Oven Shelf Or Rack Patents (Class 126/337R)
  • Patent number: 6131507
    Abstract: A stand or cart for baking covered molds, preferably being a cart for rack ovens, includes shelves put into or removed from the cart from a same side. Approximately at the middle of the adjacent sides there is at each side a vertical bar (10, 11). Each bar is movalbe in vertical direction and mounted in slide bushings (12, 13), for each bar there is one bushing at the upper and lower frame. In the bars (10, 11) there are a number of holes (20) which corresponds to the number of shelves. The holes are positioned so that they are at the same height as the upper rims of the molds when the bars are in their lower positions. For each pair of holes there is a shaft (15) which extends itself between the bars and through the corresponding holes. A lid (14) is mounted to each shaft (15).
    Type: Grant
    Filed: July 15, 1999
    Date of Patent: October 17, 2000
    Inventor: Jan Westbergh
  • Patent number: 6114665
    Abstract: An electric oven with an oven muffle which can be closed by a door and in which a cooking-product support can be held on a holder element. The cooking-product support has its own cooking-product support heater element, and via a power supply element, the cooking-product support heater element can be fed with an electric voltage of the oven, is known. In order to keep the outlay for providing electrical contact for the cooking-product support heater element low, the holder element for the cooking-product support at the same time serves as the power supply conduit or element.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: September 5, 2000
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Jose Andres Garcia, Joachim Reichard, Felicitas Ziegler, Manfred Plankl, Hans Lappat, Armin Sigmund, Bernd Stitzl, Michael Wagner, Kurt Knebel, Klaus Erdmann, Hans Linde, Uwe Neumann, Andreas Rehklau
  • Patent number: 6112916
    Abstract: An oven rack for supporting food items to be cooked in a cavity of an appliance includes a support platform defined by a plurality of support elements that establish primary and secondary zones upon which food items to be cooked can be placed. The support elements are located in closer proximity within the primary zones than in the secondary zones. Preferably, the support elements are further interconnected by at least one cross support element in each of the primary zones. With this configuration, a consumer is directed to support food items to be cooked in optimal locations upon the oven rack.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: September 5, 2000
    Assignee: Maytag Corporation
    Inventors: Shelton T. Barnes, Perry A. Bennett, Valerie L. Hern-Fonseth
  • Patent number: 6073624
    Abstract: A swing-out supporting arrangement (7) primarily intended for a wall-mounted oven (1) of domestic type comprises a bottom plate (6) supported by link arms (9, 10), said bottom plate (6) and an insert (8), possibly associated with said bottom plate, being retractable from the oven (1) by a swing-out movement without the use of any front door. The bottom plate (6) with the insert (8) can be moved between a first position inside the oven and a second swing-out position below and in front of the over front wall (2). Preferably, the swing-out movement is performed by means of an electric motor which is rotatable between two end positions. The principle of invention can also be used for a ceiling plate (4) supported by link arms, said plate being swingingly displaced in a corresponding lifting movement from an oven positioned at a low level.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: June 13, 2000
    Assignee: Aktiebolaget Electrolux
    Inventor: Ulf Laurent
  • Patent number: 6067981
    Abstract: An oven cavity, having an associated width defined by a lateral distance spanning side walls thereof, is provided with an oven rack that has a maximum lateral dimension which is substantially less than the width of the oven cavity and is directly supported by the oven cavity. In accordance with the preferred embodiment of the invention, the oven rack includes a platform portion, as well as first and second support portions. The first support portion is attached to a rear wall of the cavity and the second support portion is adapted to engage a runner provided on one of the side walls of the cavity, at least when the platform portion is weighted down by an item to be cooked. In the preferred embodiment, the first support portion projects rearwardly and upwardly from the platform portion and has an uppermost section provided with a pair of spaced retaining clips that are received within lanced tabs formed in the rear wall of the oven cavity.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: May 30, 2000
    Assignee: Maytag Corporation
    Inventors: Russ Brian Peter, John Scott Brown
  • Patent number: 5994673
    Abstract: A variable volume oven that can be modified to adjust its volume according to the cooking load. The volume of the oven is able to be adjusted by providing a heating element that is vertically adjustable within the oven to a position that provides better convective and radiative heating to the cooking load.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: November 30, 1999
    Assignee: General Electric Company
    Inventors: Youssef El-Shoubary, James Aaron White, Paul Alfred Siemers, Mark Edward Dausch, Bang Mo Kim, Norman Zethward Shilling
  • Patent number: 5988158
    Abstract: An oven apparatus includes a support unit which supports a cylindrically shaped oven unit which includes a first oven end and a second oven end. An oven access door is located at each oven end. Drawer guide tracks are supported by interior portions of the oven unit and extend outward from the interior portions of the oven unit. Grill drawers are supported by the respective drawer guide tracks. Fuel access doors having adjustable draft valves are located on the respective oven ends, and a damper-containing vent pipe is connected to the oven unit. The oven access doors are supported by the oven ends by horizontally oriented access door hinges. The oven access doors are located above the drawer guide tracks. The oven unit includes drain ports located at bottom portions of the oven unit. A thermometer is supported by the oven unit. First and second trays are supported at the respective oven ends, and the trays are located astride of the oven access doors.
