Relative Movement, Toast And Support Patents (Class 99/329RT)
  • Patent number: 6129007
    Abstract: An electric automatic pop-up toaster has a carriage and a pivotably connected manually operative arm for moving the carriage to a lowermost position for toasting in well-known manner. At the beginning of each toasting cycle, the arm is horizontal and a latching plate is magnetically held down to hold the arm and the carriage in a lowermost position. The arm presses against a wire spring to hold closed a power switch (not shown) that supplies power to heating elements of the toaster. The latching plate is (magnetically) released at the end of each toasting cycle by a timer. This allows the carriage to move upwards to pop-up toasted bread in a usual way. However should the carriage fail to move upwards when the latching plate is released, the arm is pivoted by a spring and tilted to the position shown in the Figure. The wire is therefore released and enters a slot in a bracket mounted to the carriage. The switch opens and remains open to prevent power being re-instated to the heating elements.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: October 10, 2000
    Assignee: Simatelex Manufactory Co., Ltd.
    Inventors: Chi Tong Chan, Chun Ying Yeh
  • Patent number: 6123012
    Abstract: A toaster includes a housing having an upper wall with bagel half shaped openings; toasting chambers in the housing accessible through the openings and having bagel half shapes; a bread rack in each toasting chamber; inner/outer heating coils surrounding each toasting chamber; electric contacts in the housing for activation of the heating coils; a raising/lowering mechanism connected with the bread racks for moving the bread racks up and down, and including first and second lateral portions connected to opposite ends of the bread racks; first and second guides mounted to the housing for guiding the first and second lateral portions with a small tolerance, a yoke housing connected with the first lateral portion and slidably movable relative to the housing, a lever slidably moving the yoke housing; a yoke slidably movable relative to the yoke housing and closing the electric contacts when the bread racks and yoke are lowered, and a first spring biasing the yoke upwardly; an electromagnet holding the yoke in the
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: September 26, 2000
    Assignee: Sunbeam Products, Inc.
    Inventors: George Hardin, Cliff Spencer
  • Patent number: 6116148
    Abstract: A space-saving multiple tier vertical flow toaster for simultaneously toasting items loaded vertically from the top of the toaster. The first items loaded into the toaster pass through an upper tier and are arrested in a lower tier. The next items loaded are arrested in the upper tier and both the upper tier and lower tier items are toasted sequentially. A control system discharges the lower tier items first and then discharges the upper tier items enabling them to pass through the lower tier and be discharged.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: September 12, 2000
    Assignee: Vardon Golf Company, Inc.
    Inventor: Dillis V. Allen
  • Patent number: 6116149
    Abstract: A toaster has a guide mechanism for a slice support (7), which mechanism comprises a substantially U-shaped rod (15) having a central portion (16) parallel to the longitudinal direction of the slice support and having two arms (17, 18) which are each supported in the respective ends (8, 9) of the slice support as well as in a frame (1) of the toaster.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: September 12, 2000
    Assignee: U.S. Philips Corporation
    Inventors: Jan H. Benedictus, Klaas Kooijker
  • Patent number: 6105486
    Abstract: A low cost toaster having a metal body and plastic end panels. The end panels have cooling inlet vents near their lower ends and the top wall of the metal body has air outlet vents. Ambient air admitted through the inlet vents flows upwardly through the toaster and outwardly through the outlet vents to provide a cooling effect sufficient to allow the use of inexpensive plastic material for molding the end panels. The toaster has a bread lifter made entirely from a wire rod, a bread lifter extension made entirely from a wire rod, and a toast color cam made entirely from a single piece of sheet metal.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: August 22, 2000
    Assignee: Hamilton Beach/Proctor-Silex, Inc.
    Inventors: Lee J. Belknap, John W. Foster
  • Patent number: 6080963
    Abstract: A toaster for everyday household use includes a conveyor which carries items to be toasted past electrical heating panels. The toaster has an entrance wherein the items are inserted horizontally from a feed tray onto the conveyor. The feed tray being a cover for the entrance way, when the toaster is not in use, automatically opens to become a feed mechanism which closes after the item to be cooked has entered the toaster. The apparatus further has another door which functions as a cover for the exit hole of the toaster which automatically opens to dispense the cooked food item upon the end of a cooking cycle.
    Type: Grant
    Filed: August 12, 1999
    Date of Patent: June 27, 2000
    Assignee: Prodesign Technology, Inc.
