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US20030159687A1 - Hot-air oven having an improved door-sealing member - Google Patents

Hot-air oven having an improved door-sealing member Download PDF

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Publication number
US20030159687A1
US20030159687A1 US10/370,997 US37099703A US2003159687A1 US 20030159687 A1 US20030159687 A1 US 20030159687A1 US 37099703 A US37099703 A US 37099703A US 2003159687 A1 US2003159687 A1 US 2003159687A1
Authority
US
United States
Prior art keywords
basket
hot
air oven
cooking chamber
closure element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/370,997
Other languages
English (en)
Inventor
Christoph Stephan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ubert Gastrotechnik GmbH
Original Assignee
Ubert Gastrotechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ubert Gastrotechnik GmbH filed Critical Ubert Gastrotechnik GmbH
Assigned to UBERT GASTROTECHNIK GMBH reassignment UBERT GASTROTECHNIK GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STEPHAN, CHRISTOPH
Publication of US20030159687A1 publication Critical patent/US20030159687A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/021—Doors specially adapted for stoves or ranges sealings for doors or transparent panel

Definitions

  • the present invention relates to a hot-air oven for the preparation of food.
  • the oven includes a housing that has a cooking chamber delimited by four side walls, one of which can be embodied as a door, as well as a bottom wall and a top wall.
  • a blower means is provided for producing a hot-air stream in the cooking chamber.
  • a control means is also provided for controlling the progress of a cooking process.
  • a rotatable basket is provided for food and can be introduced into the cooking chamber via an opening in one of the walls, whereby during operation a hot-air stream passes through the basket. In addition, during operation the wall opening is closed off by a closure element that is connected to the basket.
  • a hot-air oven of this type is known, for example, from the European Patent EP 0734503 B1.
  • a basket for the products that are to be prepared is mounted in a cooking chamber so as to be rotatable about an axis.
  • the basket can be withdrawn out of the cooking chamber in the axial direction, and is provided on its free end with a round closure plate that is disposed concentric to the axis of rotation.
  • This closure plate is fixedly connected with the basket, and when the basket is completely inserted seals off the cooking chamber toward the outside.
  • a seal is provided between the housing, which is stationary during operation, and a similarly stationary, pivotable door on the one hand and the rotating closure plate on the other hand; during operation, the seal is similarly stationary and the closure plate of the basket slides over the sealing surfaces of the seal.
  • FIG. 1 is a perspective view of one exemplary embodiment of an inventive hot-air oven.
  • FIG. 2 is a cross-sectional view through the sealing region of the door of the hot-air oven of FIG. 1.
  • the hot-air oven of the present invention is characterized primarily in that the closure element is supported relative to the basket in a pivot bearing that is coaxial with the axis of rotation of the basket.
  • the closure element Since the closure element is supported relative to the basket in a pivot bearing that coincides with the axis of rotation, the basket can be rotated during operation while the closure element remains stationary.
  • the closure element is preferably provided with a sealing zone that is circular cylindrical and rotationally symmetrical relative to the support axis.
  • the seal which is associated with the housing of the door, is preferably disposed against the outer peripheral surface of the cylindrical region of the closure element.
  • the operation can be made particularly reliable if, as a function of a control means, the basket is withdrawn out of the cooking chamber only when an opening provided on the basket is directed upwardly.
  • the basket is furthermore advantageous for the basket to be rotatable, by means of a motor, out of this position and into a discharge or issuing position.
