteriorated as well as extending the life of the engine oil so
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: June 3, 1986
    Inventor: Yi-Shong Chiao
  • Patent number: 4561395
    Abstract: An auxiliary or secondary filtration system for diverting and filtering a portion of the normal oil flow of an engine comprising a secondary filter unit having an inlet for receiving the diverted portion of the oil flow and an outlet for returning filtered oil to the engine. The outlet is connected to an existing access to the engine crankcase, such as the oil dipstick tube or the oil inlet for adding oil to the engine.
    Type: Grant
    Filed: June 25, 1984
    Date of Patent: December 31, 1985
    Inventor: Tod McMullen
  • Patent number: 4524733
    Abstract: Oil filter apparatus including a first modified high performance full-flow filter and a second super efficient by-pass filter. The modified full-flow filter is adapted to permit the attachment of a by-pass filter hose thereto on the forward end thereof for passage of a portion of oil from the modified full-flow filter to the by-pass filter. A drain plug hose is further connected to the by-pass filter for passage of oil from the by-pass filter to the oil pan. The by-pass filter hose and drain plug hose are connected to the modified full-flow filter, by-pass filter, and the oil pan by means of pivotal swivel fittings adapted to permit attachment of the filter apparatus to any make automobile. The by-pass filter may be mounted inside of a neoprene coated nylon sleeve, by a special mounting bracket, or by a modified by-pass filter base. A method of retrofitting an engine to accommodate the oil filter apparatus is also provided.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: June 25, 1985
    Assignee: Encon Systems, Ltd.
    Inventor: Donald R. Schmidt
  • Patent number: 4522166
    Abstract: The object of the invention is a device for the improving of the starting of an internal combination engine especially during the cold seasons. The device (7) comprises a chamber (10) with the inlet and outlet conduits (121,111). In combination with the chamber (10) is installed a heating element (18, 19). The chamber (10) is connected directly with the main lubricating oil duct of the engine. Preferably the heating element forms at least a part of the flow guide (14), which is installed in a direction deviating from that of the inlet and/or outlet conduit (121,111). The device may be situated anywhere between the oil filter and/or the oil pump and the parts requiring lubrication in the engine provided that there is a direct and short connection from the device to the lubricating oil ducts of the engine.
    Type: Grant
    Filed: December 6, 1983
    Date of Patent: June 11, 1985
    Inventors: Ilkka Toivio, Terttu Toivio
  • Patent number: 4512299
    Abstract: An automotive engine is provided with an improved multifilter oil lubrication system. At least two filters are provided wherein the majority of the oil flow is through a primary coarse filter. At least one fine secondary filter is provided to filter the oil not going to the coarse filter. The oil from the fine filter is delivered directly to the engine. The improved system may be used with a smaller pump using less horsepower than previously possible by multifilter bypass systems. The addition of the fine filtration increases engine life.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: April 23, 1985
    Assignee: International Harvester Company
    Inventors: John J. Egan, Andrew B. Witkowski
  • Patent number: 4497293
    Abstract: An internal combustion engine of a motorcycle includes an oil filter fixed to a rear portion of a crank case. The crank case accommodates therein an oil pump connected to the oil filter. The oil filter is detachably provided by means of threading engagement with the crank case.
    Type: Grant
    Filed: November 19, 1982
    Date of Patent: February 5, 1985
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masatoshi Takagi, Wataru Annaka
  • Patent number: 4495909
    Abstract: The invention is designed for use with diesel engine over-the-road trucks and periodically extracts a given quantity of oil from the oil pan of the engine and ejects that quantity into the fuel tank for burning along with the regular fuel. In turn, an automatic oil level sensing device continually senses the level of oil in the engine while the engine is running thus insuring a constant infusion of fresh oil into the engine oil supply thereby effectively changing the oil as the vehicle is operated and removing the need for the discrete oil change operation.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: January 29, 1985
    Inventor: Erwin E. Hurner
  • Patent number: 4492632
    Abstract: A seal containing cast adaptor member having inlet and outlet ports for hose coupling to an externally mounted disposable cartridge-type oil filter. The housing thus permits the engine's conversion from a conventional often inaccessibly placed spin-off filter or smaller replaceable cartridge filter to a larger capacity, externally mounted filter.
