Patents Represented by Attorney Edwin E. Greigg
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Patent number: 5937909Abstract: A throttle element for installation in a fuel carrying conduit, which is embodied as a screwed in insert with a head that constitutes an annular gap in relation to a cylindrical circumference wall of the conduit and this annular gap is disposed as a filter upstream of the throttle of the throttle element.Type: GrantFiled: June 11, 1998Date of Patent: August 17, 1999Assignee: Robert Bosch GmbHInventors: Helmut Clauss, Bernd Rosenau
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Patent number: 5937734Abstract: The device relates to a piston pump, in particular a high pressure pump for a fuel injection device of an internal combustion engine, with at least one piston that is supported so that the piston can slide in a piston guide provided in a housing. A drive shaft is supported in the housing (10) on which drive shaft a crank element is provided. A stroke ring is supported in rotary fashion on the crank element and the piston can be acted upon by the drive shaft by way of this stroke ring. In order to prevent high lateral forces on the piston, the piston is supported on the non-rotating stroke ring with a sliding surface disposed on it against an associated slide bearing surface, wherein lubrication grooves are let into the slide bearing surface, crosswise to the relative motion between the piston and the stroke ring.Type: GrantFiled: April 23, 1998Date of Patent: August 17, 1999Assignee: Robert Bosch GmbHInventors: Hans-Peter Stiefel, Karl Gmelin
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Patent number: 5939812Abstract: The invention relates to a collector machine, in particular an electric motor, having a rotor, rotatably supported in a housing and having an armature winding and a collector. The collector for electrically contacting the armature winding cooperates with at least two brushes resting slidingly on the collector, which are each displaceably guided counter to an initial tension in a respective quiver provided for each brush on a brush carrier plate. In accordance with the improvement according to the invention, at least one contact element, which is part of an associated quiver and for one pole of the electrical contacting establishes an electrically conductive contact with the housing.Type: GrantFiled: December 22, 1997Date of Patent: August 17, 1999Assignee: Robert Bosch GmbHInventor: Gerhard Wetzel
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Patent number: 5938070Abstract: A product dispenser which comprises a somewhat rectangular housing having front and rear walls, integral with a side wall, a top wall portion and a bottom wall portion and a removable side wall. The top wall is provided with a slot perpendicular with the side wall and the front wall has a slot therein. A product holder is fixed to the side wall in an area below the slot in the top wall. A take-up reel is secured on an axle molded to the fixed side walls below the fixed top portion. The take-up and dispenser reel includes outer flanges which extend below the side walls so that the flanges can roll on a surface below the side walls in order to take-up a backing sheet while simultaneously dispensing the product from the product holder. The removable side wall is removed to load the product in the product holder and to remove the backing sheet from the take-up reel. If there is no backing sheet, the product is fed via the slot in the top wall by hand in order to dispense the product.Type: GrantFiled: November 7, 1997Date of Patent: August 17, 1999Assignee: Woodrow W. WelbornInventors: Woodrow W. Welborn, David J. Buck
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Patent number: 5934572Abstract: A fuel injection valve for internal combustion engines having, a valve member, which is axially displaceable in a valve body and which on one end has a valve sealing face with which it cooperates with a stationary valve seat in order to control an injection cross section, and having at least one valve spring, which urges the valve member in the direction of the valve seat and is braced on its other end on a stationary stop. To increase the spring force of the valve spring while the outer diameter remains the same, the windings of the valve spring, embodied as a helical spring, have a circular basic cross section (Y), which in a region pointing radially outward from the axis (X) of the valve spring has a ground face oriented parallel to the spring axis (X).Type: GrantFiled: October 10, 1997Date of Patent: August 10, 1999Assignee: Robert Bosch GmbHInventors: Karl Hofmann, Peter Kuegel, Ibrahim Oezyesilova
