Patents by Inventor David Suminski

David Suminski 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 having convex high-speed brush
    Patent number: 7265475
    Abstract: A two speed direct current electric motor comprising: an armature having a commutator assembly that is adapted to receive an electromotive force to cause the armature to operatively rotate. A brush assembly having a common brush and a low-speed brush is disposed about and in electrical communication with the commutator to provide a first electromotive force to cause the armature to provide a low-speed rotational output. The brush assembly further includes a high-speed brush having a convex shaped end in physical and electrical communication with the commutator to provide a second electromotive force to cause the armature to provide a high-speed rotational output. The convex shaped end of the high-speed brush is further adapted to wear to take the shape of the commutator such that as the high-speed brush wears the high-speed rotational output decreases.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: September 4, 2007
    Assignee: Trico Products Corporation
    Inventor: David Suminski
  • Electric motor having convex high-speed brush
    Publication number: 20050218750
    Abstract: A two speed direct current electric motor comprising: an armature having a commutator assembly that is adapted to receive an electromotive force to cause the armature to operatively rotate. A brush assembly having a common brush and a low-speed brush is disposed about and in electrical communication with the commutator to provide a first electromotive force to cause the armature to provide a low-speed rotational output. The brush assembly further includes a high-speed brush having a convex shaped end in physical and electrical communication with the commutator to provide a second electromotive force to cause the armature to provide a high-speed rotational output. The convex shaped end of the high-speed brush is further adapted to wear to take the shape of the commutator such that as the high-speed brush wears the high-speed rotational output decreases.
    Type: Application
    Filed: March 25, 2005
    Publication date: October 6, 2005
    Inventor: David Suminski