Patents by Inventor Steven D. Johann

Steven D. Johann 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).

  • Fluid pump having floating reciprocating shaft
    Patent number: 5286177
    Abstract: A reciprocating fluid pump having a shaft which dynamically self-corrects angular misalignment between the shaft and its drive mechanism during reciprocative motions. A thrust bearing is utilized to take up axial loading of the shaft to allow the shaft to freely rotate on its supports.
    Type: Grant
    Filed: December 10, 1991
    Date of Patent: February 15, 1994
    Assignee: Beckman Instruments, Inc.
    Inventor: Steven D. Johann
  • Floating reciprocating shaft
    Patent number: 5152188
    Abstract: A reciprocating shaft which dynamically self-corrects angular misalignment between the shaft and its drive mechanism during reciprocative motions. A thrust bearing is utilized to take up axial loading of the shaft to allow the shaft to freely rotate on its supports.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: October 6, 1992
    Assignee: Beckman Instruments, Inc.
    Inventor: Steven D. Johann