Shielding Patents (Class 219/729)
  • Patent number: 8445043
    Abstract: A multi-temperature and multi-texture frozen food microwave heating tray includes a first integral compartment defined by at least one sidewall and an upwardly convex bottom, and a second integral compartment defined by at least one sidewall and a bottom and comprising a microwave energy access modulating structure for one of the first and second compartments.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: May 21, 2013
    Assignee: H.J. Heinz Company
    Inventors: Daniel C. Jackson, Christopher P. Rowoth, Elizabeth Ritchey, William J. Rodgers, Amber Fisher Koehler
  • Patent number: 8431877
    Abstract: A reusable self-supporting field director for use in heating an article in a microwave oven is characterized by a plurality of vanes, with each vane extending radially outwardly from a central axis and being angularly adjacent to two other vanes. The vanes are attached to each other at their inner ends. Each vane is formed from an electrically non-conductive outer jacket having a predetermined coefficient of thermal expansion and an inner layer of an electrically conductive material having a predetermined coefficient of thermal expansion that is different from the coefficient of thermal expansion of the outer jacket. The inner layer and the outer jacket are arranged in a laterally symmetric fashion with the inner layer being substantially completely enclosed within the electrically non-conductive outer jacket, so that thermal expansion effects due to heating are equalized across the thickness of each vane.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: April 30, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventor: William R. Corcoran, Jr.
  • Patent number: 8426785
    Abstract: A self-supporting field director for use in heating an article in a microwave oven is characterized by a plurality of vanes, each vane extending radially outwardly from a central axis and being angularly adjacent to two other vanes. The vanes are supported by a plurality of bracing members, each bracing member extending between adjacent vanes and being attached thereto. Each vane has a substrate formed from an electrically non-conductive material. A portion of at least one of the first and second major surfaces is covered by an electrically conductive material.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: April 23, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventor: William R. Corcoran, Jr.
  • Patent number: 8426786
    Abstract: A reusable self-supporting field director for use in a microwave oven is characterized by a plurality of vanes, with each vane extending radially outwardly from a central axis. Each vane is angularly adjacent to two other vanes and is attached to each other at their inner ends. Each vane has a predetermined thickness dimension. Each vane is formed from a pair of electrically non-conductive outer laminae, each having a predetermined coefficient of thermal expansion, and an inner core formed of an electrically conductive material. The core has a predetermined coefficient of thermal expansion that is different from the coefficient of thermal expansion of the outer laminae. The inner core and the outer laminae are arranged in a laterally symmetric fashion with the inner core being completely enclosed within the non-conductive outer laminae so that thermal expansion effects due to heating are equalized across the thickness of each vane.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: April 23, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventor: William R. Corcoran, Jr.
  • Patent number: 8395100
    Abstract: A microwave heating construct includes a movable portion defined at least partially by lines of disruption extending between adjacent edges of the bottom panel. The movable portion is adapted to be moved towards the interior space for maintaining a food item in an elevated position within the construct. A susceptor or other microwave energy interactive element may be joined to the movable portion to enhance heating, browning, and/or crisping of the food item.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: March 12, 2013
    Assignee: Graphic Packaging International, Inc.
    Inventors: Vicki Laubhan, Kelly R. Fitzwater, Weston R. Wilson
  • Patent number: 8338764
    Abstract: A reusable self-supporting field director for use in heating an article in a microwave oven is characterized by a plurality of vanes, each vane extending radially outwardly from a central axis and being angularly adjacent to two other vanes. The vanes are attached to each other at their inner ends. Each vane has a substrate formed from an electrically non-conductive material, and an electrically conductive sheath encasing the substrate so that a portion of the first and second major surfaces are covered by an electrically conductive material. The sheath is arranged on the substrate in a laterally symmetric fashion so that thermal expansion effects due to heating are equalized across the thickness of each vane.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: December 25, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Mehrdad Mehdizadeh, William R. Corcoran, Jr.