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Patent number: 5934859Abstract: A device for handling syringe bodies stored in trays. The device has a transfer unit for the syringe bodies and a movable matrix that cooperates with it. Recesses for the syringe bodies are embodied in the transfer unit. To secure the syringe bodies in the recesses, the transfer unit has pins that are supported so they can rotate and are provided with securing catches. To press the tray away from the syringe bodies, in one embodiment of the invention, a number of press struts are disposed on the matrix. The device according to the invention has the advantage that the handling of the syringe bodies occurs very gently. Furthermore, the device can advantageously be coupled to a handling robot.Type: GrantFiled: October 6, 1997Date of Patent: August 10, 1999Assignee: Robert Bosch GmbHInventor: Bernd Goetzelmann
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Patent number: 5934767Abstract: An external energy source of a hydraulic motor vehicle power brake system, which has first and second valves that can be electrically controlled to adjust wheel brake pressures for wheel brakes, must be protected from being overloaded. To avoid the necessity for a safety valve, which has been used up to this point for protecting the external energy source, it is proposed that the first valve be embodied as a seat valve having a valve seat connected to the external energy source by means of an inlet opening disposed upstream, having a valve closing body associated with the valve seat, and having a closing spring that presses the valve closing body against the valve seat, which spring is dimensioned as a safety valve spring in a fashion according to the invention. In a reasonably priced manner, the first valve is used as a safety valve that protects the external energy source and on the other hand, for braking procedures, is used as a valve for adjusting wheel brake pressures.Type: GrantFiled: August 22, 1997Date of Patent: August 10, 1999Assignee: Robert Bosch GmbHInventors: Guenther Schmidt, Hermann Winner, Alain Gaillard
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Patent number: 5934152Abstract: An accelerator pedal modules for a motor vehicle which is actuated by the driver's foot. A sensor is disposed in a common housing together with other components, a restoring spring assembly, a kickdown mechanism and an end switch secured relative to the accelerator pedal and each other. The sensor is disposed in a separate housing, and by a suitable embodiment of the pedal lever, the accelerator pedal module can be adapted to a specific vehicle without modification of the sensor. This makes it possible to produce a standard sensor in large quantities. When the accelerator pedal module is activated the pedal activates the sensor which sends an electrical signal to a controller via electrical lines. The sensor includes a restoring spring which forces the pedal back to its normal rest position. The device includes a friction device which causes a friction in order to apply a force against momentum of the pedal. The controller controls an output of a driving engine.Type: GrantFiled: May 27, 1997Date of Patent: August 10, 1999Assignee: Robert Bosch GmbHInventors: Jorg Aschoff, Harry Fleig, Emil Pfetzer, Uwe Velte, Erik Maennle
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Patent number: 5931179Abstract: The invention relates to a hydraulic unit with a solenoid valve inserted into a receiving bore of a hydraulic block. With rigid fastening, the solenoid valve can rest under pressure against a circumference point of the receiving bore and when there is alternating stress on the solenoid valve during operation, the solenoid valve displaces material of the hydraulic block. In order to prevent this, a fastening device with a securing ring caulked in the receiving bore, includes a collar that is deformed into a circumferential groove of the solenoid valve leaving radial play.Type: GrantFiled: April 22, 1998Date of Patent: August 3, 1999Assignee: Robert Bosch GmbHInventors: Friedrich Megerle, Guenther Schnalzger, Martin Kirschner
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Patent number: 5931388Abstract: A fuel injection valve for internal combustion engines, having a valve member guided axially displaceably in a bore of a valve body. On an end of the valve member toward the combustion chamber, a valve sealing face is disposed, with which the valve member cooperates with a valve seat face on the valve body to control an injection cross section. At least one valve spring that acts upon the valve member and is inserted into a spring chamber is provided in a valve retaining body that is braced axially against the valve body. The spring chamber is closed on one end remote from the combustion chamber by a lid. The lid is secured to the valve retaining body by a crimped connection.Type: GrantFiled: June 25, 1997Date of Patent: August 3, 1999Assignee: Robert Bosch GmbHInventors: Guenter Loebenfelder, Gerhard Bauer, Bernd Kailing, Manfred Mack, Oliver Brygier
