EP2768362A1 - Gril pourvu d'un système de sécurité - Google Patents

Gril pourvu d'un système de sécurité

Info

Publication number
EP2768362A1
EP2768362A1 EP12842342.3A EP12842342A EP2768362A1 EP 2768362 A1 EP2768362 A1 EP 2768362A1 EP 12842342 A EP12842342 A EP 12842342A EP 2768362 A1 EP2768362 A1 EP 2768362A1
Authority
EP
European Patent Office
Prior art keywords
grill
receptacle
safety mechanism
powered
electric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12842342.3A
Other languages
German (de)
English (en)
Other versions
EP2768362A4 (fr
Inventor
Bonnie Lee Buzick
Robert James Bair
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAIR, ROBERT JAMES
Buzick Bonnie Lee
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2768362A1 publication Critical patent/EP2768362A1/fr
Publication of EP2768362A4 publication Critical patent/EP2768362A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills
    • A47J37/08—Bread-toasters
    • A47J37/0807—Bread-toasters with radiating heaters and reflectors

Definitions

  • This invention relates to cooking appliances for use in domestic and commercial kitchens.
  • the invention relates particularly to electric grills that can be used to cook food in a way that removes fat from the food that is cooked.
  • the invention relates to a safety systems for an electric grill.
  • the present application addresses the need for additional safety systems in grills to prevent fires from occurring.
  • One way to prevent fires is to clean the drip tray between each use.
  • Methods and systems are provided to encourage this by forcing the user to interact with the tray between each use.
  • an electric grill for cooking food items comprises a receptacle for receiving fats and breakaway solids generated during the cooking of the food, and a safety mechanism configured to prevent the grill from operating without at least one movement of the receptacle subsequent to the grill being powered on.
  • the safety mechanism is configured to prevent the grill from operating without at least one movement of the receptacle subsequent to the grill being powered on and powered off.
  • the safety mechanism comprises a mechanical lock configured to mechanically engage the receptacle prior to the grill being powered off and mechanically disengage the receptacle when the unit is powered off.
  • the safety mechanism comprises a first biasing element to urge the receptacle out of the grill. The mechanical lock is configured to lock the receptacle in place while the receptacle is under outward bias by the first biasing element.
  • the safety mechanism comprises a moveable stop configured to hold the receptacle against the biasing element when the receptacle is placed into the grill prior to being powered on.
  • the safety mechanism comprises a plunger configured to engage the receptacle after the grill is powered on and to hold the receptacle against the force of the biasing element.
  • the moveable stop is biased to maintain a position against the receptacle to prevent the receptacle from moving under the influence of the first biasing element.
  • the first biasing element is a spring.
  • the safety mechanism comprises a mechanical lock configured to mechanically engage the receptacle prior to the grill being powered off and mechanically disengage the receptacle when the unit is powered off.
  • the mechanical lock comprises: a power on off switch; a plunger connected to the power on off switch; a spring configured to urge the receptacle out of the grill; a moveable stop disposed below the plunger and the moveable stop being biased upward toward the plunger, and configured to hold the receptacle against the spring; and a port in the receptacle, configured to receive the plunger, and the port disposed above the moveable stop, wherein when the power switch is placed in an on position, the plunger is pushed through the port, and is configured to push the moveable stop down to disengage the stop from holding the receptacle back against the urging of the spring.
  • a side of the port is configured to abut the plunger when the plunger is pushed through the port, and is pressing down on the stop to move the stop away from the receptacle and the receptacle being released under the bias of the spring. Ejection of the receptacle from the grill is prevented while the plunger is through the port.
  • the safety mechanism comprises a mechanical lock configured to mechanically engage the receptacle.
  • the mechanical lock comprises: a ridge disposed on the receptacle; and a moveable stop configured to engage the ridge, and having slope to guide the ridge over the moveable stop when the receptacle is placed into the grill into its docked position.
  • the safety mechanism comprises an infrared photo-interrupter sensor having an emitter and a receiver, configured with the grill such that when the receptacle is either removed or properly docked into the grill, the status of the photo-interrupter sensor is changed.
  • the safety mechanism comprises a proximity sensor configured to detect a change in position of the receptacle, wherein the receptacle in its docked position with the grill comprises a first state of the sensor and any position where the grill is not docked comprises a second state of the sensor.
  • the grill is configured to preclude operation of the grill until the state of sensor has changed at least once after the most recent occurrence of the grill being powered off.
