With External Electrical Circuit Connection Or Disconnection Means Patents (Class 219/435)
  • Patent number: 6225605
    Abstract: Electrical cooking appliance, notably a fryer, having a case (1) forming a housing (2) provided to receive a removable bowl (3), the bowl having lateral walls (4) and a base (5) under which is fixed a shielded heating element (6) having two extremities (7) each terminated by a connection terminal (8). An electric connector (10) is mounted in the case (1), the connector having electrical contacts (12) disposed opposite openings (11) provided to receive the terminals (8) of the shielded heating element (6), during introduction of the bowl (3) into the housing (2). The connector (10) is mounted to be movable in lateral translation relative to the base of the case (1) and the openings (11) have bevel edges (13) provided to guide the terminals (8) of the heating element (6) toward the electrical contacts (12).
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: May 1, 2001
    Assignee: SEB S.A.
    Inventors: Bernard Beugnot, Dominique Federico, Laurent Sestier
  • Patent number: 6172339
    Abstract: An electric cooking appliance having a housing receiving a removable bowl, a heating element in thermal contact with the bowl when the bowl is seated in the housing, a heat adjuster, an ultimate safety switch to act in case of failure of the heat adjuster, and a thermal limit switch mounted in the housing. The thermal limit switch is set to be triggered before the ultimate safety switch if the bowl in not seated in the housing.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: January 9, 2001
    Assignee: SEB S.A.
    Inventor: Jean-Marie Thevenin
  • Patent number: 6091058
    Abstract: A thermal treatment system warming basin for warming a sterile liquid or medium includes a heating pad disposed on the exterior surface of the basin floor in various configurations (e.g., spiral, `I`, `X` or serpentine configurations, multiple heating pad segments disposed about the basin floor, etc.) to prevent damage to a sterile surgical drape placed over the system when objects are placed within the basin. The configurations cover a portion of the basin floor to permit the basin to absorb thermal energy that may otherwise be absorbed by and cause damage to the drape. In addition, a thermal treatment system and corresponding sterile surgical drape may include a variety of mechanisms to ensure sterility of a sterile liquid within a basin. In particular, the drape may include a reflective material segment to reflect infrared light emitted from an infrared light source toward a detector to indicate the proper positioning and/or presence of the drape on the thermal treatment system.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: July 18, 2000
    Assignee: O.R. Solutions, Inc.
    Inventors: Durward I. Faries, Jr., Bruce R. Heymann, Calvin Blankenship
  • Patent number: 6072161
    Abstract: A beverage container is disclosed for keeping liquid evenly heated. The beverage container includes a cup, a heating element, and a removable battery power source. The cup has an inner sidewall surface, an outer sidewall surface, an inner bottom surface, and an outer bottom surface. The inner sidewall surface and inner bottom surface are shaped to hold liquid. The heating element is completely enclosed between the inner sidewall surface and the outer sidewall surface. The heating element heats the inner sidewall surface which then heats the liquid. An insulating layer is included between the heating element and the outer sidewall surface to keep the outer sidewall surface cool while the inner sidewall surface is heated. The battery power source is capable of being temporarily secured to the outer bottom surface of the cup and is utilized to keep the heating element energized to a predetermined level while the battery power source is secured to the cup.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: June 6, 2000
    Inventor: Todd Anthony Stein
  • Patent number: 6013901
    Abstract: A heated container includes a cup with a heating coil for heating the cup upon the receipt of power. Further included is a timer that is adapted to transmit an activation signal for a predetermined amount of time upon at least the instantaneous receipt thereof. Connected to the timer is a motion sensor for transmitting the activation signal thereto upon the detection of movement of the base and cup. A relay is connected between the timer, heating coil and a battery. The relay is adapted to allow the transmission of power from the battery to the heating coil only during the receipt of the activation signal.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: January 11, 2000
    Inventor: Manon Lavoie
  • Patent number: 5951900
    Abstract: The automatic temperature measurement based power control device, preferentially on the pot lid, allows for wire or wireless selective power control of one or more power sources through identification of the controlled power source, as well as for the accordingly surveyed food preparation following the pre-set program. The automatic temperature measurement based power control device, referred to in this invention, comprises one or more portable units (20), detachably mounted on the lids (21, 21', 21", . . . ) of the cooking pots (23, 23', 23", . . . ). The portable units (20) allow for wire or wireless one- or two-way communication with the central electronic unit (22 or 22') which is in turn provided with a wire or wireless two-way communication connection with the receiver/transmitter section (24 or 24') of the control units (25, 25') and accordingly with the power sources (26, 26', 26", . . .