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Patent number: 5927322Abstract: A quantity regulation valve for controlling liquids in which a valve member can be moved by an electromagnet, permitting different through flow cross sections to be set so that a high pressure pump that is supplied with fuel via the quantity regulation valve can feed a variable quantity of high pressure fuel. At the same time, the valve member of the quantity regulation valve is equipped with a sealing face that cooperates with a valve seat for the purpose of absolutely preventing the high pressure fuel delivery.Type: GrantFiled: June 26, 1998Date of Patent: July 27, 1999Assignee: Robert Bosch GmbHInventor: Bernd Rosenau
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Patent number: 5927824Abstract: A vehicle hydraulic brake system having brake pressure modulation valve assemblies, between a dual-circuit master cylinder and wheel brakes of vehicle wheels. The pump device is embodied as a low-pressure pump with the brake pressure modulation valve assemblies be assigned a first and second return pump and that in the automatic braking mode the first pressure chamber is made to communicate with a first return pump and the second pressure chamber is made to communicate with the second return pump, on the inlet side in both cases. The low-pressure pump, in the automatic braking mode, generates charge pressure for the return pumps that is substantially below a maximum brake pressure, and the return pumps generate the maximum projected brake pressure and serve, in the additionally possible anti-lock mode, to return pressure fluid from the wheel brakes to the master cylinder.Type: GrantFiled: September 29, 1997Date of Patent: July 27, 1999Assignee: Robert Bosch GmbHInventors: Arnold Pahl, Wolf-Dieter Jonner, Norbert Alaze, Helmut Pueschel, Thomas Isella, Guenther Schmidt, Karl-Heinz Willmann, Rolf Hummel, Elmar Mueller, Johann Herr, Roland Holzmann, Guenter Dzierzawa, Martin Moehle, Guenter Krenz, Erika Mank, Hans-Juergen Herderich
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Patent number: 5929347Abstract: An apparatus for sampling dust in a duct for the purpose of knowing, in advance a need for cleaning the inside of such a narrow duct as can not be accessed internally by a person, the kinds of accumulations in the duct and the state of accumulation and sticking or the like. The apparatus comprises a traveling truck enabled to travel forwardly and backwardly in the duct, a TV camera mounted on the traveling truck in order to observe the inside of the duct, a sampling bucket attached to the front of the traveling truck in order to sample accumulations in the duct and a remote control portion for remotely controlling the traveling truck, the TV camera and the sampling bucket.Type: GrantFiled: March 21, 1997Date of Patent: July 27, 1999Assignees: Ataka Construction & Engineering, Kobe Mechatronics Co., Ltd.Inventors: Kenji Matsuura, Junichi Shiraishi
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Patent number: 5927714Abstract: A Tic-Tac-Toe slot machine having three parallel spaced reels. The reels are covered around their circumference with reel strips having spaced symbols of two different configurations such as "X" and "O" and blank. The X's and O's blanks are intermixed on each strip in an orderly fashion. Having three of the same symbols in an aligned row designates a winner. With a slot machine having a window that displays three rows of symbols there are eight possible winning rows. Three rows in different horizontal planes, three rows in vertical planes and from corner to corner in the form of an X. The slot machine can be played with from one to eight coins. For all possible winners one must play eight coins. The slot machine having the option of spinning a choice reel again to induce an interactive play. The slot machine is operated mechanically in the same manner as present day existing slot machines.Type: GrantFiled: February 10, 1998Date of Patent: July 27, 1999Inventor: Edward Kaplan
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Patent number: 5928465Abstract: The invention relates to a method and an apparatus for the production of a plate with depressions or apertures which is coated on at least one side. Plates of this kind are employed, for example, as passage-containing plates in hydraulic blocks for ABS/ASR/VDC systems, the depressions or apertures serving as passages or holes and the coating being a seal. In this invention the depressions or apertures are formed in an uncoated plate and then the plate is coated. As a result, the life of the machining tools is extended, the machining tolerances become smaller and the rate of machining can be increased.Type: GrantFiled: August 18, 1997Date of Patent: July 27, 1999Assignee: Robert Bosch GmbHInventor: Guenther Schmidt
