US3881452A - Method and apparatus for operating an engine-driven chain saw in an environment where ice may form in the carburetor of the engine - Google Patents
Method and apparatus for operating an engine-driven chain saw in an environment where ice may form in the carburetor of the engine Download PDFInfo
- Publication number
- US3881452A US3881452A US325346A US32534673A US3881452A US 3881452 A US3881452 A US 3881452A US 325346 A US325346 A US 325346A US 32534673 A US32534673 A US 32534673A US 3881452 A US3881452 A US 3881452A
- Authority
- US
- United States
- Prior art keywords
- ice
- chain saw
- carburetor
- engine
- gasoline
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 48
- 230000002401 inhibitory effect Effects 0.000 claims abstract description 39
- 230000001050 lubricating effect Effects 0.000 claims abstract description 23
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 21
- 238000002485 combustion reaction Methods 0.000 claims abstract description 18
- 239000003502 gasoline Substances 0.000 claims description 29
- 230000006698 induction Effects 0.000 claims description 29
- 239000010687 lubricating oil Substances 0.000 claims description 12
- 238000005461 lubrication Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 abstract description 18
- 239000012530 fluid Substances 0.000 abstract description 11
- 239000000126 substance Substances 0.000 abstract description 2
- 101000828805 Cowpox virus (strain Brighton Red) Serine proteinase inhibitor 2 Proteins 0.000 description 9
- 239000003921 oil Substances 0.000 description 7
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 description 6
- 239000013078 crystal Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229940051250 hexylene glycol Drugs 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- WKVZMKDXJFCMMD-UVWUDEKDSA-L (5ar,8ar,9r)-5-[[(2r,4ar,6r,7r,8r,8as)-7,8-dihydroxy-2-methyl-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-6-yl]oxy]-9-(4-hydroxy-3,5-dimethoxyphenyl)-5a,6,8a,9-tetrahydro-5h-[2]benzofuro[6,5-f][1,3]benzodioxol-8-one;azanide;n,3-bis(2-chloroethyl)-2-ox Chemical compound [NH2-].[NH2-].Cl[Pt+2]Cl.ClCCNP1(=O)OCCCN1CCCl.COC1=C(O)C(OC)=CC([C@@H]2C3=CC=4OCOC=4C=C3C(O[C@H]3[C@@H]([C@@H](O)[C@@H]4O[C@H](C)OC[C@H]4O3)O)[C@@H]3[C@@H]2C(OC3)=O)=C1 WKVZMKDXJFCMMD-UVWUDEKDSA-L 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001328813 Methles Species 0.000 description 1
- 241001417524 Pomacanthidae Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 235000002020 sage Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B17/00—Chain saws; Equipment therefor
-
- 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
- F02M17/00—Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of preceding main groups F02M1/00 - F02M15/00
- F02M17/50—Carburettors having means for combating ice-formation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
- F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
Definitions
- ABSTRACT U.S. Cl. An improved chain saw and method of perating a In. CL t chain aw in a Id environment wherg ice 1 Field Search 193 A may form in the carburetor of the chain saw engine is 44/53 disclosed.
- An ice-inhibiting substance is mixed with the fuel and lubricating fluid and introduced into an 1 Rem'mces cued interior portion of the carburetor in conjunction with UNITED STATES PATENTS the combustible mixture of fuel, lubricating fluid.
- the ice inhibiting means may be pre- 2,876,750 3/1959 Carr 123/1 A mixed with the lubricating fluid.
- This invention relates generally to a novel method and apparatus for operating a chain saw in a relatively cold environment. More particularly. this invention provides a chain saw including an ice inhibitor which substantially inhibits the formation of ice in the internal portion of a carburetor of the two-cycle engine of the chain saw to substantially prevent carburetor blockage during operation of the engine in cold. humid atmmospheric conditions.
- a lubricating oil-gasoline motor fuel mixture which not only functions as a fuel. but also provides lubricatin in a highly diluted form without the sump-type or crankcase lubrication system. is utilized.
- Many chain saw operators use special chain saw lubricating oil for this purpose.
- manufacturers may provide chain saw lubricating oil in containerscorresponding to the volume of the fuel reservoir to facilitate mixing the proper ratio of gasoline and lubricant.
- a variety of methods and apparatus presently i for heating the carburetor of a chain saw engine to prove operation under relatively cold weather co tions For example. a closed circuit. radiatomypc ings under such cold. humid conditionsmay be caused Y by a formation of ice in the carburetor. The accumulation of this ice produces a blockage in the carburetor. most generally in the vicinity of the throttle. and may seriously interfere with the production of a fuel-air mixture suitable for combustion in-the cylinder of the engine. it is known that gasoline evaporating in the carburetor has a sufficient refrigerating effect to condense and freeze the moisture present in air even in temperaturessomewhat above the freezing temperature. As a result.