  • Patent number: 8338765
    Abstract: A reusable self-supporting field director for use in heating an article in a microwave oven is characterized by a plurality of vanes, each vane extending radially outwardly from a central axis and being angularly adjacent to two other vanes. The vanes are attached to each other at their inner ends. Each vane has a substrate formed from an electrically non-conductive material and an electrically conductive wrapper that wraps the substrate so that a portion of the first and second major surfaces are covered and the radially outer end of each vane is wrapped by an electrically conductive material. The wrapper and the substrate are arranged in a laterally symmetric fashion so that thermal expansion effects due to heating are equalized across the thickness of each vane.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: December 25, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Mehrdad Mehdizadeh, William R. Corcoran, Jr.
  • Patent number: 8269154
    Abstract: Ovenware for microwave ovens which contain a composition comprising a susceptor and a thermoplastic or thermoset polymer are improved when the composition also has a thermal conductivity of about 0.7 W/m° K. or more. Heat generated by absorption of microwave radiation by the susceptor is more readily conducted to the food being cooked when the thermal conductivity of the composition is high, particularly when the part containing the susceptor is relatively thick. Also described are designs for various pieces of ovenware containing this composition.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: September 18, 2012
    Assignee: Ticona LLC
    Inventors: Michael Robert Samuels, Marion Glen Waggoner, Joel D. Citron, Roger Moons, Charles J. Molnar
  • Patent number: 8263918
    Abstract: A microwave packaging made of a flexible, heat-sealable laminate has a grid structure made of electrically non-conductive cells that do not absorb microwaves, and an electrically conductive metal grid that separates the cells from one another. The metal grid has a layer thickness of at least 1 ?m, and the cells each have a size between 100 mm2 and 1200 mm2. The proportion of the non-conductive area formed by the cells amounts to at least 50% of the total area. A liquid-tight outer film follows a first side of the metal grid directly or by way of at least one connecting layer, and a moisture-absorbent layer follows a second side of the metal grid directly or by way of at least one intermediate layer, and has a polymer base substance and extends essentially over the entire area of the laminate. The microwave packaging is formed from the laminate by heat-sealing.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: September 11, 2012
    Assignee: Nordenia USA Inc.
    Inventor: Maik Hach
  • Patent number: 8178823
    Abstract: A wrap for a microwavable container, such as a cup with a removable lid, the wrap having a separable hinged portion to allow the lid of the container to be removed. The separable portion can then be returned to its original position, and the wrap and enclosed container heated in a microwave oven. During heating, the wrap remains relatively cool to the touch, so that the wrap and container can be removed from the oven by grasping the wrap, without contacting the hot exterior of the container.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: May 15, 2012
    Assignee: Graphic Packaging International, Inc.
    Inventors: James C. Fogle, Jean-Manuel Gomes, Kevin May
  • Patent number: 8071924
    Abstract: Various constructs and systems for heating a dough-based food item in a microwave oven are provided.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: December 6, 2011
    Assignee: Graphic Packaging International, Inc.
    Inventor: Terrence P. Lafferty
  • Patent number: 8063345
    Abstract: A system for heating a food item in a microwave oven is provided. The system may include an inner container and an outer carton including an opening feature that allows for easy opening thereof. The system also may include a microwave energy interactive element.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: November 22, 2011
    Assignee: Graphic Packaging International, Inc.
    Inventors: Scott W. Middleton, Jeffery S. Majetich, Laurence M. C. Lai, Daniel Keefe, Neilson Zeng
  • Patent number: 8026464
    Abstract: Multi-purpose food preparation kits for foods which include dough, at least a portion of which is exposed for cooking, browning, and crisping, and optionally rising. The kits include a support base of susceptor material elevated above a support surface by an elevator member either incorporated with a base or separate therefrom. Kits further include a ring component of susceptor material which surrounds the food product, and which is dimensioned larger than the initial dimensions of the food product, so as to be spaced therefrom, at least initially, prior to cooking. The space inside the ring component allows the dough to rise during cooking without obstruction by the susceptor ring and without imparting thermal energy from the susceptor ring to the dough surface. In one embodiment the susceptor base is provided in the form of a shipping carton.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: September 27, 2011
    Assignee: Nestec S.A.