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: September 14, 1999
    Inventor: Albin Smrke
  • Patent number: 5866878
    Abstract: A kettle includes a water tank, an electrical element under the bottom of the tank, connecting members to be connected to an electrical power supply and arrangements for regulating the operation of the element. The regulator arrangements and the connecting members include pins to be inserted in a connection module. Electrical connecting wires for connecting the pins are accommodated inside the connection module.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: February 2, 1999
    Assignee: SEB S.A.
    Inventor: Jacques Lacombe
  • Patent number: 5766661
    Abstract: A rice cooker is placed on a turntable, and uncooked rice is poured thereinto. As the uncooked rice is poured-in, a motor rotates the turntable alternately clockwise and counterclockwise to cause the rice to be evenly distributed therein. The cooker carries a signal emitter which is received by a receiver that is connected to the motor for controlling the motor.
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: June 16, 1998
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jae-Bong Lee
  • Patent number: 5701805
    Abstract: Disclosed is a steam pressure rice cooker with an auxiliary steam pressure exhausting device capable of completely exhausting a high temperature and high pressure steam which remains inside the steam pressure rice cooker immediately after a cooking of rice to an outside of the steam pressure rice cooker. In the inside of a lid for opening or shutting an upper portion of a cylindrical inner frame containing a desired quantity of water and rice to be cooked, an auxiliary steam pressure exhausting device is disposed between a handle of the lid and a weight of the lid. An exhaust button of the auxiliary steam pressure exhausting device is slideably disposed in a first opening which is formed through a center of the handle. A supporting member for elastically supporting the exhaust button is disposed in the exhaust button.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: December 30, 1997
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Yong-Jae Sa
  • Patent number: 5539856
    Abstract: An electric coffeemaker includes a first electric heater for heating water for brewing the coffee. A carafe is supported on a base portion of the housing of the coffeemaker. A second electric heater is mounted in heat transfer relation with the base portion for keeping the base portion warm when a coffee-laden carafe is positioned thereon. The operation of the second electric heater is controlled to reduce the heat delivered to the base portion when a relatively lesser quantity of coffee has been brewed and to increase the amount of heat delivered to the base portion when a relatively greater quantity of coffee has been brewed. The operation of the second heater may also be varied to satisfy specific consumer taste preferences.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: July 23, 1996
    Assignee: Black & Decker Inc.
    Inventors: Michael A. Andrew, Walter G. Birdsell, Stephen D. Mowers, Robert A. St. John, Charles Z. Krasznai
  • Patent number: 5429039
    Abstract: A multipurpose cooker, which includes a cooker body a cover hinged to the cooker body, an inner casing fixedly mounted within the cooker body, an electric heater supported on springs inside the inner casing, a heating control circuit, an inductor disposed inside the inner casing, an inner pan received within the inner casing and supported on the electric heater, wherein the inner pan is forced by the cover to contact the inductor when the cover is closed, causing the heating control circuit to turn on the electric heater; the electric heater is lifted by the springs to move the inner pan away from the inductor when the cover is opened, causing the heating control circuit to turn off the electric heater.
