Patents Represented by Attorney Ronald E. Greigg
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Patent number: 8042884Abstract: The invention relates to a hydraulic vehicle brake system having a service brake which can be actuated by muscle force and having a device for regulating the wheel slip. It is proposed in such a vehicle brake system to use suction pumps in connection with specially-designed accumulators. The accumulators have separating elements which in each case separate a first accumulator chamber from a second accumulator chamber. An inflow opens out into the first accumulator chamber, and an outflow, which is separate from the inflow, outlets out of the first accumulator chamber. The separating element is arranged so as to be freely movable between two end positions, and in one of its end positions, blocks a pressure medium connection of the inflow to the outflow.Type: GrantFiled: April 25, 2007Date of Patent: October 25, 2011Assignee: Robert Bosch GmbHInventors: Andreas Weh, Juergen Tandler
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Patent number: 8038083Abstract: The invention relates to a fuel injector for injecting fuel into a combustion chamber, having a solenoid valve for controlling a mini-servo valve. A movable armature can be placed in a sealing fashion on a valve seat in a lower armature chamber, wherein in addition, the mini-servo valve is held in an injector body and seals a control line against a flat seat. By means of the flat seat, during an actuation of the solenoid valve, the control line can be relieved of pressure from a high fuel pressure to a return pressure into at least one return line. A mechanism for reducing pressure oscillations are provided in the at least one return line, which includes at least one diaphragm cell which is held in a recess and which is placed in fluidic connection with the at least one return bore. A fuel injector with the mechanism for reducing pressure oscillations is therefore created in the at least one return line which operates without a leakage flow and has a simple and effective function.Type: GrantFiled: April 27, 2007Date of Patent: October 18, 2011Assignee: Robert Bosch GmbHInventors: Dieter Junger, Nadja Eisenmenger, Christian Faltin
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Patent number: 8028761Abstract: The invention is based on an electric power tool having at least one drive unit and a gear unit, where the gear unit is a drive element for applying force to a piston unit. It is proposed that the drive element and the piston unit be arranged in an axially parallel manner. At least a region of the drive element overlaps axially with a longitudinal portion of the piston unit. The drive unit is arranged approximately centrally in an axial extension of the piston unit and the longitudinal axis of the drive unit is arranged transversely to the piston longitudinal axis.Type: GrantFiled: June 13, 2007Date of Patent: October 4, 2011Assignee: Robert Bosch GmbHInventor: Gerhard Meixner
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Patent number: 8020675Abstract: The invention relates to an electromechanical disk brake which has a switchable freewheel in order to be configured as a parking brake. The switchable freewheel includes a clamping roller freewheel having rollers for locking a motor shaft of an electric motor of the brake. A locating bearing of the motor shaft of an electric motor, and the freewheel are accommodated on a cover of a housing of the electric motor, and all the electric connections of the disc brake are routed via the cover. The number of components used can be reduced considerably by the integrated design. Moreover, the positional tolerances of the freewheel in relation to the motor shaft can be reduced with the aid of the invention.Type: GrantFiled: June 6, 2006Date of Patent: September 20, 2011Assignee: Robert Bosch GmbHInventors: Chi-Thuan Cao, Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik, Bernd Goetzelmann, Hans Frick
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Patent number: 8015778Abstract: In a method for filling bulk goods into containers designed to accommodate a certain number of bulk items, at least one bulk goods conveyor is used to transport the bulk goods towards at least two pickers which are consecutively arranged in the direction of transport. The pickers are used to fill the bulk goods into empty spaces in containers, transported on at least one container conveyor. When the supply of bulk goods decreases or is discontinued, the at least one picker arranged downstream in the direction of transport of the bulk goods conveyor gives preference to containers with a high filling level. Completely empty containers are preferably no longer filled. Thus the bulk goods conveyor can be emptied within a short period and almost all bulk goods are packed without necessitating manual filling of the containers.Type: GrantFiled: July 4, 2006Date of Patent: September 13, 2011Assignee: Robert Bosch GmbHInventor: Reto Tischhauser
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Patent number: 8017009Abstract: The present invention relates to a fuel filter having a filter element and connections for the fuel inlet and the fuel outlet. In order to permit a more compact design, the fuel filter employs flat, block-shaped filter element.Type: GrantFiled: July 20, 2004Date of Patent: September 13, 2011Assignee: Robert Bosch GmbHInventors: Julen Burgoa Arteche, Cesar Garcia Benitez, Enrique Casillas Torres, Julian De La Azuela, Candido Juara Ropero, Teresa Serrano Gil
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Patent number: 8012618Abstract: Known rechargeable batteries contain a cell that is received in a cell cup. For monitoring the temperature of the rechargeable batteries, PTC elements are used, but they increase the amount of space needed and can be accommodated in a battery pack only with difficulty. For the sake of simple accommodation, a rechargeable battery has a cell, which is received in a cell cup. According to the invention, for monitoring the temperature of the cell, a temperature-dependent element, in particular a PTC element, is provided that at least partially surrounds the cell cup. The invention is intended in particular for battery packs in which temperature monitoring is required.Type: GrantFiled: July 2, 2008Date of Patent: September 6, 2011Assignee: Robert Bosch GmbHInventor: Thomas Heinrich