    Inventors: Derek Joseph Romeo, Paul Andrew Cogley, Amy Lynn Matusheski, Keith Eric Petrofsky, Peter Privert, Uraiwan Tangprasertchai, Steven Paul Greiner, Neil Edward Darin, Joseph R. Brooks
  • Patent number: 7977612
    Abstract: A container for microwavable food has a main container part for accommodating a food product to be cooked and open from above, a cover covering the main container part from above, and at least one insert accommodated in the container part and provided with a plurality of perforations for placing a food product to be steamed on the insert.
    Type: Grant
    Filed: February 2, 2008
    Date of Patent: July 12, 2011
    Inventors: Mariean Levy, Marvin Levy, Paul Lam
  • Publication number: 20110120993
    Abstract: A multi-component package is provided which enables simultaneous heat cooking of a food product which does not require a long cooking time and a food product which requires a longer cooking time. The multi-component package includes a lower container comprising a bottomed, lower container main body for containing a first food product. The container further includes an upper container comprising an upper container main body for containing a second filled food product. A flange of the lower container main body and a flange of the upper container main body are engaged with each other so that the lower container and the upper container are combined integrally. A vapor vent is provided in a lower container lid material, whereby water vapor generated upon heating of the first food product heats the second food product in the upper container.
    Type: Application
    Filed: November 19, 2010
    Publication date: May 26, 2011
    Inventors: Kathryn Marie Birchmeier, Paul Andrew Cogley, Noriko Sakamoto, Koji Otsuka, Takashi Kado
  • Patent number: 7939786
    Abstract: A meal kit for microwave cooking of a multi-component food product is provided that includes at least two sealed packages of ingredients for the multi-component food product. One of the sealed packages of ingredients contains a liquid component of the multi-component food product. The meal kit also includes a cooking tray formed of a microwave-safe material having a bottom wall with an upstanding sidewall extending around the periphery thereof to define an interior of the cooking tray. Outer packaging is provided to contain the sealed packages of ingredients and the cooking tray.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: May 10, 2011
    Assignee: Kraft Foods Global Brands LLC
    Inventors: Jay Edwards, Neil Darin
  • Patent number: 7868274
    Abstract: A microwave energy interactive web includes a reagent that is responsive to heat. The microwave energy interactive web may be used to form a package for heating a food item.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: January 11, 2011
    Assignee: Graphic Packaging International, Inc.
    Inventors: Reinhard Bo{acute over (h)}me, John Cameron Files, Terrence P. Lafferty, Scott W. Middleton, Richard G. Robison
  • Patent number: 7851730
    Abstract: A food support surface is elevated by legs or sidewalls to raise a food product above the floor of the microwave to promote even cooking of the food product. Portions of the side walls extend above the food support surface to provide food product control. The side walls are configured to permit easy access to the food product, thus facilitating removal of the food product from the support surface. A susceptor is disposed on the food support surface to provide conductive heating of the portions of the food product contacting the susceptor during microwave heating. The material and construction of the cooking apparatus provides increased rigidity and support for the food product, while also facilitating cool handling of the cooking apparatus after microwave cooking is complete.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: December 14, 2010
    Assignee: Kraft Foods Global Brands LLC
    Inventors: Gary Herbert Carmichael, Corey Jacob BeVier, Albert Vincent Maslowski
  • Publication number: 20100308034
    Abstract: The present invention relates to an oven door with a wave chokes system for a microwave oven. The oven door includes at least one transparent door panel made of a dielectric material and a metallization enclosing at least partially the transparent door panel. The oven door includes further a plurality of lamellae arranged uniformly on one side of the metallization and at least one front shielding, which is arranged in the centre portion on at least one side of the transparent door panel. The metallization and the lamellae are formed by a coating on the transparent door panel, wherein said coating is made of a conductive material and applied on the transparent door panel. Further, the present invention relates to a corresponding microwave oven. Additionally, the present invention relates to a method for manufacturing an oven door with a wave chokes system for a microwave oven.