- ice particles may deposit along the interiorof the carburetor. and as noted above. partially or completely block the air passage between the carburetor wall and the carburetor throttle valve with a resulting stalling. This stalling may be particularly pronounced when the chain saw engine is idling.
- a general object of the present it tion to provide a method and apparatus for inhil the formation-of .ice in the caiburetor of 'a two-l chain saw enginewhich minimizes or reduces the lems and limitations previously existing in the prio his a more particular object to provide a methl operation of a two-cycle chain saw engine whic eludes the use of an ice inhibitor'to substantially vent the formmation of ice inside a carburetor of a cycle chain saw engine.
- Another object of the present invention is to pr a method of inhibiting the formation of ice in th buretor of a two cycle chain saw engine which or may be employed without requiring modification conventional chain saw structure.
- An additional object of the present invention provide a method which minimizes trouble to a saw operator whereby an ice inhibitor may be cutedinside the carburetor of an engine for a saw or. say. a snowmobile during operation of ti gine bymeans of an additive premixed with the eating oil. for the engine. which ice inhibitor su tially prevents the formation of ice in the carbun an amount sufficient to induce stalling of the en
- a method and apparatus for inhibiting the for: of ice in a two-cycle chain saw engine includes a chain saw having a frame. a cut connected to the frame. a cutting chain trained i the outside of the cutter bar.
- a rotary pis gine could be used in the practice of this lilVClillt internal combustion engine has a carburetor in an interior portion comprising an induction passage. :1 throttle valve. a venturi throat which is defined by a portion of the induction passage and the throttle valve. and a choke plate.
- An ice inhibiting means is mixed with the fuel and lubricating fluid and introduced into the interior portion of the carburetor in which ice may form in conjunction with the combustible mixture of fuel. lubricating fluid and air. That is to say. during the operation of the engine.
- the ice inhibiting means is carried through the carburetor with the combustible mixture. As the mixture passes through thecarburetor. ice is substantially prevented from forming within the interior of the carburetor. By introducing the ice inhibitor into the interior of the carburetor in such a manner to prevent the ice from forming. blockage of the carburetor from ice deposits is substantially prevented.
- An ice inhibiting means intended to accomplish at least some of the foregoing results may include. but is not limited to. hexylene glycol (i.e.. 4-methyI-2.4-pentanedioll.
- FIG. I is a partial sectional view of a chain saw according to the present invention:
- FIG. 2 is a schematic sectional view of the carburetor of the chain saw of FIG. I wherein an ice inhibiting means has been introduced;
- FIG. 3 is a schematic sectional view of a carburetor in the prior art wherein deposits of ice have accumulated to block flow through the carburetor.
- FIG. I there is illustrated a chain saw having a guide bar I2 supporting a cutter chain I4.
- a handle 16 provides a triggertype.
- throttle lever 18 provides a triggertype.
- a two-cycle. internal combustion engine 20 serves to impart power to the cutter chain I4 so as to cause the chain 14 to traverse or train around the periphery of the guide bar 12.
- a drive connection interposed between the engine and the cutter chain may include a conventional. pull-type starter. Alternatively. an electrical self-starting system (not shown) may be provided.
- the chain saw may further include a fuel tank 22. and an engine mounting bracket 24.
- the bracket may comprise an integral portion of a casting or may be a molded portion ofa fuel tank 25.
- An upper portion 26 of the chain saw 10 comprises an enclosure 28.
- the enclosure 28 provides a carburetor housing cavity 30. the lower end portions of which are defined by enclosure walls 34.
- a conventional carburetor 36 is positioned in the cavity and is disposed in air flow transmitting communication with an inlet passage 38 in a now wellknown manner.
- the carburetor 36 is secured to the engine 20 with the induction passage 44 connected to an engine inlet 56 which communicates with the crankcase of the engine 20.
- the upper portion of the cavity 30 may be closed by a preformed. foraminous air filter 46.
- FIG. 2 there is schematically depicted the carburetor 36 of the engine 20 illustrated in the chain saw I0 of FIG. I.
- the carburetor 36 includes a carburetor body 48. having an induction passage 44 therethrough which includes an air inlet portion 50 and a mixture outlet portion 52 with a venturi 54 interposed therebetween and connecting the passage portions 50.52.
