Patents Represented by Attorney Edwin E. Greigg
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Patent number: 4809955Abstract: A fence or railing is disclosed which comprises a generally square vertical post formed, along each outer wall, with a U-shaped channel running its full length; the sidewalls of the channels defining two guide slots and the post further having a non-circular central open-ended bore. This central bore slidably and snugly receives, at its lower end, a pedestal which is fixed to a base plate. Mounted on the post is one end of an area-separation section made up of a top and a bottom horizontal rail interconnected by spaced vertical struts. The ends of the rails are inserted into one of the post channels and kept apart by flat spacer elements of identical constant cross-sections and lateral wings slid in the guide slots of the post channel. One spacer element keeps the bottom rail away from the base plate while a second spacer element separates the two rails from one another.Type: GrantFiled: May 6, 1988Date of Patent: March 7, 1989Inventor: Clement Veilleux
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Patent number: 4809557Abstract: The invention relates to a method and an apparatus for measuring the torque passed through a rotatable machine element, in which two parts connected to this machine element rotate relative to one another. This relative rotation is translated into an amplified axial movement, and the axial movement is measured as a standard for the transmitted torque.Type: GrantFiled: April 1, 1987Date of Patent: March 7, 1989Assignee: Ringspann Albrecht Maurer KGInventors: Ruprecht Maurer, Karlheinz Timtner, Frank Reig
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Patent number: 4807846Abstract: An electromagnetically actuatable fuel injection valve which serves to supply fuel to a mixture-compressing internal combustion engine having externally supplied ignition. The fuel injection valve includes a valve housing with a mouth piece in which a valve seat body is disposed, two magnet coils two cores and one armature, which has a spherical guide section and is connected to a valve needle. The spherical guide section is slidably supported with its circumference in a guide bore of the valve seat body and in its stroke movement away from the core is limited by a tapering stop opening which adjoins the guide bore. A plastic bushing is mounted on a guide step of the valve seat body and is pressed by a spring against the core end face, thereby preventing a dirct flow of fuel to the remnant air gap on the armature, as a result of which the depositing of soil particles in the gap is avoided.Type: GrantFiled: November 24, 1987Date of Patent: February 28, 1989Assignee: Robert Bosch GmbHInventors: Max Greiner, Udo Hafner, Waldemar Hans, Heinrich Knapp, Wolfgang Kramer, Rudolf Krauss, Ferdinand Reiter, Peter Romann, Rudolf Sauer
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Patent number: 4805965Abstract: In a so-called starting aid for motor vehicles, synchronism in the rpm of the drive wheels during starting is provided by feeding a brake pressure derived from the rpm difference of the drive wheels into the wheel brake cylinder associated with the wheel having the higher rpm. To this end, one brake pressure controller having a control piston and a valve is installed in each brake line to the wheel brake cylinders of at least two wheel brakes. The control pistons are actuated in opposite directions via a final control element to which a control signal derived from the rpm difference is supplied. Upon displacement, whichever control piston is driven closes the valve and feeds brake pressure into the associated wheel brake cylinder. In order that the starting aid will have a high control speed and a small structural volume, the final control element is embodied as an electric control motor.Type: GrantFiled: March 3, 1988Date of Patent: February 21, 1989Assignee: Robert Bosch GmbHInventors: Wolf-Dieter Jonner, Guenter Kaes, Wolfgang Maisch, Alwin Stegmaier
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Patent number: 4805580Abstract: A fuel injection device having a pump piston which during the supply stroke pumps fuel from a pump work chamber into an injection line which leads to a fuel injection valve. Directly adjacent to the branching off of the injection line from the pump work chamber, at the diameter of the injection line, a valve seat is provided, at which the injection line then merges with a chamber into which a pressure valve closing member plunges. The valve closing member is tightly guided in a guide bore, loaded by a valve spring, and in the chamber has a pressure shoulder adjoining the sealing surface that cooperates with the valve seat. The rear side of the pressure valve closing member communicates with a continuously open relief line.Type: GrantFiled: June 4, 1986Date of Patent: February 21, 1989Assignee: Robert Bosch GmbHInventors: Dominique Buisson, Francois Henry, Jean Leblanc, Helmut Pfeifle, Jean Pigeroulet
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Patent number: 4805668Abstract: In a brake fluid container for hydraulic motor vehicle brake systems having a housing with a fill connector a container cap closing off the fill connector, a filling filter suspended in the fill connector and protruding into the housing interior, and a level switch secured to the container cap for indicating a minimum allowable fill level in the housing in order to attain extensive damping of a float of the level switch with respect to fluid fluctuations caused by vehicle behavior, the filling filter is embodied as a closed float chamber, extending to below the minimum allowable fill level in the housing with guides for the float. On its lower end, the filling filter is provided with a throttle bore located near the minimum allowable fill level and in a region near the maximum fill level, it is provided with filter windows for the sake of rapid filling of the housing with fluid.Type: GrantFiled: May 4, 1988Date of Patent: February 21, 1989Assignee: Robert Bosch GmbHInventors: Gerhard Genter, Edgar Schmitt, Hans-Dieter Siems