    Type: Application
    Filed: July 7, 2008
    Publication date: December 9, 2010
    Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.
    Inventors: Norbert Danzer, Abdel-Ilah Zbat, Martin Gasch, Arnd Hofmann
  • Patent number: 7812292
    Abstract: The present invention relates to a method for processing, storing and heating foodstuffs in a partially metal microwavable bowl, and more specifically, a substantially metallic stackable container with a microwavable transparent portion and a selectively removable lid, wherein the same container can be used to store, ship, heat, and serve a foodstuff to a consumer.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: October 12, 2010
    Assignee: Ball Corporation
    Inventors: Michael Richardson, Jason Kaanta, Vincent Hirsch
  • Publication number: 20100230403
    Abstract: A microwave oven cooking container is provided for evenly cooking foodstuff without risk of sparking during cooking. The container includes at least one compartment, and has at least two separate shields disposed on the container. A first shield is made of a material substantially opaque to microwave energy and is disposed on an outer or an inner surface of the compartment, with a shape generally corresponding to the outer shape of the compartment and optionally having an aperture on the base. The container further includes a lidding configured to seal the container closed, the lidding having a second shield disposed on the lidding, such as at a predetermined distance from the container sidewalls. Further, a multi-compartment container is configured to provide shielding for a food having a low specific heat capacity with one or more compartments arranged around and at least partially surrounding a shielded central compartment for the food.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 16, 2010
    Inventors: Jay Daniel Hodson, Brian David Douglas, Mena Rose Klittich, Lance Layne Cvancara, Andrew D. Lohoff
  • Publication number: 20100163553
    Abstract: A microwave steam cooking container system for cooking foodstuff, comprising a water reservoir, a food container comprising a plurality of apertures on a bottom thereof, an outer wall portion and an inner wall portion, and a microwave shielding material encapsulated between said inner and outer wall portions, a cover comprising an inner wall portion and an outer wall portion, and a microwave shielding material encapsulated between said cover inner and said cover outer wall portions, wherein said food container is stacked and removably placed within said water reservoir, wherein in the assembled position the foodstuff to be cooked is shielded from cooking by direct exposure to microwave energy.
    Type: Application
    Filed: September 18, 2009
    Publication date: July 1, 2010
    Applicant: Dart Industries Inc.
    Inventors: Dimitri M.C.J. BACKAERT, Maartkin DEMUYNCK
  • Publication number: 20100006566
    Abstract: A microwave heating construct comprises a base, a wall extending upwardly around the base for defining a cavity for receiving a food item, and a microwave energy shielding element overlying a lower margin of the wall, the microwave energy shielding element having an upper edge including a substantially incurved portion.
    Type: Application
    Filed: July 9, 2009
    Publication date: January 14, 2010
    Inventors: Laurence M.C. Lai, Sandra M. Tsontzidis, Bing Liu, Angela Chen Li, Neilson Zeng
  • Publication number: 20100000992
    Abstract: A vessel for cooking food includes a cooker container, a boiler container and a lid. The cooker container includes a bottom wall and at least one side wall formed from a microwave shielding material. The bottom wall has one or more apertures. The boiler container receives the bottom wall of the cooker container. The boiler container is formed from a microwave transmitting material. The lid is removably coupled to a top portion of the cooker container. The lid is made from a microwave shielding material.
    Type: Application
    Filed: March 6, 2009
    Publication date: January 7, 2010
    Inventor: Valentine Hechler
  • Publication number: 20090223951
    Abstract: A method of promoting uniform heating of a liquid in a microwave oven, comprises providing a container including an interior space for receiving a liquid, the liquid within the interior space having an uppermost portion and a lowermost portion, providing a microwave energy shielding element for being substantially laterally aligned with the uppermost portion of liquid, and exposing the liquid in the container to microwave energy. The microwave energy shielding element reduces the transmission of microwave energy to the uppermost portion of liquid in the container, which is prone to overheating relative to the lowermost portion.
