Patents by Inventor L. D. Metcalfe

L. D. Metcalfe 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).

  • Publication number: 20020096510
    Abstract: A method for controlling the duration of a self-cleaning operation in an oven responsive to the oven usage. The oven includes a cooking chamber, a heating device for supplying heat into the cooking chamber, an exhaust outlet from the cooking chamber leading to atmosphere, and a heat control device for controlling the heating device for baking, broiling and self-cleaning cycles. The method of controlling the duration includes the steps of maintaining a count at the heat control device of the length of oven operation time performed since a last self-cleaning cycle, accepting an input at the heat control device to begin a self-cleaning operation, and controlling the heating device to heat the oven cavity for a time period based upon the length of oven operation time performed since a last self-cleaning cycle.
    Type: Application
    Filed: July 9, 2001
    Publication date: July 25, 2002
    Inventors: L. D. Metcalfe, Richard L. Baker, May M. May
  • Patent number: 4921315
    Abstract: A refrigeration apparatus having a plurality of containers removably stored on the inner liner portion of the refrigeration apparatus door. A number of different forms of the containers is disclosed. The containers may be chosen by the user to have different desired heights and capacities commensurate with the user's needs. The containers are preferably formed of materials permitting their removal from the refrigerated environment to heating or serving environments, as desired. Releasable locking structure is provided for retaining the containers in association with the door, notwithstanding the normal movement thereof in the ordinary use of the refrigeration apparatus. In one form, shallow containers are utilized as covers.
    Type: Grant
    Filed: October 18, 1988
    Date of Patent: May 1, 1990
    Assignee: Whirlpool Corporation
    Inventors: L. D. Metcalfe, Michael J. Maczuzak, Curtis J. Bailey, Paul R. Deyo
  • Patent number: 4801182
    Abstract: A refrigeration apparatus having a plurality of containers removably stored on the inner liner portion of the refrigeration apparatus door. A number of different forms of the containers is disclosed. The containers may be chosen by the user to have different desired heights and capacities commensurate with the user's needs. The containers are preferably formed of materials permitting their removal from the refrigerated environment to heating or serving environments, as desired. Releasable locking structure is provided for retaining the containers in association with the door, notwithstanding the normal movement thereof in the ordinary use of the refrigeration apparatus. In one form, shallow containers are utilized as covers.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: January 31, 1989
    Assignee: Whirlpool Corporation
    Inventors: L. D. Metcalfe, Michael J. Maczuzak, Curtis J. Bailey, Paul R. Deyo