    Type: Grant
    Filed: December 16, 1983
    Date of Patent: January 8, 1985
    Inventor: Fred P. Mattson
  • Patent number: 4479468
    Abstract: A port proximate to an automotive oil filter, and a closure therefor, used to precharge a newly installed oil filter with oil. The port may be located either in an adaptor mounting plate, which is located between the filter and the engine block, or in the engine block itself. The port is in fluid communication with the filter, allowing a newly installed filter to be precharged with oil to minimize engine wear.
    Type: Grant
    Filed: December 9, 1983
    Date of Patent: October 30, 1984
    Inventor: Joseph E. Norwood, Sr.
  • Patent number: 4452695
    Abstract: The filter system includes a high performance full-flow filter and the second super efficient by-pass filter. An adapter and adapter bushing is located between the engine block and the full-flow filter. The adapter is tapped to provide a pressure source through a filter hose to the by-pass filter. The by-pass filter is then connected to the low pressure side of the oil by connecting through a special drain plug fitting. The hoses are connected to the by-pass filter and the drain plug through a special pivotal connection to fit any make automobile. The by-pass filter may be mounted inside of a neoprene coated nylon sleeve or by a special mounting bracket.
    Type: Grant
    Filed: July 14, 1983
    Date of Patent: June 5, 1984
    Assignee: Energy Extension Industries
    Inventor: Donald R. Schmidt
  • Patent number: 4449493
    Abstract: A slosh baffle for selective and retroactive installation in the oil pan of an in-line internal combustion engine for automotive vehicles, the slosh baffle being attachable to the rim of the oil suction strainer by snap-action assembly, its transverse orientation being determined by means of a saddle portion on the slosh baffle which engages an elbow of the oil suction line. Attachment to the strainer rim is obtained by means of several downwardly depending flexible snap hooks on the periphery of a supporting flange of the slosh baffle, in cooperation with separate centering lugs.
    Type: Grant
    Filed: August 23, 1982
    Date of Patent: May 22, 1984
    Assignee: Filterwerk Mann & Hummel GmbH
    Inventors: Eduard Kopec, Wolfgang Oberknapp
  • Patent number: 4433656
    Abstract: A port proximate to an automotive oil filter, and a closure therefor, used to precharge a newly installed oil filter with oil. The port may be located either in an adaptor mounting plate, which is located between the filter and the engine block, or in the engine block itself. The port is in fluid communication with the filter, allowing a newly installed filter to be precharged with oil to minimize engine wear.
    Type: Grant
    Filed: July 22, 1982
    Date of Patent: February 28, 1984
    Inventor: Joseph E. Norwood, Sr.
  • Patent number: 4430971
    Abstract: For an internal combustion engine having oilspray lubrication of an overhead camshaft an assembly is provided which comprises a central filter case (21) which can connect by a nipple (31) with an existing oil supply conduit (15) in an engine to receive oil therefrom and on a downstream side of a filter screen (23) connects with pipes (20a, 20b) which have apertures whence oil sprays (36) can issue.
    Type: Grant
    Filed: December 28, 1981
    Date of Patent: February 14, 1984
    Inventor: Norman Holding
  • Patent number: 4406784
    Abstract: An adapter 10 for connecting a bypass oil filter to an internal combustion engine 14 having a full flow lubricating system is mounted between the oil filter mounting block 12 and the conventional full flow filter 16. The adapter includes means 48, 52 for diverting a portion of the circulating oil flow to the bypass filter and means 46, 74, 76 for returning that portion to the engine. The adapter includes a body portion 36 and an insert 60 which together define the passages necessary for diverting a portion of the oil flow to the bypass filter. The body includes a central axial 38 opening which receives the insert, the body and insert together defining an annular chamber 76 which receives clean oil from the bypass filter through a radial passage 46 in the body.