    Type: Application
    Filed: March 2, 2009
    Publication date: September 10, 2009
    Inventors: Laurence M.C. Lai, Michael J. Shaw
  • Patent number: 7586068
    Abstract: A device and method are provided for protecting the inside of a microwave oven from food splattering during cooking. The device is made of breathable food grade paper, is a truncated cone in shape with a pleated side wall for rigidity and at least one reinforcing structure on a top surface. Top surface reinforcement may be one or more folded paper reinforcement bars or folded paper reinforcement members, shaped as circles, squares, or any other convenient shape. Reinforcement bars may be radial across the top surface or nonradial, and may be linear or curvilinear. The food shield device is made by conventional paper die stamping methods.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: September 8, 2009
    Inventors: Peter Shaw, Michael Hellmann
  • Patent number: 7586067
    Abstract: A food press utensil is disclosed that varies incrementally as needed a weight of the utensil for pressing and cooking different food items on a cooking surface, wherein weight adjustment of the food press, by stacking of a plurality of food presses or other compatible weights, results in even heat distribution on the food to allow for uniform cooking and browning. The food press further can comprise a plurality of apertures through the body of the food press, to allow steam to vent and thus to prevent the food from becoming soggy as it cooks. The food press also can be made to accommodate a surface area of the food that exceeds a surface area of the food press, and thus can be used in any pan or griddle. The invention further can comprise a scraper surface to effect debris removal and preparation of the food cooking surface.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: September 8, 2009
    Inventor: Bruce M. Hill
  • Publication number: 20090208614
    Abstract: Microwavable trays (2) and methods regarding same are provided. In an embodiment, the present invention provides a microwavable tray comprising a first compartment (10) for steaming foods, a second compartment (20) for moderately cooking foods, and a third compartment (30) for grilling or browning foods.
    Type: Application
    Filed: May 23, 2007
    Publication date: August 20, 2009
    Applicant: NESTEC S.A.
    Inventors: Richa Sharma, Kaj F. Knudsen
  • Publication number: 20090114644
    Abstract: The invention relates to a device and method for ensuring more uniform heating of food by microwaves. The method includes providing food in a portion having a predetermined size and shape; and providing a container adapted for receiving and reheating the portion of food in a microwave oven. The container forms a supporting cavity having peripheral sides and a bottom side, with the portion of food placed within the supporting cavity. The peripheral sides of the container are circumferentially shielded by a microwave reflective material that forms a circumference having axial and transverse distances that are determined so as to change the wavelength of resonant modes inside the food thereby resulting in a more uniform heating food pattern.
    Type: Application
    Filed: January 8, 2009
    Publication date: May 7, 2009
    Applicant: NESTEC S.A.
    Inventors: Hua Zhang, Laurence Hayert-Bonneveau, William Yout, Gary Helstern, Gerard Loizeau
  • Patent number: 7525075
    Abstract: A microwave susceptor system for efficiently cooking food in a microwave. The microwave susceptor system includes a base positionable in a microwave, a first platform including a plurality of first openings, wherein the first platform is attached to the base and a second platform including a plurality of second openings, wherein the second platform is attached to an opposite end of the base. An outer surface of the base, first platform and second platform are comprised of a heat collecting material and a food item is positioned upon the first platform and the second platform.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: April 28, 2009
    Inventors: Jeffrey T. Watkins, James P. Dohanick
  • Publication number: 20090078698
    Abstract: A system for heating a food item in a microwave oven is provided. The system may comprise an inner container and an outer carton including an opening feature that allows for easy opening thereof. The system also may include a microwave energy interactive element.
