| Patent Number |
Title Of Patent |
Date Issued |
| 5335487 |
Engine speed control apparatus for a working vehicle |
August 9, 1994 |
| A rotating rate control apparatus for adjusting rotation of an engine of a working vehicle between a minimum rate and a maximum rate. The control apparatus has a first, a second and a third rotating rate adjusting devices. The first rotating rate adjusting device adjusts a basic rotating |
| 5316721 |
Heat-resistant alloy having high creep rupture strength under high-temperature low-stress condit |
May 31, 1994 |
| A heat-resistant alloy having a high creep rupture strength under high-temperature low-stress conditions and excellent resistance to carburization even when used at a high temperature exceeding 1100.degree. C. The alloy comprises, in % by weight, more than 0.1% to less than 1.5% of C |
| 5314745 |
Magnetic recording medium having a glass substrate, heat retaining non magnetic metal layer form |
May 24, 1994 |
| A magnetic recording medium comprising a substrate, a ground layer formed over at least one surface of the substrate, and a magnetic layer formed over the ground layer, the ground layer being formed of a material containing at least 95% by weight of Cr. The substrate comprises a base of |
| 5307691 |
Torque transducer |
May 3, 1994 |
| A torque transducer including a ferromagneto-stricting device provided for a rotational shaft, a magnetic field supply device for supplying a magnetic field to the ferromagneto-stricting device, a sensing device for sensing a change in the magnetic permeability of the ferromagneto-st |
| 5307690 |
Temperature compensating device for torque measuring apparatus |
May 3, 1994 |
| A temperature compensating device for a torque measuring apparatus of the magneto-strictive type. A torque transmission shaft has a magnetically anisotropic portion formed on the periphery of the shaft. A sensing coil is disposed around the torque transmission shaft in corresponding rela |
| 5307612 |
Lawn mower having a steering handle switchable between a walking mode and a riding mode |
May 3, 1994 |
| A lawn mower for use in a walking mode and a riding mode, having a chassis frame, an engine mounted on a rearward position of the chassis frame, front wheels, driven rear wheels, transmissions for transmitting drive from the engine to the rear wheels after varying speed of the drive, a |
| 5302181 |
Oxide-dispersion-strengthened heat-resistant chromium-based sintered alloy |
April 12, 1994 |
| An oxide-dispersion-strengthened sintered alloy improved in oxidation resistance and compressive strength for use at high temperatures of at least 1350.degree. C. The alloy includes a matrix of a metal consisting substantially or predominantly of Cr, and 0.2 to 2.0% by weight of Y.sub.2 |
| 5295553 |
Rear wheel steerable working vehicle |
March 22, 1994 |
| A working vehicle comprises front wheels, steerable rear wheels steerable up to a minimum radius turning region lying in a transverse direction substantially perpendicular to a longitudinal direction of a vehicle body, and a rear wheel control device for steering the rear wheels. A r |
| 5295414 |
Vibration and noise proofing system for a hydrostatic stepless transmission attached to a transm |
March 22, 1994 |
| A vibration and sound proofing system for a working vehicle such as a tractor or a lawn mower having a hydrostatic stepless transmission (HST) included in a propelling transmission system for transmitting engine output to wheels. The HST is mounted in a case secured to intermediate m |
| 5293956 |
Four wheel drive working vehicle |
March 15, 1994 |
| A four wheel drive working vehicle having a front wheel transmission switchable between a standard position for driving front wheels at substantially the same speed as rear wheels, and an accelerating position for driving the front wheels at a higher speed than the rear wheels; right |
| 5289680 |
Two pump hydraulic system with relief valves having different relief pressures |
March 1, 1994 |
| A hydraulic circuit for a working vehicle comprising a first pump, a second pump, a first actuator, a second actuator, and a selector valve having a plurality of control positions. The selector valve is switchable between a first position for connecting the first pump to the first actuat |
| 5288228 |
Heat-resistant materials |
February 22, 1994 |
| A heat-resistant material having excellent high-temperature strength and high oxidation resistance at temperatures exceeding 1300.degree. C. The material is a heat-resistant Cr-Fe alloy including at least 60% of Cr and at least 5% of Fe, and having a mean grain size of at least 50 .mu.m |
| 5284115 |
Cooling system for a working vehicle |
February 8, 1994 |
