US3372679A - Fuel tank venting system - Google Patents
Fuel tank venting system Download PDFInfo
- Publication number
- US3372679A US3372679A US545729A US54572966A US3372679A US 3372679 A US3372679 A US 3372679A US 545729 A US545729 A US 545729A US 54572966 A US54572966 A US 54572966A US 3372679 A US3372679 A US 3372679A
- Authority
- US
- United States
- Prior art keywords
- fuel
- fuel tank
- expansion chamber
- tank
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
Definitions
- the present invention relates to a fuel tank venting system and particularly to a venting system for chain saws driven by internal combustion engines.
- Pressures in a chain saw fuel tank will build up from one or more of the following causes: (1) By filling a warm fuel tank with cool or cold fuel. As heat is transferred from the saw to the fuel mix (gasoline and oil), the fuel expands and produces pressure. (2) When gasoline is agitated or shaken, it builds up pressure in the tank. (3) Heat produced by operation of the chain saw engine will cause fuel to expand and vaporize causing pressure. (4) In any circumstance in which a cool saw is filled with fuel and then subjected to an increase in temperature, tank pressure will be increased.
- a chain saw is used to cut down trees while in one position while it is used in other positions to cut up trees or cut off limbs after the trees are felled.
- a chain saw is turned over on its right side with the guide bar and saw chain in a horizontal plane.
- the chain saw is positioned vertically so that the fuel tank opening cap is on top and the guide bar and saw chain are in a vertical plane.
- the chain saw can be used in any position but the most common positions are the felling and bucking positions mentioned above.
- FIGURE 1 shows a left side view of a chain saw in which the invention can be used
- FIGURE 2 shows a left side schematic view of the fuel tank venting system with arrows to show the direction of the excess fuel, etc. when excessive pressure is present in the fuel tank;
- FIGURE 3 is similar to FIGURE 2 except that the venting system is now working in the situation where there is excessive vacuum in the fuel tank;
- FIGURE 4 is a top view of the fuel tank and carburetor chambers showing the air venting means.
- FIGURE 1 of the drawing ShOWs a conventional chain saw 10 having a gasoline engine 12 to drive a saw chain 14- around a stationary guide bar 16. An operator would normally hold the chain saw by grasping the front handle 18 with his left hand and the rear handle 20 with his right hand.
- the ignition switch 22, the manual oiler but- :ton 24 and the engine throttle trigger 26 are thus easily within reach of the operators right hand.
- the fuel tank 28 is shown at the front of the engine and has a solid filler cap 30.
- the carburetor chamber 32 is shown to the rear of the fuel tank and has a cover 34 removably attached thereto.
- Cover knob 36 is a threaded nut to secure cover 34 to carburetor chamber 32 and provides an operator with something to grab when lifting the cover 34 from the carburetor chamber to gain access thereto.
- Oarburetor chamber 32 has an imperforate bottom wall 32a which permits any excess fuel to accumulate in the bottom portion of the carburetor chamber.
- a recoil starter assembly 38 is shown on the left side of the engine.
- FIGURE 1 shows the chain saw in the normal bucking position in which the fuel tank 28, saw chain 14, and guide bar 16 are vertically disposed.
- the felling position would be when the chain saw is turned at a right angle in a clockwise direction from the position shown in FIGURE 1 as viewed from the rear so that the fuel tank, saw chain and guide bar are in a substantially horizontal position.
- Fuel tank 28 is part of an integral structure which also includes an oil reservoir 40 and an expansion chamber 42.
- a fuel pick-up 44 having a belltype end 46 with a felt filter 48 therein is positioned within the fuel tank.
- the other end of the pickup 44 extends to a fitting through a side wall of the fuel tank which connects to a feed line 50 which enters the carburetor chamber 32 and connects to the carburetor 52.
- the fuel tank 28 and the expansion chamber 42 are separated by a common wall 54 having apertures 54a and 54b therein in which an excess pressure valve assembly 56 and an excess vacuum valve assembly 58 are mounted.
- the excess pressure valve 56 is a ball check valve while the excess vacuum valve 58 is a sensitive flutter-type valve. How-ever, applicants invention is not limited to the type of valve used en either instance.
