Patents by Inventor Alan Pelczyk

Alan Pelczyk 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).

  • Displacement measuring transducer
    Patent number: 4353050
    Abstract: A displacement-measuring transducer has a laminar member displaceable, for example under control of a vacuum actuator, within a housing containing respective pairs of coils spaced part in the displacement direction of the laminar member, which is provided with two apertures spaced apart in the said direction, such that the coupling between the coils of each pair is dependent upon the position of said apertures and, therefore, on the displacement of the laminar member.
    Type: Grant
    Filed: June 13, 1980
    Date of Patent: October 5, 1982
    Assignee: Ranco Incorporated
    Inventors: Alan Pelczyk, Robert F. Purssell, Alfred J. Woollard, Albert L. Fowler, David M. Walker, Alan G. Henderson, Alastair K. Stevenson