    Type: Application
    Filed: November 21, 2008
    Publication date: March 26, 2009
    Inventors: Scott W. Middleton, Jeffery S. Majetich, Laurence M.C. Lai, Daniel Keefe, Neilson Zeng
  • Patent number: 7491416
    Abstract: A heating attachment for improving uniformity of microwave heating of a food product in a food container. The heating attachment has a microwave shield of microwave-reflective material. An attachment member is configured for attaching the shield to a food container in an operative association in which the container is disposed in a heating space by the shield. In this association, the shield improves the uniformity of microwave heating of a food product within the container. The heating attachment sufficiently surrounds the container in the operative association to capture the container for promoting breakage of the heating attachment when the container is removed therefrom to inhibit or prevent reuse of the heating attachment.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: February 17, 2009
    Assignee: Nestec S.A.
    Inventors: Hua Zhang, Brita F. Sheehan, Mark A. Williamson, Robert Croft, Martin Short
  • Publication number: 20090039076
    Abstract: A multi-compartment microwaveable food container and, in particular, a microwaveable container having at least two compartments with different degrees of shielding to provide different energy inputs to food products contained therein while being heated in a microwave together at the same settings. At least one compartment of the container contains an in-mold label or other type of shielding with microwave-reflective areas to provide the desired shielding properties to the food product contained therein. Additionally, a lid component can also contain an in-mold label or other type of shielding to provide further shielding of the compartment. The two or more food compartments may contain various degrees of shielding provided by complete or partial in-mold labels or other types of shielding.
    Type: Application
    Filed: August 9, 2007
    Publication date: February 12, 2009
    Inventors: Albert Vincent Maslowski, Leonard S. Scarola
  • Publication number: 20090042705
    Abstract: A multi-compartment microwaveable food container and, in particular, a microwaveable container having at least two compartments with different degrees of shielding to provide different energy inputs to food products contained therein while being heated in a microwave together at the same settings. At least one compartment of the container contains an in-mold label or other type of shielding with microwave-reflective areas to provide the desired shielding properties to the food product contained therein. Additionally, a lid component can also contain an in-mold label or other type of shielding to provide further shielding of the compartment. The two or more food compartments may contain various degrees of shielding provided by complete or partial in-mold labels or other types of shielding.
    Type: Application
    Filed: August 9, 2007
    Publication date: February 12, 2009
    Inventors: Albert Vincent Maslowski, Leonard S. Scarola
  • Patent number: 7482561
    Abstract: A spatter guard for covering food in an oven. The guard includes: a first shell configured to cover food, having: a first semi-hemispherical barrier member with a plurality of apertures therein. Additionally, there is a second shell pivotally coupled to the first shell to substantially form a hemispherical barrier and an array of substantially parallel semi-hemispherical barriers. The array includes a second semi-hemispherical barrier member with a plurality of apertures therein. Moreover, the first shell has a plurality of protrusions extending downwardly from a bottom of the first hemispherical barrier member to space the first shell from a surface. Further, there is a flange that extends outwardly from a bottom of the first hemispherical barrier member. Further, the second shell has a protrusion extending outwardly therefrom and is configured to be used as a handle for actuating the second shell between the first and second positions.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: January 27, 2009
    Inventor: Bradley Henderson
  • Patent number: 7482560
    Abstract: Microwaveable container that provides for accelerated microwave cooking times and more uniform internal temperature distribution. The container is manufactured from a laminate structure, the laminate structure including a first layer of microwave-transparent material and a second layer of microwave-reflective material. The second layer has at least one aperture defined therein, the at least one aperture having a width dimension W, a length dimension L, and a perimeter dimension P. The aperture is sized such that at least one of the width dimension W or length dimension L is sized about an energy maximum. Accordingly, the width and/or the length dimension is defined as within ?? of a predetermined dimension D. The predetermined dimension is equal to ¼?+n(½)?, wherein n is an integer and ? is a microwave wavelength associated with a predetermined range of microwave frequencies. Preferably, the predetermined range of microwave frequencies is between about 2.0-3.0 GHz.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: January 27, 2009
    Assignee: Pactiv Corporation
    Inventors: Craig A. Golden, David C. Schiltz, Jim E. Bunds
  • Patent number: 7476830
    Abstract: Various constructs are provided for heating a plurality of different food items to their respective desired serving temperatures in a microwave oven in about the same amount of time.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: January 13, 2009
    Assignee: Graphic Packaging International, Inc.