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Patent number: 4803875Abstract: An apparatus for determining the flow rate of a flowing medium having a substrate fastened at one end with a resistor arrangement disposed on the substrate which includes a layer-like measuring resistor (R.sub.S) and a layer-like heating resistor (R.sub.H). The heating output is regulated such that the measuring resistor (R.sub.S) has a constant electrical resistance, representing a flow rate of the flowing medium. By suitable provisions, such as a meandering pattern for the heating resistor (R.sub.H), the local resistance of the heating resistor (R.sub.H) crosswise to the flow direction is made to decrease toward the fastened end. Thus, the temperature generated by means of the heating resistor (R.sub.H) inside the substrate and the measuring resistor (R.sub.S) decreases toward the fastened end.Type: GrantFiled: October 13, 1987Date of Patent: February 14, 1989Assignee: Robert Bosch GmbHInventors: Ulrich Kuhn, Sybille Stumpf
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Patent number: 4804057Abstract: The invention relates to a power-assisted vehicle steering gear wherein a rotor is mounted directly on the pitman shaft via a coupling. The rotor rotates in a housing inner bore under the influence of circulating magnetic attraction in such a way that it is enabled to supply a torque to the pitman shaft.Type: GrantFiled: April 21, 1987Date of Patent: February 14, 1989Assignee: Robert Bosch GmbHInventor: Abdul R. Saeed
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Patent number: 4804060Abstract: A frame type tractor comprising an engine in a front portion, a transmission case in a rear portion thereof, a transmission shaft extending from the engine to the transmission shaft, and a front wheel drive shaft extending from the transmission case to a front wheel axle. The transmission shaft and front wheel drive shaft are connected to lower positions of the transmission case. An operator's step is mounted over the transmission shaft and front wheel drive shaft.Type: GrantFiled: October 5, 1987Date of Patent: February 14, 1989Assignee: Kubota LimitedInventor: Hirofumi Iritani
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Patent number: 4804392Abstract: An environmental clean air facility formed of a clear vinyl material secured to a frame formed by PVC pipes and fittings so that the clear vinyl material may be formed and draped over or attached to the frame to form a clean air enclosure. A power unit section including a blower motor having a prefilter unit on opposite ends through which air is drawn from the surrounding medium and directs the air through a HEPA filter, through an air delivery duct and into or out of the enclosure. The frame may be used for delivering air to the room or exhausting air from the room.Type: GrantFiled: September 17, 1987Date of Patent: February 14, 1989Inventor: Charles W. Spengler
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Patent number: 4804056Abstract: A frame type tractor comprising an engine mounted on a forward region of a body frame, and a transmission mounted on a rear region of the body frame and operatively connected to the engine through a transmission shaft. The transmission consists of an input section, a change speed section and an output section. The input section includes an input shaft connected to the transmission shaft, a wet type multidisk clutch for establishing and breaking transmission of a engine drive received from the input shaft, and an oil pump driven by the input shaft.Type: GrantFiled: October 21, 1987Date of Patent: February 14, 1989Assignee: Kubota LimitedInventors: Nobuyuki Toshikuni, Masao Takagi, Nobuyuki Nishiguchi
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Patent number: 4802648Abstract: An adjustable engine mount for shielding a vehicle body from oscillations of a drive unit, in which the magnitude of the damping and of the spring rate is controlled as a function of control signals of an electronic control unit. For adjusting the damping, the engine mount has an actuating device, by means of which the size of a throttle cross section between a first chamber and a second chamber of a damping chamber can be adjusted. For adjusting the spring rate, the engine mount has an air cushion which functions like a pneumatic spring element, which can be inflated and vented via a valve device. The electronic control unit has inputs for various input signals, which describe parameters that influence the motion of the drive unit relative to the vehicle body. The electronic control unit controls the damping and the spring rate of the engine mount as a function of the magnitude of at least one of the input signals.Type: GrantFiled: February 8, 1988Date of Patent: February 7, 1989Assignee: Robert Bosch GmbHInventors: Heinz Decker, Ortwin Engfer, Walter Kuhle
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Patent number: 4802568Abstract: Apparatus for selecting elongate containers from a mass of randomly-disposed containers such as capsules open at one end and at least partially closed at the other and depositing them with their open ends aligned for receiving a charge of material. The apparatus including first and second rotors, the first rotor including radially-disposed bores for receiving the containers and the second rotor including radially-disposed spokes for receiving containers with open ends toward the spokes. The first and second rotors including operable elements for removing the containers from the bores or spokes for transfer of the containers to a receiving device with the containers in the same orientation.Type: GrantFiled: June 17, 1987Date of Patent: February 7, 1989Assignee: Robert Bosch GmbHInventors: Rolf Haarer, Theo Moser, Klaus Reum