| A cooling structure for a motor section of a working vehicle with an engine having a vertical output shaft and mounted in an engine hood having an ambient air intake opening defined in an upper surface thereof, and a fan disposed above the engine to draw in cooling air. The cooling air i |
| 5263810 |
Working implement connection structure for a working vehicle having a boom assembly |
November 23, 1993 |
| A connection structure for connecting a loader bucket, through a mounting bracket pivotable by extension and contraction of a cylinder, to a forward end of a boom assembly vertically movably attached to a working vehicle. The mounting bracket includes a pivot element and an engaging memb |
| 5263385 |
Speed control system for a working vehicle having a stepless transmission |
November 23, 1993 |
| A speed control system for a working vehicle having a stepless transmission with a speed control shaft disposed on one side thereof and shiftable between a driving region and a neutral position. This speed control system includes a shift lever disposed on one side of a driver's section f |
| 5257673 |
Braking control system for a vehicle driven by an electric motor |
November 2, 1993 |
| An emergency braking system for a vehicle driven by an electric motor. The vehicle includes a manually operable accelerator lever, a displacement detector for detecting displacement of the accelerator lever, an emergency detector disposed in a region of the accelerator lever for detectin |
| 5255752 |
Body frame structure for crawler type working vehicle |
October 26, 1993 |
| A frame structure for a working vehicle having crawler running devices includes main frames extending longitudinally along right and left sides of a vehicle body. The crawler running devices have track frames extending below and along the main frames, respectively. An oil tank is dispose |
| 5248237 |
Frame structure of a working vehicle for attaching a working implement |
September 28, 1993 |
| A frame structure of a working vehicle for attaching working implements includes front axle frames, side frames for attaching a front loader, and rear reinforcing members. The front axle frames extend forwardly and substantially parallel to each other on opposite sides of the working |
| 5247784 |
Transmission system capable of driving right and left drive wheels at different speeds |
September 28, 1993 |
| A walking operator type lawn mower having stepless transmissions allocated to right and left rear wheels for changing speed of engine drive and outputting the drive to the right and left rear wheels, respectively, whereby the right and left rear wheels may be driven at different speeds. |
| 5244236 |
Corrosion-preventive sleeve for drilled hole in metal pipe and tool for mounting the same |
September 14, 1993 |
| The invention relates to a corrosion-preventive sleeve for preventing corrosion of a drilled hole in a metal pipe, and also to a mounting tool for mounting this corrosion-preventive sleeve in such drilled hole. The corrosion-preventive sleeve comprises an elastic sleeve and a corrosi |
| 5240367 |
Front loader attaching and removing method |
August 31, 1993 |
| A loader having a working implement is removed from a tractor by placing the implement and a stand into contact with the ground as spaced apart from each other in the direction of advance of the tractor, disconnecting each of masts from a mount, subsequently advancing the tractor to rais |
| 5239812 |
Frame structure for a front mower |
August 31, 1993 |
| A front mower having a grass cutting unit connectable to a front portion and a grass catcher connectable to a rear portion thereof, comprises a main frame structure extending longitudinally of a mower body. The main frame structure includes a pair of right and left front frames and a pai |
| 5239284 |
Antitheft device |
August 24, 1993 |
| An antitheft device of the type having a body unit to be attached to an article displayed in a shop for protecting the article against shoplifting. The device includes a transmitter for radiating an AC signal to a particular area, and the body unit which is adapted to receive a signa |
| 5235811 |
Control change system for a hydraulic work vehicle |
August 17, 1993 |
| A control change system for a backhoe in a construction vehicle, comprising a plurality of pilot valves for generating a pilot pressure corresponding to operations of a first and a second control levers, respectively, and a hydraulic switching unit for relaying the pilot pressure from th |
| 5233880 |
Speed control system for a vehicle having a stepless transmission |
August 10, 1993 |