- a fuel retainer 60 e.g., a sponge made of flexible polyurethane, is positioned to fill the expansion chamber 42 and functions to pick up and hold liquid fuel which is forced into the expansion chamber. This prevents most of such fuel from flowing out through the air tube opening located on the opposite side of the chamber.
- the fuel retainer 60 also serves to filter out any small particles of foreign matter that might clog the delicate flutter valve 58, on the lower side of the expansion chamber when fuel returns to the tank 28 from the expansion chamber 42.
- Connected to the upper, rear, left-hand corner of the expansion chamber by use of a fitting 62 is an air vent means comprising an elongated tube 64.
- This connection location Prevents fuel from flowing into the air vent tube (by gravity) during usual bucking and felling positions of the saw.
- the other end of the tube 64 including a bell-end 66 having notches 66a thereon and a felt filter 68 inserted therein, is fastened to bottom wall 32a in the right rear corner of the carburetor chamber so that when a felling cut is made with the fan side of the saw down i.e., when the chain saw is turned 90 degrees counterclockwise of the position shown in FIGURE 1, as viewed from the rear, fuel will not flow into the air tube by gravity because the outer end of the tube is now in a higher position than the expansion chamber.
- Fuel pick-up 44 and air vent tube 64 can be conventional fuel resistant rubber tubes or, in general, any flexible member would work satisfactorily.
- the expansion chamber 42 is provided into which the excess volume of fuel may flow. Volume of this chamber should be about one twelfth of the fuel tank volume in order to be sufiicient to hold expansion induced by a temperature increase of 150 F.
- ball check valve 56 (see FIGURE 2) must be partially opened by excessive pressure within the fuel tank. As an example, the valve 56 may be set to open at about 6 psi. This would then prevent liquid fuel from splashing into the expansion chamber and keep gases below 6 p.s.i. pressure from entering the chamber.
- a fuel tank having an opening therein to provide access to the interior of said tank, removable cap means closing off said opening, an expansion chamber located outside of and adjacent to said tank, valve means through which said fuel and air can pass between said fuel tank and said expansion chamber, said valve means being actuated by predetermined pressure conditions within said fuel tank, air vent means having a first portion thereof in communication with said expansion chamher and having a second portion connected to a second chamber which is open to atmospheric pressure.
- said fuel tank and said expansion chamber being separated by a common wall, said valve means being positioned in said common wall and comprising at least one excess pressure valve assembly and one excess vacuum valve assembly, said excess pressure valve assembly being adapted to open up upon a predetermined excessive pressure being present in the fuel tank to permit excessive fuel and pressure to escape into said expansion chamber, said excess vacuum valve assembly being adapted to Open up upon an excessive vacuum being present in the fuel tank to permit atmospheric air and any excess fuel in the expansion chamber to enter said fuel tank.
- said air vent means comprises an elongated tube, said first portion of said air vent means comprising the inner end of said tube which is connected to said expansion chamber at a location which prevents fuel from flowing by gravity into the tube during the normal vertical position of the tool when the fuel tank cap means is on top and when the tool is turned to the right so as to be perpendicular to said vertical position; the other outer end of the tube being located in said second chamber so that when the tool is turned to the left so as to he perpendicular to said normal vertical position, the fuel will not flow into the tube by gravity because the outer end of the tube is in a higher position than the expansion chamber.
- said second chamber comprises a carburetor chamber in which a carburetor is mounted, said carburetor chamber having an imperforate bottom portion which permits accumulation of excess fuel from the expansion chamber and spit back from the carburetor, said air vent means comprising an elongated tube having one end thereof connected to said expansion chamber and having the opposite end mounted so as to rest on said imperforate bottom portion of said carburetor chamber, said opposite end of said elongated tube having means thereon to permit air and any excess fuel in the carburetor chamber to be pulled into said elongated tube.
- said expansion chamber is located adjacent the upper portion of the fuel tank when said portable tool is in its normal position in which the fuel tank cap means is on top, said air vent means comprising an elongated tubular member having absorbent filter means therein thereby permitting the aid vent means to function as a storage area for excess fuel as well as a filter for air and excess fuel which passes through the air vent means to reach the expansion chamber.
