Patents by Inventor Hanford L. Eckman

Hanford L. Eckman 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).

  • Retrofittable glass-top electric stove element
    Patent number: 5780817
    Abstract: Electrical resistance retrofittable stove heating elements are provided which include a metal oxide-containing cooking top and a sheathed resistance heating element spaced from the lower surface of the cooking top. The stove element can also contain a housing bowl disposed below the sheathed resistance heating element for helping to reflect radiant heat from the heating element to the cooking top. The sheathed resistance heating element also includes a pair of plug-in terminals for selectively connecting said retrofittable stove element to a source of electric power. These stove elements can be used in original equipment or in older stoves having conventional electric stove elements.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: July 14, 1998
    Inventors: Hanford L. Eckman, Charles M. Eckman
  • Mobile towel warmer and dryer
    Patent number: D303004
    Type: Grant
    Filed: June 2, 1987
    Date of Patent: August 22, 1989
    Inventors: Hanford L. Eckman, Charles M. Eckman
  • Vent ring for an electric range element
    Patent number: D339959
    Type: Grant
    Filed: September 19, 1991
    Date of Patent: October 5, 1993
    Assignee: Energy Convertors, Incorporated
    Inventor: Hanford L. Eckman