| A running control system for a vehicle having a stepless transmission includes a displaceable drive arm connected to the stepless transmission, a control member such as a pedal shiftable within a predetermined range, a transmission mechanism for transmitting a shift of the control member |
| 5230403 |
Steering platform for a working vehicle |
July 27, 1993 |
| A steering platform includes a main floor supported by a body framework extending longitudinally of a vehicle, and footrests extending from the main floor laterally outwardly of the framework. A brake pedal and a shift pedal are arranged on the footrests. The framework in a steering plat |
| 5228530 |
Muffler system for an engine disposed rearwardly of a vehicle |
July 20, 1993 |
| A lawn mower having a driver's seat mounted on a vehicle body, an engine mounted rearwardly of the driver's seat, a radiator and a radiator fan disposed between the driver's seat and engine, an engine hood for covering the engine and radiator, and a muffler disposed in a space defined by |
| 5224327 |
Lawn mower having a blower for transporting grass clippings to a grass catcher |
July 6, 1993 |
| A lawn mower includes a blade housing enclosing grass cutting blades and having a lateral discharge opening, a blower unit connected to the discharge opening, and a duct connected to the blower unit for transporting grass clippings to a grass catcher. The blower unit includes an elbo |
| 5215056 |
Engine speed control system for a working vehicle |
June 1, 1993 |
| An engine speed control system for a working vehicle having an engine, and a propelling transmission and a power takeoff device driven by the engine. Engine speed is adjustable by an accelerator controlled by control signals outputted from a control unit. The control unit is connected to |
| 5211070 |
Speed control system for a vehicle having a braking device and a stepless transmission |
May 18, 1993 |
| A speed control system for a vehicle having a braking device and a stepless transmission. A change speed member for controlling the stepless transmission is shiftable between a forward drive zone and a backward drive zone across a neutral position. The change speed member is urged to |
| 5207187 |
Air cooling system for a vertical engine |
May 4, 1993 |
| An air cooling system for a vertical engine having a cylinder head projecting forwardly of a vehicle. The vehicle also includes a steering box disposed rearwardly of the engine, and a hood extending from the steering box and over the engine. This cooling system includes a cooling fan |
| 5205145 |
Method of producing torque sensor shafts |
April 27, 1993 |
| The invention relates to a method of producing magnetostriction type torque sensor shafts adapted to detect a change in permeability when a torque is applied. A plurality of shot peening operations are applied to the surface of a torque sensor shaft in such a manner that the diameter of |
| 5201422 |
Classifier for powdery material |
April 13, 1993 |
| A classifier for powdery material has a cylindrical casing formed at an upper portion thereof with an inlet port for introducing the material to be classified into the casing in a tangential direction of an inner wall thereof. The casing has a conical portion formed in its bottom end wit |
| 5200087 |
Method of and apparatus for recovering mercury from drainage |
April 6, 1993 |
| In a method of and apparatus for recovering mercury from drainage, mercury-containing waste water is fed into a first treating tank where the waste water is heated together with a metal having a stronger ionizing tendency than mercury, to reduce mercury ions in the waste water and free |
| 5199521 |
Lawn mower having passages for engine cooling air |
April 6, 1993 |
| A lawn mower having a driver's section and a grass cutting unit forwardly of a vehicle body; an engine mounted between front and rear wheels; and a pair of main frames extending longitudinally of the vehicle body, each of the main frames including a front frame member, and a rear frame m |
| 5192456 |
Apparatus for treating activated sludge and method of cleaning it |
March 9, 1993 |
| An activated sludge treating apparatus for use in treating wastewater, such as gray water and sewage. A plurality of filter membrane modules are vertically arranged in parallel at predetermined intervals within a treating tank. The water to be treated which is stored in the treating |
| 5186297 |
Hydraulic clutch operating apparatus |
February 16, 1993 |
| A hydraulic operating apparatus includes a release hub for supporting a release bearing, a piston formed separately from the release hub, and an abutting plate disposed between the piston and release hub as a power transmission relay member for absorbing shocks. The abutting plate may |
| 5186059 |
Torque sensor shaft |