    Type: Grant
    Filed: April 12, 1982
    Date of Patent: September 27, 1983
    Assignee: Frantz Filters, Inc.
    Inventor: Clarence L. Cochran
  • Patent number: 4402287
    Abstract: An adapter for connecting a bypass oil filter to an internal combustion engine having a full-flow lubricating system is mounted in place of the conventional full-flow oil filter. The adapter includes a body portion which defines three interconnected passages. A first passage provides for the flow of dirty oil from the adapter to the bypass filter, while a second passage provides for the return of the filtered oil to the engine. A third passage extends between the first and second passages and allows most of the dirty oil to flow directly back to the engine. By providing a return tube with an outlet downstream of the junction of the second and third tubes, the bypass filter experiences a maximum pressure drop increasing the amount of oil flowing therethrough.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: September 6, 1983
    Assignee: Frantz Filters, Inc.
    Inventor: Clarence L. Cochran
  • Patent number: 4388185
    Abstract: For an engine to be operated under oil pressure, an oil refiner composed of a cylindrical housing having a lid and a heater means arranged in the upper portion of the housing and a plurality of radially extending fins adapted to be heated by said heater means and a plate and filter means in the housing to filter oil traveling through the device and to heat it and wherein the device includes a one-way check valve means so that oil is always present in the device for quick response upon ignition of the vehicle.
    Type: Grant
    Filed: April 26, 1982
    Date of Patent: June 14, 1983
    Inventors: Norman Ott, Jeanette O. McKeachern
  • Patent number: 4387764
    Abstract: A gasket screening assembly for an internal combustion engine having an auxiliary oil cooler. A gasket screening assembly is provided between a flange on the block and a complementary flange on the cooler support. Four passageways, two for oil and two for coolant are provided between the cooler support and block through the gasket screening assembly, each being sealed from the other. The coolant path from the block to the cooler support through the gasket assembly is provided with a gasket portion which screens out particles which would tend to block the oil cooler tubes. The gasket screening assembly includes a core, peripheral facing layers and a central zone devoid of facing material. The central zone defines a multiplicity of substantially circular perforations of from 1/8 inch to 3/16 inch in diameter in staggered rows. The zone having the facing layers defines clear-through oil inlet and outlet openings and a clear-through coolant return opening.
    Type: Grant
    Filed: December 3, 1981
    Date of Patent: June 14, 1983
    Assignee: Felt Products Mfg. Co.
    Inventor: Marc D. Lister
  • Patent number: 4369110
    Abstract: An oil filter for use on internal combustion engines, the filter having a body portion with an interior recess opening therein and with a threaded opening at the recessed end to receive the attachment of a filter cartridge, the body having an oil inlet, an oil outlet and a vent opening, a needle member extending from the body portion centrally of the end adapted to receive the attachment of a filter cartridge, the needle portion being connected with the oil inlet, the filter cartridge having packing material therein, the cartridge being threadably secured to the body so that the needle extends through the packing and, when the filter cartridge is in place, the end of needle is adjacent the cartridge interior bottom, oil passing into the filter flowing through the needle and being discharged within the cartridge and flowing through the packing material and into the body opening and out through the oil outlet, the space between the filter cartridge and the body interior being separated by a plate having steps o
    Type: Grant
    Filed: August 13, 1981
    Date of Patent: January 18, 1983
    Assignees: David L. Priest, Harold L. Priest, Michael G. Priest, Bessie A. Rainer
    Inventor: Robert A. Picek
  • Patent number: 4354946
    Abstract: An oil reconditioner for use with an internal combustion engine is provided for returning the reconditioned oil to the engine under pressure. The oil reconditioner has an oil filter chamber into which a first portion of a pressurized stream of oil from the high pressure side of the engine is directed so that the oil may flow through the filter chamber and into a heated vaporization chamber thereabove for vaporizing any liquid contaminants within the filtered oil to thereby recondition the oil. The reconditioned oil from the vaporization chamber is directed into and joined with the pressurized unreconditioned portion of the stream of oil that has bypassed the oil filter and vaporization chambers so that the reconditioned oil will return to the engine under pressure along with the pressurized unreconditioned portion of the stream of oil.
