Patents by Inventor Harald Ubert

Harald Ubert 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: 5928694
    Abstract: An improved process for cooking foodstuffs, e.g. french fried potatoes from a cold initial state, in a hot air oven with a steam phase and a roasting phase, includes the following steps: preheating a refining chamber to a predetermined temperature, introducing the foodstuff to be cooked into a basket mounted for rotation within the refining chamber, switching on a basket-rotating drive, switching on a hot air fan, reheating the refining chamber, refining the foodstuff in the refining chamber, part of the water contained in the foodstuff passing into the ambient atmosphere within the refining chamber, thereby creating an atmosphere of increased moisture (steam phase), replacing the moist atmosphere with relatively drier hot air, thereby beginning a roasting phase, and switching off the heating, fan, and basket-rotating drive when cooking is completed.
    Type: Grant
    Filed: August 8, 1996
    Date of Patent: July 27, 1999
    Assignee: Ubert Gastrotechnik G.m.b.H.
    Inventors: Harald Ubert, Joachim Barthel
  • Patent number: 5868064
    Abstract: A hot air oven for food preparation, with a housing, with a cooking chamber that is defined by side walls as well as a bottom wall and a covering wall, with a blower for generating a hot air current in the cooking chamber, with a basket for the food, which basket can be inserted into the cooking chamber, wherein the basket can be rotated around a rotational axis and in operation, is penetrated by the hot air current, and is particularly easy to clean because, at least in sections along its circumference, the basket has a wall that is made of sheet metal and is provided with openings in its wall.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: February 9, 1999
    Assignee: Ubert Gastrotechnik G.m.b.H.
    Inventors: Harald Ubert, Helmut Heller
  • Patent number: 5683604
    Abstract: The invention relates to a hot air oven for the preparation of foodstuffs, with a housing with four housing side walls, a bottom and a housing cover, with a cooking chamber delimited by four side walls 4 as well as a bottom 2 and a ceiling 3, with a first blower 6 for generating a hot air flow in the cooking chamber, with a rotatable basket 5 for the foodstuffs, which can be inserted into the cooking chamber, wherein the hot air stream flows through the basket 5 during oven operation, with a control device for the course of the cooking progress, wherein the control device includes a temperature control, and with at least one incoming air conduit and at least one air outlet conduit 6, wherein at least one separation device 10 serving to separate out particles conveyed in the hot air flow is provided.
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: November 4, 1997
    Assignee: Ubert Gastrotechnik G.m.b.H.
    Inventors: Harald Ubert, Joachim Barthel
  • Patent number: 5662029
    Abstract: The invention relates to a hot air oven for the preparation of foodstuffs, having: a casing; a refining chamber bounded by four side walls, a bottom wall and a cover wall; a first fan for producing a hot air flow in the refining chamber; a rotatable basket for the foodstuffs which can be introduced into the refining chamber and through which the hot air flow passes during operation; a control device for the performance of the refining process, said control device comprising a temperature-regulating system; and at least one air supply channel and at least one air discharge channel, a more reliable and low-maintenance operation of which is made possible by the provision of at least one flap to open or close the air supply channel and/or the air discharge channel.
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: September 2, 1997
    Assignee: Ubert Gastrotechnik GmbH
    Inventors: Harald Ubert, Joachim Barthel
  • Patent number: 5579681
    Abstract: The invention relates to a hot air oven for the preparation of foodstuffs with a housing, with a cooking chamber delimited by four side walls as well as a bottom and a ceiling, with a first (2) blower for generating a hot air flow in the cooking chamber, with a rotatable basket (4) for the foodstuffs (5), which can be inserted into the cooking chamber, wherein the basket (4) can be rotated around an axis of rotation and the hot air stream flows through it during operation, wherein the basket (4)is guided into the direction required for insertion into the cooking chamber by means of guide elements (10) wherein the guide elements (10) are provided with a friction-reducing surface.
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: December 3, 1996
    Assignee: Ubert Gastrotechnik G.m.b.H.
    Inventors: Harald Ubert, Joachim Barthel
  • Patent number: 5485780
    Abstract: A rotisserie oven including separate convection and radiant heating elements is provided with individually controllable fans to allow precise control of food quality during different operational modes of the oven. In particular, a cooling fan is provided which may be operated separately of convection fans to prevent unwanted air circulation within the oven. According to a further embodiment of the invention, the upper surface of the oven is provided with substantially flat and seam-free configuration to allow for easy cleaning. Channels provided for directed convection currents are easily removable to facilitate cleaning. A control system allows for selection of predetermined operational modes utilizing individual fan and heating element control.
    Type: Grant
    Filed: February 26, 1993
    Date of Patent: January 23, 1996
    Assignee: Food Automation Service Techniques, Inc.
    Inventors: Bernard Koether, George F. Koether, II, Harald Ubert