Patents by Inventor Niranjan K. Doshi

Niranjan K. Doshi 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).

  • Power-converting device
    Patent number: 4167375
    Abstract: A power-converting device has a generally-elliptical rotor which is mounted within a generally-cylindrical chamber. That rotor reciprocates as it rotates within that chamber; and interacting surfaces which are wholly separate from, displaced bodily away from, and in addition to the shaft of that power-converting device halt continued movement of that rotor whenever it reaches an end of its path of reciprocation, and then smoothly start that rotor moving back toward the opposite end of that path of reciprocation.
    Type: Grant
    Filed: October 27, 1977
    Date of Patent: September 11, 1979
    Assignee: Frank Apostol
    Inventor: Niranjan K. Doshi