Patents by Inventor Stefan Holl

Stefan Holl 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: 10802123
    Abstract: An ultrasound probe may include a mechanical transducer and a probe housing. The mechanical transducer may be rotatable about an axis. The mechanical transducer may be operable to acquire ultrasound image data at one or more rotational positions of a plurality of rotational positions. The probe housing may include a probe cap covering the mechanical transducer. The mechanical transducer may be directed toward the probe cap at each of the plurality of rotational positions. The probe cap may include a defined structure having a first thickness and a remainder portion having a second thickness different than the first thickness. In various embodiments, at least a portion of the defined structure is at a center section of the probe cap corresponding with a center rotational position of the mechanical transducer.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: October 13, 2020
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Stefan Holl, Franz Steinbacher
  • Publication number: 20190107612
    Abstract: An ultrasound probe may include a mechanical transducer and a probe housing. The mechanical transducer may be rotatable about an axis. The mechanical transducer may be operable to acquire ultrasound image data at one or more rotational positions of a plurality of rotational positions. The probe housing may include a probe cap covering the mechanical transducer. The mechanical transducer may be directed toward the probe cap at each of the plurality of rotational positions. The probe cap may include a defined structure having a first thickness and a remainder portion having a second thickness different than the first thickness. In various embodiments, at least a portion of the defined structure is at a center section of the probe cap corresponding with a center rotational position of the mechanical transducer.
    Type: Application
    Filed: October 5, 2017
    Publication date: April 11, 2019
    Inventors: Stefan Holl, Franz Steinbacher
  • Patent number: 9504445
    Abstract: An ultrasound imaging system and method includes acquiring motion data from a motion sensing system on a probe while acquiring ultrasound data with the probe. The system and method includes acquiring probe motion data with a motion sensing system, acquiring probe position data with a position sensing system and calculating a drift compensation using the probe motion data and the probe position data.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: November 29, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Stefan Holl, Stefan Denk, Thomas Holl, Bernd Arminger
  • Publication number: 20140243671
    Abstract: An ultrasound imaging system and method includes acquiring motion data from a motion sensing system on a probe while acquiring ultrasound data with the probe. The system and method includes acquiring probe motion data with a motion sensing system, acquiring probe position data with a position sensing system and calculating a drift compensation using the probe motion data and the probe position data.
    Type: Application
    Filed: February 28, 2013
    Publication date: August 28, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Stefan Holl, Stefan Denk, Thomas Holl, Bernd Arminger
  • Publication number: 20130053697
    Abstract: An ultrasound imaging system, an ultrasound probe, and a method for detecting motion of an ultrasound probe with a motion sensor attached to the probe. The ultrasound system, ultrasound probe, and method also include reducing a power consumption of the ultrasound probe in response to detecting no motion for a period of time with the motion sensor.
    Type: Application
    Filed: August 22, 2011
    Publication date: February 28, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Stefan Holl, Thomas Holl, Thomas Rittenschober, Bernd R. Arminger
  • Patent number: 7216669
    Abstract: A pressure regulating valve for regulating the pressure in a common rail with a pistonlike valve member which is guided axially displaceably in a bore and acts in the closing direction on a closing element and presses it against a valve seat; the valve member forms an armature of an electromagnet to which electrical current can be supplied. The opening cross section of the inlet of the pressure regulating valve is designed such that the pressure regulating valve cannot be opened until beyond a predetermined minimum fuel pressure greater than or equal two 250 bar. In this way, even if the electromagnetic closing force fails, a minimum pressure at the valve outlet is generated and thus makes an injection event possible.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: May 15, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Christian Braeuer, Stefan Holl
  • Patent number: 7165756
    Abstract: A pressure regulating valve for regulating the pressure in a common rail, having a pistonlike valve member which is axially displaceably guided in a bore and acts on a closing element that can be pressed against a valve seat, and the valve member forms an armature of an electromagnet, to which current can be supplied. The minimal spacing between the armature and the valve housing is adjustable. In this way, the setting of the closing force of the valve can be done in the preassembled state.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: January 23, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Christian Braeuer, Stefan Holl
  • Publication number: 20060272617
    Abstract: A pressure regulating valve for a reservoir-type fuel injection system for internal combustion engines serves to regulate the pressure in a fuel reservoir (common rail). The pressure regulating valve is designed in simplified form; the fuel reservoir is embodied as a closed reservoir and its supply and return lines are disposed inside a liquid level in such a way that without further action by the pressure regulating valve, it is not possible for the fuel reservoir to run empty.