    Inventors: Alfredo Cardillo, Donald M. Lawrence
  • Patent number: 6058829
    Abstract: A food preparation device is provided with a toaster portion and an attached slicing mechanism. The device may be used to prepare toasted bagels and other food products. The toaster portion and the slicing mechanism are arranged to provide a compact construction. The slicing mechanism may be provided with slot-shaped guides for guiding a knife. A press plate may be used to hold the food product in a desired position for cutting. In addition, a device may be provided for removing the food product after it has been sliced.
    Type: Grant
    Filed: December 17, 1998
    Date of Patent: May 9, 2000
    Assignee: Windmere Corporation
    Inventor: W. Eric Endres
  • Patent number: 6014925
    Abstract: A toaster comprises a housing (1) enclosing a toasting chamber (2) in which is movably mounted a bread carrier (4) between an ejection position and a toasting position in which it is retained by an electromagnetic actuating device (5) comprising a control winding (6) with a hollow support (7) which is secured to a plate (20) carrying electrical connection members (22), and which surrounds a magnetic core (8), as well as a movable armature (9) adapted to retain the bread carrier (4) in its toasting position. The magnetic core (8) is mechanically mounted independently of the support (7) of the winding (6) and of the plate (20), and is secured to a member (24) on the housing (1).
    Type: Grant
    Filed: April 27, 1998
    Date of Patent: January 18, 2000
    Assignee: Moulinex S.A.
    Inventors: Sanjuan Antonio Basora, Julian Arnedo
  • Patent number: 5947006
    Abstract: In a toaster having a housing, a bread-supporting carriage movably mounted in the housing for movement between a toasting position, a temperature-maintaining position, a rest position and a supplementary raised position, and a spring coupled with the carriage to apply a force which urges the carriage in a direction from the toasting position toward the supplementary raised position, a manually operable control element is operatively associated with the carriage and is movable to a selected one of a plurality of control positions for retaining the carriage at a selected one of the temperature-maintaining position and the rest position.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: September 7, 1999
    Assignee: SEB S.A.
    Inventor: Guy J Mauffrey
  • Patent number: 5924355
    Abstract: A low cost toaster having a metal body and plastic end panels. The end panels have cooling inlet vents near their lower ends and the top wall of the metal body has air outlet vents. Ambient air admitted through the inlet vents flows upwardly through the toaster and outwardly through the outlet vents to provide a cooling effect sufficient to allow the use of inexpensive plastic material for molding the end panels. The toaster has a bread lifter made entirely from a wire rod, a bread lifter extension made entirely from a wire rod, and a toast color cam made entirely from a single piece of sheet metal.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: July 20, 1999
    Assignee: Hamilton Beach/Proctor-Silex, Inc.
    Inventors: Lee J. Belknap, John W. Foster
  • Patent number: 5918532
    Abstract: A toaster comprises a housing (1) enclosing a carriage (4) movable between an ejection position and a toasting position to which it can be brought by a handle (6) connected to one end (7) of the carriage (4) by a driver (8) secured to a finger (11) adapted to actuate a control switch (12) for the electrical supply of a heater (3). The driver (8) is movably mounted on the end (7) of the carriage (4) for movement along a vertical path (l) so as to permit the finger (11) to free the switch (12) when the carriage remains blocked in its toasting position after unlocking a retaining device (10).
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: July 6, 1999
    Assignee: Moulinex S.A.
    Inventors: Julian Arnedo, Antonio San Juan Basora
  • Patent number: 5901639
    Abstract: A temperature sensitive timing assembly for a toaster appliance includes a single bimetallic element having a first portion connected to a support bracket, which in turn is mounted on a mounting bracket for pivotal movement relative to the mounting bracket. A spring is positioned between the mounting bracket and the support bracket to bias the support bracket toward the mounting bracket. A stop is mounted to the mounting bracket which locks the support bracket in a fixed position when actuated by the toaster carriage assembly at the beginning of a toasting cycle. The bimetallic element has a second portion which operatively activates the toaster lock release assembly at the end of a toasting cycle. The bimetallic element also has a third portion which operatively allows the support bracket to reposition at the end of a toasting cycle so as to provide virtually immediate initiation of the next toasting cycle providing substantially the same toast color as the previous toasting cycle.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: May 11, 1999
    Assignee: Toastmaster Inc.