    Inventors: Scott W. Middleton, Lorin R. Cole, Patrick H. Wnek
  • Patent number: 7414229
    Abstract: A disposable microwave food shield for preventing splatter of food onto the interior surfaces of microwave ovens made from absorbent, yet rigid paper material.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: August 19, 2008
    Inventors: Michael G. Hellmann, Peter J. Shaw
  • Patent number: 7378625
    Abstract: The present invention describes an apparatus used in conjunction with a metallic container adapted for processing, storing and heating foodstuffs in a microwave oven, and more specifically, a substantially metallic stackable container with a microwavable transparent portion, metallic reinforcing member, and a selectively removable lid, wherein the same container can be used to store, ship, heat, and serve a foodstuff to a consumer.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: May 27, 2008
    Assignee: Ball Corporation
    Inventors: Michael Richardson, Jason Kaanta, Vincent Hirsch
  • Patent number: 7355153
    Abstract: A liner unit for a microwave oven. The liner unit has a plurality of disposable liners in a stack and which are adhered to each other to be peeled off each other. Each liner is disposable and will protect the interior surfaces of the oven against splatters and spills. After use, the liner is simply peeled off the stack of liners and discarded. Each of the liners has openings associated with a microwave oven.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: April 8, 2008
    Inventor: Pasquale J. Nuzzolillo
  • Patent number: 7345263
    Abstract: A method for safe and uniform microwave cooking of food articles in a container, comprising providing a microwave permeable container, wherein a portion of said container is covered with a microwave reflective surface to deflect microwaves away from a predefined body of liquid within said container; loading bacon within said container; and exposing said container to microwaves for a predetermined time period.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: March 18, 2008
    Inventor: Valentine Hechler, IV
  • Patent number: 7326895
    Abstract: A spatter guard for covering food in an oven. The guard includes: a first shell configured to cover food, having: a first semi-hemispherical barrier member with a plurality of apertures therein. Additionally, there is a second shell is pivotally coupled to the first shell to substantially form a hemispherical barrier and an array of substantially parallel semi-hemispherical barriers. The array includes a second semi-hemispherical barrier member with a plurality of apertures therein. Moreover, the first shell has a plurality of protrusions extending downwardly from a bottom of the first hemispherical barrier member to space the first shell from a surface. Further, there is a flange that extends outwardly from a bottom of the first hemispherical barrier member. Further, the second shell has a protrusion extending outwardly therefrom and is configured to be used as a handle for actuating the second shell between the first and second positions.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: February 5, 2008
    Inventor: Bradley J. Henderson
  • Patent number: 7323024
    Abstract: Chemical processing apparatuses which incorporate a process vessel, such as a crucible or retort, and which include a gas separation or filtration system. Various embodiments incorporate such features as loose filtration material, semi-rigid filtration material, and structured filtration material. The vessel may include material that is a microwave susceptor. Filtration media may be selected so that if it inadvertently mixes with the chemical process or the reaction products of such process, it would not adversely affect the results of the chemical process.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: January 29, 2008
    Assignee: Babcock & Wilcox Technical Services Y-12, LLC
    Inventors: Jonathan S. Morrell, Edward B. Ripley, David M. Cecala
  • Patent number: 7253382
    Abstract: A container (10) for preparing a comestible article in a microwave oven includes a storage chamber (18) into which a comestible article (c) cooked by exposure to microwave energy is displaced, the storage chamber (18) being characterized by the presence of a microwave shielding material (28) disposed therearound.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: August 7, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Kurt Douglas Raughley
  • Patent number: 7247823
    Abstract: A defrost vessel for a microwave oven includes a body having a certain space therein for receiving a refrigerating load, and an antenna connected to the body for oscillating a microwave into the space of the body. When microwave is supplied into a cavity of the microwave oven, the microwave is oscillated into the space of the body by the antenna and thus the microwave is deeply penetrated up to inside of the refrigerating load. Also, the microwave is secondly emitted into the space of the body from an edge of the slot, thereby completely defrosting the refrigerating load.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: July 24, 2007
    Assignee: LG Electronics Inc.