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Patent number: 8011443Abstract: The invention is a striking mechanism for a handheld power tools in particular electric hammer. A piston is arranged in an axially bidirectionally movable manner in a guide tube. A striker is provided which acts on a striking pin and which is held in a movable manner in the guide tube. A compression space is delimited by the piston and the striker such that an air cushion is enclosed therein. It is proposed that at least one spring element is provided between the striker and the striking pin.Type: GrantFiled: October 24, 2007Date of Patent: September 6, 2011Assignee: Robert Bosch GmbHInventors: Gerhard Meixner, Otto Baumann, Jan Koalick
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Patent number: 8011907Abstract: A piston pump having a retaining device for retaining a spring element for restoring a closing element of a valve; the retaining device includes a receiving region for receiving and bracing the spring element and an integrally formed sealing region, in order to seal off a pressure chamber from a low-pressure region of the piston pump.Type: GrantFiled: July 14, 2005Date of Patent: September 6, 2011Assignee: Robert Bosch GmbHInventors: Rene Schepp, Wolfgang Schuller, Juergen Reiner
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Patent number: 8006951Abstract: Disclosed is a solenoid valve having a magnet unit and a valve cartridge having a capsule, an armature guided longitudinally in the capsule and connected to a sealing pin guided longitudinally inside a valve insert, and a valve body with a sealing seat; a magnetic force generated by the magnet unit moves the armature together with the sealing pin from an initial position toward the valve body counter to the force of a return spring, causing the sealing pin to move into and close the sealing seat in an end position, where the initial position represents a maximum volumetric flow between a valve inlet and a valve outlet. A spring support is embodied and situated so that the return spring is supported outside the volumetric flow and presses the armature into the initial position against the capsule, and the inlet and outlet are embodied and situated so that the direction of the volumetric flow assists the closing motion of the armature with the sealing pin.Type: GrantFiled: February 12, 2008Date of Patent: August 30, 2011Assignee: Robert Bosch GmbHInventors: Harald Guggenmos, Martin Kirschner, Robert Mueller, Peter Ullmann
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Patent number: 8002088Abstract: A self-boosting electromechanical friction brake for a motor vehicle in which, with an electromechanical actuator, a friction brake lining can be pressed against a brake disk, and the friction brake lining is braced in the brake caliper via a wedge mechanism, which effects a self boosting. A friction brake lining which is pressed by the actuator has with a lower coefficient of friction, and in particular with less relative fluctuation in the coefficient of friction, than another friction brake lining positioned fixedly in the brake caliper. An operation-dictated fluctuation in the coefficient of friction and thus a change in the self boosting is reduced, and as a result the disk brake, with a low coefficient of friction, can be actuated with less actuation force and less actuation energy.Type: GrantFiled: April 28, 2005Date of Patent: August 23, 2011Assignee: Robert Bosch GmbHInventors: Dietmar Baumann, Dirk Hofmann, Herbert Vollert, Willi Nagel, Andreas Henke, Bertram Foitzik, Bernd Goetzelmann
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Patent number: 7992544Abstract: The invention relates to a fuel injector which has a retaining body and an injection nozzle nut. An expansion sleeve, which can be supplied with hydraulic fluid, is provided around the periphery of the fuel injector, in particular around the periphery of the retaining body. The expansion sleeve includes at least one pocket-type recess, which can be supplied with hydraulic fluid.Type: GrantFiled: December 6, 2007Date of Patent: August 9, 2011Assignee: Robert Bosch GmbHInventor: Juergen Hanneke
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Patent number: 7992810Abstract: The invention relates to a fuel injector having a coupler. The reciprocating movement of an actuator is transmitted by the coupler to a pin-shaped injection valve member which is guided into the nozzle body. The coupler has a valve piston and a coupler sleeve, and the valve piston is displaced in the inner diameter area of the coupler sleeve. The inner diameter of the coupler sleeve is greater than the outer diameter of the injection valve member. The difference between the inner diameter of the coupler housing and the outer diameter of the injection valve member is 0.2 mm or less.Type: GrantFiled: December 28, 2007Date of Patent: August 9, 2011Assignee: Robert Bosch GmbHInventors: Andreas Kellner, Holger Rapp, Martin Katz
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Patent number: 7987835Abstract: The invention relates to a fuel injector, in particular a common rail injector, for injecting fuel into a combustion chamber of an internal combustion engine. The fuel injector has an injection valve element which is adjustable between a closing position and an opening position and which is switchable by means of a control valve. The control valve has a sleevelike control valve element that is adjustable along an adjustment axis and in its closing position rests sealingly on a control valve seat element. According to the invention, it is provided that the control valve seat element is disposed movably relative to the adjustment axis of the control valve element.Type: GrantFiled: May 4, 2009Date of Patent: August 2, 2011Inventor: Nadja Eisenmenger