    Type: Grant
    Filed: August 30, 1994
    Date of Patent: July 4, 1995
    Inventor: Kwei T. Chang
  • Patent number: 5208896
    Abstract: An electrically warmed baby bottle and recharging system are provided. The baby bottle is a container made of an electrically non-conductive material with a heating wire embedded in its walls. Mounted below the container is a temperature regulation system including a thermostat, a rechargeable battery and an on-off switch enclosed within a water-tight housing. The electrically warmed baby bottle fits into a battery charger which is designed with plug prongs which enter the water-tight housing through self-sealing ports so as to recharge the battery.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: May 4, 1993
    Inventor: Alexander Katayev
  • Patent number: 5072095
    Abstract: Apparatus for warming coffee or other beverage includes a warmer plate on which a vessel holding the beverage to be warmed is set, a heater for heating the warmer plate, circuitry for controlling the time the warmer plate is in a heating condition and a weight sensitive switch for enabling the circuitry only when a vessel of pre-determined weight is on the warmer plate. The circuitry further includes components for reinitializing the time the warmer plate is in a heating condition after a vessel is removed from the warmer plate under predetermined time conditions and then replaced thereon.
    Type: Grant
    Filed: November 29, 1990
    Date of Patent: December 10, 1991
    Assignee: Mr. Coffee, Inc.
    Inventor: Ronald J. Hoffman
  • Patent number: 4982654
    Abstract: An automatic electric kettle of improved design comprises a water vessel (1) closed by a lid (2), an electric heating resistor (3) fixed on the bottom wall (4) of the vessel, and a steam flow duct (14) which extends to the full height of the vessel. The lower end of the duct has its opening opposite to the temperature-sensitive element (15) of the temperature limiter (12).
    Type: Grant
    Filed: January 24, 1990
    Date of Patent: January 8, 1991
    Assignee: Seb S.A.
    Inventor: Christian Bourgeois
  • Patent number: 4852471
    Abstract: Disclosed is a semiautomatic frying apparatus including a food carrying basket having a forward mounting lip and a rearward handle. The apparatus includes a basket-supporting shaft having a lip-engaging cradle for mounting the basket to the shaft. Disposed beneath the shaft, in a position to receive the basket upon rotation of the shaft, is a vessel holding heated cooking medium such as oil. A plate-like heater disposed beneath the vessel in heating contact therewith includes a bottom surface having a recess for mounting one or more temperature sensors, the recess opening into an airflow cavity. The frying apparatus is disposed within a cabinet and a fan and filter, also disposed within the cabinet, provides an air flow therethrough. A door connected by linkage to the basket-supporting shaft selectively blocks air flow through the cavity beneath the heating plate, and when opened to an unblocking position, purges heated air from the recess air, providing compensation for the temperature sensors therein.
    Type: Grant
    Filed: November 10, 1987
    Date of Patent: August 1, 1989
    Assignee: JVJ Enterprises, Inc.
    Inventor: James P. Lansing
  • Patent number: 4754122
    Abstract: In an electric kettle which includes a water-heating vessel (1) and a supporting base-plate (14) connected to the power supply system by a flexible cord, it is no longer necessary to disconnect the supply cord before removing the vessel from its base-plate. The user simply pulls a trigger (20) housed within the kettle handle (21), thereby releasing electric coupling elements (16, 17 ; 18, 19) which connect the base-plate to the vessel.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: June 28, 1988
    Assignee: SEB S.A.
    Inventor: Michel Coppier
  • Patent number: 4751368
    Abstract: A food warming device (21) in which a plate (22, 22a) has an electrical resistance heating element (26, 26a) mounted to a bottom wall (24, 24a) thereof and an electrical switch (23) is mounted in a support surface (31) below the plate (22). The switch (23) includes a movable element (41) which is mounted for movement between a first position electrically coupling the switch (23) to terminal assembly (32, 32a) on the plate (22) and closing the switch (23) and a second position electrically uncoupling the switch (23) from the terminal (32) on the plate (22) and opening switch (23). The movable element (41) is preferably gravity biased toward the open position, and a magnet (44) is mounted to one of the plate (22) and the movable element (41) to displace the movable element (41) against gravity biasing from the second position to the first position when the plate (22 ) is placed on the support surface (31) proximate the switch (23).
    Type: Grant
    Filed: November 17, 1986
    Date of Patent: June 14, 1988
    Inventor: Theodore S. Daifotes
  • Patent number: 4726288
    Abstract: A heatable container assembly with a removable support cover containing a heater, sensors and interconnections.
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: February 23, 1988
    Assignee: JVJ Enterprises, Inc.