- an induction passage 44 therethrough which includes an air inlet portion 50 and a mixture outlet portion 52 with a venturi 54 interposed therebetween and connecting the passage portions 50.52.
- Means for providing a suitably rich mixture for cold starting and warm up is provided by a butterfly type of choke plate or valve 64 which is mounted on the shaft 66. Means are also provided by idle fuel jet 65 for sup plying fuel to the carburetor when the engine is idling.
- the choke valve 64 is disposed in the air inlet portion 50 of the induction passage 44 and may be of the same diameter as the throttle valve 60. Any suitable wellknown means may be used for rotating the choke valve shaft 66 so that the choke valve will be moved to a closed or open or intermediate position.
- carburetor icing has continued to be a problem in the operation of chain saws utilizing twocycle internal combustion engines where the chain saw is operated in a relatively cold and humid environment.
- ice 67 may accumulate within the interior portion of the carburetor and particularly may accumulate on the throttle plate 60 as shown in FIG. 3.
- Many icing problems occur when the throttle plate 60 is in or near the closed or idle position. Under these conditions. little. if any. fuel is discharged by the main jet (not shown) of the carburetor.
- the present invention functions to inhibit ice formation in the internal portion of the carburetor I0 and thereby substantially prevents ice crystals from accumulating on the induction passage surfaces to form a blockage.
- ice will generally form on edges 68 of the throttle plate 60 and can spread progressively across the plate face 70. Simultaneously. ice may accumulate along the walls of the induction passage 44. especially while the engine is idling. when an increased fluid flow around the throttle may enhance the evaporation of gasoline and. hence. may produce an increased refrigerating effect. Without the use of anti-icing devices. ice formation may accumulate both on the throttle plate 60 and along the side walls of the carburetor in such a manner as to restrict the flow of combustible mixture. Such a restriction may result in engine stalling or rough operation. and the chain saw will often fail to perform until the blockage is removed.
- the ice inhibitor may lower the freezing point of water in the internal portions of the carburetor to a temperature below that which would ordinarily occur in the carburetor of a two-cycle chain saw engine operating in a cold. humid environment.
- the ice inhibitor may provide a film on the internal portions of the carburetor as it passes in contact therewith preventing an adhesion of ice crystals thereon.
- a two-cycle chainsaw engine according to the present invention has a substantially lower tendency towards formation of ice within the interior portions of the carburetor and a correspondingly lessened tendency towards engine stalling under conditions in which ice may form.
- While ice crystals may not be absolutely prevented from forming in the carburetor. the present invention prevents any ice crystals which may form from accumulating in a manner which will restrict the flow of fluid through the carburetor body. As indicated in FIG. 2. occasional ice particles 72 may still form in the induction passage 44. However. the effect of the ice inhibiting means is sufficient to prevent a blockage or to otherwise interfere with the operation of the chain saw. Normally. the small particles of ice which may form notwithstanding the presence of the ice inhibiting means simply pass into the crankcase of the engine where they are almost instantaneously vaporized because of the relatively high temperatures therein.
- an ice inhibiting means is introduced into the carburetor by means of the fuel supply system.
- the ice inhibiting means is mixed with the fuel-lubricating oil mixture of the twocycle chain saw engine in an amount sufficient to in-' hibit the formation of ice within the carburetor of the engine without. however. appreciably adversely affecting the combustibility or volatility of the mixture to be ignited in the engine cylinder which amount. in the case of hexylene glycol as the ice inhibiting means. may be from about (M to 0.2 1 by .volume of the fuel.
- the ice inhibiting means preferably is premixed with the lubricating oil (which premix is thereafter mixed with gasoline to provide the combustible mixture which is exploded in the engine cylinder) to facilitate mixing the correct proportionof ice inhibiting means.
- concentration of inhibitor in the oil may depend also upon the ratio of oil to gasoline recommended by the manufacturer of the lubricant. ln the case of hexylene glycol used with oil intended to be mixed in the proportions of 40:1 1 volume of oil to 40 volumes of gasoline). the concentration of inhibitor in the oil will range from about 4 to 8'4.
- the present invention eliminates a "Cl for structurally complex heating apparatus to increa: the temperature of the carburetor walls or of the intai air to the carburetor as well as the need for an exteril heater or for pre operation modifications which to: increase the cost and complexity of the chain saw c gine.
- the ice inhibitor of the present invention may 1 used when weather or temperature conditions so r quire it and may otherwise not be used. Hence. the is provided a maximum of flexibility of operation wi a minimum of complexity and cost.