    Type: Grant
    Filed: October 27, 1998
    Date of Patent: November 23, 1999
    Inventor: Henry G. Schmidt, Jr.
  • Patent number: 5839361
    Abstract: A cooking surface for use with cooking kettles, such as outdoor grills, is disclosed. The cooking surface is made from a single sheet of stainless steel of sufficient thickness to prevent warping under normal cooking temperatures. The cooking surface has a grill section with a plurality of parallel slots cut into the stainless steel to emulate a rack type cooking surface and a griddle section that is substantially solid. Two embodiments of the combination griddle and grill cooking surface are disclosed, one directed to a rectangular kettle and one directed to a circular kettle. An adaptable embodiment of the rectangular cooking surface having extendable slide bars to fit various size cooking kettles is also disclosed.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: November 24, 1998
    Inventor: John T. Richter
  • Patent number: 5823100
    Abstract: A baking and/or cooling rack having at least two shelves formed of wire. The shelves are connected by wire support legs such as at the outside corners of the shelves. The connection between each shelf and its attached support legs is provided by a spring pin. The spring pins form hinges which provide a friction force preventing free movement of the connected support legs with respect to the shelves, but which allows forced movement of the connected support legs with respect to the shelves, thereby allowing the rack to fold between an upright position and a knocked down position. A third shelf may be removably supported by the support legs between the first and second shelves.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: October 20, 1998
    Assignee: L & L Products
    Inventors: James L. Wienhold, Irene C. Kramer
  • Patent number: 5720273
    Abstract: An oven for receiving and heating cooking vessels including a plurality of heating units for generating heat and which are arranged in different horizontal planes. A respective cooking vessel is positionable in association with each heating unit. The oven may include a support structure such as connected rods for supporting the cooking vessels in association with the respective heating unit.
    Type: Grant
    Filed: November 5, 1996
    Date of Patent: February 24, 1998
    Assignee: Positron Investimentos E Servicos Loa.
    Inventor: Francesc Seuba Trullas
  • Patent number: 5638809
    Abstract: A collapsible multi-level baking rack assembly includes a plurality of racks, at least one connector leg and at least one leg retainer. Each rack includes at least one horizontally projecting lug. Each connector leg defines a plurality of substantially horizontal, vertically spaced slots for removably receiving a lug of one of the racks to support and space apart the plurality of racks. The retainer leg mutually engages a lug of each rack and the connector leg to retain each lug in each slot of the connector leg.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: June 17, 1997
    Assignee: L & L Products, Inc.
