Patents by Inventor Charles Hartfelder

Charles Hartfelder 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).

  • Patent number: 8404292
    Abstract: A food warming apparatus includes a heating compartment that can hold one or more trays containing previously cooked food portions. A cover for a tray has a horizontal section and a vertical section extending downwardly from one side of the horizontal section. A rack in the heating compartment includes a channel and a stop that blocks the front end of the channel. The vertical section of the cover fits securely in the channel behind the stop such that the rack supports the cover substantially only through the vertical section. When a tray is inserted into the receiving space cooperatively defined by the cover and rack, the cover is lifted up so that the horizontal section rests on the tray and at least partially blocks the open top of the tray, thereby restricting evaporation of liquids from the previously cooked food portions contained in the tray.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: March 26, 2013
    Assignee: Prince Castle, Inc.
    Inventors: Loren J. Veltrop, Jeffrey Schroeder, Charles Hartfelder, Jack Guasta
  • Publication number: 20120079699
    Abstract: A food warming apparatus includes a heating compartment that can hold one or more trays containing previously cooked food portions. A cover for a tray has a horizontal section and a vertical section extending downwardly from one side of the horizontal section. A rack in the heating compartment includes a channel and a stop that blocks the front end of the channel. The vertical section of the cover fits securely in the channel behind the stop such that the rack supports the cover substantially only through the vertical section. When a tray is inserted into the receiving space cooperatively defined by the cover and rack, the cover is lifted up so that the horizontal section rests on the tray and at least partially blocks the open top of the tray, thereby restricting evaporation of liquids from the previously cooked food portions contained in the tray.
    Type: Application
    Filed: December 14, 2011
    Publication date: April 5, 2012
    Applicant: PRINCE CASTLE, INC.
    Inventors: Loren J. Veltrop, Jeffrey Schroeder, Charles Hartfelder, Jack Guasta
  • Patent number: 8096231
    Abstract: A food warming apparatus includes a heating compartment that can hold one or more trays containing previously cooked food portions. A cover for a tray has a horizontal section and a vertical section extending downwardly from one side of the horizontal section. A rack in the heating compartment includes a channel and a stop that blocks the front end of the channel. The vertical section of the cover fits securely in the channel behind the stop such that the rack supports the cover substantially only through the vertical section. When a tray is inserted into the receiving space cooperatively defined by the cover and rack, the cover is lifted up so that the horizontal section rests on the tray and at least partially blocks the open top of the tray, thereby restricting evaporation of liquids from the previously cooked food portions contained in the tray.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: January 17, 2012
    Assignee: Prince Castle, Inc.
    Inventors: Loren J. Veltrop, Jeffrey Schroeder, Charles Hartfelder, Jack Guasta
  • Patent number: 7971523
    Abstract: A food warming apparatus includes a cabinet with one or more heating compartments for holding one or more trays. Each tray has a rim extending outwardly from a tray opening and may contain previously cooked food portions. One or more dividers are removably mounted inside a heating compartment, dividing the heating compartment into a first sub-compartment and second sub-compartment. The one or more dividers include a first support flange that extends into the first sub-compartment and a second support flange that extends into the second sub-compartment. The first support flange supports a rim of a first tray in the first sub-compartment such that the first tray is suspended above a lower compartment surface of the heating compartment. The second support flange supports a rim of a second tray in the second sub-compartment such that the second tray is suspended above the lower compartment surface of the heating compartment.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: July 5, 2011
    Assignee: Prince Castle, Inc.
    Inventors: Charles Hartfelder, Loren J. Veltrop, Richard L. Thorne, Jack Guasta
  • Patent number: 7858906
    Abstract: A food warming apparatus includes a heating compartment that can hold one or more trays containing previously cooked food portions. A rack in the heating compartment includes a support member, a channel, and a stop that blocks the front end of the channel. A cover that includes a horizontal section and a vertical section is mounted on the support such that the horizontal section is supported on one side by the support member and on the other side by the vertical section, which is positioned in the channel behind the stop. When a tray is inserted into the receiving space defined by the cover and support member, the cover is lifted up so that the horizontal section rests on the tray and at least partially blocks the open top of the tray, thereby restricting evaporation of liquids from the previously cooked food portions contained in the tray.
    Type: Grant
    Filed: June 8, 2007
    Date of Patent: December 28, 2010
    Assignee: Prince Castle, Inc.
    Inventors: Loren J. Veltrop, Jeffrey Schroeder, Charles Hartfelder, Jack Guasta
  • Publication number: 20090199725
    Abstract: A food warming apparatus includes a heating compartment that can hold one or more trays containing previously cooked food portions. A cover for a tray has a horizontal section and a vertical section extending downwardly from one side of the horizontal section. A rack in the heating compartment includes a channel and a stop that blocks the front end of the channel. The vertical section of the cover fits securely in the channel behind the stop such that the rack supports the cover substantially only through the vertical section. When a tray is inserted into the receiving space cooperatively defined by the cover and rack, the cover is lifted up so that the horizontal section rests on the tray and at least partially blocks the open top of the tray, thereby restricting evaporation of liquids from the previously cooked food portions contained in the tray.
    Type: Application
    Filed: February 12, 2008
    Publication date: August 13, 2009
    Applicant: PRINCE CASTLE, INC.
    Inventors: Loren J. Veltrop, Jeffrey Schroeder, Charles Hartfelder, Jack Guasta
  • Publication number: 20090126580
    Abstract: A food warming apparatus includes a cabinet with one or more heating compartments for holding one or more trays. Each tray has a rim extending outwardly from a tray opening and may contain previously cooked food portions. One or more dividers are removably mounted inside a heating compartment, dividing the heating compartment into a first sub-compartment and second sub-compartment. The one or more dividers include a first support flange that extends into the first sub-compartment and a second support flange that extends into the second sub-compartment. The first support flange supports a rim of a first tray in the first sub-compartment such that the first tray is suspended above a lower compartment surface of the heating compartment. The second support flange supports a rim of a second tray in the second sub-compartment such that the second tray is suspended above the lower compartment surface of the heating compartment.
    Type: Application
    Filed: November 15, 2007
    Publication date: May 21, 2009
    Applicant: PRINCE CASTLE, INC.
    Inventors: Charles Hartfelder, Loren J. Veltrop, Richard L. Thorne, Jack Guasta
  • Publication number: 20080302778
    Abstract: A food warming apparatus includes a heating compartment that can hold one or more trays containing previously cooked food portions. A rack in the heating compartment includes a support member, a channel, and a stop that blocks the front end of the channel. A cover that includes a horizontal section and a vertical section is mounted on the support such that the horizontal section is supported on one side by the support member and on the other side by the vertical section, which is positioned in the channel behind the stop. When a tray is inserted into the receiving space defined by the cover and support member, the cover is lifted up so that the horizontal section rests on the tray and at least partially blocks the open top of the tray, thereby restricting evaporation of liquids from the previously cooked food portions contained in the tray.
    Type: Application
    Filed: June 8, 2007
    Publication date: December 11, 2008
    Applicant: PRINCE CASTLE, INC.
    Inventors: Loren J. Veltrop, Jeffrey Schroeder, Charles Hartfelder, Jack Guasta