Patents by Inventor Robert E. Wehrheim

Robert E. Wehrheim 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).

  • Dryer motor and control
    Patent number: 9228292
    Abstract: A drying device has been developed having a single electric motor configured to drive a drum and directly drive an air blower. The single electric motor is a non-line frequency electric motor. The drum is coupled to a support frame to enable rotation of the drum relative the support frame. The drum has an interior space for holding a load of articles, such as clothing. The motor includes a controller configured to regulate the angular velocity of the output shaft of the motor with reference to the current drawn by the motor.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: January 5, 2016
    Assignee: Nidec Motor Corporation
    Inventors: Robert E. Wehrheim, Keith I. Hoemann, Gregory A. Peterson, L. Ranney Dohogne, Marshall J. Huggins, Gregory M. Levine
  • Dryer Motor and Control
    Publication number: 20140109429
    Abstract: A drying device has been developed having a single electric motor configured to drive a drum and directly drive an air blower. The single electric motor is a non-line frequency electric motor. The drum is coupled to a support frame to enable rotation of the drum relative the support frame. The drum has an interior space for holding a load of articles, such as clothing. The motor includes a controller configured to regulate the angular velocity of the output shaft of the motor with reference to the current drawn by the motor.
    Type: Application
    Filed: December 20, 2013
    Publication date: April 24, 2014
    Applicant: NIDEC MOTOR CORPORATION
    Inventors: Robert E. Wehrheim, Keith I. Hoemann, Gregory A. Peterson, L. Ranney Dohogne, Marshall J. Huggins, Gregory M. Levine
  • Dryer motor and control
    Patent number: 8615897
    Abstract: A drying device has been developed having a single electric motor configured to drive a drum and directly drive an air blower. The single electric motor is a non-line frequency electric motor. The drum is coupled to a support frame to enable rotation of the drum relative the support frame. The drum has an interior space for holding a load of articles, such as clothing. The motor includes a controller configured to increase gradually the angular velocity of the drum to provide a “soft start” for the dryer.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: December 31, 2013
    Assignee: Nidec Motor Corporation
    Inventors: Robert E. Wehrheim, Keith I. Hoemann, Gregory A. Peterson, L. Ranney Dohogne, Marshall J. Huggins, Gregory M. Levine
  • Dryer Motor and Control
    Publication number: 20110010961
    Abstract: A drying device has been developed having a single electric motor configured to drive a drum and directly drive an air blower. The single electric motor is a non-line frequency electric motor. The drum is coupled to a support frame to enable rotation of the drum relative the support frame. The drum has an interior space for holding a load of articles, such as clothing. The motor includes a controller configured to increase gradually the angular velocity of the drum to provide a “soft start” for the dryer.
    Type: Application
    Filed: July 16, 2009
    Publication date: January 20, 2011
    Applicant: Emerson Electric Co.
    Inventors: Robert E. Wehrheim, Keith I. Hoemann, Gregory A. Peterson, L. Ranney Dohogne, Marshall J. Huggins, Gregory M. Levine
  • One-piece drive pulley and belt guide
    Patent number: 7204774
    Abstract: In one-piece combination, a drive pulley and belt guide for a belt-driven machine. The pulley has a belt-driving section configured for engagement by the belt and a belt-guiding section integral with the belt-driving section. The belt-guiding section has a conically-tapering external surface and an internal surface which is substantially free of reinforcing members and defines a hollow, cup-shaped interior free from structure within the interior.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: April 17, 2007
    Assignee: Emerson Electric Co.
    Inventors: L. Ranney Dohogne, Robert E. Wehrheim, Mark A. Fry, Walter A. Stribling