    Inventor: Peter E. Huggler
  • Patent number: 5901638
    Abstract: A bread toaster comprising: a frame; a bread-supporting carriage mounted in the frame for vertical movement between a toasting portion and a first bread discharge position, the carriage having an extension; first cushioning means for cushioning arrival of the carriage at the first bread discharge position; return means mounted between the frame and the extension of the carriage; and a control means having an abutment and being movable in the frame for limiting ascent of the carriage to a second position by interaction of the abutment with a part of the carriage, wherein: the second position is a second bread discharge position for discharging bread having a first size and the first bread discharge position is a position for discharging bread having a size smaller than the first size; and one of the abutment and the part of the carriage which interacts with the abutment is provided with second cushioning means for cushioning arrival of the carriage at the second position.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: May 11, 1999
    Assignee: SEB S.A.
    Inventor: Jean-Pierre Houel
  • Patent number: 5839354
    Abstract: A novel toaster for everyday household use comprises a conveyor which carries items to be toasted past electrical heating panels. The toaster has an entrance wherein the item is inserted vertically from a fed tray onto the conveyor. The heating panels, placed above and below the toasting cavity, heat to a constant temperature wherein the level of toasting is controlled by setting the travel speed of the conveyor. The apparatus is encompassed by a rectangular body shell and has a translucent door for side access. Additionally, the body has a butter well located in the top surface. Butter is placed in the well which has a plurality of apertures for allowing the butter to drip onto the passing food item below. The well absorbs the ambient heat from the appliance to facilitate the butter meltdown.
    Type: Grant
    Filed: May 15, 1996
    Date of Patent: November 24, 1998
    Inventor: Alfredo Cardillo
  • Patent number: 5821503
    Abstract: A method and apparatus for controlling the speed at which an AC electric motor drives a conveyor to move food products through a conveyor oven are disclosed herein. The oven includes a housing, electric heating elements mounted within the housing, and a conveyor to move food-carrying baskets adjacent the heating elements. A motor controlled by a speed control circuit moves the conveyor. The speed control circuit includes a rectifier to provide rectified current to the motor, a shunt circuit to bypass the rectifier with a rheostat to set the conveyor speed, a thermostat to monitor oven temperature, and a speed-reducing circuit to introduce additional resistance into the shunt circuit when the oven temperature drops. The thermostat also controls additional heating elements to provide additional heat during high load conditions.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: October 13, 1998
    Assignee: Hatco Corporation
    Inventor: Allan E. Witt
  • Patent number: 5802957
    Abstract: An improved toaster includes a user control panel for receiving and displaying user selections corresponding to a desired toast darkness setting. A toaster shade display displays a user selected toast darkness setting and includes a linear array of LEDs (LED bar), horizontally arranged on an exterior portion of the toaster body. The LEDs are sequentially turned on and off to indicate the user selected toast darkness setting, lighter or darker toast. The user control panel also contains preprogrammed custom settings for one-slice, two-slice, bagel, defrost and reheat mode of operation. A user can select a custom setting or any combination of custom settings thereof.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: September 8, 1998
    Assignee: Conair Corporation
    Inventors: David Wanat, Roger Letso
  • Patent number: 5771780
    Abstract: An electric toaster with a housing (1) includes a toasting chamber and a slot (2) provided in the top surface thereof for inserting slices of bread, at least one heating element (3), and at least one bread holder (4) movable up and down on a guide device (6) by a lowering and raising mechanism (8) between the housing (1) and the toasting chamber. The guide device (6) comprises a single vertical slide rail (9) with a slide (10) movably mounted thereon, and the holder (4) is attached only to the slide (10) so that it is cantilevered to the post (9).
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: June 30, 1998
    Assignee: Moulinex S.A.
