Patents by Inventor Fritz Hofmann

Fritz Hofmann 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: 5433123
    Abstract: A measuring and transmitting system of measuring signals for the deflection of an interior frame angle of a position gyro cardanically mounted in an exterior housing, in which the position gyro has an interior frame and an exterior frame, is provided with a gyro rotor and a permanent magnet in the gyro rotor. The permanent magnet forms a signal generator of the interior frame, and has a magnetic field generator center. A plurality of measuring coils form a signal receiver formed on the exterior frame, the measuring coils having measuring axes aligned in parallel to one another and eccentrically with respect to the magnetic field generator center. An analysis unit is connected behind the measuring coils and performs a measuring signal analysis.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: July 18, 1995
    Assignee: Deutsche Aerospace AG
    Inventors: Fritz Hofmann, Ernst Gruber
  • Patent number: 5385052
    Abstract: An inertial sensor for measuring changes in rotational motion of a sensor support, having a flywheel rotationally movable in the plane of rotational motion relative to the sensor support and a measured value sensor picking up the rotational state of the flywheel relative to the sensor support. A torque coupler is provided between the sensor support and flywheel. The torque coupler has a torque curve that is a linear function of the relative angular velocity between the flywheel and the sensor support. The measured value sensor is designed as an angular position detector that taps off the rotational angle of the flywheel relative to the sensor support.
    Type: Grant
    Filed: October 19, 1992
    Date of Patent: January 31, 1995
    Assignee: Deutsche Aerospace AG
    Inventor: Fritz Hofmann
  • Patent number: 5126606
    Abstract: Electric drive motor, especially for control and regulation purposes, with a pole and coil arrangement for generating a rotating or linearly advancing armature field, which contains pole-forming segments in a plurality of tracks, staggered over time in their excitation phases and geometrically in the direction of movement. The segments are individual segments or are associated with a plurality of coils (without overlapping). Closely stepped tripping. A preferred embodiment of a synchronous motor, such as a hysteresis motor, is described and represented.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: June 30, 1992
    Assignee: Messerschmitt-Bolkow-Blohm GmbH
    Inventor: Fritz Hofmann
  • Patent number: 4901565
    Abstract: A strapdown measuring unit for measuring the angular velocities about the three axes of a flying body rotating relatively fast about its first axis is disclosed. The unit combines a Sagnac effect sensor for roll rate determination and two micro-mechanical acceleration sensors whose output, combined mathematically with the output of the Sagnac effect sensor, determines the angular velocity of the remaining two axes. The mathematical calculations are performed by a dedicated microprocessor which is integrated with the three sensors into a single small unit.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: February 20, 1990
    Assignee: Messerschmitt-Bolkow-Blohm GmbH
    Inventors: Helmut Seidel, Fritz Hofmann
  • Patent number: 4736830
    Abstract: To provide for low-noise, low-shock operation, transport plates which, preferably, are essentially square and have, on two adjacent sides, recessed elastic material (31), the opposite sides being formed with projections to engage against the elastic material. A transport belt arrangement, having two spaced belts, moves the transport plates continuously. If a transport plate is to be arrested at a work station (WS), a presser plate (5) is lifted upwardly, preferably by a piston-cylinder unit (8) to lift the transport plate off the belts and engage the presser plate with a stationary, preferably three-point counter bearing (28), with sufficient holding force to provide a back-up for working tools, for example a drill press, boring machine or the like, operating on a work piece (23) secured to the transport plate.
    Type: Grant
    Filed: September 3, 1986
    Date of Patent: April 12, 1988
    Assignee: Maschinenfabrik AG Menziken
    Inventor: Fritz Hofmann
  • Patent number: 4248656
    Abstract: A device for manufacturing laminated insulating glass plate bonded by adhesive, comprising a supporting table adapted for receiving glass sheets and interspaced spacer frames covered with an adhesive or adapted for soldering. A compression plate is arranged for lifting and lowering movement above the supporting table and is provided with a suction arrangement for raising a glass sheet and compressing it against a spacer frame glass sheet preassembly delivered on the supporting table. The device further comprises a feeding track, a washing device and a device for assembling the spacer frames.
    Type: Grant
    Filed: May 16, 1978
    Date of Patent: February 3, 1981
    Assignee: Glasmatec AG
    Inventor: Fritz Hofmann
  • Patent number: 4075701
    Abstract: A method and circuit arrangement for changing the sensitivity of the measng range in a device employing delta modulation in a navigation system. The device uses an integrator for integrating a measured value from a sensor, a threshold detector following the integrator, a synchronizer responsive to the threshold detector and a pulse transmitter driven by the synchronizer. The pulse transmitter provides a reset pulse with appropriate release time to reset the integrator, the reset pulse being counted by a counter fed to a navigation computer. A switching arrangement at the input of the integrator operates to change the sensitivity or scale factor. Switching is controlled by logic circuitry which responds to the level of the measured value as well as the output of the integrator. The reset pulse release time is also employed as a switching criterion.
    Type: Grant
    Filed: February 3, 1976
    Date of Patent: February 21, 1978
    Assignee: Messerschmitt-Bolkow-Blohm Gesellschaft mit beschrankter Haftung
    Inventor: Fritz Hofmann