February 16, 1993 |
| A torque sensor shaft for a non-contacting torque sensor including magnetically anisotropic portions formed on the surface of the shaft. Absolute value of angle of inclination of the anisotropic directions of the magnetically anisotropic portions is set lower than 40 degree so as to |
| 5180539 |
Method of and apparatus for producing metal powder |
January 19, 1993 |
| A cooling liquid is injected into and supplied to a cooling tubular body along its inner periphery to form a cooling liquid layer flowing down the inner peripheral surface of the body while revolving. A molten metal is then injected into the cooling liquid layer from the inner peripheral |
| 5161634 |
Electric vehicle |
November 10, 1992 |
| An electric vehicle that runs at a speed controlled by adjusting power supply to an electric motor in response to a speed setting signal from a speed setting device including an accelerator lever and a change speed lever. This vehicle comprises a first control unit for producing a target |
| 5158240 |
Pulverizer |
October 27, 1992 |
| A pulverizer has a shell having an inlet port for introducing air and the material to be pulverized into the shell and a discharge port through which the pulverized product is discharged from the shell. The shell is filled with a pulverizing medium such as steel balls. A vertical screw |
| 5155985 |
Working vehicle controllable by walking operator and having independently driven right and left |
October 20, 1992 |
| A lawn mower controllable by a walking operator and having two control levers each for controlling a brake and a propelling clutch. Each control lever is pivotable to a "run" position to engage the clutch and render the brake inoperative, a "neutral" position to disengage the clutch and |
| 5152659 |
Boom assembly for work machine |
October 6, 1992 |
| A boom assembly for a work machine comprising: a pair of first and second members of which one end pivot part is connected pivotally to a base machine and the second end pivot part supports a loading tool pivotally. An inflecting part is provided in the middle of the longitudinal directi |
| 5148789 |
Governor device of diesel engine |
September 22, 1992 |
| In a governor device of a diesel engine, a control rack of a fuel injection pump is adapted to be controllably actuated by a balance between a governor spring and an engine revolution speed responsive means. A speed control member is adapted to be manipulated for adjusting a tension forc |
| 5139121 |
Braking system for a vehicle having a propelling electric motor and an electromagnetic brake |
August 18, 1992 |
| A braking system for a vehicle having a propelling electric motor and an electromagnetic brake, includes a friction brake; a manually operable brake control lever; an interlocking device for transmitting a displacement of the brake control lever to operate the friction brake; a detec |
| 5138824 |
Safety system for a lawn mower |
August 18, 1992 |
| A safety system for a lawn mower having an engine, a propelling transmission line for transmitting drive from the engine to drive wheels, and a PTO transmission line for transmitting drive from the engine to a grass cutting unit. An engine start is allowed when the propelling transmi |
| 5130619 |
Drive control apparatus for an ultrasonic motor |
July 14, 1992 |
| A drive control apparatus for an ultrasonic motor having a vibrator with a piezoelectric element and an elastic element. The apparatus comprises a power source for supplying alternating power to the piezoelectric element, a voltage detecting device for detecting a voltage applied to the |
| 5129869 |
Ring cone type stepless transmission |
July 14, 1992 |
| A ring cone type stepless transmission for effecting change speed on a torque received from an input section and transmitting the torque to an output section. The transmission comprises a main shaft for rotatably supporting a carrier which rotatably supports a plurality of taper cones. |
| 5125232 |
Control change system for a hydraulic working vehicle |
June 30, 1992 |
| A control change system for a hydraulic working vehicle having a plurality of hydraulic actuators operable by control levers each shiftable to a plurality of control positions. This system includes a plurality of pilot-operated control valves for controlling pressure oil supply to the |
| 5123805 |
Frame structure for attaching a working implement |
June 23, 1992 |
| A frame structure for connecting working implements to a vehicle body having right and left main frames extending parallel to each other longitudinally of the vehicle body. The main frames are divided into upper front frames and lower rear frames which are interconnected through an i |
