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HUSQVARNA AB

HUSQVARNA AB Patent applications
Patent application numberTitlePublished
20120118278CUTTING MACHINE WITH A LIQUID LUBRICATION DELIVERY SYSTEM HAVING A CONTROLLED LIQUID LEVEL - A cutting machine having a liquid lubrication delivery system. The machine includes a work-piece platform having an upper surface for supporting a work-piece thereupon. The work-piece platform can further include a main channel defining a recess in the upper surface. At least one liquid lubrication inlet for discharging liquid into the main channel can also be present on the work-piece platform. The at least one liquid lubrication inlet can be a plurality of liquid lubrication inlets.05-17-2012
20120117809CHAINSAW ARRANGEMENT - A chainsaw (05-17-2012
20120102766CHAINSAW ARRANGEMENT - A chainsaw, comprising: a guide bar, a cutting chain and a driving unit arranged to drive the cutting chain around the guide bar. The guide bar defines a first longitudinal axis extending along a centre of the guide bar. The chainsaw further comprising a handle section for carrying and operating the chainsaw, wherein the handle section includes a control portion disposed on the upper side of the chainsaw. The control portion in turn includes a throttle lever for controlling the speed of the driving unit and the control portion has a left and a right side. The control portion defines a second longitudinal axis substantially extending along an upper side of at least a part of the control portion. An angle, A, between the first and the second longitudinal axes is between 14° and 45°.05-03-2012
20120102765CHAINSAW ARRANGEMENT - A chainsaw, comprising: a guide bar, a cutting chain and a driving unit arranged to drive the cutting chain around the guide bar. The guide bar defines a first longitudinal axis extending along a centre of the guide bar. The chainsaw further comprising a handle section for carrying and operating the chainsaw, wherein the handle section includes a control portion disposed on the upper side of the chainsaw. The control portion in turn includes a throttle lever for controlling the speed of the driving unit and the control portion has a left and a right side. The control portion defines a second longitudinal axis substantially extending along an upper side of at least a part of the control portion. An angle, A, between the first and the second longitudinal axes is between 14° and 45.05-03-2012
20120102755Electrical Two-Way Rotary Trimmer - An electrical trimmer (05-03-2012
20120055687BATTERY OPERATED PORTABLE TOOLS - A battery-operated portable tool (03-08-2012
20120055034CHAINSAW ARRANGEMENT - A chainsaw (03-08-2012
20120031635BATTERY-POWERED PORTABLE TOOLS - A battery-powered portable tool, such as a chainsaw, hedge trimmer or handheld drill, comprising: a housing (02-09-2012
20120024275TWO-STROKE INTERNAL COMBUSTION ENGINE - A two stroke crank case scavenged two-stroke internal combustion engine, the engine including: a cylinder (02-02-2012
20120023761BATTERY-POWERED PORTABLE CUTTING TOOLS - A battery-powered portable cutting tool such as a chainsaw or hedge trimmer, comprising: a housing (02-02-2012
20110308831BATTERY POWERED TOOL AND BATTERY PACK FOR A BATTERY POWERED TOOL - A battery pack for powering a battery powered tool may include a housing, a plurality of cells and an electrical connection assembly. The housing may include a sidewall assembly. The sidewall assembly may be configured to correspond to respective sidewalls of a battery compartment defined at a portion of the battery powered tool to facilitate insertion of the battery pack into the battery compartment. The plurality of cells may be disposed within the housing and arranged adjacent to each other such that the sidewall assembly, which extends along a direction substantially parallel to a direction of insertion of the battery pack into the battery compartment, forms an enclosure around the plurality of cells on all sides substantially parallel to the direction of insertion. The plurality of cells may be electrically connected to each other to provide a combined output. The electrical connection assembly may be disposed at a portion of the sidewall assembly to communicate the combined output to a connector disposed at a corresponding sidewall of the battery compartment. The electrical connection assembly may be arranged to engage the connector responsive to movement of the battery pack in a direction substantially parallel to the direction of insertion of the battery pack into the battery compartment.12-22-2011
20110289786PORTABLE HAND-HELD POWER TOOL - A portable handheld power tool (12-01-2011
20110282519CONTROL SYSTEM FOR A REMOTE CONTROL WORK MACHINE - Control system for a remote-controlled working machine (11-17-2011
20110265334HANDGUARD FOR CHAINSAW - The invention relates to a chainsaw having a front hand guard (11-03-2011
20110247708PORTABLE WATER TANK ASSEMBLY FOR A DUST EMITTING CONSTRUCTION MACHINE - A portable water tank assembly for a dust emitting construction machine, such as a machine for cutting concrete, stone, ceramic materials and the like, said assembly comprising a water container (10-13-2011
