Patents by Inventor Tetsuzo Fujikawa
Tetsuzo Fujikawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5165485Abstract: An edger having a main frame, at least one front wheel fastened in the front portion of the main frame, two rear wheels fastened in the rear portion of the main frame, a rotary blade disposed in the front portion of either side of the main frame and capable of conducting edging, an engine mounted on the main frame and a driving device for operating the rotary blade with the engine, the edger comprising: a resin cover fastened to a circular flange on the rotary-blade supporting shaft for covering a portion of the rotary blade. A structure for fitting the rotary blade cover includes a thin metal plate having an outer diameter larger than the flange, and fastening members for clamping the inner portion of the cover between the flange and the thin metal plate. Bolt assemblies are provided for fastening the thin metal plate and the cover together at a position outside the flange.Type: GrantFiled: September 27, 1991Date of Patent: November 24, 1992Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tetsuzo Fujikawa, Makizo Hirata, Shigeharu Ohama, Michio Nishimura
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Patent number: 5139091Abstract: An edger having a main frame, at least one front wheel fastened in the front portion of the main frame, two rear wheels fastened in the rear portion of the main frame, a rotary blade disposed in the front portion of either side of the main frame and capable of conducting edging, an engine mounted on the main frame and a driving device for operating the rotary blade with the engine, the edger comprising:an operating lever assembly including a first and second lever for controlling the operating position of the rotary blade. The first lever includes a portion to be gripped during operation of the edger, and the second lever includes a position setting mechanism. Both levers are operatively connected together and control the rotary blade via a connection device.Type: GrantFiled: May 14, 1990Date of Patent: August 18, 1992Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tetsuzo Fujikawa, Makizo Hirata, Shigeharu Ohama, Michio Nishimura
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Patent number: 5119879Abstract: An edger having a main frame, at least one front wheel fastened in the front portion of the main frame, two rear wheels fastened in the rear portion of the main fame, a rotary blade disposed in the front portion of either side of the main frame and capable of conducting edging, an engine mounted on the main frame and a driving device for operating the rotary blade with the engine, the edger comprising: a supporting arm for supporting the rear wheel positioned opposite to the rotary blade in such a manner that the position of the rear wheel positioned opposite to the rotary blade can be vertically adjusted with respect to the main frame; and a positioning mechanism for positioning the vertical position of the rear wheel disposed between the main frame and the supporting arm.Type: GrantFiled: September 27, 1991Date of Patent: June 9, 1992Assignee: Kawasaki Jukigyo Kabushiki KaishaInventors: Tetsuzo Fujikawa, Makizo Hirata, Shigeharu Ohama
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Patent number: 4984417Abstract: The present invention relates to an edger with a belt braking device, including a belt driving device and a cutter blade, which are arranged at the side of an edger vehicle. A bearing housing portion of the cutter blade is provided for forward and rearward movement, a belt cover for covering the whole driving belt is fixed to the edger vehicle, and a belt braking device is arranged between the front end of the belt cover and the front driven pulley, whereby performing ON-OFF operation of a clutch and engagement/ disengagement of a brake simultaneously is enabled. In this way, the fixed belt cover can be compact and the operation for changing of working conditions can be simplified.Type: GrantFiled: September 8, 1989Date of Patent: January 15, 1991Assignee: Deere & CompanyInventors: Stephen A. Braun, Michael J. O'Neill, Roger W. Curry, James R. Titze, Donald E. Niosi, Tetsuzo Fujikawa, Makizo Hirata, Michio Nishimura
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Patent number: 4962631Abstract: The present invention provides an edger wherein a cutter device is arranged on one side of an edger frame, the position of a front wheel is adjustable, the position of one of the rear wheels situated on the other side of the edger frame is also adjustable, and a mechanism for changing the position of the front wheel as well as changing the position of the rear wheel is performed by a single control lever at the operator's station. With this arrangement, the adjustment of the depth of the cutter and the adjustment for maintaining the edger in a horizontal condition when the edger is driven on a curbstone can be easily effected by the operator.Type: GrantFiled: September 7, 1989Date of Patent: October 16, 1990Assignee: Deere & CompanyInventors: Stephen A. Braun, Michael J. O'Neill, Roger W. Curry, James R. Titze, Donald E. Niosi, Tetsuzo Fujikawa, Makizo Hirata, Michio Nishimura
