Oven device for preparing a dough product, method for displaying an ideal temperature range of an oven device and use of an oven device

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Solution Overview

Problem

Existing pizza ovens lack precise measurement of the oven stone temperature, which is crucial for successful pasta preparation, as current temperature sensors are affected by heat radiation and can only measure interior temperatures.

Innovation Solution

A sensor device is positioned between the housing wall and the underside of the oven stone, resiliently attached via a spring mechanism, allowing for accurate measurement of the oven stone's temperature without interference from heat radiation, and a second sensor measures interior temperature, with a display device showing ideal temperature ranges.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If temperature sensors are placed inside the oven interior to measure temperature, then the interior temperature can be monitored, but the oven stone temperature cannot be accurately measured due to heat radiation interference

Engineering Contradiction:
Improveoven stone temperature measurementVSAvoidheat radiation interference
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The temperature sensor is extracted from the oven interior environment and repositioned to contact the oven stone directly from the exterior side. This removes the sensor from the harmful heat radiation field while maintaining its ability to measure the stone's temperature through direct thermal contact.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The oven stone itself serves as an intermediary medium. Instead of measuring the interior air temperature directly, the sensor measures the stone's temperature, which has already been heated by conduction from the interior. The stone acts as a thermal mediator that transfers heat information from the cooking environment to the sensor without exposing the sensor to direct radiation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If the sensor device is attached directly to the oven stone surface, then temperature measurement is possible, but the sensor may be damaged during stone removal or installation

Engineering Contradiction:
Improveoven stone temperature measurementVSAvoidsensor device durability
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

A resilient element (spring or elastomer) is introduced between the sensor housing and the oven stone surface. This cushioning element absorbs mechanical shocks and impacts that occur during stone installation and removal, protecting the fragile sensor components from damage while maintaining reliable thermal contact.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The sensor housing incorporates a resilient element that provides flexible, compliant contact with the oven stone surface. This flexible connection allows the sensor to maintain intimate thermal contact with the stone while accommodating stone irregularities and absorbing mechanical stresses without rigid bonding.

Inventive Principle:
Principle #30Flexible shells and thin films

3Area of stationary object

If the oven stone is made large to provide sufficient cooking surface area, then more pasta can be prepared, but the stone becomes heavier and harder to handle

Engineering Contradiction:
Improvecooking surface areaVSAvoidstone handling
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The oven stone is divided into two separate components: a large cooking surface plate and a smaller handle attachment. This segmentation allows the cooking surface to remain large for adequate cooking area while the handle can be optimized for ergonomic gripping and easy maneuvering, separating the functional requirements of cooking surface and handling.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The handle is attached to the oven stone at the periphery rather than requiring the entire stone to be lifted. This dimensional change in handling approach allows users to grip and maneuver the stone by a small portion rather than supporting the full weight and size of the large cooking surface.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables precise temperature control of the oven stone and interior, ensuring uniform heating and easy handling of the stone for cleaning or replacement, while providing user-friendly temperature indication.

Implementation Method 1

a first sensor device (5) mechanically contacting the oven stone (3) for sensing its temperature... the first sensor device (5) is arranged in a space (12) between the housing wall (1) and a recess (320) in the underside (32) of the oven stone (3)

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

the first sensor device (5) is resiliently attached to the oven brick by means of a spring mechanism

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 3

a heat source (2) arranged in the interior space (10) for heating the interior space (10)... the first sensor device (5) is not affected by heat radiation, for example from the heat source inside the interior

Methodology Applied
Scientific EffectThermal radiation: Thermal Radiation

Data Source

PatentEP4646978A1Oven device for preparing a dough product, method for displaying an ideal temperature range of an oven device and use of an oven device
Publication Date: 2025.11.12 BURNHARD GMBH
  • EP4646978A1 patent drawingFigure 1A~1B
  • EP4646978A1 patent drawingFigure 1C~2
  • EP4646978A1 patent drawingFigure 3A~3B

AI summary

Oven device for preparing pasta, comprising a housing wall, an interior space at least partially enclosed by the housing wall, a heat source arranged in the interior space for heating the interior space, an oven stone arranged in the interior space with a top for placing the pasta and an opposite bottom, and a first sensor device mechanically contacting the oven stone for sensing the temperature of the oven stone, wherein the first sensor device is arranged in a space between the housing wall and a recess in the bottom of the oven stone.