    Inventor: James L. Wienhold
  • Patent number: 5618458
    Abstract: A cooking appliance is disclosed which comprises an oven intended to be built into a space of predetermined volume in a kitchen unit. Controls for the oven are mounted externally of the space in order to maximise the volume available for the oven cavity. In preferred embodiments, the oven has a partition to divide its cavity into a plurality of cooking spaces. In a further preferred embodiment, the oven has a door assembly having a plurality of leaves which can be opened individually or together to give access to the whole cavity.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: April 8, 1997
    Inventor: Peris W. Thomas
  • Patent number: 5562023
    Abstract: A rib rack with sauce pan comprised of a rack system comprised of elongated rods. The rack system is arranged to hold a plurality of racks of ribs therein. The device includes a sauce pan having an open top, a closed bottom, and upwardly extending peripheral edge. The upwardly extending peripheral edge has a plurality of apertures formed therethrough. The sauce pan is positionable beneath the rack system within a grill or other cooking medium.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: October 8, 1996
    Inventor: Calvin L. Harrison
  • Patent number: 5447146
    Abstract: An oven rack assembly to support cooking vessels within an oven that is capable of being pulled outwardly and upwardly exterior to the oven's interior heating chamber. The rack is situated within a frame generally conforming to the shape and size of the interior cooking region of a conventional oven. Generally L-shaped arms are pivotally attached to the rack and the frame, the arms being of a shape and dimension to allow the rack, when pulled and removed from the interior of the oven, to be raised to any one of several heights, including a height approximately equal to that of the upper exterior surface of the oven, while maintaining a horizontal orientation at all times. The assembly has a locking mechanism to allow the user to raise the rack to any one of several convenient heights.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: September 5, 1995
    Inventor: Larry D. Nickerson
  • Patent number: 5069196
    Abstract: An auxiliary rack assembly (60) that is fastened to the bottom (11) of a barbecue kettle (10) is disclosed. The assembly (60) includes an auxiliary grid (61) for holding items above or to the side of a cooking grid (42). The auxiliary grid (61) has a plurality of posts (62) connected its perimeter for supporting a rail (63). The assembly (60) also includes a rigid articulating arm (90) with two ends (91,93) and a cantilever section (92) disposed therebetween and separated therefrom by elbows (94,95). The arm (90) is interconnected at one end by a kettle bracket member (80) and at the other end to the auxiliary grid (61). The kettle bracket (80) is fastened to the kettle (11) and permits rotation of the articulating arm (90) interconnected thereto. The grid (60) can also be interconnected to a rack bracket member (85) which permits further rotation of the articulating arm (90) interconnected thereto.
    Type: Grant
    Filed: August 23, 1990
    Date of Patent: December 3, 1991
    Assignee: Weber-Stephen Products Co.
    Inventors: Erich J. Schlosser, J. Michael Alden
  • Patent number: 4942862
    Abstract: A universal food holder for a barbecue grill includes a generally rectrangular frame (32) that has opposite sides (34) and opposite ends (36) with opposite sides having slots (46) therein for receiving opposite ends of food support elements. The food support elements (72, 82) are configured to provide a cradle for the food product that is being cooked and have opposite ends received into the slots in the side frame member. The food support elements can take a variety of configurations to suit the desires of the food which is being cooked but all are designed to be usable with the same frame. The side frame members are reinforced by vertical flanges (44) while the end frame members are likewise reinforced (52) and defined support ledges for food products. Also, the end members or pieces have apertures (58) therein which receive opposite ends of support bars which are designed to support a drip pan below the food support articles.
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: July 24, 1990
    Assignee: Weber-Stephen Products Co.
    Inventors: J. Michael Alden, Erich J. Schlosser, James C. Stephen
  • Patent number: 4940868
    Abstract: Disclosed is an insulation plate for insulating food items wrapped in metallic foil from a grid in a microwave oven, the insulation plate has a pair of elongate element with an arcuate shape, an element including a L shaped protrusion that discourages edgeways movement of the grip, a plurality of supporting protrusions that discourage movement to the center of the grid, and a plurality of L shaped support that prevents upward lifting.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: July 10, 1990
    Assignee: SamSung Electronics Co., Ltd.