    Inventor: James P. Lansing
  • Patent number: 4626660
    Abstract: An oven is provided which has varying temperature zones. The oven is prepared from a pair of opposed elongate metal members, each heated at adjacent ends and a cavity defining a thermally insulating member between the metal bar.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: December 2, 1986
    Assignee: The Dow Chemical Company
    Inventor: Louis C. Rubens
  • Patent number: 4574184
    Abstract: The invention relates to a cooking vessel comprising a cooking pan and cover, especially a steam pressure cooker, to which a temperature-dependent resistor is attached as a temperature sensor with an attached computing device for the determination of the temperature inside the cooking pot, and for the transmission of electrical signals corresponding to the temperature detected.In order for the cooking vessel to be equipped for an exact measurement of temperature without greatly increasing costs, a measuring point covered by the handle is provided, to which a temperature sensor is attached. One of the handles of the cooking pot or cover carries a plug accommodation with connection contacts, which mechanically accommodates a computing device formed as a plug unit, and connects electrically with the temperature sensor.
    Type: Grant
    Filed: May 9, 1985
    Date of Patent: March 4, 1986
    Assignee: Kurt Wolf & Co. KG
    Inventors: Kurt Wolf, Wolfram K. Andre
  • Patent number: 4535229
    Abstract: The invention relates to a cooking vessel comprising a cooking pan and cover, especially a steam pressure cooker, to which a temperature-dependent resistor is attached as a temperature sensor with an attached computing device for the determination of the temperature inside the cooking pot, and for the transmission of electrical signals corresponding to the temperature detected.In order for the cooking vessel to be equipped for an exact measurement of temperature without greatly increasing costs, a measuring point covered by the handle is provided, to which a temperature sensor is attached. One of the handles of the cooking pot or cover carries a plug accommodation with connection contacts, which mechanically accommodates a computing device formed as a plug unit, and connects electrically with the temperature sensor.
    Type: Grant
    Filed: October 6, 1983
    Date of Patent: August 13, 1985
    Assignee: Kurt Wolf & Co. KG
    Inventors: Kurt Wolf, Wolfram K. Andre
  • Patent number: 4523083
    Abstract: A beverage warmer assembly comprising a support unit having an electrically heated surface on which a beverage-container unit such as a cup may rest, the container unit and the support unit having magnetically coacting elements so mounted to the respective units that a switch is (a) connected for electrical heating of the surface for one orientational relation of container-unit seating on the surface and (b) is inoperative for a different orientational relation of container-unit seating on the surface.
    Type: Grant
    Filed: April 2, 1984
    Date of Patent: June 11, 1985
    Assignee: Hamilton-Dunn Research Co.
    Inventor: William H. Hamilton
  • Patent number: 4499367
    Abstract: A drawing recipient borne by a body is associated with heating means. A filtering recipient is also associated with heating means and in the operational position is raised and laterally off-set with respect to the drawing recipient. A spout serves as a spill-way from the bottom of the filtering recipient to the drawing recipient. The filtering recipient is pivotably mounted with respect to the body, between the aforesaid operational position in which it overhangs the body, and a fold-away position in which it is brought back over the drawing recipient.
    Type: Grant
    Filed: June 7, 1983
    Date of Patent: February 12, 1985
    Assignee: SEB S.A.
    Inventor: Pierre Schwob
  • Patent number: 4493978
    Abstract: A serving dish having a heater, and a method for assembling the dish. An electric heater including a resistance element enclosed in a heat conducting and electrical insulating material is adhesively bonded against the bottom of a serving dish of ceramic or the like. Holes through the material covering the resistance element provide for electrical contact with the resistance element, and these holes are filled with solder. A bottom plate of stainless steel or other electrically conductive sheet is adhesively bonded over the heater, and the bottom plate is heated to melt the solder and cause the solder to fuse to the bottom plate. The entire bottom plate has its edges sealed by a silicone rubber sealant or the like to encapsulate the heater. The resulting dish has a bottom plate to give a neat appearance, the bottom acting as electrical contacts to energize the heater and heat the contents of the serving dish.