    Type: Application
    Filed: March 31, 2004
    Publication date: December 7, 2006
    Inventors: Christian Braeuer, Stefan Holl
  • Patent number: 7080818
    Abstract: A pressure regulating valve, for regulating the pressure in a common rail, having a pistonlike valve member guided axially displaceably in a bore, which valve member acts on a closing element which can be pressed against a valve seat, and the valve member forms an armature of an electromagnet that can be supplied with current. The armature of the electromagnet is embodied as a permanent magnet, or the electromagnet surrounding the armature is connected to a permanent magnet likewise acting on the armature, so that even in the state without current, a magnetic force acts on the valve member. In this way, even in the event of a failure of the electromagnetic regulation, a pressure is generated at the valve outlet. In the state when current is supplied, the closing force of the valve can be regulated over the entire pressure range.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: July 25, 2006
    Assignee: Robert Bosch GmbH
    Inventors: Christian Braeuer, Stefan Holl
  • Publication number: 20050166898
    Abstract: A fuel injection system for an internal combustion engine and to a cylinder head for such a fuel injection system, in which a central fuel reservoir is provided between a feed pump and a plurality of injectors to be supplied with fuel, which each communicate with the central fuel reservoir via respective high-pressure lines, and the injectors are mounted in a cylinder head of the engine for injecting fuel into a plurality of combustion chambers, and the fuel reservoir and/or the high-pressure lines are at least partly integrated into the cylinder head of the engine.
    Type: Application
    Filed: March 18, 2003
    Publication date: August 4, 2005
    Inventors: Christian Braeuer, Stefan Holl
  • Publication number: 20050079029
    Abstract: Screw elements used in screw connections are embodied in such a way that the incident notch tensions are distributed as uniformly as possible over the entire length of the screw. One of the screw elements involved in the screw connection has a thread pitch (G1) which over at least a portion of the screw fastening length differs from the thread pitch (G2) in the remainder of the screw fastening length.
    Type: Application
    Filed: August 30, 2004
    Publication date: April 14, 2005
    Inventors: Christian Braeuer, Stefan Holl
  • Publication number: 20050056802
    Abstract: A pressure regulating valve for regulating the pressure in a common rail, having a pistonlike valve member which is axially displaceably guided in a bore and acts on a closing element that can be pressed against a valve seat, and the valve member forms an armature of an electromagnet, to which current can be supplied. The minimal spacing between the armature and the valve housing is adjustable. In this way, the setting of the closing force of the valve can be done in the preassembled state.
    Type: Application
    Filed: September 15, 2004
    Publication date: March 17, 2005
    Inventors: Christian Braeuer, Stefan Holl
  • Publication number: 20050056801
    Abstract: A pressure regulating valve, for regulating the pressure in a common rail, having a pistonlike valve member guided axially displaceably in a bore, which valve member acts on a closing element which can be pressed against a valve seat, and the valve member forms an armature of an electromagnet that can be supplied with current. The armature of the electromagnet is embodied as a permanent magnet, or the electromagnet surrounding the armature is connected to a permanent magnet likewise acting on the armature, so that even in the state without current, a magnetic force acts on the valve member. In this way, even in the event of a failure of the electromagnetic regulation, a pressure is generated at the valve outlet. In the state when current is supplied, the closing force of the valve can be regulated over the entire pressure range.
    Type: Application
    Filed: September 15, 2004
    Publication date: March 17, 2005
    Inventors: Christian Braeuer, Stefan Holl
  • Publication number: 20050022791
    Abstract: A pressure regulating valve for regulating the pressure in a common rail, having a pistonlike valve member guided axially displaceably in a bore, which valve member acts in the closing direction on a closing element and presses it against a valve seat, and the valve member forms an armature of an electromagnet that can be supplied with electric current. The valve is additionally equipped with a mechanical spring, which likewise presses the valve member in the direction of the valve seat, and whose spring constant is designed such that the valve cannot be opened until beyond a predetermined minimum fuel pressure of greater than or equal to 250 bar. In this way, even in the event that the electromagnetic closing force should fail, a minimum pressure at the valve outlet is generated and thus an injection event is made possible.
    Type: Application
    Filed: July 27, 2004
    Publication date: February 3, 2005
    Inventors: Christian Braeuer, Stefan Holl
  • Publication number: 20050022875
    Abstract: A pressure regulating valve for regulating the pressure in a common rail with a pistonlike valve member which is guided axially displaceably in a bore and acts in the closing direction on a closing element and presses it against a valve seat; the valve member forms an armature of an electromagnet to which electrical current can be supplied. The opening cross section of the inlet of the pressure regulating valve is designed such that the pressure regulating valve cannot be opened until beyond a predetermined minimum fuel pressure greater than or equal two 250 bar. In this way, even if the electromagnetic closing force fails, a minimum pressure at the valve outlet is generated and thus makes an injection event possible.
    Type: Application
    Filed: July 27, 2004
    Publication date: February 3, 2005
    Inventors: Christian Braeuer, Stefan Holl
  • Publication number: 20040111871
    Abstract: A method is disclosed for adjusting a spacing within a magnetic circuit, in particular the spacing between a magnet armature and a magnet core, in which the magnet armature has an armature plate and an armature bolt which are joined together in a relative position, characterized in that after the mounting of the magnet armature comprising the armature plate and armature bolt, the relative position between the armature plate and the armature bolt is adjusted, in the context of a pressing operation, to a first defined size or a second defined size.
    Type: Application
    Filed: December 8, 2003
    Publication date: June 17, 2004
    Inventors: Christian Braeuer, Stefan Holl