- a venting system for a chain saw which is driven by an internal combustion engine comprising a fuel tank mounted on said chain saw, an opening in the top of said fuel tank to provide access thereto, an imperforate, re-
- an expansion chamber integrally connected with said fuel tank and having a common Wall therewith, apertures in said common wall to provide communication between said fuel tank and said expansion chamber, valve means positioned in said apertures which are normally closed when the pressure within the fuel tank is at atmospheric pressure, certain of said valve means being actuated by predetermined pressure above atmospheric pdessure and certain of said valve means being actuated by predetermined vacuum pressure below atmospheric pressure within said tank to open up and permit the passage of air and fuel therethrough, a fuel retaining means positioned in said expansion chamber which filters and retains excess fuel which has entered the expansion chamber, and air vent means having one portion in communication with said expansion chamber and another portion open to atmospheric pressure.
- said chain saw includes a carburetor chamber which is open to atmospheric pressure and in which a carburetor is mounted, said air vent means comprising an elongated tube which has the inner end thereof connected to said expansion chamber at a preferred location which prevents fuel from flowing into the tube by gravity during usual bucking and felling positions of the saw, the other outer end of the tube being connected to the carburetor chamber so that when a felling cut is made with the lefthand side of the saw in a down position and the saw chain is horizontal, the outer end of the tube is in a higher position than the expansion chamber.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US545729A US3372679A (en) | 1966-04-27 | 1966-04-27 | Fuel tank venting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US545729A US3372679A (en) | 1966-04-27 | 1966-04-27 | Fuel tank venting system |
Publications (1)
Publication Number | Publication Date |
---|---|
US3372679A true US3372679A (en) | 1968-03-12 |
Family
ID=24177341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US545729A Expired - Lifetime US3372679A (en) | 1966-04-27 | 1966-04-27 | Fuel tank venting system |
Country Status (1)
Country | Link |
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US (1) | US3372679A (en) |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3561414A (en) * | 1969-01-17 | 1971-02-09 | Textron Inc | Fuel tank for internal combustion engine |
US3709202A (en) * | 1971-01-21 | 1973-01-09 | Outboard Marine Corp | Crankcase drainings recycling system |
US3881452A (en) * | 1973-01-22 | 1975-05-06 | Mcculloch Corp | Method and apparatus for operating an engine-driven chain saw in an environment where ice may form in the carburetor of the engine |
US3904878A (en) * | 1972-09-01 | 1975-09-09 | Xmas Inc | Pipeline crawler type x-ray machine |
US4285309A (en) * | 1979-11-13 | 1981-08-25 | Jonsereds Aktiebolag | Housing for an internal combustion engine |
US4852761A (en) * | 1988-07-25 | 1989-08-01 | General Motors Corporation | In tank vapor storage canister |
US4919103A (en) * | 1987-02-28 | 1990-04-24 | Nippondenso Co., Ltd. | Device for controlling evaporative emission from a fuel tank |
US5676115A (en) * | 1994-08-05 | 1997-10-14 | Andreas Stihl | Work apparatus having an internal combustion engine |
US6182693B1 (en) * | 1999-06-08 | 2001-02-06 | Delphi Technologies, Inc. | Vapor canister and fuel tank assembly |
US6390074B1 (en) * | 2000-05-12 | 2002-05-21 | Ford Global Technologies, Inc. | Fuel assembly |
US6491180B2 (en) * | 1998-11-18 | 2002-12-10 | Mannesmann Vdo Ag | Fuel tank |