- the ice inhil tor may be introduced into the fuel system of a cha saw engine by means of the lubricating oil. This assur that the proper proportion of ice inhibitor is used to i hibit icing while. at the same time. there is an assuran that the fuel volatility is not interfered with.
- Such an a rangement permits improved operation of a chain s: in a cold environment. and. in commercial situatio such as logging operations. may substantially increa the efficiency of chain saw use.
- chain saw engi 45 a cutter chain drivenly engaged with said chain 1 engine
- reservoir means connected to said chain saw enr and operable to contain a combustible lubrica so oil-gasoline mixture for transmittal to a carbon means;
- carburetor means for transmitting a volatile mix of air and said lubricating oil-gasoline mix therethrough for passage to a combustion chan of said chain saw engine;
- said carburetor means having an interior portior eluding aninduction passage
- said method comprising:
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Description
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US325346A US3881452A (en) | 1973-01-22 | 1973-01-22 | Method and apparatus for operating an engine-driven chain saw in an environment where ice may form in the carburetor of the engine |
CA190,434.A CA1016031A (en) | 1973-01-22 | 1974-01-17 | Method and apparatus for operating an engine-driven chain saw in an environment where ice may form in the carburetor of the engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US325346A US3881452A (en) | 1973-01-22 | 1973-01-22 | Method and apparatus for operating an engine-driven chain saw in an environment where ice may form in the carburetor of the engine |
Publications (1)
Publication Number | Publication Date |
---|---|
US3881452A true US3881452A (en) | 1975-05-06 |
Family
ID=23267504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US325346A Expired - Lifetime US3881452A (en) | 1973-01-22 | 1973-01-22 | Method and apparatus for operating an engine-driven chain saw in an environment where ice may form in the carburetor of the engine |
Country Status (2)
Country | Link |
---|---|
US (1) | US3881452A (en) |
CA (1) | CA1016031A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4727651A (en) * | 1985-01-08 | 1988-03-01 | Komatsu Zenoah Co. | Chain saw |
US6427364B1 (en) | 2000-08-07 | 2002-08-06 | Murray, Inc. | Arrangement for heating air supplied to a carburetor of a snow thrower engine |
US20050016474A1 (en) * | 2003-04-08 | 2005-01-27 | Dopke Russell J. | Intake air and carburetor heating arrangement for V-twin engines |
US20060021592A1 (en) * | 2004-07-29 | 2006-02-02 | Ryczek Stephen J | Heater box for an engine |
US20060118069A1 (en) * | 2004-12-06 | 2006-06-08 | Snyder Dale D | Carburetor and intake air heating arrangements for V-twin engines |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2807526A (en) * | 1950-10-04 | 1957-09-24 | Standard Oil Co | Additive for motor fuels and fuel compositions containing the same |
US2843463A (en) * | 1955-09-12 | 1958-07-15 | Gulf Research Development Co | Non-stalling gasoline fuel compositions |
US2844448A (en) * | 1955-12-23 | 1958-07-22 | Texas Co | Fuels containing a deposit-control additive |
US2876750A (en) * | 1954-01-21 | 1959-03-10 | Phillips Petroleum Co | Fuel containing anti-icing additives |
US2883276A (en) * | 1954-01-21 | 1959-04-21 | Phillips Petroleum Co | Fuel containing anti-icing additives |
US2896593A (en) * | 1955-08-08 | 1959-07-28 | Lawrence E Riemenschneider | Method for operating two-cycle engines |
US3067138A (en) * | 1957-10-10 | 1962-12-04 | Exxon Research Engineering Co | Fuel and lubricating oil compositions |
US3230057A (en) * | 1961-07-31 | 1966-01-18 | Standard Oil Co | Addition agent and two-cycle engine oil |
US3337459A (en) * | 1965-06-04 | 1967-08-22 | Shell Oil Co | 2-stroke lubricant |
US3372679A (en) * | 1966-04-27 | 1968-03-12 | Remington Arms Co Inc | Fuel tank venting system |
US3498280A (en) * | 1968-07-15 | 1970-03-03 | Mcculloch Corp | Chain saw with carburetor heater |
-
1973