    Inventors: Sanghoon Paik, Seokwon Hong
  • Patent number: 4930491
    Abstract: A cooking grill designed to overlie a conventional outdoor barbecue is disclosed having a portable, unitary cooking surface that includes both a griddle section and a charbroil section to allow for the simultaneous and efficient frying and charbroiling of food over the barbecue. Preferably, depending arms are attached to the underside of the unitary cooking surface and are spaced to support the surface when removed from the barbecue such that the surface may be used to serve cooked food. The downwardly depending arms are also located and sized to prevent lateral movement of the cooking surface relative to the conventional barbecue when the surface overlies the barbecue. Additional features of the portable grill include an upwardly extending circumferential lip about each of the griddle section and the charbroil section to facilitate the retention of food on the cooking surface and a unique detachably connectable handle means for moving the cooking surface.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: June 5, 1990
    Inventor: Alfred C. Purello
  • Patent number: 4870237
    Abstract: A microwave oven of a type equipped with a turntable inside its heating chamber has indented parts formed on the walls of the heating chamber. A rack is supported over the turntable by supporting members which are attached to these indented parts. Each supporting member has a part which is rotatable around a horizontal axis such that it can be unfolded to protrude into the chamber or folded inside the indented part without protruding into the chamber.
    Type: Grant
    Filed: January 24, 1989
    Date of Patent: September 26, 1989
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Shigeaki Fukumoto
  • Patent number: 4825845
    Abstract: A combustion apparatus for burning wood or coal comprises a cooking enclosure mounted above a combustion chamber enclosure. An upper space of the combustion chamber enclosure contains a combustion chamber having a floor and walls made of refractory material. The combustion chamber is closed all around except for the top. A plurality of primary air holes are provided in the floor of the combustion chamber and a plurality of secondary air holes are provided through the combustion chamber enclosure at the level of the open top of the combustion chamber. An ash pan is mounted for sliding into the combustion chamber enclosure below the combustion chamber to act as a regulator for air entering the combustion chamber enclosure. A cooking plate is pivotally mounted in the cooking enclosure so that it can be lowered into a cooking position over the open top of the combustion chamber.
    Type: Grant
    Filed: June 15, 1987
    Date of Patent: May 2, 1989
    Inventor: Elia Olivotti
  • Patent number: 4784111
    Abstract: An oven especially--but not exclusively--for baking French bread has a single loading opening which is closed by a principal door having a fill opening therein which, in turn, is closed by a series of small longitudinal, superimposed folding doors. One edge of each folding door covers the adjacent edge of the folding door immediately next to it. The small doors either pivot over an arc 180.degree. or slide laterally. The back of the oven may be equipped with a set of doors, such as the small doors. A gap separates the front edge of plates for supporting the bread and the plane of the interior side of the small doors. The plates are relatively thin, movable perforated sheets. The ends of a latch or hook-up bar may slide into supports on the stiles of the loading opening or be held in struts provided on each side of the small doors.
    Type: Grant
    Filed: November 13, 1985
    Date of Patent: November 15, 1988
    Inventor: Joseph Palomba
  • Patent number: 4718402
    Abstract: A collapsible roasting frame for holding a roast while it is being cooked. The roasting frame is made of bent-up wire. The roasting frame comprises a ring within which a roast or fowl can be received, a support frame for holding the ring and supporting the ring in an oven or on a table. Opposed standards are pivotally attached to the support frame and cooperate with the ring to provide a structure which can be advantageously used for roasting fowl and large pieces of meat. The entire roasting frame collapses into a small area.
    Type: Grant
    Filed: March 3, 1987
    Date of Patent: January 12, 1988
    Inventor: Donald E. Fordyce
  • Patent number: 4651713
    Abstract: A rack for forming a slide out support shelf in an enclosure such as an oven comprises an outer frame member defining the perimeter of the rack and having opposite front and rear limbs and opposite parallel side limbs, and a series of spaced parallel support members extending between and rigidly secured at their opposite ends to one of the pairs of opposite limbs of the outer frame member. The support members define a support surface of the rack and the rear limb of the frame member forms a stop member raised above the support surface when the rack is positioned in the enclosure with the side arms engaging above opposed guide ribs on opposite side walls of the enclosure. The side limbs have integrally formed rearwardly projecting and downwardly inclined hook-like projections for engaging over the guide ribs to prevent the rack from tilting and from pulling all the way out.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: March 24, 1987
    Inventor: Vladimir J. Ondrasik, II
  • Patent number: 4649897
    Abstract: A vaporizer-burner using liquid fuel such as oil, in which the oil conducted to the combustion chamber is vaporized before being ignited and in which the air required for combustion has been conducted to the combustion chamber along a separate duct. The problem in this type of vaporizer-burners of prior art is the continuous vacuum prevailing in the combustion chamber during operation, which renders the flame unstable and sensitive to changes in ambient conditions, such as wind squalls. With the vaporizer-burner of the invention, the problem has been solved in that the air supply duct has been divided into two parts, one directing air to the oil vaporizing process and the other to the combustion process, and that the supply proportion of said so-called primary and secondary airs can be adjusted with the aid of a turnable flap placed in the duct.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: March 17, 1987
    Assignee: Scan-Development KY
    Inventor: Heinz Ekman
  • Patent number: 4648379
    Abstract: A metal wire frame or rack designed to fit in a roasting pan to hold a fowl or roast. The wire is formed to provide handles to conveniently lift a large object from the roasting pan. An oval containing wire ring can be lifted from the frame for easy transferral of the fowl or roast to another surface.