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Patent number: 7988562Abstract: The observation apparatus provided with the observation wheel comprises a water tank housing fish and being arranged around the substantially lower half of a rotation locus of the observation wheel in which at least an inside face facing the observation wheel of the water tank is formed of a transparent material.Type: GrantFiled: June 5, 2009Date of Patent: August 2, 2011Inventor: Norio Kojiro
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Patent number: 7990023Abstract: An arrangement is proposed for forming a piezoelectric actuator, which has at least one piezoelectric element that in each case consists of a multi-layer structure of piezoelectric-layers, wherein internal electrodes arranged between the piezoelectric-layers in the direction of the build-up of the layers of the piezoelectric element, have an electrical voltage of different polarity alternately applied to them. Around the piezoelectric element, or in the case of multiple piezoelectric elements positioned in series in the activation direction, around the piezoelectric elements, and at least partially around the actuator head and the actuator foot there is arranged a covering system made from at least one layer of an insulating material. The at least one layer encloses the joints between the piezoelectric element or elements and the actuator head and the actuator foot, forming a seal.Type: GrantFiled: May 22, 2007Date of Patent: August 2, 2011Assignee: Robert Bosch GmbHInventors: Albano De Paoli, Stefan Schuerg, Wolfgang Stoecklein, Holger Rapp, Thomas Pauer, Friedrich Boecking, Marco Holst, Helmut Sommariva, Claudia Klotz, Peter Cromme
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Patent number: 7971917Abstract: The apparatus for an automated drill pipe casing stabbing arm includes a telescopic tube assembly, a movable roller bracket assembly, a movable arm assembly, a mounting assembly, an apparatus actuator, and a PLC portable remote control device. An actuator mechanism positions the gripping arm assembly and the roller bracket assemble relative to one another in order to capture and grip the casing therebetween to support and grip the casing on the circumference thereof from opposing diametric sides. The automated stabbing arm is installed on a rig's mast or derrick. In a working position, the apparatus is oriented horizontally to provide radial support and guidance to the casing. A rig worker on the rig floor controls the apparatus by the portable remote control device.Type: GrantFiled: August 21, 2008Date of Patent: July 5, 2011Inventor: Yaogen Ge
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Patent number: 7959005Abstract: The invention relates to a blister arrangement which includes a blister strip having a plurality of cups. The blister strip has a base region and a cover film and wherein a tablet or the like is disposed inside each cup. A blister pocket accommodates the blister strip. The blister pocket has a substantially rectangular shape with a front side, a rear side, a first lateral region, a second lateral region, and at least one open face. The front side has a first recess that is the same size as or slightly larger than the size of a cup, and the rear side has a second recess opposite the first recess. The cup is oriented in the direction of the second recess, and the cover film of the blister strip is oriented toward the first recess. The blister strip may be pulled out through the open face.Type: GrantFiled: February 22, 2008Date of Patent: June 14, 2011Assignee: Robert Bosch GmbHInventors: Nancy Berg, Uwe Stroinski
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Patent number: 7954909Abstract: In a fluid pressure booster, when an input shaft and a valve plunger advance, an atmosphere valve opens to introduce air into a variable pressure chamber. At this time, the input shaft has not moved by a predetermined stroke, and thus a projection of the valve plunger is positioned within an inner peripheral surface of a control valve body, thus forming an orifice, which causes air to be sucked at a restricted flow rate. As a result, generation of noise is suppressed. When the input shaft moves the predetermined stroke, the projection of the valve plunger is positioned away from the inner peripheral surface of the control valve body and the orifice is no longer formed. Accordingly, the flow rate of the air is not restricted by the orifice, and thus a relatively large amount of air is sucked into and introduced into the pressure variation chamber.Type: GrantFiled: March 27, 2006Date of Patent: June 7, 2011Assignee: Bosch CorporationInventor: Nobuyuki Yamashita
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Patent number: 7954475Abstract: A fuel injector for injecting fuel into a combustion chamber of an internal combustion engine. A fuel supply line enters an injector housing from a high-pressure fuel source which can be hydraulically connected to a pressure chamber. A 3/2 directional control valve for injecting fuel into the combustion chamber has a valve piston which can be moved axially back and forth between a rest position and an injection position. The 3/2 directional control valve, by a first end face of the valve piston, is hydraulically coupled to and can be activated by a piezoelectric actuator. The 3/2 directional control has a ball element which is connected to a second end face of the valve piston and, in the rest position, can be moved against a first sealing edge and, in the injection position, can be moved against a second sealing edge.Type: GrantFiled: April 25, 2007Date of Patent: June 7, 2011Assignee: Robert Bosch GmbHInventors: Nadja Eisenmenger, Michael Mennicken, Hans-Christoph Magel