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Patent number: 4800995Abstract: An apparatus for damping courses of motion in particular for damping resilient wheel suspension systems in vehicles, having a damping piston that is displaceable inside a jacket tube which separates two work chambers and is connected to a piston rod. Between the work chambers there are flow connections, through which a flow is possible in only one direction, because of a unilateral actuation direction of separate check valves. The flow connections have throttle cross sections the size of which is definable by the position of a control slide inside a guide bore. The control slide is actuated via a control rod leading outside the jacket tube and is movable with two degrees of freedom. A motion in the direction of the first degree of freedom varies the throttle cross sections in the same direction, while a motion of the control slide in the direction of the second degree of freedom varies the throttle cross sections in opposite directions.Type: GrantFiled: October 20, 1987Date of Patent: January 31, 1989Assignee: Robert Bosch GmbHInventors: Wolfgang Bernhardt, Michael Friedow
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Patent number: 4800912Abstract: An electromagnetic valve consists of two valve housing parts, connected by crimping and axially braced, and having a magnetic pipe care therein. A flat armature is positively connected with a spherically shaped valve closing part, which extends through a central opening in a guide membrane for cooperation with a valve seat. The guide membrane rests via an outer circumference on a collar and is supported there via the axial tensioning force between the valve housing parts in assembled form. The guide membrane is welded to the collar on the outer circumference upon at least two points. Before the valve housing parts are combined, the guide membrane, abutting the collar, in concentrically guided into position by a centering body, having a slightly larger diameter than the valve closing part, on the valve seat and is welded at said points in this position. Thereupon the centering body is removed and the actual assembly of the valve is performed.Type: GrantFiled: April 15, 1985Date of Patent: January 31, 1989Assignee: Robert Bosch GmbHInventors: Udo Hafner, Rudolf Krauss, Rudolf Sauer
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Patent number: 4798421Abstract: A plunger system in a brake line between a master brake cylinder and a wheel brake cylinder of a vehicle, for modulating a brake pressure in the event of a sensor-detected danger of wheel locking or wheel spinning. The plunger system has a plunger that is axially displaceable in a housing. At one end, the plunger engages a variable pressure chamber toward the master brake cylinder and at the other it engages a variable pressure chamber toward the wheel brake cylinder. It has an axial bore, through which a rod passes, between the two pressure chambers, and this bore can be closed on opposite ends if there is a danger of wheel locking or if wheel spinning occurs. The closure of the axial bore is effected by an axial motion of the plunger, which takes place if the wheels lock, on the one hand, and if they spin, on the other.Type: GrantFiled: October 13, 1987Date of Patent: January 17, 1989Assignee: Robert Bosch GmbHInventors: Wolfgang Bernhardt, Michael Tischer
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Patent number: 4798260Abstract: A steering apparatus for a front wheel drive tractor comprising, at each of opposite lateral sides thereof, a front axle, a front axle case housing the front axle, a kingpin, a transmission case provided in an outer end region of the front axle case to be pivotable about the kingpin, and a front wheel attached to the transmission case and including a hub shaft. The kingpin is operatively connected to the front axle through a bevel gear transmission, and the hub shaft is operatively connected to the kingpin through a bevel gear transmission and a planetary reduction mechanism. The front wheel has a substantially zero camber angle, and the kingpin is inclined such that a lower portion of the transmission case disposed inwardly with respect to a center of the tractor is substantially contained inside a rim of the front wheel.Type: GrantFiled: November 7, 1986Date of Patent: January 17, 1989Assignee: Kubota, Ltd.Inventors: Masaru Nakata, Yuichi Kitao
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Patent number: 4798371Abstract: A chucking device, in particular a vise having two chuck jaws at least one of which is embodied in two parts in the longitudinal direction. A rail guide is present between the two parts, and one of the parts, serving as a pedestal part is joined to the supporting elements of the chucking device, while the other part can be removed and replaced via the rail guide, and the rail guide simultaneously acts as a means of coupling the two parts in the direction in which the chucking force is applied.Type: GrantFiled: September 24, 1987Date of Patent: January 17, 1989Inventor: Klaus Wallisser
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Patent number: 4796739Abstract: The present invention relates to a clutch actuation device wherein the functional connection between actuation of the clutch and the excursion of the clutch pedal is made via an interposed electronic control unit. A first depression sensor is located on the clutch pedal for the purpose of determining the set value and a further sensor for determining the actual value is located on a lever of the clutch. The lever is connected to an actuation cylinder which is adjustable by means of a control valve in response to the output signals from the electronic control unit. In addition to the set value which is determined via the sensor, the electronic control unit is supplied with an additional signal from a regulating unit; the additional signal being dependent on the presence of a regulating function of a locking protection control system (LPCS). Accordingly, the above-described device is designed to allow automatic actuation of the clutch in an LP control system.Type: GrantFiled: June 17, 1987Date of Patent: January 10, 1989Assignee: Robert Bosch GmbHInventors: Wolf-Dieter Jonner, Jurgen Zechmann
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Patent number: D300141Type: GrantFiled: July 31, 1985Date of Patent: March 7, 1989Assignee: Kubota, Ltd.Inventor: Nobumasa Kawashima