    Type: Grant
    Filed: December 10, 1985
    Date of Patent: March 10, 1987
    Inventor: Donald E. Fordyce
  • Patent number: 4640265
    Abstract: A plurality of ceramic oven tiles (36) are supported on a metal frame (10) and the frame is supported in an oven on an oven rack (38) the frame (10) has an angle construction on all four sides. The two sides and the rear comprise upstanding walls (14, 16, 18) and inwardly extending walls (22, 24, 26) on which the tiles (36) are supported. The front has a vertically depending front wall (20) and an inwardly directed wall (28) on which front portions of the tiles (36) are supported. The front wall (20) functions to stiffen the front of the frame (10), and contributes to the overall stiffness of the frame (10). It rests against the front edge (40) of the oven rack (38), and in this manner positively positions the frame (10) on the oven rack (38). Wall (20) also functions as a handle for the frame (10). The frame (10) is constructed from sections of angle metal and metal strips, secured together by spot welding or rivets, or is a one-piece casting.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: February 3, 1987
    Inventor: H. Duane Romo
  • Patent number: 4637303
    Abstract: A cooking rack (10) for placement on a cooking surface, such as an existing shelf or tray in an oven. The cooking rack has a plurality of perforations (14) for receiving securing pins 20. A cooking utensil is placed on or under the cooking rack (10) and the securing pins (20) are placed in the perforations (14) to extend above and/or below the rack (10). In this manner the pins (20) are placed around the cooking utensil to prevent it from sliding. The securing pins (20) can also extend below the cooking rack (10) and engage the cooking surface to prevent the cooking rack from moving relative to the cooking surface.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: January 20, 1987
    Inventor: Lloyd P. Lucky
  • Patent number: 4637373
    Abstract: An oven includes a baking chamber defined by the inner case. The two storied upper and lower racks are provided in the baking chamber with a distance in-between. On both edges of these racks the rear end part of a U-letter shaped supporting member is fixed respectively, with the tips of said supporting members penetrating through a long hole formed horizontally at a predetermined height on the inner case. Consequently, both upper and lower racks are respectively so constructed as to move horizontally in the baking chamber. On each of both outer sides of the inner case a connecting rod is provided which is pivotally sustained at its upper end so that it can be turned round. This connecting rod is connected with the tips of the supporting member, and at its lower end it is connected through an arm with the door which pivotally opens and closes at its lower end line. By opening the door, therefore, both upper and lower racks are withdrawn forward to the opening side of the oven.
    Type: Grant
    Filed: October 17, 1984
    Date of Patent: January 20, 1987
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yoshinari Shirai, Tutomu Kuranaga
  • Patent number: 4553523
    Abstract: An adjustable grate includes first and second identical grate members each with first and second parallel supports. A plurality of upper and lower elements are secured to and extend perpendicularly to the parallel supports providing a space between the upper and lower elements. The grate is assembled by positioning the second support of each grate member between the upper and lower elements of the opposing grate member. The width of the grate is adjusted by sliding the first and second grate members together or apart. The length of the grate is adjusted by moving an upper end of the first grate member above the upper end of the second grate member until the distance between the upper end of the first grate member and the lower end of the second grate member is the desired length. First and second extension members are then positioned between the first and second supports and the upper and lower elements of each grate member.