  • a mechanically fixed coupling is effected between the closure element and the basket. This can be effected by a manual actuation of a coupling or catch that is associated with the handle.
  • the hot-air oven has three fixed side walls 2 as well as a side wall 4 that is provided with a door 3 and that is to be opened.
  • the upper side is formed by a top wall 5
  • the under side is formed by a non-visible bottom wall.
  • the walls 2 - 5 surround the interior of the hot-air oven, a portion of which is embodied as a cooking chamber.
  • the side wall 4 and the door 3 have a circular opening 7 through which a mesh-type basket 8 can be introduced into the cooking chamber.
  • the basket 8 is rotatably mounted in the cooking chamber in a manner known per se. During operation, a hot-air stream passes through the basket, which is rotated about an axis that is parallel to the direction of insertion and that coincides with the axis of symmetry of the opening 7 .
  • the basket 8 is provided with a closure element 10 that has a handle 11 for pulling the basket 8 out or pushing it in.
  • the closure element has a cup-shaped portion 13 that is embodied to be rotationally symmetrical about an axis of rotation 14 , and that is welded or otherwise fused to the outer portion of the closure element 10 .
  • Disposed centrally and perpendicular to the closure element 10 is a bearing or support pin 15 that passes through the portion 13 and in the direction toward the basket 8 extends beyond the basket.
  • the pin 15 carries two bearing discs 16 , which are disposed on either side of an end face 17 of the basket 8 .
  • a central sleeve spaces the discs 16 apart, so that the end face 17 of the basket 8 remains rotatable about the axis 14 between the discs 16 .
  • a cap nut secures the discs 16 to the pin 15 .
  • the door 3 which is provided with the opening 7 that is similarly disposed approximately concentrically relative to the axis 14 , is, for receiving the described closure element 10 , provided with a sealing means 20 that is made of an elastomeric or rubber-elastic material and is provided with a free sealing lip 21 that faces the closure element 10 .
  • the interior of the basket 8 can be filled with food, for example frozen french fries.
  • the basket 8 is then inserted via the handle 11 , in the direction of the axis 14 , into the housing of the hot-air oven 1 , stated more precisely into the cooking chamber, as a result of which the sealing lip 11 of the sealing means 20 rests against the outer peripheral surface 13 of the cup-shaped portion of the closure element 10 .
  • the cooking chamber is thereby sealed off relative to the outer atmosphere. That portion of the closure element 10 that projects radially beyond the peripheral surface 13 secures the region of the sealing means 10 and the sealing lip 20 against external contact and also optically seals the cooking chamber.
  • the basket 8 is rotated about the axis 14 and is subjected to a hot-air stream.
  • the end face 17 of the basket 8 also rotates about the axis 14 between the discs 16 , while the closure element 10 , with its attached parts, remains stationary.
  • the sealing of the cooking chamber in the region of the contact surface between the sealing lip 21 and the outer peripheral surface 13 is stationary due to the mechanical uncoupling in the region of the pivot bearing formed by the elements 16 and 17 .
  • the basket 8 When the cooking process is concluded, the basket 8 is rotated into a starting position in which its basket opening is toward the top. Via the handle 11 , the basket 8 can then be pulled out of the housing until it abuts thereagainst. The opening of the basket is then rotated downwardly by a motor, so that the food product issues from the basket 8 .
  • the rotation of the basket into a discharge position by motor can be replaced by a manual rotation via the handle 11 .
  • a fixed coupling which is not illustrated in FIG. 2, is required that engages only when the basket 8 is withdrawn out of the cooking chamber.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)
US10/370,997 2002-02-22 2003-02-20 Hot-air oven having an improved door-sealing member Abandoned US20030159687A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10207638.3A DE10207638B4 (de) 2002-02-22 2002-02-22 Heißluftofen mit verbesserter Türabdichtung
DE10207638.3 2002-02-22