    Inventors: Won-Hui Lee, Eung-Su Kim
  • Patent number: 7217908
    Abstract: A removable filter/pod compartment is filled with coffee grounds, tea, or other espresso particulate brewing substance and mounted within a water reservoir. Water is placed in the water reservoir. A bottom cover is connected to upper cup assembly to hold the filter/pod compartment in place. A resilient gasket or valve is positioned between the filter/pod compartment and a filtrate passage. A filtrate splash cover may be attached to the upper edges of the filtrate reservoir. The assembled beverage maker is placed into a microwave oven. As water in the water reservoir begins to heat up, steam is generated, and hot water is displaced upwards through the filter/pod compartment and particulate brewing substance. The heated beverage is automatically emptied into the filtrate reservoir, which is designed to function as a drinking cup for individually-sized portions.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: May 15, 2007
    Assignee: Micro Lungo, Inc.
    Inventors: Mario Orrico, Stuart Kofard, Rudy Avramovich
  • Patent number: 7183527
    Abstract: The installation includes a microwave heater station (14) having a microwave applicator, and a support (10) suitable for supporting the receptacles (12) in the heater station. The support (10) has at least one receptacle zone (20) which is defined by the surface (10A) of the support and by a metal band (24A, 24B) fixed to the support. The zone (20) serves to support a receptacle (12) whose bottom stands on the surface (10A) of the support and whose side wall (12B) is surrounded by the band. The support can be a conveyor bringing the receptacles into the heater station.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: February 27, 2007
    Assignee: M.E.S. Technologies
    Inventors: Alain Germain, Andre-Jean Berteaud, Mostafa El Haba, Patrick Mahe
  • Patent number: 7154073
    Abstract: The present invention provides a tray for frozen food enabling frozen food such as frozen sushi on the tray to be suitably thawed and to provide a frozen food package or a frozen sushi package using this tray, and a method of thawing frozen sushi in this package. The tray for frozen food 1 comprises a base 3, concavities 2 caved in the base 3, a surrounding wall 4 standing from the periphery of the base 3, a flange 5 composing the top end of the surrounding wall 4, a downward flap 6 extending downwardly from the outer peripheral edge of the flange 5, an overhanging portion 7 overhanging outward from the lower edge of the downward flap 6, ribs 8 formed at corners between the base 3 and the surrounding wall 4, and bulges 9 standing from the base 3. The tray 1 is composed of a body 1a made of a synthetic resin and a dielectric material layer 1b formed on the outer surface of the body 1a.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: December 26, 2006
    Assignee: Kiyari Co., Ltd.
    Inventors: Shuichi Iwai, Nobuhiro Kobayashi
  • Patent number: 7112771
    Abstract: A container for food and beverage products, and more specifically, a substantially metallic container with a microwavable transparent portion and a selectively removable metallic lid, wherein the container can be used in a conventional microwave oven.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: September 26, 2006
    Assignee: Ball Corporation
    Inventors: Michael D Richardson, Jason Kaanta, Vincent A. Hirsch
  • Patent number: 7064307
    Abstract: A container commonly usable for electromagnetic cooking heaters and microwave ovens. A resin container commonly usable for electromagnetic cooking heaters and microwave ovens having an aluminum thin, film on the bottom thereof for storing food therein. The aluminum thin film is 5–30 ?m in thickness and 70 cm2 in area, and has no projections having a curvature radius of less than 2 cm over the entire surface thereof. The aluminum thin film covers 30–80% of the bottom area of the container.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: June 20, 2006
    Assignee: Ajinomoto Co., Inc.
    Inventors: Shigenobu Harano, Satsuki Kosaka, Toru Ikeda