  • an electric grill for cooking food items comprises: a receptacle for receiving fats and breakaway solids generated during the cooking of the food; and a safety mechanism configured to prevent a fire in the unit.
  • the safety mechanism comprises a weight sensor disposed below the receptacle configured to output a signal based on the weight of the receptacle.
  • the grill is configured to power off if the weight of the receptacle reaches a predetermined threshold amount.
  • the safety mechanism comprises a liquid level sensor configured to measure the level of liquid in the receptacle.
  • the safety mechanism comprises a temperature sensor configured to measure the temperature inside the receptacle.
  • the grill is configured to power off when the temperature sensor measures above a predetermined temperature.
  • the safety mechanism comprises a proximity sensor configured to detect an obstruction above an opening of the grill.
  • the grill is configured to power down or is precluded from powering on if the proximity sensor detects an obstruction within a predetermined distance from the opening.
  • the safety mechanism comprises a fire suppression system configured to activate if the temperature of the grill reaches a predetermined temperature.
  • a method of ensuring safe operation of an electric grill having drip tray comprises: powering off the grill; detecting that the grill has been powered off; precluding the grill from being powered on subsequent to being powered off, without the drip tray first being moved from its docked position within the grill.
  • FIG. 1 is a perspective view of a grill
  • FIG. 2 is a diagram of a grill having a mechanical safety system
  • Fig. 3 is a diagram of a grill having a mechanical safety system
  • Fig. 4 is a perspective view of a grill having a safety system based on a infrared photo- interrupter sensor
  • Fig. 5 is a perspective view of a grill having a safety system based on a proximity sensor for detection of movement of the drip tray between each use
  • Fig. 6 is a perspective view of a grill having a safety system based on a weight sensor for detection of movement of the drip tray between uses;
  • FIG. 7 is a perspective view of a grill having a safety system based on a liquid level sensor
  • Fig. 8 is a perspective view of a grill having a safety system based on a temperature sensor
  • FIG. 9 is a perspective view of a grill having a safety system based on a proximity sensor for detection of obstructions near the grill;
  • FIG. 10 is a perspective view of a grill having a safety system comprising a fire suppression system
  • FIG. 11 is a perspective view of a grill having a safety system comprising a timing system
  • Fig. 12 is a flow chart of a method for ensuring safe operation of a grill.
  • Implementation of the method and/or system of embodiments of the invention can involve performing or completing selected tasks manually, automatically, or a combination thereof. Moreover, according to actual instrumentation and equipment of embodiments of the method and/or system of the invention, several selected tasks could be implemented by hardware, by software or by firmware or by a combination thereof using an operating system.
  • a data processor such as a computing platform for executing a plurality of instructions.
  • the data processor includes a volatile memory for storing instructions and/or data and/or a non- volatile storage, for example, a magnetic hard-disk and/or removable media, for storing instructions and/or data.
  • a network connection is provided as well.
  • a display and/or a user input device such as a keyboard or mouse are optionally provided as well.
  • other safety features include, a fire suppression system, temperatures sensors, proximity sensors for detecting obstructions near the grill, weight sensors, liquid level sensors and infrared photo-interrupter sensors for detecting whether the tray has been removed from the grill, since the grill's last operation.
  • an electric grill 100 for cooking food items having a safety system in accordance with one or more aspects of the present invention, comprises a receptacle 105 for receiving fats and breakaway solids generated during the cooking of the food, and a safety mechanism configured to prevent the grill from operating without at least one movement of the receptacle 105 subsequent to the grill being powered on.
  • the grill may be powered on and off via an on off switch 110.
  • the safety mechanism is configured to prevent the grill from operating without at least one movement of the receptacle subsequent to the grill being powered on and powered off.
  • the safety mechanism comprises a mechanical lock 115 configured to mechanically engage the receptacle 105 prior to the grill being powered off and mechanically disengage the receptacle when the unit is powered off.
  • the safety mechanism comprises a first biasing element 120 configured to urge the receptacle 105 out of the grill.
  • the mechanical lock 115 is configured to lock the receptacle in place while the receptacle is under bias from the first biasing element 120.
  • the safety mechanism comprises a moveable stop 125 configured to hold the receptacle 105 against the biasing element 120 when the receptacle is placed into the grill prior to being powered on.
  • the safety mechanism comprises a plunger 130 configured to engage the receptacle 105 after the grill is powered on and to hold the receptacle against the force of the biasing element 120.