GB2401910A (en) * | 2003-05-20 | 2004-11-24 | Stihl Ag & Co Kg Andreas | Manually operated tool powered by i.c. engine |
US20050126548A1 (en) * | 2003-12-04 | 2005-06-16 | Yoshikazu Yamada | General-purpose engine |
US20050284450A1 (en) * | 2004-06-23 | 2005-12-29 | Eaton Corporation | Small engine fuel tank with integrated evaporative controls |
US20060042604A1 (en) * | 2002-04-12 | 2006-03-02 | Haskew Harold M | Stationary evaporative emission control system |
US20060096583A1 (en) * | 2004-11-05 | 2006-05-11 | Shears Peter D | Integrated fuel tank and vapor containment system |
US20060096584A1 (en) * | 2004-11-05 | 2006-05-11 | Shears Peter D | Integrated fuel tank and vapor containment system |
US20060130816A1 (en) * | 2004-12-20 | 2006-06-22 | Vaughn K. Mills | Controlling vapor emission in a small engine fuel tank system |
US20070169758A1 (en) * | 2004-06-23 | 2007-07-26 | Eaton Corporation | Small engine fuel tank with integrated evaporative controls |
US20070199547A1 (en) * | 2006-02-27 | 2007-08-30 | Shears Peter D | Filter canister family |
US20070283937A1 (en) * | 2006-05-22 | 2007-12-13 | Miniature Precision Components, Inc. | Passive evaporative emission control module |
US20080053413A1 (en) * | 2006-08-31 | 2008-03-06 | Tecumseh Products Company | Sealed fuel tank evaporative emissions control system for small internal combustion engines |
US7435289B2 (en) | 2005-09-27 | 2008-10-14 | Briggs & Stratton Corporation | Integrated air cleaner and vapor containment system |
CN101302976A (en) * | 2007-05-11 | 2008-11-12 | 安德烈亚斯.斯蒂尔两合公司 | Hand-held power tool |
US20100024898A1 (en) * | 2008-07-29 | 2010-02-04 | General Electric Company | Fuel tank vent including a membrane separator |
US20100095937A1 (en) * | 2008-10-21 | 2010-04-22 | Hudak Eric B | System and method for venting fuel vapors in an internal combustion engine |
US20100200204A1 (en) * | 2007-07-30 | 2010-08-12 | Masaki Chiba | Cooling apparatus of electronic equipment |
US11186007B2 (en) | 2012-10-31 | 2021-11-30 | Husqvarna Ab | Oil reservoir for chainsaw with pressure releasing valve |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1653387A (en) * | 1924-08-06 | 1927-12-20 | United Iron Works Inc | Storage tank for volatile liquids |
US1689352A (en) * | 1926-05-19 | 1928-10-30 | Harry R Maxon | System for gathering gas from oil tanks, etc., of refineries |
US1841691A (en) * | 1929-11-29 | 1932-01-19 | Standard Oil Co | Automobile or aeroplane fuel tank breather |
US2126367A (en) * | 1936-06-05 | 1938-08-09 | Continental Oil Co | Tank for volatile liquids |
US2407622A (en) * | 1943-11-01 | 1946-09-10 | Merritt R Wells | Fuel tank |
US2640627A (en) * | 1949-01-15 | 1953-06-02 | Vadolt Trust | Vapor recovery system for fuel tanks |
US2696931A (en) * | 1949-11-02 | 1954-12-14 | Theron D Whidden | Safety equipment for fuel tanks |
US3170005A (en) * | 1963-01-30 | 1965-02-16 | Tillotson Mfg Co | Fuel feed system for internal combustion engines |
US3259752A (en) * | 1962-10-24 | 1966-07-05 | Honda Gijutsu Kenkyusho Kk | Portable engine |
US3277812A (en) * | 1963-12-20 | 1966-10-11 | Behlen Mfg Company Inc | Material storage means |
-
1966
- 1966-04-27 US US545729A patent/US3372679A/en not_active Expired - Lifetime
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1653387A (en) * | 1924-08-06 | 1927-12-20 | United Iron Works Inc | Storage tank for volatile liquids |
US1689352A (en) * | 1926-05-19 | 1928-10-30 | Harry R Maxon | System for gathering gas from oil tanks, etc., of refineries |
US1841691A (en) * | 1929-11-29 | 1932-01-19 | Standard Oil Co | Automobile or aeroplane fuel tank breather |
US2126367A (en) * | 1936-06-05 | 1938-08-09 | Continental Oil Co | Tank for volatile liquids |
