Patents by Inventor Larry L. McGrain

Larry L. McGrain 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).

  • Radiant electric heating appliance
    Patent number: 6167196
    Abstract: A portable electric space heater having a power cord with a male electrical plug and having easily replaceable quartz heating elements so that an unskilled person can remove and replace a heating element with a minimum of time, tools and skill. The heating elements are removably mounted by sockets within the heater housing behind a grill. One edge of the grill is pivotally connected to the housing and an opposite edge is connected to the housing by a latch member formed on the grill. Access to the heating elements can be obtained by unlatching the grill using the male plug as a tool.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: December 26, 2000
    Assignee: The W. B. Marvin Manufacturing Company
    Inventors: Charles A. Huggins, Jr., Kostas Kaplanis, Barry W. Smith, Larry L. McGrain, James B. Johnson, Thomas H. Mills