- 1973-01-22 US US325346A patent/US3881452A/en not_active Expired - Lifetime
-
1974
- 1974-01-17 CA CA190,434.A patent/CA1016031A/en not_active Expired
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2807526A (en) * | 1950-10-04 | 1957-09-24 | Standard Oil Co | Additive for motor fuels and fuel compositions containing the same |
US2876750A (en) * | 1954-01-21 | 1959-03-10 | Phillips Petroleum Co | Fuel containing anti-icing additives |
US2883276A (en) * | 1954-01-21 | 1959-04-21 | Phillips Petroleum Co | Fuel containing anti-icing additives |
US2896593A (en) * | 1955-08-08 | 1959-07-28 | Lawrence E Riemenschneider | Method for operating two-cycle engines |
US2843463A (en) * | 1955-09-12 | 1958-07-15 | Gulf Research Development Co | Non-stalling gasoline fuel compositions |
US2844448A (en) * | 1955-12-23 | 1958-07-22 | Texas Co | Fuels containing a deposit-control additive |
US3067138A (en) * | 1957-10-10 | 1962-12-04 | Exxon Research Engineering Co | Fuel and lubricating oil compositions |
US3230057A (en) * | 1961-07-31 | 1966-01-18 | Standard Oil Co | Addition agent and two-cycle engine oil |
US3337459A (en) * | 1965-06-04 | 1967-08-22 | Shell Oil Co | 2-stroke lubricant |
US3372679A (en) * | 1966-04-27 | 1968-03-12 | Remington Arms Co Inc | Fuel tank venting system |
US3498280A (en) * | 1968-07-15 | 1970-03-03 | Mcculloch Corp | Chain saw with carburetor heater |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4727651A (en) * | 1985-01-08 | 1988-03-01 | Komatsu Zenoah Co. | Chain saw |
US6427364B1 (en) | 2000-08-07 | 2002-08-06 | Murray, Inc. | Arrangement for heating air supplied to a carburetor of a snow thrower engine |
US20050016474A1 (en) * | 2003-04-08 | 2005-01-27 | Dopke Russell J. | Intake air and carburetor heating arrangement for V-twin engines |
US20060243225A1 (en) * | 2003-04-08 | 2006-11-02 | Tecumseh Products Company | Intake air and carburetor heating arrangements for v-twin engines |
US7284508B2 (en) | 2003-04-08 | 2007-10-23 | Tecumseh Products Company | Intake air and carburetor heating arrangements for V-twin engines |
US20080035124A1 (en) * | 2003-04-08 | 2008-02-14 | Tecumseh Products Company | Intake air and carburetor heating arrangement for v-twin engines |
US20080296790A1 (en) * | 2003-04-08 | 2008-12-04 | Tecumseh Products Company | Intake air and carburetor heating arrangement for v-twin engines |
US7475657B2 (en) | 2003-04-08 | 2009-01-13 | Tecumseh Power Company | Intake air and carburetor heating arrangement for V-twin engines |
US7757674B2 (en) | 2003-04-08 | 2010-07-20 | Certified Parts Corporation | Intake air and carburetor heating arrangement for v-twin engines |
US20060021592A1 (en) * | 2004-07-29 | 2006-02-02 | Ryczek Stephen J | Heater box for an engine |
US20060118069A1 (en) * | 2004-12-06 | 2006-06-08 | Snyder Dale D | Carburetor and intake air heating arrangements for V-twin engines |
Also Published As
Publication number | Publication date |
---|---|
CA1016031A (en) | 1977-08-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MCCULLOCH CORPORATION A MD CORP. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BLACK & DECKER INC., A DE CORP.;REEL/FRAME:004134/0336 Effective date: 19830505 |
|
AS | Assignment |
Owner name: CITICORP INDUSTRIAL CREDIT, INC., 450 MAMARONECK A Free format text: MORTGAGE;ASSIGNORS:MC CULLOCH CORPORATION;MC CULLOCH OVERSEAS N.V.;REEL/FRAME:004158/0190 Effective date: 19830331 Owner name: CITICORP INDUSTRIAL CREDIT, INC., NEW YORK Free format text: MORTGAGE;ASSIGNORS:MC CULLOCH CORPORATION;MC CULLOCH OVERSEAS N.V.;REEL/FRAME:004158/0190 Effective date: 19830331 |
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AS | Assignment |
Owner name: MCCULLOCH CORPORATION, A CORP. OF MD. Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CITICORP NORTH AMERICA, INC., FORMERLY KNOWN AS CITICORP INDUSTRIAL CREDIT, INC.;REEL/FRAME:005365/0004 Effective date: 19900530 Owner name: FIRST UNION NATIONAL BANK OF NORTH CAROLINA ONE F Free format text: SECURITY INTEREST;ASSIGNOR:MCCULLOCH CORPORATION;REEL/FRAME:005337/0736 Effective date: 19900530 |