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序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
181	Hand-Held Power Tool and Method for Operating a Heating Device of a Hand-Held Power Tool	US11836162	2007-08-09	US20080036429A1	2008-02-14	Heinrich Leufen; Rolf Walter; Fried Berkenkamp
A hand-held power tool has a drive motor driving a tool and a generator. One or more heating devices having one or more heating elements are provided. The generator supplies the one or more heating devices with energy. A control device controls a power supplied to the one or more heating elements as a function of at least one operating parameter of the drive motor.
182	Erickson super straightener	US11500623	2006-08-09	US20070266761A1	2007-11-22	Jeff Erickson; Mark dePape
This invention consists of a tool and a bending plate that provides a means of straightening woodcutting saw bars otherwise known as saw bars. The saw bars are used in the process of harvesting timber with machinery. The machinery would include Feller Bunchers or any Wood Processing Machine that uses a hydraulic, electric or gas driven wood cutting chain with a steel bar.The Erickson Super Straightener is a tool that consists of 3 main functional parts. There is a rotating head plate with an attached handle and the separate bending plate.In order to use the tool the bending plate must be secured by welding or bolting it to an adequate flat working surface. The best place to secure the bending plate would be on the machine it is intended to be used for.The tool is then used by slipping the ears of the bent saw bar through the stationary bending plate. The bar is then held securely in place by the bending plate. The rotating head of the tool is then slipped over the tip of the saw bar and positioned on the high side of the twist or bend anywhere along the length of the bar. By applying downward pressure to the handle the operator can remove any bend or twist the bar might have. This tool is cost effective and convenient.
183	CORDLESS OUTDOOR POWER TOOL SYSTEM	US11683179	2007-03-07	US20070240892A1	2007-10-18	Daniele Brotto; Karen Dilaura; Keith Moore; Francis NG; Christine Potter; Corey Robertson; William Robinson; James Watson; Mark Williams
A system of cordless outdoor power tools includes a plurality of hand-held cordless outdoor power tools, with each outdoor power tool including a housing and a motor assembly with a motor. The system may include and at least one battery pack removably attachable to one or more of the outdoor power tools. The at least one battery pack, when attached to a given tool, provides a nominal output voltage of approximately 28 volts or greater to the motor of the tool. One or more of the outdoor power tools with attached battery pack has a power output to weight ratio of 70 watts per pound (W/lb) or greater.
184	Sawing device and its safety system for precaution of a breaking saw chain	US10521048	2003-07-07	US20060107804A1	2006-05-25	Markku Annala
Method and safety device for a breaking saw chain, wherein the safety device comprises a protective wall positioned in the vicinity of the drive gear drawing the saw chain in such a manner that it is capable of receiving the movement of the tail of the broken saw chain and to guide said tail in a controlled manner with the rest of the saw chain into the desired direction, wherein at the same time the strong swinging movement of said tail is prevented, and said protective wall is fastened to movable members that are arranged to hold the protective wall in the correct location during sawing in relation to the saw chain whose incoming direction varies during the operation. In particular, the protective device is placed in a sawing apparatus comprising a frame part, a holder for a guide bar, means for driving the saw chain and for performing the sawing, as well as means for moving the protective wall in phase with the guide bar holder, wherein said means are preferably implemented by using the guide bar holder.
185	Tool case having scabbard with adjustable length	US10291368	2002-11-12	US07032749B2	2006-04-25	Tina A. Hochstetler; Jon T. Newsome
A chain saw case has an adjustable scabbard that telescopes to allow for different lengths of chain bar. The scabbard also has an opening along one side to allow visibility of the side of the chain saw bar and any markings, including branding, on the chain saw bar. The chain saw case is designed to be fabricated using injection-molding techniques. Because the scabbard collapses, and the injection molded case offers ample space not afforded in all existing blow molded chain saw cases, the scabbard can be placed inside the case during shipment reducing shipping cost and space required while in distribution.