    Inventors: Antonio Basora, Julian Arnedo
  • Patent number: 5692432
    Abstract: An appliance (5) for toasting a product (10) comprises detection means (12) for detecting variations of a toasting condition of the product during toasting and for allowing a user to adjust the toasting result as desired. The appliance comprises a temperature sensor (13) which measures the temperature of the product. Timing means (14) are started when a predetermined temperature (Td) is reached. The timing means (14) are stopped when either another predetermined temperature (Tf) is reached or when a predetermined period has elapsed. The appliance is also capable of controlling a process of defrosting of the product prior to toasting of said product.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: December 2, 1997
    Assignee: U.S. Philips Corporation
    Inventors: Jean-Pierre Hazan, Jean-Louis Nagel, Serge Gourrier
  • Patent number: 5673608
    Abstract: A food cutting holder mounted in conjunction with a toaster for toasting bagels, muffins, bread slices and other similar types of foodstuff. The food cutting holder is to be confinable within the housing of the toaster when in the storage position and removable from the housing when it is intended to be used. The food cutting holder confiningly locates the food item in a precise position facilitating division of the food item into a plurality of separate pieces. It is intended that these separate pieces are then to be toasted within the toaster.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: October 7, 1997
    Inventor: Robert A. DeMars
  • Patent number: 5664481
    Abstract: A toaster having a movable bakery product shield for enhanced toasting quality. A wide slot cavity to receive bakery goods for toasting is defined on one side thereof by an upstanding, stationary product retainer spaced apart from a heating element and, on the other side thereof, by a movable product retainer having a deflector shield connected along its upper edge. Interiorally of the toaster, a carriage mechanism is mounted on an end wall for vertical reciprocal movement between an up position and a down position. Connected to the carriage mechanism and extending longitudinally through the slot cavity is a bread support shelf which is inclined toward the stationary product retainer to cause the lower edge of a bread slice placed in the toaster slot to engage the stationary product retainer.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: September 9, 1997
    Assignee: Toastmaster Inc.
    Inventor: Peter Huggler
  • Patent number: 5653158
    Abstract: A toasting or heating appliance, particularly an electrical food toasting or heating appliance such as a toaster, including a housing (1) with a fixed toasting subassembly (5) and a movable toasting subassembly (6) moved by a holder (20) to form a variable-width toasting slot (7), the holder (20) including two side arms (21, 22) rotatably mounted at their ends on the housing (1), a bread rack (15) axially movable in the slot, and a control handle (16) which controls the movement of the movable bread rack (15) and is combined with an actuating member (19) for causing relative movement of the two subassemblies (5, 6), wherein the appliance further includes at least one stabilizing arm (30) arranged behind the movable subassembly (6) and connected to the back thereof via a first hinge (31), as well as to the housing (1) via a second hinge (32).
    Type: Grant
    Filed: August 28, 1996
    Date of Patent: August 5, 1997
    Assignee: SEB S.A.
    Inventors: Jean-Marie Balandier, Alain Rousseau
  • Patent number: 5647270
    Abstract: A toasting or heating appliance, particularly an electric toaster comprising a housing with a toasting slot (7) defined by two movable squeezing grills (13), a bread rack (15) axially movable within the toasting slot (7), a carriage (40) which controls the movement of the movable bread rack (15) and is combined with a control handle (16), and a resilient return member (46) for returning the bread rack (15) to its raised receiving position, wherein the control carriage (40) is axially and resiliently movable relative to the movable bread rack (15) and provided with a member (19) that actuates a drive element (45) for moving at least one squeezing grill (13). The appliance is suitable for use as a toaster.
    Type: Grant
    Filed: August 15, 1996
    Date of Patent: July 15, 1997
    Assignee: SEB S.A.
    Inventors: Alain Rousseau, Dominique Marx
  • Patent number: 5644974
    Abstract: An electric toaster having an automatic resetting heat reduction assembly. The toaster includes one or more cavities to receive bagels, bread, or other food products, and a plurality of heating elements located within the cavities to toast the food products. A carriage assembly movable between a raised nontoasting position and a lowered toasting position lowers and raises the food products into and out of the toasting cavities. When lowered to the toasting position, the carriage assembly activates a heat activation assembly which completes an electrical circuit between a power source and the heating elements, thereby energizing the heating elements to toast the food products. The toaster also includes a heat reduction assembly settable between an original full heat position and a depressed reduced heat position.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: July 8, 1997
    Assignee: Toastmaster, Inc.
    Inventor: Timothy J. Slavin
  • Patent number: 5598765
    Abstract: A toaster has a casing, a carrier for supporting a slice of bread, the carrier being movable between an upper position to expose the slice of bread outside the casing and a lower position to render the slice of bread inside the casing, a heating element provided inside the casing for heating the slice of bread when the carrier is in the lower position, an internal operating mechanism for moving the carrier, the operating mechanism including a spring assembly for resiliently biasing the carrier upwards and holding means including a stationary solenoid for holding the carrier in the lower position, and a time for controlling the time period during which the slice of bread is to be heated by the heating element wherein the holding means is releasable by a user at point other than the solenoid or with a force relatively smaller than the holding force of the solenoid in order to release the carrier from the lower position at any time during the time period.