US2407622A (en) * | 1943-11-01 | 1946-09-10 | Merritt R Wells | Fuel tank |
US2640627A (en) * | 1949-01-15 | 1953-06-02 | Vadolt Trust | Vapor recovery system for fuel tanks |
US2696931A (en) * | 1949-11-02 | 1954-12-14 | Theron D Whidden | Safety equipment for fuel tanks |
US3259752A (en) * | 1962-10-24 | 1966-07-05 | Honda Gijutsu Kenkyusho Kk | Portable engine |
US3170005A (en) * | 1963-01-30 | 1965-02-16 | Tillotson Mfg Co | Fuel feed system for internal combustion engines |
US3277812A (en) * | 1963-12-20 | 1966-10-11 | Behlen Mfg Company Inc | Material storage means |
Cited By (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3561414A (en) * | 1969-01-17 | 1971-02-09 | Textron Inc | Fuel tank for internal combustion engine |
US3709202A (en) * | 1971-01-21 | 1973-01-09 | Outboard Marine Corp | Crankcase drainings recycling system |
US3904878A (en) * | 1972-09-01 | 1975-09-09 | Xmas Inc | Pipeline crawler type x-ray machine |
US3881452A (en) * | 1973-01-22 | 1975-05-06 | Mcculloch Corp | Method and apparatus for operating an engine-driven chain saw in an environment where ice may form in the carburetor of the engine |
US4285309A (en) * | 1979-11-13 | 1981-08-25 | Jonsereds Aktiebolag | Housing for an internal combustion engine |
US4919103A (en) * | 1987-02-28 | 1990-04-24 | Nippondenso Co., Ltd. | Device for controlling evaporative emission from a fuel tank |
US4852761A (en) * | 1988-07-25 | 1989-08-01 | General Motors Corporation | In tank vapor storage canister |
US5676115A (en) * | 1994-08-05 | 1997-10-14 | Andreas Stihl | Work apparatus having an internal combustion engine |
DE4427738B4 (en) * | 1994-08-05 | 2005-11-24 | Fa. Andreas Stihl | Work tool with an internal combustion engine |
US6491180B2 (en) * | 1998-11-18 | 2002-12-10 | Mannesmann Vdo Ag | Fuel tank |
US6182693B1 (en) * | 1999-06-08 | 2001-02-06 | Delphi Technologies, Inc. | Vapor canister and fuel tank assembly |
US6390074B1 (en) * | 2000-05-12 | 2002-05-21 | Ford Global Technologies, Inc. | Fuel assembly |
US20060042604A1 (en) * | 2002-04-12 | 2006-03-02 | Haskew Harold M | Stationary evaporative emission control system |
US7159577B2 (en) | 2002-04-12 | 2007-01-09 | Briggs And Stratton Corporation | Stationary evaporative emission control system |
GB2401910A (en) * | 2003-05-20 | 2004-11-24 | Stihl Ag & Co Kg Andreas | Manually operated tool powered by i.c. engine |
US20040231633A1 (en) * | 2003-05-20 | 2004-11-25 | Andreas Stihl Ag & Co., Kg | Manually operated tool |
GB2401910B (en) * | 2003-05-20 | 2005-04-13 | Stihl Ag & Co Kg Andreas | Manually operable power tool |
DE10322641B4 (en) * | 2003-05-20 | 2016-02-04 | Andreas Stihl Ag & Co. Kg | Hand-held implement with a tank housing and a venting device |
US6955152B2 (en) | 2003-05-20 | 2005-10-18 | Andreas Stihl Ag & Co Kg | Manually operated tool |
CN100377845C (en) * | 2003-05-20 | 2008-04-02 | 安德烈亚斯·斯蒂尔两合公司 | Manually operated tool |
US7086389B2 (en) * | 2003-12-04 | 2006-08-08 | Honda Motor Co., Ltd. | General-purpose engine |
US20050126548A1 (en) * | 2003-12-04 | 2005-06-16 | Yoshikazu Yamada | General-purpose engine |
US7213583B2 (en) * | 2004-06-23 | 2007-05-08 | Eaton Corporation | Small engine fuel tank with integrated evaporative controls |
US7383825B2 (en) | 2004-06-23 | 2008-06-10 | Eaton Corporation | Small engine fuel tank with integrated evaporative controls |
US20070169758A1 (en) * | 2004-06-23 | 2007-07-26 | Eaton Corporation | Small engine fuel tank with integrated evaporative controls |
US20050284450A1 (en) * | 2004-06-23 | 2005-12-29 | Eaton Corporation | Small engine fuel tank with integrated evaporative controls |
US20060096584A1 (en) * | 2004-11-05 | 2006-05-11 | Shears Peter D | Integrated fuel tank and vapor containment system |
