Patents by Inventor Michael David Calvert

Michael David Calvert 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).

  • Electric motor or generator with a low friction touch-down area
    Patent number: 8664818
    Abstract: An electric motor or generator having a stator with stator teeth for mounting electrical coils and a rotor, wherein the stator has a first surface that is parallel to an axis of rotation of the rotor and is axially separated from the stator teeth and the rotor has a second surface that is formed in substantially the same axial position as the stator s first surface, wherein material is mounted on the first surface or the second surface that has a lower frictional coefficient than the first surface or second surface.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: March 4, 2014
    Assignee: Protean Electric Ltd.
    Inventor: Michael David Calvert
  • Electric Motor or Generator
    Publication number: 20130069462
    Abstract: An electric motor or generator having a stator with stator teeth for mounting electrical coils and a rotor, wherein the stator has a first surface that is parallel to an axis of rotation of the rotor and is axially separated from the stator teeth and the rotor has a second surface that is formed in substantially the same axial position as the stator s first surface, wherein material is mounted on the first surface or the second surface that has a lower frictional coefficient than the first surface or second surface.
    Type: Application
    Filed: September 29, 2010
    Publication date: March 21, 2013
    Applicant: PROTEAN ELECTRIC
    Inventor: Michael David Calvert