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: February 4, 1997
    Assignee: G.E.W. Corporation Limited
    Inventor: Kit C. Yip
  • Patent number: 5522306
    Abstract: A toaster (10) for toasting bagels, muffins, bread slices and other similar foodstuff (18 and 126), where the foodstuff (18 and 126) is inserted within an access opening (14) in the top of the toaster (10) onto a holding rack (186, 188), and the toasted foodstuff (18, 126) is then automatically exited through an exit opening (26) located in the bottom area of the toaster (10). Associated with the exit opening (26) is a planar member (30) which has a work surface (28) upon which the toasted foodstuff (18, 126) is to be deposited. The planar member (30) is to be pivotally mounted on the toaster housing (12) to move between a stowage position and a usage position. A safety protected foodstuff cutter (36) is mounted on the toaster housing (12) with this foodstuff cutter (36) to be operable to divide certain foodstuff (18, 126) into two pieces to facilitate its toasting operation. A novel mechanism is included within the toaster (10) to achieve the toasting operation.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: June 4, 1996
    Inventor: Robert A. DeMars
  • Patent number: 5385082
    Abstract: A toaster having an automatic shut-off. The toaster includes a cavity to receive bread and which includes a heating element which may be selectively energized by a switch to cause toasting of the bread. The toaster also includes a carriage mechanism to move the bread between up and down positions. The carriage mechanism includes a bread support extending into the cavity. The bread support is connected to a support frame which rides upon a vertical slide rod. Also mounted upon the slide rod is a lock frame mounted to allow limited movement with respect to the support frame. A spring is connected to the lock frame to bias it into an up position, and the lock frame includes a lock mechanism to releasable maintain it in a down position. The switch for activating the heating elements is activated when the lock frame is in this down position. A release mechanism is provided to release the lock mechanism.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: January 31, 1995
    Assignee: Toastmaster Inc.
    Inventors: Peter Huggler, Charles Martin
  • Patent number: 5283421
    Abstract: When a carriage of the toaster is in a lower position, a switch (21) is closed and power passes through a bridge rectifier circuit (22) to an integrated circuit (19), which, for the normal cooking operation, switches SCR (20) off so that a relay (7) is energised, switching switches (8) and (9) on to energise heating elements (2) and (3). Power is also supplied to a latch (27) to hold the carriage in the lower position. If, however, a fault detection is input from a residual core balance (12) to the integrated circuit (19), SCR (20) is switched on so that power from bridge rectifier (22) is shorted. This causes relay (7) and latch (27) to be de-energised so that the heating elements (2) and (3) are turned off and the carriage is returned to the upper position, causing switch (21) to open.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: February 1, 1994
    Assignee: PNE Appliance Controls Pte. Ltd.
    Inventor: David A. Richards
  • Patent number: 5170039
    Abstract: The toaster comprises a housing for receiving the pieces of bread to be toasted or to be reheated and on both sides of this housing an electric heating element having an electric resistor (R.sub.1, R.sub.2) wound on an elongated support made of insulating material (10, 11).On both sides of the housing there is provided at least one second electric resistor (R.sub.3, R.sub.4), commutation being provided to connect to the mains, as desired, one or both of the abovementioned resistors.Use: to permit a plurality of heating modes in toasters.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: December 8, 1992
    Assignee: SeB S.A.
    Inventor: Roger Eisenberg
  • Patent number: 5126534
    Abstract: A toaster having double-wall construction controls the flow of air within its interior so that its exterior is kept cool. Air intake occurs near the edge of the top toaster slot where bread or the like is inserted for toasting. Intake air then travels down the immediate interior of the toaster and is introduced to the toasting chamber and an associated warm air flow channel near the bottom of the toaster. Air warmed by the toasting chamber and associated channel rises and pulls cooler air from below. The warm exhaust air is channelled away from the cool intake air by means of a top cover.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: June 30, 1992
    Assignee: Goldus Industrial Limited
    Inventor: Wing C. Kwong
  • Patent number: 5097751
    Abstract: The device is intended to support the mechanical and electrical members of a toaster (1).The device consists of a plate (2) in plastic material comprising protuberances or tongues (3, 4, 5, 6) molded in the plastic material and projecting on one of the faces of the plate (2), these protuberances or tongues being shaped in order to receive and to ensure the fixing of conducting (7, 8) or mechanical elements by translation of the latter perpendicularly to the plate (2), these elements being intended to form the mechanical and electrical control members of the toaster.Application particularly in vertical toasters.