    Type: Grant
    Filed: November 29, 1982
    Date of Patent: November 19, 1985
    Assignee: Harper-Wyman Company
    Inventor: Charles E. Stohrer, Jr.
  • Patent number: 4510362
    Abstract: A wire rack construction designed to be used in a microwave oven in spaced relationship with the flat bottom wall of the oven. The wire rack is provided with upwardly and downwardly projections which are arranged such that when the rack is placed on the flat bottom wall of the oven the rack will tilt at a steep angle to thereby discourage its use in the oven when it is not arranged in its design position relative to the bottom wall.
    Type: Grant
    Filed: May 21, 1984
    Date of Patent: April 9, 1985
    Assignee: General Electric Company
    Inventor: Matthew S. Miller
  • Patent number: 4476848
    Abstract: A countertop oven particularly well suited for preparing convenience foods, such as frozen dinners and hot sandwiches is provided. The oven includes at least one heating and serving tray with heat resistant handles, the tray sliding into slots in the oven side-walls with the handles on the outside so that the heating and serving tray may be removed from the oven and placed directly on a table for serving. In a preferred embodiment of the invention, the oven includes two pairs of slots for receiving two heating and serving trays and includes three heating elements. This heating configuration permits cooking on the two trays in about sixty percent of the time compared to conventional countertop ovens.
    Type: Grant
    Filed: October 18, 1982
    Date of Patent: October 16, 1984
    Inventor: Roger I. Protas
  • Patent number: 4474165
    Abstract: An improved cooking oven having two flat surfaces covered by an enclosure. One of the flat surfaces serves as a base on which the enclosure rests and on which both fuel to be burned and food to be cooked are placed. The second of the flat surfaces, which is substantially parallel to and positioned above the flat surface that acts as the base, serves as a baffle to control the flow of combustion products from the burning fuel through the enclosure and as an additional cooking surface. Three openings in the wall of the enclosure are provided; two of which are used for passage of food and fuel therethrough. The third opening serves as a flue and provides a path through which combustion products from the burning fuel escape from the oven.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: October 2, 1984
    Inventor: Robert T. Richardson
  • Patent number: 4048984
    Abstract: An oven rack engageable with a chain for movement through a tunnel type oven comprising an open rectangular frame having a leading side, a trailing side, and outer and inner ends, there being a plurality of axially parallel spaced apart wire-like rods extending between said sides and being secured at their ends thereto defining a support for articles of food, or for vessels containing same; said frame being mounted upon runners, and a pin secured to said frame and engageable with the chain. A guide element is provided on the inner end of said frame for abutting the conveying chain to inhibit swinging of said rack during travel.
    Type: Grant
    Filed: April 7, 1976
    Date of Patent: September 20, 1977
    Inventor: Timothy J. Eberhardt
  • Patent number: 3977389
    Abstract: An improved rack constraining apparatus especially adapted to alleviate vibration and rattle when a rack, such as an oven rack, is located in an unstable environment, such as an oven within a recreational vehicle. This device utilizes the outer body wires of the rack itself to bind the support rib between the body wire and the rack frame.
    Type: Grant
    Filed: April 16, 1975
    Date of Patent: August 31, 1976
    Inventor: Vladimir J. Ondrasik, II
  • Patent number: 3948244
    Abstract: Food preparation apparatus involves a heat transmitting zone and a heat source located remotely from the transmitting zone. Heat energy is transferred from the heat source to the transmitting zone by a fluid vapor which travels from the heat source to the transmitting zone, condenses upon the transmitting zone and then returns in a liquid state to the heat source.In one described embodiment of this invention, an oven is provided wherein a fluid enclosure within the oven walls confines the vapor which transfers heat energy from a central heat source to heat transmitting surfaces.
    Type: Grant
    Filed: November 20, 1974
    Date of Patent: April 6, 1976
    Assignee: Thermo Electron Corporation
    Inventors: Lazaros J. Lazaridis, Edward F. Searight, Paul K. Shefsiek
  • Patent number: D425754
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: May 30, 2000
    Inventors: Eveline L. Matteson, Sandra J. Elliott