186	Portable handheld work apparatus	US11065130	2005-02-24	US20050183270A1	2005-08-25	Roland Schmidt; Manfred Rabis; Antonio Fattorusso; Hans Nickel; Patrick Schlauch; Olaf Schmidt
A portable handheld work apparatus such as a motor-driven chain saw (1) includes a housing (2) wherein an internal combustion engine (10) and a carburetor (11) are mounted. A throttle lever (6) is provided which is pivotally journalled on a handle (3). The handle (3) is connected to the housing (2) via at least one antivibration element (33). A vibration gap (9) is configured between the handle (3) and the housing (2). A transmitting unit (13) is provided for transmitting the pivot movement of the throttle lever (6) to the carburetor (11). The transmitting unit includes a rigid transmitting element (17, 37) which bridges the vibration gap (9). A simple configuration and a substantial decoupling of the relative movement between the housing (2) and the handle (3) from the actuating movement of the carburetor is achieved in that the transmitting element (17, 37) is rotatably journalled and the pivot movement of the throttle lever (6) is transmitted as a rotation about a rotational axis (22) lying transverse to the vibration gap (9).
187	Apparatus for storing the chain of a chain saw	US10978908	2004-11-01	US20050139499A1	2005-06-30	John Flynn
An apparatus for storing a chain of a chain saw includes a lower element and an upper element. The lower element includes at least one pair of pegs for receiving a chain. At least one peg of the at least one pair of pegs is moveably mounted with respect to the lower element. The upper element is pivotally coupled to the lower element for movement between an upper position and a lower position.
188	Adjustable drive chain saw woodworking machine	US09562760	2000-05-02	US06834572B1	2004-12-28	Paul A. Richmond
A woodworking machine includes an adjustable table for holding a workpiece thereon and a drive chain saw spaced from the table and having cutting teeth on one edge and drive engaging chain guides adjacent an opposite edge. The drive engaging chain guides engage a drive wheel driven by a motor. A support plate is positioned above the table and has a plurality of slots therein for adjustably mounting a plurality of roller guide elements positioned to engage both sides of the drive chain saw. Each of the roller guide elements includes at least one groove in an outer periphery thereof and the drive chain saw includes circular chain guides which mate with the groove. Threaded pins are provided for adjusting the position of each of the roller guide elements to engage the drive chain saw whereby a portion of the drive chain saw is formed into an undulating shape to cut curved surfaces in the workpiece when the drive chain saw and the workpiece come into contact. The device further may include a plurality of profile cutting bits mounted on the drive chain saw at a position spaced inwardly from the cutting teeth. The cutting teeth are separated by guide pieces.
189	Chain saw safety system	US10390583	2003-03-17	US20040181951A1	2004-09-23	Edward R. Wittke
A system effectuates increased cutting device safety through rapid detection of abrupt motion of the device, and/or the proximity of the device cutting elements in relation to its operator. An adaptive signal processor receives signals from accelerometers (i.e. motion sensors) and/or proximity sensors, and adjusts an electro-mechanical interface with the cutting device drive and/or power mechanism. Sensors resident on the user may be spatially dispersed to protect multiple areas of potential interaction between device and operator. The adaptive signal processor receives and processes the sensor signals, determines motion and proximity measurements, compares the measurements to predetermined and set thresholds, and effectuates device interruption should thresholds be reached. The signal processor contains an adaptive signal processing algorithm which accounts for noise and invalid sensor measurements such as those made due to some external object physically disrupting proximity sensor-pair measurements.
190	Illumination means for a chainsaw	US10625400	2003-07-23	US20040125596A1	2004-07-01	Timothy Reed Brooks
An illumination means for a chainsaw is a light source generated for providing a focused beam at the bar and chain of a chainsaw. Illumination means is positioned at the front of the housing of a chainsaw. Illumination means may be integrally incorporated therein or placed onto the exterior of the housing, and may also include a pivotal shell for adjusting the projection of the light beam. Illumination means is operatively and electrically coupled to a switch that actuates generation of light.
191	Two-door chainsaw case with separate scabbard	US10002679	2001-10-24	US06659276B2	2003-12-09	Jeffrey S. Anderson; Patrick T. Jones; Ronald A. Zimmer; James M. Wiese
A chainsaw case for a chainsaw having a bar is provided. The case includes a base having a lower, a rear, and two end walls, one of the end walls having a slot therein. A front member is pivotally connected to the base and is pivotable from a closed position toward a position in which the front member is substantially coplanar with the lower wall. A top member is pivotally connected to the base about a pivot axis which is substantially parallel to the pivot axis of the front member, and is pivotable from a closed position toward a position in which the top member is substantially coplanar with the rear wall. The case also includes a scabbard for being applied to the bar of the chainsaw, the scabbard having an end portion adapted to be received within the slot when the chainsaw is disposed within the base.