    Type: Grant
    Filed: November 26, 1990
    Date of Patent: March 24, 1992
    Assignee: SEB S.A.
    Inventors: Roger Eisenberg, Jean-Marie Balandier, Alain Didierlaurent, Alain Rousseau
  • Patent number: 5094154
    Abstract: An electric toaster includes a housing having at least one heating element mounted therein. A source of electric power is selectively connected to the heating element for energization thereof. A carriage is mounted in the housing for supporting a food product to be toasted and is movable between upper non-toasting and lower toasting positions. An electrically operated latch mechanism holds the carriage in its toasting position. A temperature sensing switch is electrically connected to the latch mechanism for releasing the mechanism and returning the carriage to its non-toasting position when the temperature of the food has reached a predetermined level. A time delay mechanism is electrically connected to the temperature sensing switch for disabling the switch during an initial period of time at the start of each toasting cycle when the carriage is moved to its toasting position.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: March 10, 1992
    Assignee: Black & Decker Inc.
    Inventor: Esko J. Nopanen
  • Patent number: 5072662
    Abstract: In an electric toaster (1), a carriage (18) which supports the bread slices (8) and (10) to be toasted is movable automatically from a toasting position to a first position (FIG. 1a) where larger slices (10) can be removed and then manually to a second position (FIG. 1b) where smaller slices (8) can be removed.
    Type: Grant
    Filed: October 18, 1990
    Date of Patent: December 17, 1991
    Assignee: G. E. W. Corporation Limited
    Inventor: Kit C. Yip
  • Patent number: 5054382
    Abstract: A toaster with one control system for toasting one slice of bread and another control system for toasting two different slices of bread in which the one slice control system and the two slice control system can be operated independently and together so that between one to three slices of bread can be toasted.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: October 8, 1991
    Inventors: Edward D. Ward, George Spector
  • Patent number: 5044263
    Abstract: An electrically heatable toaster includes at least one bread holder which is held in toasting position by an electromagnet. The electromagnet has a tripping device which is actuated manually as well as electrically by a timing control. The timing control includes a clock pulse actuated counting circuit connected to a frequency-determining charging capacitor and a voltage divider. The voltage divider includes a temperature-dependent resistor for compensating the influence of the toasting degree temperature and for triggering the electromagnet tripping device after a preset degree of toasting is reached. An oscillator with two complementary transistors combined in a programmable unijunction transistor circuit operates the counting circuit. The transistors are connected on the input side to a charging current circuit of the frequency determining capacitor and on the output side through a dividing point of the voltage divider with the temperature-dependent resistance to a clock input of the counting circuit.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: September 3, 1991
    Assignee: Rowenta-Werke GmbH
    Inventors: Karl Birkert, Heinz Marburger, Gunter R. Kullik
  • Patent number: 5018437
    Abstract: Toaster comprising a housing (1), a heating resistance controlled by a switch (2) associated with a timer, a breed carriage (3) guided within the housing and adapted to occupy at least two positions, namely a toasting position in which the carriage (3) closes the switch (2) actuating the timer, and in which the carriage (3) is moved by the user and maintained during the toasting cycle by a catch (5) operated by an electromagnet (6) which comes into engagement with an abutment (7) of the carriage (3), or a rest position into which the carriage (3) is moved by a return spring (8), at the end of the toasting cycle, when the catch (5) frees the abutment (7).
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: May 28, 1991
    Inventor: Antonio B. San Juan
  • Patent number: 4976194
    Abstract: A bread toaster comprising a comparator circuit with a sensor responsive to infrared radiation to determine the toasting time of an object to be toasted is extended by a control circuit. The latter detects automatically, whether the bread toaster is used for toasting an object to be toasted that is introduced through a loading and unloading opening into its toasting chamber (toasting operation) or for warming up a respective item which is placed on top of the loading and unloading opening (warming-up operation). The control circuit controls during the toasting operation the operating time of the bread toaster in dependence upon the toasting degree adjusted by the user, while it puts the bread toaster into operation for a fixed period of time during the warming-up operation.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: December 11, 1990
    Assignee: Braun Aktiengesellschaft
    Inventors: Heinz Kelterborn, Heinz Schiebelhuth
  • Patent number: 4577550
    Abstract: A gravity fed toaster, particularly for restaurant or other commercial use, is described where bread slices to be toasted are fed by gravity and means are provided to simultaneously release a toasted slice of bread, while preventing feed of a subsequent slice from a gravity magazine.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: March 25, 1986
    Assignee: Hickory Industries, Inc.