    Type: Grant
    Filed: July 11, 1983
    Date of Patent: January 15, 1985
    Inventor: Roger A. Starnes
  • Patent number: 4458139
    Abstract: An electrically heated cooking utensil consisting of a base incorporating an electrically heated heating plate (13) having a flat upper surface and a utensil such as a frying pan (10) dutch oven or wok having a handle (11) the bottom (12) of the utensil being flat and in use lying in close contact with the heating plate (13) the utensil and the base having on them interengaging elements (23), (16) such that when the bottom of the utensil is placed on the base movement of one of said interengaging elements (23), (16) causes the elements to interlock so that the base and the utensil are interconnected in such a manner that the utensil and base can be lifted together by use of the handle and so that the utensil can be detached from the base while the base is resting on a supporting surface. Preferably interengaging elements (23) on the base are moveable by means of a lever (19) projecting beyond the base.
    Type: Grant
    Filed: July 21, 1982
    Date of Patent: July 3, 1984
    Assignee: Breville Holdings Pty., Limited
    Inventor: John W. McClean
  • Patent number: 4441016
    Abstract: An electric rice cooker is disclosed which performs auxiliary cooking such as "twice cooking" by changing the operating time of auxiliary cooking in accordance with the actual cooking amount, immediately after the main cooking is completed. The actual temperature of a kettle which contains rice and water and which is detachably mounted in a thermal insulating frame is measured by a thermistor. Upon deenergization of an electric heater after main cooking is completed, the actual kettle temperature decreases. A time interval for the kettle temperature to go from a first temperature at the completion of main cooking to a second temperature is closely related to the actual cooking amount. The auxiliary cooking time interval is determined by a control circuit arranged in a case in accordance with the time interval described above.
    Type: Grant
    Filed: January 27, 1983
    Date of Patent: April 3, 1984
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Hiroyuki Oota, Terutaka Aoshima, Kenji Yamamori, Ryuho Narita
  • Patent number: 4431906
    Abstract: An electric rice cooker is disclosed which includes a cooking kettle for containing rice and water, a removable lid member covering the top of the kettle, a heater provided adjacent to the outer bottom surface of the kettle to heat the kettle, and a thermistor for measuring the actual kettle temperature. A cooking amount measuring circuit for detecting the actual amount of kettle contents every time a cooking operation is performed, and a control circuit for controlling the operation of the heater by determining the proper time at which the heater should be turned OFF in accordance with actually measured data obtained during the cooking operation which is being performed, are arranged in a case.
    Type: Grant
    Filed: December 14, 1982
    Date of Patent: February 14, 1984
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Hiroyuki Oota, Terutaka Aoshima, Ryuho Narita, Kenji Yamamori
  • Patent number: 4399351
    Abstract: An electric heat exchange cooking unit for use, selectively, with any one of a plurality of different cooking receptacles, has a heat exchange member including locking mechanism for mechanically constraining the flat undersurface of the cooking receptacle in intimate face to face contact with the top, flat surface of the heat exchange member upon the selected cooking receptacle being fully locked in place. The heat exchange member is of cast metal having embedded therein a continuous electrical heating element of such configuration as distributes heat substantially uniformly throughout the upper surface of the heat exchange member while at the same time providing a central opening within which is received a remote-indicating temperature sensor for measuring the degree of heat being uniformly applied to the food being cooked in the selected cooking receptacle.
    Type: Grant
    Filed: October 15, 1981
    Date of Patent: August 16, 1983
    Inventor: William Koff
  • Patent number: 4375028
    Abstract: An electric kettle comprises a bowl closable by a lid. An electric element is connected to the lid and is thereby suspended within the bowl. A spout is provided for pouring and through which the bowl can be filled with water. Means are also provided for the connection of the element to an electricity supply.
    Type: Grant
    Filed: March 31, 1981
    Date of Patent: February 22, 1983
    Assignee: Pifco Limited
    Inventor: Paul A. P. Wood
  • Patent number: 4362923
    Abstract: Disclosed is a rice cooker comprising a pot for containing rice and water, a heater provided at the bottom of the pot for heating the pot, a sensor for sensing temperature of the pot to produce a detecting signal when the temperature of the pot reaches a predetermined value, and a drive circuit which responds to the detecting signal from the sensor to stop the heating of the heater. The drive circuit in the cooker, after the operation start, heats the pot to about 40.degree. C. by the heater for rice immersion, and after keeping the pot warmth constant for a given period, drives the heater at the rated calorific value for rice cooking.