20110240590CLOSURE ARRANGEMENT - The present invention relates to a closure arrangement on a tank (10-06-2011
20110095215FUEL SUPPLY UNIT - A fuel supply unit (04-28-2011
20110061246COASTING BRAKE ARRANGEMENT FOR A POWER TOOL - A chainsaw having a brake arrangement comprising: a kickback brake drum (03-17-2011
20110056716ELECTRIC SAW COMMUNICATION - The present invention relates to an electric saw (03-10-2011
20110005888SIZE AND WEIGHT SAVING CLUTCH DRUM OF A CENTRIFUGAL CLUTCH - The present invention provides a clutch drum (01-13-2011
20100307448LUBRICATION SYSTEM FOR A FOUR-STROKE ENGINE - A lubrication system for a four stroke engine including an oil pan for storing lubrication oil; a crankcase, wherein a crankshaft is disposed, which crankshaft has a balance weight and is coupled with a piston of a cylinder; a gear assembly room; a rocker-arm chamber; and a gas-oil separator for separating gas and oil from a mix of gas and oil; wherein the oil pan communicates with the crankcase by an oil suction passage, in which a first check valve is disposed; the crankcase communicates with the gear assembly room by a first oil delivery passage; the gear assembly room communicates with the rocker-arm chamber by a second oil delivery passage, and the gear assembly room communicates with the oil pan by a third oil delivery passage; the rocker-arm chamber communicates with the crankcase by a first oil return passage having a second check valve therein.12-09-2010
20100299944CUTTING OR SAWING MACHINE - A preferred embodiment of a hand-operated flush cutting machine (12-02-2010
20100252011IDLE SPEED CONTROL FOR A HANDHELD POWER TOOL - Method for controlling fuel metering in a carburetor or a low pressure injection system of an internal combustion engine when the engine is operating at idle speed, the method includes the steps of: 10-07-2010
20100180453CUTTING TROLLEY WITH A FRONT AND A REAR ATTACHMENT DEVICE - A cutting trolley (07-22-2010
20100140025RETARDING DEVICE FOR A HANDHELD CUTTING MACHINE - The present invention is related to a retarding device for a hand held cutting machine having a housing (06-10-2010
20100059000ARRANGEMENT RELATED TO A MOTOR-DRIVEN TOOL - An arrangement for cleaning of intake air for an air-cooled internal combustion engine of a motor-driven tool, such as a chain saw. The arrangement includes an air conductor surrounding a fan wheel arranged to propel intake air around an axis of the fan wheel. An inner wall of the air conductor is arranged for guiding air propelled by the fan wheel. An air nozzle for cleaning of intake air is arranged on the inner wall of the air conductor radially close to said fan wheel. The air nozzle serves as a passage way for providing cleaned intake air from the fan wheel to the engine of the motor-driven tool, wherein the air nozzle and the air conductor are manufactured in one piece.03-11-2010
20100011597METHOD FOR ADJUSTING THE AIR-FUEL RATION OF AN INTERNAL COMBUSTION ENGINE - Method for adjusting the air-fuel ratio of an internal combustion engine, in a fuel supply section thereof, such as a carburettor or a fuel-injection system, the fuel supply section having a control unit for adjusting the air-fuel ratio of the engine and the engine having an engine speed and an engine throttle ranging from zero throttle to full throttle. The method including: a) measuring the engine speed of the engine; b) comparing the engine speed to a first engine speed value; c) adjusting the air fuel ratio if the engine speed is lower than the first engine speed value; and d) repeating a) to c) until the engine speed is either greater than or equal to the first engine speed value.01-21-2010
20090145399METHOD FOR CONTROLLING A FUEL VALVE AND/OR AN AIR VALVE FOR AN INTERNAL COMBUSTION ENGINE - A method for controlling a valve of a crank case scavenged internal combustion engine includes determining a valve control sequence, wherein the valve is controlled in consecutive periods of revolutions each having a period length of at least ten revolutions, and controlling the valve according to the valve control sequence to adjust the ratio of fuel to air in a combustible mixture delivered to an engine combustion chamber. Determining the valve control sequence for each period includes providing a number of valve shut-off positions, wherein the number of valve shut-off positions corresponds to an amount of fuel or air to be supplied to the engine during the corresponding period, and determining which revolutions of the period that the valve is to be closed.06-11-2009
20090100684MOTOR DRIVEN TOOL SUCH AS A POLE HEDGE TRIMMER WITH A LOCKING MECHANISM FOR THE TURNABLE CUTTING UNIT - A motor driven tool such as a pole hedge trimmer, a pole saw or the like includes a drive unit (04-23-2009
20080302345A Crankcase Scavenged Two-Stroke Internal Combustion Engine Having an Additional Air Supply - A crankcase scavenged two-stroke internal combustion engine (12-11-2008
20080283302Water Collecting Device for Core Drilling Device - The invention relates to a water collecting device (11-20-2008

Patent applications by HUSQVARNA AB