    Type: Grant
    Filed: July 22, 1981
    Date of Patent: October 19, 1982
    Assignee: Frank M. Warlick
    Inventors: Frank M. Warlick, Carl J. Eloff
  • Patent number: 4335688
    Abstract: A coupling adapter is disclosed for coupling a remotely-located fluid circulation device and a fluid filter to the fluid reservoir of an engine, transmission unit or other hydraulic system in place of a standard spin-on fluid filter. The adapter consists of a disk-shaped body having first and second spaced-apart end surfaces. First and second cylindrically-shaped cavities extend partially into the disk-shaped body, respectively, from the first and second end surfaces. A plurality of concentric ridges intersticed with concentric grooves is provided in the first end surface surrounding the first cylindrically-shaped cavity. A central wall section within the disk-shaped body separates the first and second cavities. A central bore extends coaxially through the central wall section for receiving and supporting a hollow nipple adapted to align and secure the coupling adapter to the fluid reservoir.
    Type: Grant
    Filed: September 12, 1980
    Date of Patent: June 22, 1982
    Inventor: Paul W. Diederich, Jr.
  • Patent number: 4329231
    Abstract: A thermally insulating fuel filter cover provides thermal insulation of the fuel filter of a diesel engine such as is used in the trucking industry. The cover is a flexible cylindrical body of thermal insulating material such as expandable urethane foam which has a closed end, an open end, and a hollow interior portion for receiving the fuel filter. The cover is slidable over the fuel filter and is flexible so as to form a friction fit. The cover encloses the exposed surfaces of the fuel filter and provides thermal insulation to help prevent waxing and freeze-up of the fuel in the fuel filter in cold weather.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: May 11, 1982
    Assignee: Mitthoff Corporation
    Inventors: Edward L. Hoffman, David L. Mitton
  • Patent number: 4324213
    Abstract: A compact lubrication fluid filtering and cooling assembly including a bracket (16) for simultaneously mounting a pair of lubrication filters, (12 and 14) and a lubrication fluid cooler (10) on the block (4) of an internal combustion engine equipped with an internally contained lubrication circuit and providing fluid connection therewith. The bracket (16) provides a plurality of fluid flow passages (30, 77, 80, 88 and 91a) whereby lubrication fluid is conducted from the main engine oil discharge port (24) into bracket (16) into a first discharge port (26) leading to filter (12) from which oil is returned to the bracket for delivery to cooler (10), and from cooler (10) back through bracket (16) to the main return port on the engine block.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: April 13, 1982
    Assignee: Cummins Engine Company, Inc.
    Inventors: Edward W. Kasting, Richard E. Glasson, Roy J. Primus
  • Patent number: 4246115
    Abstract: An interlock is disclosed for permitting only one of a plurality of interrelated valve elements to be operated at one time. A transverse channel is formed in each valve element for alignment with a channel formed in the valve housing when the valve elements are moved to their respective opened positions. When any one valve element is moved to its closed position, camming surfaces formed on the valve element are positioned and shaped to cause a train of end abutting links disposed within the valve and housing channels to be displaced in a manner to lock the remaining valves in their respective open positions. The valve channels and camming surfaces are formed by very simple and inexpensive linear cutting operations thereby allowing the disclosed device to be inexpensively manufactured.
    Type: Grant
    Filed: August 28, 1978
    Date of Patent: January 20, 1981
    Assignee: Cummins Engine Company, Inc.
    Inventor: Bryan W. Swank
  • Patent number: 4177786
    Abstract: Feeding means supplies lubricant to a lubricant metering pump on a machine or engine which contains at least one shaft of which a bearing surface is mounted in a journal bearing and is pressure-lubricated.