    Type: Grant
    Filed: March 20, 1981
    Date of Patent: December 7, 1982
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventor: Terutaka Aoshima
  • Patent number: 4356385
    Abstract: Apparatus for precisely regulating the paraffin temperature in an electrically heated tissue processor comprises a sensor which is detachably fastened to the tissue processor by a clamp so as to be partially immersed in the paraffin. A controller, coupled to the sensor, and coupled in series with the tissue processor heating element by a plug tap across a source of alternating current voltage, is responsive to the conduction state of the sensor and controls the delivery of power to the tissue processor heating element in accordance with the paraffin temperature as sensed by the sensor.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: October 26, 1982
    Assignee: Pathology Products Ltd.
    Inventors: Arthur A. Stein, Max Goldman
  • Patent number: 4307287
    Abstract: The electric cooking appliance has a casing for receiving a removable vessel in which food to be cooked is placed. An electrical heating element is provided in the casing for heating the vessel. The supply of electrical power to the heating element is controlled by a control device including a supply switch and a manually settable control circuit arranged during the normal cooking phase to intermittently place the supply switch in its conducting state so that power is supplied to the heating element intermittently. Prior to the normal cooking phase, the control circuit maintains the supply switch continuously in its conducting state for an initial period of time which is independent of the manual setting of the control circuit.
    Type: Grant
    Filed: November 13, 1980
    Date of Patent: December 22, 1981
    Assignee: Moulinex
    Inventor: Roger Weiss
  • Patent number: 4253013
    Abstract: The shaver warmer of this invention includes a heat transfer portion which almost closely fits the shaver head of the electric shaver to be warmed. A heat supply portion is directly connected to the heat transfer portion and a temperature control portion controls the heating temperature by detecting the temperature of the heat transfer portion. The shaving head of the electric shaver can thereby be heated to a predetermined temperature in a relatively short time so that advantage may be taken of the relatively large thermal capacity of the shaving head of an electric shaver.
    Type: Grant
    Filed: August 11, 1978
    Date of Patent: February 24, 1981
    Assignee: Mabuchi Motor Co., Ltd.
    Inventor: Kenichi Mabuchi
  • Patent number: 4217482
    Abstract: A control circuit useful in commercial cooking appliances, such as deep fat fryers, having electric heating elements and separate operating and safety controls including full power transmitting contactors for independently energizing and/or deenergizing the heating elements. The simplified control is economical, but reliable, and utilizes the safety control contactor connected in series power circuit with the heating elements and a single relay to establish both an on operating circuit for normal cooking conditions where the operating control cycles on and off to maintain the desired operating temperatures and a safety circuit that deenergizes all heating elements should an overheat condition occur and further that requires manual release or reset to again render the appliance operative.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: August 12, 1980
    Assignee: McGraw-Edison Company
    Inventor: Gurinder S. Wadia
  • Patent number: 4187412
    Abstract: An automatic control for egg cookers, baby bottle warmer, etc. is designed around a conventional slide switch of the type normally biased to the open position. Manually actuated means are provided to move the slide switch to its ON position, whereupon a mechanical latch automatically latches onto the knob of the slide switch to hold it in its ON position. When the cooking has been completed, a bi-metal releases the latch and permits the biasing means to open the switch and terminate the heating.
    Type: Grant
    Filed: July 10, 1978
    Date of Patent: February 5, 1980
    Assignee: Sunbeam Corporation
    Inventors: Peter J. Ernster, Ernest Canamero, James B. Cockroft
  • Patent number: 4165456
    Abstract: A presser member, into which the container is loaded, is manually depressable against the action of its return spring into pressure-contact engagement of the container with an electric heating plate containing a PTC heating resistor. The depression stroke produces closure of a switch to energize both the PTC resistor and an electromagnet keeping the presser member in its depressed condition. A timer circuit opens the switch at the elapse of a prealably experimentally determined heating time during which the liquid reaches its consumption temperature, whereby heating is terminated and the return spring lifts the pressure member with the container to unloading position.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: August 21, 1979
    Assignee: P. Ferrero & C. S.p.A.
