Patents by Inventor Herbert A. Schwan

Herbert A. Schwan 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: 11953173
    Abstract: An illumination apparatus for vehicles having a light source, a support plate for receiving the light source, and an optical unit arranged in front of the light source in the main emission direction to deflect light emitted by the light source onto a roadway in front of the vehicle in accordance with a predetermined light distribution. The light source has a light-emitting surface and a light source frame surrounding the same. The light source is surrounded by a shielding frame with a wall that is raised in the main emission direction and encloses an intermediate space between the light source and the optical unit.
    Type: Grant
    Filed: April 21, 2023
    Date of Patent: April 9, 2024
    Assignee: Hella GmbH & CO. KGAA
    Inventors: Herbert Cramer, Florian Herold, Christian Schimon, Alexander Schwan, Dirk Schwemin
  • Patent number: 4614944
    Abstract: A telemetry system for a plurality of distributed equipment controls and/or equipment monitors that does not require complex masses of wires. The telemetry system includes an output channel for communicating control signals to the equipment controls and/or an input channel for communicating monitored signals from the equipment monitors. The output channel includes a first block of transmitter register stages for receiving a set of control signals from a controller; and a second block of distributed, series-connected parallel-output control register stages connected in series with the first block for receiving the control signals in series from the first block, and respectively positioned at the equipment controls for connection to the equipment controls for providing the control signals to the equipment controls.
    Type: Grant
    Filed: July 24, 1985
    Date of Patent: September 30, 1986
    Assignee: Teleplex Corporation
    Inventor: Herbert A. Schwan
  • Patent number: 4604682
    Abstract: A buffer system for interfacing an intermittently accessing data processor to a communications system in which the transfer of data bits is clocked at a predetermined rate in response to clock pulses provided by a communications system clock signal. The system includes a random access memory (RAM) for storing input signal data bytes received from an input communications channel of the communications system and for storing output signal data bytes for transmission to an output communications channel of the communications system; and a port interface section that is responsive to the system clock signal for serially receiving and transmitting input signal data bytes from the input channel, for storing output signal data bytes to the output channel and for providing a flag signal to demarcate the data bytes.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: August 5, 1986
    Assignee: Teleplex Corporation
    Inventors: Herbert A. Schwan, Eduard A. Schwan
  • Patent number: 4364386
    Abstract: Apparatus controls the maximum pressure of the fluid which can flow through a pump. The apparatus includes a disposable unit with an inlet for receiving fluid from a source, an outlet for transferring the fluid to a patient and a chamber communicating between the inlet and the outlet. A diaphragm across the chamber is constrained in accordance with the pressure of the fluid in the chamber. The diaphragm transmits the constraint to a stiffener.The disposable unit is removably attached to the pump casing. A knob is externally disposed on the pump casing and is adjustable to control the maximum force of the fluid in the disposable unit. The knob controls the force exerted on biasing means in a first direction. A force is also exerted against the biasing means in a second direction opposite to the first direction. This force is dependent upon the force on the stiffener.The biasing means may include a spring.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: December 21, 1982
    Assignee: Imed Corporation
    Inventors: Jon A. Jenkins, Herbert A. Schwan