Patents by Inventor John F. Hehl, Sr.

John F. Hehl, Sr. 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).

  • Braking or clutching device
    Patent number: 8371423
    Abstract: An electric braking or clutching device includes a housing; an armature having an axis and disposed at the housing, the armature and the housing defining a radial air gap therebetween; and a coil configured to generate, when energized, a magnetic field at the housing and armature, a flux path of the field extending from the coil into the housing, from the housing into the armature, from the armature into the housing, and from the housing back to the coil, with the direction of the flux path from the armature into the housing being substantially radial in orientation.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: February 12, 2013
    Assignee: American Precision Industries, Inc.
    Inventor: John F. Hehl, Sr.
  • BRAKING OR CLUTCHING DEVICE
    Publication number: 20100155189
    Abstract: An electric braking or clutching device includes a housing; an armature having an axis and disposed at the housing, the armature and the housing defining a radial air gap therebetween; and a coil configured to generate, when energized, a magnetic field at the housing and armature, a flux path of the field extending from the coil into the housing, from the housing into the armature, from the armature into the housing, and from the housing back to the coil, with the direction of the flux path from the armature into the housing being substantially radial in orientation.
    Type: Application
    Filed: March 4, 2010
    Publication date: June 24, 2010
    Applicant: DANAHER MOTION
    Inventor: John F. Hehl, SR.
  • Braking or clutching device
    Patent number: 7717241
    Abstract: An electric braking or clutching device includes a housing; an armature having an axis and disposed at the housing, the armature and the housing defining a radial air gap therebetween; and a coil configured to generate, when energized, a magnetic field at the housing and armature, a flux path of the field extending from the coil into the armature, from the armature into the housing, and from the housing back to the coil, with the direction of the flux path from the armature into the housing being substantially radial in orientation.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: May 18, 2010
    Assignee: American Precision Industries, Inc.
    Inventor: John F. Hehl, Sr.