Publications (1)

Publication Number Publication Date
US20030159687A1 true US20030159687A1 (en) 2003-08-28

Family

ID=27674871

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/370,997 Abandoned US20030159687A1 (en) 2002-02-22 2003-02-20 Hot-air oven having an improved door-sealing member

Country Status (2)

Country Link
US (1) US20030159687A1 (de)
DE (1) DE10207638B4 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050183716A1 (en) * 2003-12-31 2005-08-25 Oosterling Pieter A. Device and method for the heating of food

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155294A (en) * 1977-10-25 1979-05-22 Rotofry Systems, Inc. Cooking apparatus for foodstuffs
US4491065A (en) * 1982-05-06 1985-01-01 Larry Poulson Food heating apparatus
US5148737A (en) * 1989-06-09 1992-09-22 Cyclofur Company, L.P. Hot air circulating oven and food heating apparatus
US5154940A (en) * 1989-04-27 1992-10-13 The Procter & Gamble Company Method for rapidly heating or cooking a food product
US5166487A (en) * 1989-12-15 1992-11-24 Tecogen, Inc. Cooking oven with convection and microwave heating
US5193444A (en) * 1991-04-16 1993-03-16 Rair Systems, Inc. Apparatus for heating, cooking and roasting food
US5545874A (en) * 1992-03-09 1996-08-13 Hansson; Bengt H. Hot-air oven for cooking food in hot air
US5579681A (en) * 1994-10-10 1996-12-03 Ubert Gastrotechnik G.M.B.H. Basket guide for a hot air oven
US5662029A (en) * 1996-06-10 1997-09-02 Ubert Gastrotechnik Gmbh Hot air oven for the preparation of foodstuffs
US5780815A (en) * 1996-05-17 1998-07-14 Air Fry, Inc. Oil-free fryer, food cooker
US5910264A (en) * 1994-06-27 1999-06-08 Dauliach; Michel Henri Electrical cooking apparatus for cooking precooked, deep-frozen or fresh food, of the fryer type, with no oil bath
US5994672A (en) * 1996-05-17 1999-11-30 Air Fry, Inc. Oil-free fryer, food cooker
US6104014A (en) * 1996-10-07 2000-08-15 Chung; Jing-Yau Microwave and steam cooking system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2004775A (en) * 1931-06-16 1935-06-11 Wright Vincent Apparatus for cooking material
US4295419A (en) * 1980-05-12 1981-10-20 Larry Poulson Confined air food heating apparatus
DE4436036A1 (de) * 1994-10-10 1996-07-04 Ubert Gastrotechnik Gmbh Heißluftofen für die Zubereitung von Lebensmitteln

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155294A (en) * 1977-10-25 1979-05-22 Rotofry Systems, Inc. Cooking apparatus for foodstuffs
US4491065A (en) * 1982-05-06 1985-01-01 Larry Poulson Food heating apparatus
US5154940A (en) * 1989-04-27 1992-10-13 The Procter & Gamble Company Method for rapidly heating or cooking a food product
US5339726A (en) * 1989-06-09 1994-08-23 Cyclofur Company, L.P. Hot air circulating oven and food heating apparatus
US5148737A (en) * 1989-06-09 1992-09-22 Cyclofur Company, L.P. Hot air circulating oven and food heating apparatus
US5166487A (en) * 1989-12-15 1992-11-24 Tecogen, Inc. Cooking oven with convection and microwave heating
US5193444A (en) * 1991-04-16 1993-03-16 Rair Systems, Inc. Apparatus for heating, cooking and roasting food
US5545874A (en) * 1992-03-09 1996-08-13 Hansson; Bengt H. Hot-air oven for cooking food in hot air
US5910264A (en) * 1994-06-27 1999-06-08 Dauliach; Michel Henri Electrical cooking apparatus for cooking precooked, deep-frozen or fresh food, of the fryer type, with no oil bath
US5579681A (en) * 1994-10-10 1996-12-03 Ubert Gastrotechnik G.M.B.H. Basket guide for a hot air oven
US5780815A (en) * 1996-05-17 1998-07-14 Air Fry, Inc. Oil-free fryer, food cooker
US5994672A (en) * 1996-05-17 1999-11-30 Air Fry, Inc. Oil-free fryer, food cooker
US5662029A (en) * 1996-06-10 1997-09-02 Ubert Gastrotechnik Gmbh Hot air oven for the preparation of foodstuffs
US6104014A (en) * 1996-10-07 2000-08-15 Chung; Jing-Yau Microwave and steam cooking system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050183716A1 (en) * 2003-12-31 2005-08-25 Oosterling Pieter A. Device and method for the heating of food
US7411159B2 (en) * 2003-12-31 2008-08-12 Tumble-Woc B.V. Device and method for the heating of food
US20080286429A1 (en) * 2003-12-31 2008-11-20 Pieter Adriaan Oosterling Device and method for the heating of food
US7901721B2 (en) 2003-12-31 2011-03-08 Tumble-Woc B.V. Device and method for the heating of food

Also Published As

Publication number Publication date
DE10207638A1 (de) 2003-09-04
DE10207638B4 (de) 2016-07-14

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Legal Events

Date Code Title Description
AS Assignment

Owner name: UBERT GASTROTECHNIK GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STEPHAN, CHRISTOPH;REEL/FRAME:013805/0267

Effective date: 20021119

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION