Concave induction cooking surface for wok cooking

• US 5,687,642 A
• Filed: 10/10/1995
• Issued: 11/18/1997
• Est. Priority Date: 10/10/1995
• Status: Expired due to Fees

• Current Assignee: Nathan Chao
• Original Assignee: Nathan Chao
• Inventors: Chao, Nathan
• Primary Examiner(s): ALEXANDER, REGINALD
• Application Number:
  US08/541,606
• Time in Patent Office: 770 Days
• Field of Search: 99/451, 99/DIG. 14, 99/DIG. 13, 99/422, 219/620, 219/621, 219/624, 219/625, 219/634
• US Class Current: 99/451
• CPC Class Codes: H05B 6/1227 for wok pans and wok pans supports for induction cooking plates
• CPC Class Codes: Y10S 99/14 Induction heating

Abstract

A concave induction cooking surface (12) for wok cooking that consists of a concave glass surface (16) with a concave induction coil (14) located underneath, which are all mounted onto a cooking unit (10) that contains a control knob (18) and a visual display (20).

Claims

1. An induction heating device for bowl-shaped cooking pans, comprising:

a bowl-shaped induction heating coil having a peripheral edge which defines a circle.

2. The induction heating device of claim 1, further including a bowl-shaped surface of non-metallic, heat-resistant material, having a peripheral edge which defines a circle, placed atop said induction heating coil.

3. The induction heating device of claim 1, further including a main unit supporting said surface and said induction heating coil, and with said main unit also containing a control device to control the supply of electric current to said induction heating coil.

4. The induction heating device of claim 1, further including a visual display showing the amount of electric current supplied to said induction heating coil.