    Type: Grant
    Filed: June 8, 1978
    Date of Patent: December 11, 1979
    Assignee: Audi Nsu Auto Union Aktiengesellschaft
    Inventors: Wulf Leitermann, Rolf Lechler
  • Patent number: 4174699
    Abstract: An engine oil cooling and filtering arrangement with a valve controlled bypass for the cooler and another valve controlled bypass for the filter.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: November 20, 1979
    Assignee: General Motors Corporation
    Inventor: Lloyd T. Gill
  • Patent number: 4151823
    Abstract: A quick-change oil filter/reservoir system for an internal combustion engine is provided in the form of a cartridge or canister containing an oil filter and precharged with a fresh supply of engine oil. The cartridge is releasably carried on a mount by quick-release fasteners and includes non-manipulative, self-sealing input and output fittings on the bottom surface which engage corresponding oil lines provided on the cartridge mount and connected to the engine oil pumps. In addition to the engine's primary oil pump, a secondary or scavanging oil pump is provided to continuously return engine oil from the engine's sump to the filter/reservoir cartridge. To accomplish an oil and filter change, the used cartridge, containing the used filter and the bulk of the used engine oil, is merely replaced with a new cartridge containing a fresh filter and engine oil.
    Type: Grant
    Filed: July 28, 1977
    Date of Patent: May 1, 1979
    Inventors: Leland J. Grosse, John B. Wessman
  • Patent number: 4075099
    Abstract: This disclosure relates to a novel container assembly wherein oil required for the changing of oil of a unit, such as an internal combustion engine, may be packaged in a readily disposable container and wherein the container has built thereinto the usual filter so that in a simple operation both the filter and old oil may be removed as a unit.
    Type: Grant
    Filed: September 2, 1975
    Date of Patent: February 21, 1978
    Assignee: The Continental Group, Inc.
    Inventors: Peter G. Pelton, Alan A. Grubman, Gary Hasegawa
  • Patent number: 4056168
    Abstract: An arrangement of the suction funnel of a lubricating oil pump in the oil pan of an internal combustion engine, in which the suction funnel is supported at the bottom of the oil pan by means of an elastic spacer member and the interior space of the suction funnel is in sealed connection with the interior space of the hollow spacer member; the spacer member rests with its lower end on the bottom of the oil pan by means of a bead-like, relatively inelastic support rim which is provided with one or several openings, the spacer member directly surrounds the inlet end of the suction funnel with prestress by means of its part disposed in the upper half thereof and constructed of larger diameter than the lower half in such a manner that a screen filter arranged in the suction funnel is force-lockingly and form-lockingly clamped with its retaining rim clamped between the inlet end of the suction funnel and the part at the upper half of the spacer member.
    Type: Grant
    Filed: December 3, 1975
    Date of Patent: November 1, 1977
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventor: Alfred Bajohr
  • Patent number: 3982520
    Abstract: An oil filter mounting means for an internal combustion engine has an engine engaging end dimensioned and shaped to be mounted on an engine fitting on which an oil filter is normally mounted and has an opposite end with a threaded nipple for receiving an oil filter with first and second conduits extending through the fitting member and a valve means for opening or closing the conduits to permit flow of oil through the filter or to block the flow of oil to permit the filter to be changed without interruption of the operation of the engine.
    Type: Grant
    Filed: August 14, 1975
    Date of Patent: September 28, 1976
    Inventor: Bill L. Wheeler
  • Patent number: 3978671
    Abstract: A dual air-oil separator which separates two air-oil mixtures of differing proportions in a single unit having first and second chambers for the separate mixtures. The two chambers are separated by a perforated partition wall. The air-oil mixture, high in air is separated as it passes from the first chamber through the perforated wall and into the second chamber. The second chamber directly receives the air-oil mixture, low in air, for separation and combination in its sump with the oil from the first chamber.
    Type: Grant
    Filed: October 15, 1974
    Date of Patent: September 7, 1976
    Assignee: The Cessna Aircraft Company
    Inventor: Cesar Gonzalez