Remotely operated universal programmable oven controller

• US 6,080,972 A
• Filed: 07/27/1998
• Issued: 06/27/2000
• Est. Priority Date: 02/16/1995
• Status: Expired due to Fees

• Current Assignee: Leonhard May
• Original Assignee: Leonhard May
• Inventors: May, Leonhard
• Primary Examiner(s): Paschall, Mark
• Application Number:
  US09/122,985
• Time in Patent Office: 701 Days
• Field of Search: 219/506, 219/497, 219/494, 219/486, 219/714, 340/870.16, 340/870.17, 340/825.37, 340/825.31, 340/825.36, 99/331, 99/325, 99/332, 99/333
• US Class Current: 219/494
• CPC Class Codes: A21B 1/02 characterised by the heating arrangements
• CPC Class Codes: F24C 7/00 Stoves or ranges heated by electric energy stoves or ranges specially adapted for the use of two or more kinds of fuel or energy supply F24C1/02
• CPC Class Codes: F24C 7/087 of electric circuits regulating heat

Abstract

An apparatus is disclosed for automatically programming and controlling an oven, such as a food oven. The oven and its controller can be remotely operated over great distances by using a personal computer having a modem, and transmitting and receiving bidirectionally over a telephone interconnection, to display the cooking progress, modify a cooking sequence or prepare a new program sequence. An ergonomically designed operating panel provides an interactive intuitive method of programming the desired cooking sequences. Switch selections are monitored by a microprocessor which branches to the various preprogrammed functions. In addition, self-analysis and self-diagnostics aid the user in displaying a walk-back of the stored times and temperatures that occurred during an operating cycle before a power outage. A novel integrated oven design conserves the floor space and exhaust fan floor installation and operating costs.

Claims

1. A universal programmable food oven system, comprising:

an oven with a control board that communicates with a controller, including a microprocessor with a memory and a modem, and an oven temperature control including a first temperature sensor within the oven for measuring an internal oven temperature and a second temperature sensor comprising a thermal probe inserted into a food product within the oven for measuring an internal food product temperature; and

, an ADC for digitizing said internal oven and food product temperatures;

first means for programming the oven with a programmed cooking sequence;

second means for self-analyzing for realized compliance with the sequence;

third means for interrogating for intervention with the sequence;

fourth means for modifying the sequence;

fifth means for creating a new cooking sequence;

sixth means for holding, stopping and restarting a cooking cycle;

seventh means for deleting a current cooking sequence;

eighth means for replacing a current cooking sequence and initiating a newly created cooking sequence.

2. A universal programmable oven system according to claim 1, wherein the oven includes a main heater, a quartz heater array and a plurality of solid state drivers to regulate a current flowing to said main heater and quartz heater array;

and,

wherein the oven temperature control is governed by temperatures sensed by said first and second temperature sensors for input through the microprocessor to the drivers forward of the main heater and the quartz heater array.

3. A universal programmable oven system according to claim 2, wherein the oven and a cooking sequence thereof is controlled from a remote location for instantaneous operation, diagnostic review of operation, programming and reprogramming in real time.

4. The universal programmable oven system according to claim 3, further comprising a means for shutting down the oven system by an orderly shut-down sequence in the event of a power failure, or other untoward event that results in a power interruption.

5. The universal programmable oven system according to claim 4, further comprising a means for reinitializing that renders an orderly reinitialization sequence upon recovery from a power failure or power interruption.

6. The universal programmable oven system according to claim 5, further comprising a means for protecting the controller from power line spikes and line transients.

7. The universal programmable oven system according to claim 6, wherein the second means for self-analyzing further comprises a means for retaining the time and duration of a power interruption, as well as recording the temperature at the time of interruption and the temperature at the time that power is resumed.

8. The universal programmable oven system according to claim 7, further comprising a remote computer having an oven controller software for communication with the oven system, the controller, microprocessor and the oven, to monitor progress of the cooking sequence, modify the sequence, create a new cooking sequence program, hold, stop or restart a cooking cycle, delete a current operating sequence, replace a current sequence, or initiate a newly created cooking sequence.

9. A universal programmable oven system according to claim 8, further comprising a remote operator console in communication with the oven controller for executing programs and cooking sequences to the oven via the remote computer.

10. A universal programmable oven system according to claim 9, wherein the remote operator console and the oven controller include a transceiver with a transmitter and a receiver.

11. The universal programmable oven system according to claim 10, wherein the remote computer is in communication with the oven system via conventional telephone land lines.

12. A universal programmable oven system according to claim 10, wherein the remote computer is in communication with the oven system via cellular telephone connection. programmed cooking sequence stored therein, for transmittal of the stored cooking sequence to the oven controller by swiping the card through the reader.

13. A universal programmable oven system according to claim 10, wherein the remote computer is in communication with the oven system using electromagnetic radiation.

14. A universal programmable oven system according to claim 1, wherein the oven and a cooking sequence thereof is controlled by direct interface with the oven control board for instantaneous operation, diagnostic review of operation, programming and reprogramming in real time.

15. The universal programmable oven system according to claim 14, wherein the oven comprises a one-piece cabinet with three modes of operation for cooking, holding and proofing operations therein.

16. The programmable food oven according to claim 15, wherein the oven includes an audible alarm and a visual alarm concomitant with an external power supply failure to warn an operator of power outages of a sustained duration.

17. The universal programmable oven system of claim 10, wherein the computer includes a magnetic card reader having an associated card with a programmed cooking sequence stored therein, for transmittal of the stored cooking sequence to the oven controller by swiping the card through the reader.

18. The universal programmable food oven system according to claim 10, the computer further comprising a bar-code reader with an associated card having a bar-code numerical cooking sequence, for transmittal of the stored cooking sequence to the oven controller by swiping the bar-coded card through the reader.