    Inventor: Amilcare Dogliotti
  • Patent number: 4164645
    Abstract: A device for heating a drink in a thermoplastics container sealed by a metal cover, in which the container is placed in a support upside-down and depressed to bring its cover into contact with an electrical heater, the depression of the container support operating a microswitch which energizes the heater and a support-retaining electromagnet to heat the container for a timed interval. The resistance of the heater is measured during heating by a Wheatstone bridge and utilized to regulate the temperature reached by the heater.
    Type: Grant
    Filed: January 16, 1978
    Date of Patent: August 14, 1979
    Assignee: P. Ferrero C. S.p.A.
    Inventor: Amilcare Dogliotti
  • Patent number: 4160152
    Abstract: A heating unit is provided in the form of an open topped container with a side wall and a bottom. The side wall has a plurality of bosses each of which has a plate-receiving groove. The bottom has on its upper surface elongated seat defining flanges, a barrier wall projecting between and extending laterally beyond a pair of seat defining flanges to separate the seats and to separate a pair of wires, and labyrinth walls defining a strain-relief circuitous wire passage. A pair of spring terminals are provided, each having a U-shaped part defined by two divergent leg parts one of which is seated in one of the seats and the other of which extends upwardly away from the bottom to a free end. A disc of PTCR material is mounted on the spaced free ends. A plate is snapped into the plate-receiving grooves of the bosses.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: July 3, 1979
    Inventors: John W. Wightman, Lawrance W. Wightman
  • Patent number: 4095090
    Abstract: An improved container for heating beverages, soups, stews and like foods containing liquid matter which includes at least one electric heating unit embedded within the side and/or bottom walls of the container, said heating unit being connectable to a source of electric energy, and means responsive to the position of the container with respect to the supporting surface interposed between said heating unit and the electric energy source for switching on or off electric current to the heating unit.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: June 13, 1978
    Inventor: Anthony Pianezza
  • Patent number: 4049949
    Abstract: A golf ball warmer adapted to warm and store at the desired temperature the golf balls and a heat retaining carrying case for the warmed balls.
    Type: Grant
    Filed: May 1, 1975
    Date of Patent: September 20, 1977
    Inventor: Ron Fitzsimons
  • Patent number: 4037081
    Abstract: A lunch bucket containing an electric heating coil that can be plugged into a household electric outlet, so to heat up a compartment in the bucket for holding hot foods, while another compartment is insulated therefrom so to contain cold foods.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: July 19, 1977
    Inventors: Bobby V. Aldridge, George Spector
  • Patent number: 3969610
    Abstract: A liquid heating device is used to heat a liquid at a preselected time for a predetermined length of time such as in percolating coffee. The device broadly consists of a cylindrical container having a closed bottom base, a removal top lid cover, a pouring spout affixed to the sidewall of the container as well as a U-shaped handle affixed to the sidewall of the container. A transparent tube is provided as a means of indicating the liquid level within the container. A control panel on the bottom outside periphery of the sidewall of the container has an inlet electrical receptacle, an indicator light unit, a two way switch assembly, and a timer assembly.
    Type: Grant
    Filed: January 20, 1975
    Date of Patent: July 13, 1976
    Assignee: Lawrence Peska Associates, Inc.
    Inventors: Helen Ratti, Charles Ratti
  • Patent number: 3931494
    Abstract: An improved warming container which may comprise either a cup, pot, bowl or the like, and which includes an electric heating element built into its bottom and side walls, the heating element being connected to a rechargeable battery, thermostat and switch located on its underside and which are completely enclosed so to allow the vessel being fully submerged during washing without damage to the electric system.
    Type: Grant
    Filed: April 1, 1975
    Date of Patent: January 6, 1976
    Inventors: Barbara Fisher, George Spector