US7086390B2 (en) * | 2004-11-05 | 2006-08-08 | Briggs & Stratton Corporation | Integrated fuel tank and vapor containment system |
US20060096583A1 (en) * | 2004-11-05 | 2006-05-11 | Shears Peter D | Integrated fuel tank and vapor containment system |
US7185640B2 (en) | 2004-11-05 | 2007-03-06 | Briggs & Stratton Corporation | Integrated fuel tank and vapor containment system |
US20060130816A1 (en) * | 2004-12-20 | 2006-06-22 | Vaughn K. Mills | Controlling vapor emission in a small engine fuel tank system |
US7234452B2 (en) * | 2004-12-20 | 2007-06-26 | Eaton Corporation | Controlling vapor emission in a small engine fuel tank system |
US7435289B2 (en) | 2005-09-27 | 2008-10-14 | Briggs & Stratton Corporation | Integrated air cleaner and vapor containment system |
US7281525B2 (en) | 2006-02-27 | 2007-10-16 | Briggs & Stratton Corporation | Filter canister family |
US20070199547A1 (en) * | 2006-02-27 | 2007-08-30 | Shears Peter D | Filter canister family |
US20070283937A1 (en) * | 2006-05-22 | 2007-12-13 | Miniature Precision Components, Inc. | Passive evaporative emission control module |
US7311088B1 (en) * | 2006-05-22 | 2007-12-25 | Miniature Precision Components, Inc. | Passive evaporative emission control module |
US20080053413A1 (en) * | 2006-08-31 | 2008-03-06 | Tecumseh Products Company | Sealed fuel tank evaporative emissions control system for small internal combustion engines |
US20080276912A1 (en) * | 2007-05-11 | 2008-11-13 | Andreas Stihl Ag & Co. Kg | Hand-Held Power Tool |
US7806107B2 (en) * | 2007-05-11 | 2010-10-05 | Andreas Stihl Ag & Co. Kg | Hand-held power tool |
CN101302976A (en) * | 2007-05-11 | 2008-11-12 | 安德烈亚斯.斯蒂尔两合公司 | Hand-held power tool |
US20100200204A1 (en) * | 2007-07-30 | 2010-08-12 | Masaki Chiba | Cooling apparatus of electronic equipment |
US8511342B2 (en) * | 2007-07-30 | 2013-08-20 | Nec Corporation | Cooling apparatus of electronic equipment |
US20100024898A1 (en) * | 2008-07-29 | 2010-02-04 | General Electric Company | Fuel tank vent including a membrane separator |
US20100095937A1 (en) * | 2008-10-21 | 2010-04-22 | Hudak Eric B | System and method for venting fuel vapors in an internal combustion engine |
US8281769B2 (en) * | 2008-10-21 | 2012-10-09 | Kohler Co. | System and method for venting fuel vapors in an internal combustion engine |
US11186007B2 (en) | 2012-10-31 | 2021-11-30 | Husqvarna Ab | Oil reservoir for chainsaw with pressure releasing valve |
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Owner name: DESA INTERNATIONAL, INC., 2701 INDUSTRIAL DRIVE, B Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DESA INDUSTRIES, INC.;REEL/FRAME:004495/0694 Effective date: 19850329 |
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Owner name: GENERAL ELECTRIC CREDIT CORPORATION, A CORP. OF NY Free format text: SECURITY INTEREST;ASSIGNOR:DESA INTERNATIONAL, INC.;REEL/FRAME:004558/0840 Effective date: 19860527 Owner name: GENERAL ELECTRIC CREDIT CORPORATION,CONNECTICUT Free format text: SECURITY INTEREST;ASSIGNOR:DESA INTERNATIONAL, INC.;REEL/FRAME:004558/0840 Effective date: 19860527 |
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Owner name: COPENHAGEN HANDELSBANK A/S (AKTIESELSKABET KJOEBEN Free format text: SECURITY INTEREST;ASSIGNOR:DESA INTERNATIONAL, INC.;REEL/FRAME:005036/0763 Effective date: 19881222 |
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Owner name: DESA INTERNATIONAL, INC., KENTUCKY Free format text: TERMINATION AND RELEASE;ASSIGNOR:COPENHAGEN HANDELSBANK A/S (NOW KNOW AS DEN DANSKE BANK);REEL/FRAME:009123/0794 Effective date: 19980414 Owner name: DESA INTERNATIONAL, INC., KENTUCKY Free format text: RELEASE AND TERMINATION;ASSIGNOR:GENERAL ELECTRIC CAPITAL CORPORATION;REEL/FRAME:009097/0028 Effective date: 19980414 |