Foods and beverages: apparatus – Cooking – Intercontrol or safety control
Patent
1997-05-15
1998-04-21
Simone, Timothy F.
Foods and beverages: apparatus
Cooking
Intercontrol or safety control
99330, 99336, 99403, 126391, 219492, 219494, 219442, A47J 3700, A47J 3712
Patent
active
057407215
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to the general technical field of heating or cooking appliances intended for deep frying in an oil bath in particular.
The present invention concerns a heating appliance for foodstuffs, in particular for deep frying in oil, comprising a cooking receptacle mounted for example in a removable manner in a casing, as well as heating means disposed under the cooking receptacle, which are associated with temperature regulating means and means for detecting the presence and the filling of the cooking receptacle.
The present invention concerns more particularly but not exclusively an electric fryer intended for the cooking of foodstuffs such as french fries, meat or fish, and comprising means for detecting the presence and/or the filling of the cooking receptacle.
PRIOR ART
Means for detection of presence and/or of filling according to a minimum threshold of a cooking receptacle of a cooking container such as a fryer are already known. Most often, such means permit control of the heating means in a fashion such that the latter cannot be activated in certain predetermined cases. For example, it is desired to avoid activating the heating element when the cooking receptacle is withdrawn or when it is insufficiently filled. In these two cases, it is a question of assuring the safety of the user and avoiding all damage which might be caused to the appliance. In order to achieve this control, devices of known types utilize for example activating means associated with a spring, aligned with a switch. The presence of the cooking receptacle and/or its weight lead to a displacement of the activating means. The switch is thus activated.
The document CH 598 794 describes such means, in this case disposed on the support of the cooking receptacle. The device moreover does not comprise a cover and the heating means are provided in the oil bath.
The document DE-A-40 12 075 describes an electric fryer comprising a removable cooking receptacle heated by at least one heating element disposed under this latter. Cooking proceeds in a closed enclosure due to the presence of a cover. The fryer comprises moreover monitoring means cooperating with the cooking receptacle.
However, such devices contain certain limitations which make their utilization on certain types of cooking appliances impossible if one wishes to provide an appliance offering an optimum guarantee of safety to the user.
In addition, in the case where the fryer has a sealing gasket at the interface of the cover and of the casing, as well as means permitting said gasket to be compressed between the cover and the cooking receptacle during closing in order to obtain a sealed cooking enclosure at the level of the peripheral edge of the cooking receptacle, a closing of the cover with compression of the gasket would be succeptable to producing the activation of the activating means. Thus, in the case where such an element will be utilized as the sole activating means of the switch, as is the case with devices of the known type, situations are known in which the electric supply circuit will be closed upon closing of the cover, and this despite the absence of the cooking receptacle or even with a cooking receptacle which is empty or insufficiently filled. Such a dangerous situation can be avoided by the present invention.
SUMMARY OF THE INVENTION
According to the invention, them is thus provided a second activating means which has for its effect that an activation of the first means by accident or due to a compression of the sealing gasket of the cover, which, during its closing bears against the first means, remains without effect upon activation of the switch. In effect, in such a case, closing of the cover leads to a displacement of the second activating element, activated for example by a raised portion or a pin provided on the cover. This second element then inhibits the action of the first activating element and the electrical supply circuit remains open, thus avoiding initiation of heating when the cooking receptacle has b
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Beugnot Bernard
Bizard Jean-Claude
Thevenin Jean-Marie
Seb S.A.
Simone Timothy F.
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