  • the moveable stop 125 is biased to maintain a position against the receptacle 105 to prevent the receptacle from moving under the influence of the first biasing element 120.
  • the first biasing element is a spring 120.
  • the spring is housed in a spring box.
  • the safety mechanism comprises a mechanical lock configured to mechanically engage the receptacle 105 prior to the grill being powered off and mechanically disengage the receptacle when the grill is powered off.
  • the mechanical lock comprises: a power on off switch 135; a plunger 130 connected to the power on off switch; a spring 120 configured to urge the receptacle out of the grill; a moveable stop 125 disposed below the plunger 130 and the moveable stop 125 being biased upward toward the plunger 130, and configured to hold the receptacle 105 against the spring 120; and a port 140 in the receptacle, configured to receive the plunger 130.
  • the port 140 is disposed above the moveable stop 125.
  • the plunger 130 is pushed through the port 140, and pushes the moveable stop 125 down to disengage the stop 125 from holding the receptacle 105 back against the urging of the spring 120.
  • a side 145 of the port 140 is configured to abut the plunger 130 when the plunger is pushed through the port 140, and is pressing down on the stop 125 to move the stop away from the receptacle 105, and thus releasing the receptacle and allowing it to move under the bias of the spring 120 until it abuts the plunger 130. Ejection of the receptacle 105 from the grill 100 is prevented while the plunger is through the port 140.
  • the safety mechanism comprises a mechanical lock configured to mechanically engage the receptacle.
  • the mechanical lock comprises: a ridge 150 disposed on the receptacle and the moveable stop 125 configured to engage the ridge.
  • the ridge has a slope 155 to guide the ridge over the moveable stop when the receptacle is placed into the grill into its docked position.
  • the safety mechanism comprises an infrared photo-interrupter sensor 160 having an emitter 165 and a receiver 170, configured with the grill such that when the receptacle is either removed or properly docked into the grill, the status of the photo-interrupter sensor is changed, by virtue of the receptacle 105 either blocking or unblocking the path of the light from the emitter 165 to the receiver 170.
  • the safety mechanism comprises a proximity sensor 180 configured to detect a change in position of the receptacle 105.
  • the receptacle in its docked position with the grill (which is during normal cooking for example, as shown in Fig. 1) comprises a first state of the sensor and any position where the grill is not docked comprises a second state of the sensor.
  • the grill is configured to preclude operation of the grill until the state of sensor has changed at least once after the most recent occurrence of the grill being powered off.
  • the receptacle 105 has a sensor element 185 disposed on a side of the receptacle to function with the proximity sensor 180.
  • an electric grill for cooking food items comprises: a receptacle for receiving fats and breakaway solids generated during the cooking of the food; and a safety mechanism configured to prevent a fire in the unit.
  • the safety mechanism comprises a weight sensor disposed below the receptacle configured to output a signal based on the weight of the receptacle. The grill is configured to power off if the weight of the receptacle reaches a predetermined threshold amount.
  • the safety mechanism comprises a liquid level sensor 195 configured to measure the level of liquid in the receptacle. When liquid reaches the level of contacts 200 of the sensor, the sensor is tripped.
  • the safety mechanism comprises a temperature sensor 205 configured to measure the temperature inside the receptacle 105.
  • the sensor is configured to measure the mean temperature inside the grill.
  • the grill is configured to power off or to preclude being powered on when the temperature sensor measures above a predetermined temperature.
  • the safety mechanism comprises a proximity sensor 210 configured to detect an obstruction 215 above an opening 212 of the grill.
  • the grill is configured to power down or is precluded from powering on if the proximity sensor detects an obstruction within a predetermined distance from the opening.
  • the safety mechanism comprises a fire suppression system 220 configured to activate if the temperature of the grill reaches a predetermined temperature.
  • the safety mechanism comprises a timer 225.
  • the unit can only be powered on by turning the timer to the desired time.
  • the unit is powered on by simultaneously by turning the timer to the desired position.
  • a method 300 of ensuring safe operation of an electric grill having drip tray comprises: powering off the grill 305; detecting that the grill has been powered off 310; precluding the grill from being powered on subsequent to being powered off, without the drip tray first being moved from its docked position within the grill 315.
  • module does not imply that the components or functionality described or claimed as part of the module are all configured in a common package. Indeed, any or all of the various components of a module, whether control logic or other components, can be combined in a single package or separately maintained and can further be distributed across multiple locations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Baking, Grill, Roasting (AREA)