    Inventors: Steven Maroti, Daniel Formosa
  • Patent number: 4503758
    Abstract: This drop-down toaster has a bread support and a door at the bottom of each toasting compartment. The door has a series of vent holes for air convection which produces improved uniformity in the toast. The door and bread support are held closed by rollers on solenoid-controlled sliding bars. The rollers allow the door to swing open before the bread support is released, and they return the door and bread support to their normal condition automatically by a cam action. The bread support is cammed upwardly before release to dislodge bread from the toasting compartment guide wires. An electronic timing circuit is located in a base underneath and spaced vertically from the toasting section so that it is not affected by heat from the toasting section. The timing circuit is compensated in accordance with previous use rather than by sensing the temperature of the toasting compartment.
    Type: Grant
    Filed: July 22, 1982
    Date of Patent: March 12, 1985
    Assignee: Alco Foodservice Equipment Company
    Inventor: James G. Carville
  • Patent number: 4454803
    Abstract: This drop-down toaster has a bread support and a door at the bottom of each toasting compartment. The door has a series of vent holes for air convection which produces improved uniformity in the toast. The door and bread support are held closed by rollers on solenoid-controlled sliding bars. The rollers allow the door to swing open before the bread support is released, and they return the door and bread support to their normal condition automatically by a cam action. The bread support is cammed upwardly before release to dislodge bread from the toasting compartment guide wires. An electronic timing circuit is located in a base underneath and spaced vertically from the toasting section so that it is not affected by heat from the toasting section. The timing circuit is compensated in accordance with previous use rather than by sensing the temperature of the toasting compartment.
    Type: Grant
    Filed: July 22, 1982
    Date of Patent: June 19, 1984
    Assignee: Alco Foodservice Equipment Company
    Inventors: Fred G. Wolf, William C. Schneider
  • Patent number: 4170932
    Abstract: An electronic control for controlling the degree of toasting of a bread slice in a toaster. The control includes a thermocouple located within the passage of the toaster for the bread slice and responsive to the temperature of the toaster casing, the slice of bread and the air temperature within the passage to produce a voltage proportional to the resultant temperature. This voltage is integrated and actuates an electronic pulse generator with an adjustable pulse width which produces a triggering pulse. This pulse is used to actuate a solenoid which unlatches the support for the bread slice. The operational amplifier has a predetermined output voltage of reference defining the threshold of operation of the pulse generator. The electronic control is very stable and, therefore, produces uniform toasting, since it integrates the time required to obtain the desired degree of toasting as a function of the temperature variation to which the bread slice is subjected.
    Type: Grant
    Filed: June 21, 1977
    Date of Patent: October 16, 1979
    Inventor: Lionel Lalancette
  • Patent number: 4098178
    Abstract: A toaster adapted for compact mounting and fixing flat against a wall in inoperative position, which has a toasting portion pivotable to an operative position, and wherein the toast is ejected merely by dropping it through an outlet slot in the bottom of the toaster. This wall toaster includes a wall mounting flat portion, a flat toasting portion, a hinge pivotally connecting the toasting portion to the wall mounting portion and producing electric plugging of the toasting portion by operative abutment against the wall mounting portion and a gate is pivotally mounted over the toast outlet slot and operatively opened by an electric operator in response to predetermined toasting of the slice of bread in the toaster.
    Type: Grant
    Filed: March 16, 1977
    Date of Patent: July 4, 1978
    Inventor: Lionel Lalancette
  • Patent number: 4025299
    Abstract: The oven includes a baking compartment and a lower compartment located beneath the baking compartment for receiving baked articles therefrom; a horizontal shelf separates the baking compartment from the lower compartment and is formed of a series of pivotable plates; means are provided for pivoting the plates at predetermined time to cause the baked articles in the baking compartment to fall under the action of gravity in the lower compartment.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: May 24, 1977
    Inventor: Jocelyn Dubois