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Patent number: 4935689Abstract: A vehicle mounted engine generator system is disclosed for supplying electricity to external electrical appliances and equipment used inside a camping car or outdoors in the camping site, which comprises a secondary water-cooled internal combustion engine of relatively small size and an engine generator electrically connected to the engine. The secondary engine has its cooling jacket connected to a cooling line supplying it with cooling water for engine cooling. Also, the cooling line is connected to a radiator connected to the main internal combustion engine of water-cooled type so that the heated cooling water through the secondary engine is cooled by the same radiator as for the main engine. Also, the secondary engine is electrically connected to the battery for the main engine in such a manner that the battery can be recharged from the secondary engine as well.Type: GrantFiled: April 18, 1988Date of Patent: June 19, 1990Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tetsuzo Fujikawa, Yoichi Yamaguchi, Masao Shirakawa
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Patent number: 4932244Abstract: A display and control for use with an engine-equipped machine apparatus comprising a computer adapted to receive operating information from the apparatus, a memory connected to the computer and operable to store reference values of the operating information, a display connected to the computer for displaying in human readable form a selected operating information and the reference value associated therewith, a control connected to the computer for changing the operating information and the reference value associated therewith to be shown by the display, and an adjustment connected to the computer and the memory for varying the reference values.Type: GrantFiled: March 7, 1989Date of Patent: June 12, 1990Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Yoichi Yamaguchi, Tetsuzo Fujikawa, Akira Takahashi
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Patent number: 4917201Abstract: A motor vehicle having an air exhaust duct interposed between a radiator and an engine, the air exhaust duct being operative to guide cooling air that has cooled the radiator and became warm to flow in a direction in which the cooling air flows away from the engine without coming into contact therewith.Type: GrantFiled: October 19, 1987Date of Patent: April 17, 1990Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tetsuzo Fujikawa, Shinichi Tamba
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Patent number: 4889089Abstract: An improved work vehicle is disclosed in which a vertical shaft V-type engine having vertically supported crankshaft with the pair of right and left cylinders being arranged in V-shape is housed inside the front bonnet that is forwardly downwardly inclined at the top. The work vehicle, while having no less excellent performance in terms of power output, noise, and vibration, provides more increased operability and a wider range of forward visibility than conventional horizontal opposed type engine vehicles.Type: GrantFiled: July 1, 1988Date of Patent: December 26, 1989Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tetsuzo Fujikawa, Makizo Hirata, Shinichi Tamba
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Patent number: 4862981Abstract: An engine and power units employing the engine are provided which include a crankshaft oriented vertically and operatively connected to the engine, a liquid-cooled radiator arranged above the engine substantially perpendicular to the crankshaft, and a cooling fan interposed between the engine and the radiator and operatively connected to the crankshaft. The engines and power units may be employed in motor vehicles and other equipment such as electrical generators.Type: GrantFiled: July 8, 1987Date of Patent: September 5, 1989Assignees: Kawasaki Jukogyo Kabushiki Kaisha, Deere & CompanyInventors: Tetsuzo Fujikawa, Keisuke Tomonaga, Shinichi Tamba, Hitomi Miyake
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Patent number: 4798082Abstract: An engine-equipped apparatus including a control-display device which contains computing circuits into which is fed such data as the AC amperage data from an apparatus having an AC generator, and devices for displaying the data converted by these computing circuits. The control-display device is provided with a connection location capable of being freely connected to and disconnected from the main body of the apparatus through the use of a cable and multi-pin plug and socket.Type: GrantFiled: September 25, 1987Date of Patent: January 17, 1989Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tetsuzo Fujikawa, Yoichi Yamaguchi, Akira Takahashi
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Patent number: 4762094Abstract: A valve gear adapted for a four-cycle engine. Provided are a groove having such a shape folding around a crank shaft with an intersection as to return back to a starting point in two turns, a cam formed on top faces of both banks of aforesaid groove, a tappet arm projecting sideways from a tappet and elastically engaged with aforesaid cam, and a slider supported by aforesaid tappet arm and slidably fitted into aforesaid groove, and aforesaid tappet arm is guided by aforesaid slider to be given a lift by aforesaid cam provided on the outer circumference of the crank shaft.Type: GrantFiled: August 6, 1987Date of Patent: August 9, 1988Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tetsuzo Fujikawa, Makizo Hirata, Shinichi Tamba, Yoshiro Yamane
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Patent number: 4748945Abstract: Disclosed is a valve gear for use in a four-cycle engine which eliminates the necessity of providing a cam shaft. In the valve gear, a guide or guides, each of which is shaped like a closed curve making two rounds of a crank shaft with one intersection on the way, are provided. An air-intake valve and/or exhaust valve are controlled in accordance with the movement of a slider member sliding along the guide or guides.Type: GrantFiled: May 12, 1987Date of Patent: June 7, 1988Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tetsuzo Fujikawa, Makizo Hirata, Shinichi Tamba
