US 6,414,274 B1Granted

Electrical heater lid

OwnerAfsaneh Mahyariinventor

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Abstract

The Electrical Heater Lid is a cover-type food cooking and warming apparatus that provides surface cooking by evenly passing intense heat over the food being cooked in a pot, pan, or skillet. Many foods require surface heat to eliminate flipping the food over in the utensil. Such foods are cooked better and more quickly if both sides of the food can be cooked simultaneously, and the invention is directed toward such foodstuff. The apparatus fits on and covers the top of various sizes of pots, pans, or skillets for broiling, cooking, heating, sealing the surface of food products, and helping steaming process of steamed rice. The apparatus includes a metal curved cover lid, a heat resistant barrier, the electrical resistance heating elements, and a highly heat conductive bottom covering panel, a steam vent via a knob that incorporates a rotatable member to permit the vapor to escape, a removable long hollow handle which incorporates the electrical devices and transmits power from the electrical power source to the heating elements within the lid and a cross handle attached the lid for easy lifting. Moreover, for safety purposes a heat resistant four-legged tray is provided for placing the electrical heater lid on it whenever it is not being used.

An electrical heater lid comprising:

a bottom covering panel made of a highly heat conductive metal with a center hole, an eccentric hole and a power insertion housing welded on its flat side and concaved edges on the other side to fit on different sizes of cooking utensils;
an electrically insulated heating element of a generally semi circular cross-section including a flat bottom surface portion for contacting the top of said bottom covering panels, said element adapted to be connected to the an electrical source;
a heat barrier insulation placed on top of said electrically insulated heating element to prevent heat to penetrate to the top, comprising two holes which are axially in-lined with said holes specified in said bottom covering panel;
a top curved metallic lid which is placed on top of said heat barrier insulation comprising two holes axially in-line with said holes of said bottom covering panel;
a machine bolt inserted from said center hole of said bottom covering panel, through said center hole of said heat barrier insulation and said center hole of said top curved lid;
a steam vent knob with a lock nut which incorporates a rotatable member to permit the vapor to escape, placed on top of said top curved lid, bolted to said machine bolt's threaded end, keeping intact all parts including said bottom covering panel, electrically insulated heating element, heat barrier insulation and top curved lid;
a vent pipe welded axially in-line to said eccentric hole on the flat side of said bottom covering panel which is also welded to said eccentric hole of said top curved lid, to permit moisture generated during use of this electrical heater lid, to escape;
a removable long hollow handle mechanically attached to said top curved lid via a combination of a variable resistor and a thermostat switch, comprising a fire-proof power cord suitable to be hooked up to the power source via a receptacle from one end and connected to said combination of said variable resistor and thermostat switch from the other end which in turn, provides a preset controlled power to said electrically insulated heating element;
a lifting handle attached to the side of said top curved metallic lid across the said removable hollow handle.

6 more elements

Abstract

Claims5