BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of the cooker in a contact grill position;
FIG. 2 is a perspective view of the cooker in the tilted drip position;
FIG. 3 is a perspective view of the cooker in the half open position;
FIG. 4 is a perspective view of the cooker in the full open position;
FIG. 5 is a perspective view of the cooker with the upper and lower burners in the manually selected spaced apart position;
FIG. 6 is a perspective view of an interchangeable griddle plate;
FIG. 7 is a perspective view of an interchangeable grill plate:
FIG. 8 is a perspective view of an interchangeable waffle plate;
FIG. 9 is a perspective view of a saute pan;
FIG. 10 is a broken side elevation view of the time and temperature indicators;
FIG. 11 is a broken side elevation view of the time and temperature setting buttons;
FIG. 12 is a perspective view of the underside of a cooking plate illustrating male and female couplings for removable mating with a burner;
FIG. 13 is a perspective view of an exposed burner illustrating male and female couplings for mating with a cooking plate;
FIG. 14 is a broken perspective view showing in a cut away schematic illustration a ratchet mechanism on one of the wheels;
FIGS. 15 and 16 are broken perspective views showing operation of one of the floating hinges;
FIGS. 17 and 18 are broken side elevation views showing operation of one of the movable bosses;
FIG. 19 is a broken perspective view showing the boss engaging notch in one of the floating hinges; and
FIG. 20 is a simplified schematic diagram of the cooker control circuit.
DETAILED DESCRIPTION
Turning now to FIG. 1, the electric cooker 10 according to the invention includes an upper burner 12 and a lower burner 14 which are adjustably coupled to a control platform 16. The lower burner 14 is coupled to a pair of wheels 18, 20 (seen best in FIGS. 14-16) which are rotatable about a horizontal axis such that the lower burner 14 can be angled up from horizontal (FIG. 1) to 45° or more (FIG. 2). The wheel 20 is provided with ratchet teeth 21 and a movable pawl 23 is coupled to a push button 25 (FIG. 14). The pawl 23 engages the teeth 21 to maintain the wheel 20 at a selected angle. When the button 25 is pressed, the pawl 23 is released from the teeth 21 to allow the wheel 20 to be rotated. As illustrated, each burner is provided with a handle 15, 17 which aids in moving the burners to the different positions shown in FIGS. 1-5. The handles can also be used to transport the cooker from storage to counter top and back.
As seen best in FIGS. 14-16, the upper burner 12 is coupled to the wheels 18, 20 by a pair of floating hinges 22, 24. The hinges include pins 26, 28 which engage slots 30, 32 in respective wheels 18, 20. The floating hinges allow the distance between the burners to automatically spread apart and come together depending on the thickness of the food being cooked.
The hinges 22, 24 are also each supplied with a notch, e.g. 34 In FIG. 19, and the control platform 16 has a pair of movable bosses 36, 38 (see FIGS. 3, 14 and 18 for example) which are movable by respective spring biased click buttons 40, 42. When the bosses are extended as shown for example in FIG. 18, they are in a position to engage the notches of the hinges 22, 24 to keep the upper burner 12 spaced a fixed distance above the lower burner 14 as shown In FIG. 5. The floating hinges 22, 24 also allow for a full 180° rotation so that the upper and lower burners can be arranged as side by side burners as shown in FIG. 4.
Referring now to FIGS. 1, 10, and 11, the control platform 16 has a control button panel 44 and a digital display 46. The control button panel includes a mode selector 44a, a start button 44b, up and down selectors 44c, 44d and a ready light 44e. The digital display 46 includes an upper burner temperature indicator 46a, a lower burner temperature indicator 46b, and a timer display 46c. The temperature Indicators 46a, 46b consist of five bars each. The bars indicate temperature as shown in Table 1, for example.
TABLE 1
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|
Bars
Setting
Temperature
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No bar
Off
0
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1 bar
Low-lowest setting
250 F.
|
2 bars
Low-Med setting
300 F.
|
3 bars
Medium setting
350 F.
|
4 bars
Med-High setting
400 F.
|
5 bars
High-Highest setting
450 F.
|
|
The mode button 44a on the control panel is used to scroll through and select the temperature and timer functions. The mode button is pressed once to select the top plate. The up/down buttons 44c, 44d are then used to select the number of bars. The mode button is pressed twice to set the bottom plate. The up/down buttons 44c, 44d are then used to select the number of bars. The mode button is pressed a third time to set the timer setting (cook time) using the up/down buttons. When the time and temperatures are set, the start button 44b is pressed to start cooking. The ready light 44e is preferably a multicolor LED which glows one color, e.g. red, when heating up and another color, e.g. green, when temperature has been reached.
FIG. 20 shows an exemplary control circuit 60 coupled to the push buttons 44a-44d, the LED 44e, the display 46 as well as burner heating elements 12a, 14a and a power supply, 1. The power is preferably provided by a household electrical outlet supplying approximately 110 v and 20 amps.
FIGS. 6-8 Illustrate a plurality of different cooking plates, for example a smooth griddle plate 50, a ribbed grill plate 52, and a waffle plate 54. Each plate has a different cooking surface. Typically, a pair of plates having the same cooking surface are coupled to respective upper and lower burners as shown for example in FIGS. 3, 4. However, it is possible to couple different cooking plates to respective burners. For example, in the side by side arrangement shown in FIG. 4, it might be desirable to replace one of the grill plates 52 with a griddle plate 50 when cooking, for example, sausage and eggs. Moreover, an optional sauteing pan 56 with a removable lid 57, shown in FIG. 9, can be positioned on one of the cooking plates when the burners are side by side as shown In FIG. 4. Each of the cooking plates is provided with two drain gutters 50a, 50b, 52a, 52b, 54a, 54b. When the cooker is put In the tilted position shown in FIG. 2, the gutters on the grill plates allow grease to drip out onto a removable drip tray 58.
The different cooking plates are removably coupled to the burners via male and female connectors. In particular, as shown in FIGS. 12 and 13, the cooking plates, e.g. plate 52, have two male connectors 52c, 52d and two female connectors 52e, 52f. The burners, e.g. burner 14, have two female connectors 14b, 14c and two male connectors 14d, 14e. The male connectors 52c, 52d on the plate 52 are snap in connectors which mate with spring clips 14b, 14c on the burner 14. The female connectors 52e, 52f on the plate 52 are side wall slots which mate with horizontal tabs 14d, 14e on the burner 14.
There have been described and illustrated herein a multifunction electric cooker. While particular embodiments of the invention have been described, it is not intended that the invention be limited thereto, as it is intended that the invention be as broad in scope as the art will allow and that the specification be read likewise. It will therefore be appreciated by those skilled in the art that yet other modifications could be made to the provided invention without deviating from its spirit and scope as claimed.
Patent Application
20070277678