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Patent number: 5924401Abstract: A security device in which a cap-shaped element is mounted covering essential functional and/or adjusting elements of a fuel delivery device. The cap-shaped element is connected to the parts of the fuel delivery device that it encloses in such a way that gaining access to the parts or to removing the cap-shaped element is only possible through destructive means and that when a particular destructive force is exceeded, a fracture occurs at a rated break point by means of which a functional or adjusting element or the defining wall that carries this element is fractured in relation to a fuel-carrying space of the fuel delivery device.Type: GrantFiled: January 14, 1998Date of Patent: July 20, 1999Assignee: Robert Bosch GmbHInventors: Claus Maier, Carlos Alvarez-Avila, Helmut Haberer
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Patent number: 5925224Abstract: A solvent containing low-boiling and high-boiling impurities in an evaporating section, so that the high-boiling impurities is left as a tank bottom waste, and a solvent vapor from the section is guide through a mist separator into a condenser. A condensate produced in the condenser is returned to the mist separator so as to serve as a mist catching liquid. A fraction not having condensed in the condenser is fed to a rectifying section where fractional condensation is performed so that the low-boiling impurities are condensed to be removed. A remainder of the solvent vapor from which the impurities have been removed is also condensed and recovered for reuse in the resist washing/exfoliating step during manufacture of liquid crystal devices or IC, so that the soiled solvent need not be discarded or treated in a remote cite, thereby facilitating the process or the step using the solvent.Type: GrantFiled: March 22, 1996Date of Patent: July 20, 1999Assignee: Sharp Kabushiki KaishaInventors: Kazuki Kobayashi, Kouji Matsuoka, Kensuke Yano, Norio Adachi, Tatsuo Takami, Hiroshi Morikawa
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Patent number: 5925820Abstract: A device for measuring the mass of a flowing medium aspirated by internal combustion engines is secured in an intake line. The device protrudes into the intake line with a measuring part that has a measuring conduit, and has a measuring element, accommodated in the measuring conduit (20), and facing in a direction of the flowing medium. The device is mounted in the intake line such that the measuring part with the measuring conduit is rotated by an angle a relative to the medium flowing in the intake line. The invention is contemplated for measuring the mass of a flowing medium, in particular for measuring the mass of air aspirated by internal combustion engines.Type: GrantFiled: June 25, 1997Date of Patent: July 20, 1999Assignee: Robert Bosch GmbHInventors: Dieter Tank, Uwe Konzelmann
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Patent number: 5923395Abstract: A method of manufacturing decorative plastic eyeglass elements. The steps of the method comprise dyeing a certain portion of the surface of a plastic eyeglass element with dispersion dye as a first dyeing step, forming aggregated groove patterns comprising a plurality of minute grooves formed on a part of the dyed portion of the plastic elements, and as a second dyeing step, dyeing at least the part of the aggregated groove patterns with dispersion dye having a color which is different from the color of the dispersion dye used in the first dyeing step.Type: GrantFiled: July 9, 1997Date of Patent: July 13, 1999Inventors: Shigeyoshi Yamaguchi, Eizo Onami
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Patent number: 5920009Abstract: In known methods for generating a predetermined constant pressure in a test liquid of a test apparatus, the test liquid is acted upon by compressed gas that is pumped continuously by a pump and is vented into the atmosphere once the test procedure is completed. This not only makes for an expensive consumption of compressed gas but also causes fluctuations in the pressurized liquid and generates noise. In this method, the pressurized liquid is pumped into a reservoir by a feed pump and in the process, via a movable wall, positively displaces compressed gas, which can flow back into a compressed gas container via an opened bypass shutoff valve, a bypass line, and a compressed gas shutoff valve. During the procedure of testing the specimen, the compressed gas from the compressed gas reservoir acts upon the test liquid with a constant pressure, regulated via the pressure regulating valve. The method is especially suitable for use in a test apparatus for testing injection valves and Diesel injection nozzles.Type: GrantFiled: December 22, 1997Date of Patent: July 6, 1999Assignee: Robert Bosch GmbHInventors: Thomas Enders, Marcus Fahnle