Patents by Inventor Walter Fleischer

Walter Fleischer 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).

  • Patent number: 6895999
    Abstract: The invention proposes a solenoid valve (10), in particular for automatic transmissions of motor vehicles. Solenoid valves (10) have the problem of vibrations that detract from shifting comfort. Integrating a throttle restriction (52) into the solenoid valve (10) on the part of the solenoid valve (10) oriented toward the consumer as proposed by the invention makes it possible to efficiently reduce such vibrations. In addition, the production costs are low, in particular because the throttle restriction (52) is provided In a filter cage (44) of the solenoid valve (10).
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: May 24, 2005
    Assignee: Robert Bosch GmbH
    Inventors: Walter Fleischer, Wolfgang Rudolf, Christof Ott, Juergen Semler, Martin Krohn, Bernd Huber, Jens Dorfschmid
  • Publication number: 20040173269
    Abstract: The invention proposes a solenoid valve (10), in particular for automatic transmissions of motor vehicles. Solenoid valves (10) have the problem of vibrations that detract from shifting comfort. Integrating a throttle restriction (52) into the solenoid valve (10) at the end oriented toward the consumer as proposed by the invention makes it possible to efficiently reduce such vibrations. In addition, the production costs are low, in particular because the throttle restriction (52) is provided in a filter cage (44) of the solenoid valve (10).
    Type: Application
    Filed: December 4, 2003
    Publication date: September 9, 2004
    Inventors: Walter Fleischer, Wolfgang Rudolf, Christof Ott, Juergen Semler, Martin Krohn, Bernd Huber, Jens Dorfschmid
  • Patent number: 6719006
    Abstract: The invention is based on an apparatus (10) for regulating the pressure in a hydraulic circuit that comprises an electrically triggerable pressure-control valve (12), a receptacle device (14) in which the pressure-control valve (12) is installed, and means (54, 64) for damping pressure pulsations. In order to save space, simplify the manufacture of the receptacle device (14), and save additional holding elements, it is proposed according to the invention that the means (54, 64) for damping pressure pulsations be designed as integral components of the pressure-control valve (12).
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: April 13, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Walter Fleischer, Werner Schmid, Christof Ott
  • Publication number: 20020134228
    Abstract: The invention is based on an apparatus (10) for regulating the pressure in a hydraulic circuit that comprises an electrically triggerable pressure-control valve (12), a receptacle device (14) in which the pressure-control valve (12) is installed, and means (54, 64) for damping pressure pulsations. In order to save space, simplify the manufacture of the receptacle device (14), and save additional holding elements, it is proposed according to the invention that the means (54, 64) for damping pressure pulsations be designed as integral components of the pressure-control valve (12).
    Type: Application
    Filed: April 29, 2002
    Publication date: September 26, 2002
    Inventors: Walter Fleischer, Werner Schmid, Christof Ott
  • Patent number: 5829122
    Abstract: A method of producing an electromagnetic valve includes deep drawing of a magnet housing, arranging a magnet coil, a magnet core and a plunger connected with an armature in the magnet housing, connecting a valve closing element which has a valve element for controlling a pressure medium flow, with the magnet housing by flanging a flared flange with a shoulder of the magnet housing relative to the valve closing element, and producing both the flared flange and the shoulder during the deep drawing of the magnet housing in a non-material-removing deformation step.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: November 3, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Horst Keuerleber, Werner Brehm, Walter Fleischer, Kurt Gensheimer
  • Patent number: 5636828
    Abstract: A magnet core (14) which is penetrated by a tappet (35) guided in a bearing (38) is arranged in the interior (12) of an electromagnetic valve (10). A connection element (45) comprising plastic and having an integrally arranged valve seat (46) is injection molded onto the underside of the magnet core (14). As a result of the design and arrangement of the connection element (45) and bearing (38), the producibility of the electromagnetic valve (10) is simplified and its functional properties are improved.
    Type: Grant
    Filed: September 5, 1995
    Date of Patent: June 10, 1997
    Assignee: Robert Bosch GmbH
    Inventors: Werner Brehm, Walter Fleischer
  • Patent number: 5617890
    Abstract: An electromagnetically operable pressure-regulating valve is proposed, in whose valve connection element (40) there is configured a choke bore (57, 57a to 57c). The choke bore (57, 57a to 57c), which operates hydraulically like a choke, facilitates the balancing of the pressure-regulating valve in the hydraulic system and produces a characteristic curve of the pressure-regulating valve which is virtually temperature-independent.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 8, 1997
    Assignee: Robert Bosch GmbH
    Inventors: Werner Brehm, Walter Fleischer
  • Patent number: 5615860
    Abstract: An electromagnetic valve, in particular pressure regulating valve for automatic transmissions of motor vehicles comprises a magnet housing, a valve closing element arranged in the magnet housing and having a longitudinal opening and control edges, a valve slider located in the longitudinal opening and having control portions cooperating with the control edges with the valve closing element, the valve closing element being formed as a die cast part and the control edges being formed as a pocket-shaped depressions extending from an outer periphery.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: April 1, 1997
    Assignee: Robert Bosch GmbH
    Inventors: Werner Brehm, Walter Fleischer
  • Patent number: 5165148
    Abstract: Toggle clamps with bifurcated handle actuated to aligned toggle element clamping position with manually releasible latch lock lever pivotally mounted between handle sides resiliently engaging base mounted catch upon handle reaching toggle alignment.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: November 24, 1992
    Assignee: Delaware Capital Formation, Inc.
    Inventors: Walter Fleischer, Henry Dykstra