Abstract

Gril électrique pour cuire des aliments, comprenant : un réceptacle destiné à recevoir les graisses et les résidus alimentaires produits lors de la cuisson des aliments ; et un mécanisme de sécurité configuré pour empêcher le gril de fonctionner sans au moins un déplacement du réceptacle postérieurement à la mise sous tension du gril. D'autres éléments de sécurité optionnels comprennent un système d'extinction d'incendie, des capteurs de températures, des capteurs de proximité pour détecter des obstructions à proximité du gril, des capteurs de poids, des capteurs de niveau de liquide et des capteurs photo-interrupteurs à infrarouges pour détecter si le bac récepteur a été retiré du gril depuis la dernière utilisation du gril.
EP12842342.3A 2011-10-17 2012-10-17 Gril pourvu d'un système de sécurité Withdrawn EP2768362A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161627662P 2011-10-17 2011-10-17
PCT/US2012/060694 WO2013059380A1 (fr) 2011-10-17 2012-10-17 Gril pourvu d'un système de sécurité

Publications (2)

Publication Number Publication Date
EP2768362A1 true EP2768362A1 (fr) 2014-08-27
EP2768362A4 EP2768362A4 (fr) 2015-05-20

Family

ID=48141324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12842342.3A Withdrawn EP2768362A4 (fr) 2011-10-17 2012-10-17 Gril pourvu d'un système de sécurité

Country Status (4)

Country Link
EP (1) EP2768362A4 (fr)
AU (1) AU2012326144B2 (fr)
CA (1) CA2959056A1 (fr)
WO (1) WO2013059380A1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1272471B (de) * 1962-09-10 1968-07-11 Rowenta Metallwarenfab Gmbh Brotroester
DE3830632A1 (de) * 1988-09-09 1990-03-22 Braun Ag Elektrischer brotroester
FR2750590B1 (fr) * 1996-07-03 1998-10-09 Seb Sa Friteuse a cuve amovible
US5802958A (en) * 1997-06-16 1998-09-08 Hermansson; Alf E. Cooking grill
US6262399B1 (en) * 1999-09-09 2001-07-17 Eastern Sources Housewares (Hong Kong) Limited Grill
FR2814056B1 (fr) * 2000-09-18 2003-06-20 Seb Sa Appareil electrique de cuisson du type barbecue, a limitation de chauffe
US7573158B2 (en) * 2005-08-29 2009-08-11 Sunbeam Products, Inc. Portable electrical appliance with object sensing assembly
US8631739B2 (en) * 2006-06-22 2014-01-21 Kenyon International, Inc. Grill
EP2111263A2 (fr) * 2007-02-01 2009-10-28 Danfoss A/S Système de protection contre les incendies et procédé de fourniture d'une protection contre les incendies

Also Published As

Publication number Publication date
CA2959056A1 (fr) 2013-04-25
AU2012326144B2 (en) 2017-09-28
WO2013059380A1 (fr) 2013-04-25
EP2768362A4 (fr) 2015-05-20
AU2012326144A1 (en) 2014-07-10

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