Patents by Inventor Johannes Anthonius Maria Spapens

Johannes Anthonius Maria Spapens 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).

  • Flexible shaft coupling
    Patent number: 3987645
    Abstract: A flexible shaft coupling consisting of a rigid plate, and shaft connection segments connected to the plate by elongated resilient tongues. The coupling is formed by cut-outs from a solid plate. Besides angle errors of the shafts to be coupled, this shaft coupling also takes up eccentricity errors and displacement in the axial direction, and forms a play-free homokinetic connection between two shafts. A comparatively high torsional rigidity of the shaft coupling is ensured.
    Type: Grant
    Filed: January 7, 1975
    Date of Patent: October 26, 1976
    Assignee: U.S. Philips Corporation
    Inventors: Marinus Pieter Koster, Johannes Anthonius Maria Spapens