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Patent number: 4736717Abstract: A valve gear for a four-cycle engine having an overhung crankshaft connecting with an output shaft, wherein a guide portion having such a shape folding the output shaft as to return back to a starting point in two turns, is formed on the output shaft, and an interlocking mechanism guided by the guide portion is provided to open the valves for the four-cycle engine. It is preferable that the guide portion is formed as cam face displacing the interlocking mechanism. The guide portion can be formed on a block other than the output shaft for easy machining and also for adjustable valve timing.Type: GrantFiled: April 4, 1986Date of Patent: April 12, 1988Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tetsuzo Fujikawa, Toshiyuki Takada, Shinichi Tamba
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Patent number: 4722306Abstract: A valve gear adapted for the four-cycle engine comprises guide portions(s) which is formed on the end surface(s) of crankweb(s) of a crankshaft, and has such a shape folding around the crankshaft with an intersection as to return back to a starting point in two turns; and two interlocking mechanisms provided between the guide portion(s) and the intake and exhaust valves in the engine to open the valves by being guided by the guide portion(s).Type: GrantFiled: May 19, 1986Date of Patent: February 2, 1988Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tetsuzo Fujikawa, Makizo Hirata, Shinichi Tamba, Noriyuki Ueki
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Patent number: 4716861Abstract: A 4-cycle engine including a crankshaft connected to a piston and supported at opposite ends by a crankcase for rotation. The crankshaft is formed at one of its two output shaft sections with a groove extending peripherally along the outer peripheral surface of one output shaft section substantially in the form of a endless loop having a cross point. A plurality of followers engaged in the groove have their movements transmitted, through respective linkages, to an exhaust valve and a suction valve respectively. A governor device is located at the other output shaft section and operative to actuate an engine rpm. controller depending on the speed of rotation of the crankshaft.Type: GrantFiled: May 1, 1986Date of Patent: January 5, 1988Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tetsuzo Fujikawa, Shinichi Tamba, Noriyuki Ueki
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Patent number: 4697555Abstract: A valve gear adapted for a four-cycle engine having a guide portion formed on the outer surface of an output shaft connected to a crankshaft, and of such a shape folding around the output shaft as to return back to a starting point in two turns, and having interlocking mechanisms provided with portions engaging with the guide portion and moved by the rotation of the crankshaft to open valves. The guide portion, only one in number, is provided on the output shaft connected to the crankshaft, and the interlocking mechanisms for driving intake and exhaust valves are disposed substantially opposite to each other across the output shaft as to engage with aforesaid single guide portion.Type: GrantFiled: April 4, 1986Date of Patent: October 6, 1987Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tetsuzo Fujikawa, Makizo Hirata, Shinichi Tamba, Noboru Fukui
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Patent number: 4683847Abstract: A valve system for the overhead valve type four-cycle engine disposing the intake and exhaust valves substantially symmetrically to each other with respect to the cylinder center line, wherein the valve stems are so tilted in the cylinder head that the valve bodies are in juxtaposition close to the cylinder center line. Guide cams are disposed around the circumferential surface of the crank shaft, respectively return back to the same starting point while making two turns, and respectively have one projection in the course of the turn, for driving the intake and exhaust valves. Between the guide cams and the respective intake and exhaust valve, a sliding piece, push rod and rocker arm are provided, and the projection on each of aforesaid cam is designed to be placed at such a position as to engage with the sliding piece to the opening timing of the intake and exhaust valves.Type: GrantFiled: December 20, 1985Date of Patent: August 4, 1987Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tetsuzo Fujikawa, Makizo Hirata, Shinichi Tamba
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Patent number: 4682573Abstract: Disclosed is a valve gear for use in a four-cycle engine which eliminates the necessity of providing a cam shaft. In the valve gear, a guide or guides, each of which is shaped like a closed curve making two rounds of a crank shaft with one intersection on the way, are provided. An air-intake valve and/or exhaust valve are controlled in accordance with the movement of a slider member sliding along the guide or guides.Type: GrantFiled: May 9, 1986Date of Patent: July 28, 1987Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tetsuzo Fujikawa, Makizo Hirata, Shinichi Tamba
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Patent number: 4658767Abstract: A vertical shaft V-type engine having a vertical crankshaft and a pair of right and left hand cylinders arranged in V-shape, the engine comprising a carburetor arranged within a V-bank defined between both cylinders and an air cleaner arranged upwardly of the carburetor. The engine is also provided with an air fan and the air cleaner is arranged adjacent to a fan housing of the air fan.Type: GrantFiled: September 26, 1985Date of Patent: April 21, 1987Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Tetsuzo Fujikawa, Makizo Hirata, Shinichi Tamba