Patents by Inventor Karl H. Wallischeck

Karl H. Wallischeck 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).

  • Servo actuator diagnostic monitoring
    Patent number: 5422553
    Abstract: The output response of a pilot valve controlled servo 10 is monitored by a computer 20 using a transducer 16 on the main control valve 12 and a transducer 11 on the servo output 10a. The response is compared by determining the predicted output response and response time from a mathematical model for the servo, and if the response or response time is incorrect, a warning indication is provided.
    Type: Grant
    Filed: December 4, 1984
    Date of Patent: June 6, 1995
    Assignee: United Technologies Corporation
    Inventors: Roderick MacLennan, Karl H. Wallischeck
  • Fluid flow regulator valve
    Patent number: 4278010
    Abstract: A fluid flow regulator valve to regulate flow to a fluid driven prime mover wherein a selectively shaped, spring biased spool is positioned within a cylinder and has a sensor orifice therein to establish a pressure drop thereacross in response to controlled fluid flow rate and hence cause the spool to move within the cylinder to control both the metering orifice to and the return orifice from the flow conduit which connects the cylinder to the prime mover.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: July 14, 1981
    Assignee: United Technologies Corporation
    Inventors: Karl H. Wallischeck, James H. Smith
  • Jam proof piston
    Patent number: 4211151
    Abstract: An improved jam-proof control including a cylinder-piston assembly in which the piston is controllably positioned within the cylinder to perform the control function and in which the piston rod which extends through the cylinder wall is enveloped by a deformable sleeve so that when the piston rod is deformed by sharp impact, the piston rod is permitted to continue to reciprocate within the housing due to the deformation, either due to frangibility or softness, of the piston rod sleeve.
    Type: Grant
    Filed: November 14, 1978
    Date of Patent: July 8, 1980
    Assignee: United Technologies Corporation
    Inventor: Karl H. Wallischeck