Patents Assigned to Herman Rossman
  • Patent number: 4217541
    Abstract: A method and a device which are dependently and cojointly employed in the accurate control of the increase and decrease of alternating current, direct current, and concomitant electrical current extending through circuitry and passing to and through electrical devices, electrical appliances, electrical equipment, electrical motors, and electrical apparatuses which are connected to the innovative device.
    Type: Grant
    Filed: May 18, 1977
    Date of Patent: August 12, 1980
    Assignee: Herman Rossman
    Inventors: Morton Weintraub, Elliot Waxman, Bernard Gendelman