192	Portable handheld work apparatus	US09971762	2001-10-09	US20020042997A1	2002-04-18	Klaus-Martin Uhl
The invention relates to a portable handheld work apparatus including an overhead branch cutter. The work apparatus has a drive motor (4) mounted at one end (2) of a carrier tube (3). A work tool (6) is held at the other end (5) of the carrying tube (3). The work tool (6) is driven via a shaft (7) mounted in the carrying tube (3). A variable work position of the portable handheld work apparatus is made possible by subdividing the carrying tube (3) into two sections (8, 9). The sections (8, 9) can be pivoted relative to each other (pivot angle 11) with respect to their longitudinal axes (52, 51) and are rotatable relative to each other (rotation angle 12) and are connected by a ball-and-socket joint (10). A device is provided for fixing the ball-and-socket joint (10) and permits the ball-and-socket joint (10) to be fixed in the desired position.
193	Chain saw for branch cutting	US09507656	2000-02-22	US06354006B1	2002-03-12	Franco Castelmani
A chain saw for cutting branches of up to 200 mm in diameter and above, including a main body, a self-priming pump, a joint, a positioning washer, a collar bracket, an oil sump, hook supports and a blade. It falls within the technical field of human requirements and within the application field of instrument and tool manufacturing. It will cut branches within arm's reach and if a telescopic extension is fitted it will cut branches at any desired height. It is easily operated and as a result of the ease with which the parts may be replaced it is easily maintained and therefore very reliable.
194	Hand-held working tool	US09360107	1999-07-23	US06314922B1	2001-11-13	Helmut Zimmermann; Werner Geyer; Jörg Schlossarczyk; Hans Nickel; Harald Schliemann; Gunter Stein; Peter Stücke; Bernhard Dürr; Axel Klimmek
A hand-held working tool has a housing and an internal combustion engine arranged in the housing and comprising a crankshaft and an air filter. A tool is driven by the crankshaft of the internal combustion engine. A fan housing is attached to the engine housing and has an air inlet. A fan wheel is arranged in the fan housing and is driven by the crankshaft of the internal combustion engine to supply cooling air, sucked in through the air inlet, to the internal combustion engine. The fan housing has a bottom extending radially to the crankshaft. The bottom and a side of the fan wheel facing the bottom define a chamber in the fan housing. The bottom has a combustion air outlet. A combustion air channel is connected to the combustion air outlet and to the air filter. The combustion air outlet is axially supplying combustion air from the chamber through the combustion air channel into the air filter of internal combustion engine. The fan housing has a channel wall having a bottom portion connected to the face of the bottom remote from the fan wheel and covering the bottom partially to form a double-walled bottom. The end face portion of the combustion air channel is defined by the bottom and the bottom portion of the channel wall. In an alternative embodiment the combustion air channel is provided in a hollow beam of a support that supports the drive unit of the working tool.
195	Hand-held work tool with a generator	US09439704	1999-11-12	US06232672B1	2001-05-15	Heinrich Leufen; Rolf Walter
A hand-held work tool has a housing with a carburetor heater and a grip heater. An internal combustion engine is mounted in the housing and has a crankshaft and an ignition system. The ignition system has a pole wheel with permanent magnets fastened sequentially at a periphery of the pole wheel in the circumferential direction. Charge armatures are mounted in the housing and close the magnetic circuit between neighboring permanent magnets. The charge armatures have legs and excitation coils mounted on the legs. Upon rotation of the pole wheel, the permanent magnets generate an electric current in the excitation coils, wherein a first set of excitation coils is combined to a first partial generator and connected to an electric circuit of the carburetor heater and a second set of the excitation coils is combined to a second partial generator and connected to an electric circuit of the grip heater such that the electric current is supplied respectively to the carburetor heater and the grip heater. The excitation coils of the first set are arranged in a row adjacent to one another in the circumferential direction. The excitation coils of the second set are arranged in a row adjacent to one another in the circumferential direction.
196	Start-assist device on a membrane carburetor	US418448	1995-04-07	US5560345A	1996-10-01	Werner Geyer; Thilo Barth; Peter Stucke; Horst Eckhardt; Harald Schliemann; Manfred Rabis; Jorg Schlossarczyk
The invention is directed to a start-assist device on a membrane carburetor of an internal combustion engine in a motor-driven chain saw which is to be started manually. The carburetor includes a control chamber delimited by a control membrane. The control chamber is supplied with fuel from a fuel tank via control valve. The control valve is opened by the control membrane when the underpressure builds up in the control chamber so that fuel flows in. This fuel is supplied to the air-inducting intake channel via an idle nozzle and a main nozzle. The fuel feed system further has an outlet for vapor bubbles or the like. A pump which is driven indirectly from the start operation is provided and has a suction connection connected to the outlet in order to ensure, with few start attempts, a reliable start of the engine independently of the temperature state of the engine and other influences.
197	Integrated dynamic air cleaner	US412149	1995-03-28	US5542380A	1996-08-06	J. Keith Chatten
An improved centrifugal air cleaning system including a fan, a fan volute defined, in part, by a curved outer wall and a base wall, and a deflector wall projecting from the base wall intermediate the fan and the outer wall. An air inlet port is formed in the base wall and is located between the deflector wall and the outer wall. The deflector wall includes a first wall portion and a second wall portion. The first wall portion has a curvature generally matching a curvature of the fan while the second wall portion diverges from the fan toward the outer wall. The first wall portion prevents radially projected particles from reaching the air inlet port while the second wall portion cooperates with the outer wall to define a restricted flow path downstream of the air inlet port that creates a relatively high pressure condition at the inlet port and injects substantially particle-free air into the carburetor.
198	Arrangement in an internal combustion engine	US245879	1994-05-19	US5429776A	1995-07-04	Dag Edlund
An arrangement in an internal combustion engine comprises a membrane carbureter (10) having a fuel chamber (12) provided with a movable membrane (11) cooperating with a valve (17) for controlling the fuel supply to said fuel chamber. The air inlet of the carbureter is connected to a filter housing (31) provided with an air filter (32) for cleaning the inlet air, and a pressure chamber (13) is disposed adjacent said membrane and connected to said filter housing to control the fuel supply in relation to the pressure drop across said air filter (32). According to the invention, the membrane (11) is arranged in parallel with a wall (33) of the filter housing, and said wall is disposed adjacent to the pressure chamber (13) and provided with an opening (34) via which said pressure chamber communicates with the interior of said filter housing.
199	Portable handheld work apparatus	US16078	1993-02-10	US5231956A	1993-08-03	Helmut Lux; Lothar Ulrich
The invention is directed to a portable handheld work apparatus including a motor-driven chain saw, cutoff machine and the like. The work apparatus includes a housing and an internal combustion engine mounted in the housing for driving a work tool. The housing defines a space from which said engine draws combustion air and a fan wheel is disposed in the housing for generating a cooling-air flow which leaves the fan wheel in a direction tangential to the periphery of the fan wheel for cooling the engine. The housing has a U-shaped channel for conducting the cooling-air flow. The U-shaped channel is disposed so as to face toward the fan wheel with the base wall thereof being disposed at a predetermined spacing from the periphery of the fan wheel. The U-shaped channel has a pass-through formed in the base wall at a pregiven spacing downstream from the fan wheel for passing a portion of the cooling-air flow to the space as combustion air for the engine. The pass-through defines a plane and a center axis perpendicular to the plane. The U-shaped channel is configured to impart a predetermined direction of flow to the cooling-air flow at the region of the pass-through and the center axis and the predetermined direction of flow conjointly define an angle .beta. having a value in a range of approximately 70.degree. to 180.degree..
200	Chain saw	US519210	1990-05-03	US5029561A	1991-07-09	Hiroaki Koga
A chain saw provided an internal combustion engine having a recoil-type starter. The chain saw has a step provided on the machine frame of the chain saw and adapted to be stepped down by at least a portion of the user's foot when the user operates the starter for starting the engine.

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