Drum-Shaped Tortilla Toaster for Simultaneous Dual-Side Heating
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Solution Overview
Problem
Conventional methods for heating tortillas, such as skillets and microwaves, are inefficient and do not provide uniform heating, and existing toaster technologies are not optimized for tortillas, leading to issues like non-uniform toasting and safety concerns with exposed wires.
Innovation Solution
A tabletop tortilla toaster with a drum-shaped heating area using Nichrome wires wrapped around mica boards, enclosed within steel cage guards, allowing for simultaneous heating of six tortillas on both sides, with a controlled heating and timing mechanism to prevent burns and electrocution, and a pivoting design for safe tortilla discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a skillet is used to warm tortillas, then the tortilla surface is toasted and acquires a skin, but the process requires at least one minute per side and only four tortillas can be warmed at a time
Solution Approach 1:
The heating device is segmented into multiple independent heating zones arranged in a circular pattern, allowing six tortillas to be heated simultaneously in separate slots. Each slot has its own heating element, enabling parallel processing of multiple tortillas without interference between them.
Solution Approach 2:
The invention transitions from the conventional two-dimensional skillet surface to a three-dimensional circular drum structure with multiple levels and angles. Tortillas are arranged radially around a central axis, utilizing vertical and radial space to accommodate six tortillas simultaneously, thereby increasing productivity without proportionally increasing device footprint.
2Temperature
If a microwave oven is used to warm tortillas, then the tortilla is warmed from the inside out, but the tortillas become too moist and do not achieve the desired consistency
Solution Approach 1:
Each heating zone in the drum is equipped with independent heating elements that can be controlled individually. This allows different parts of the tortilla to receive different heating intensities - the outer surfaces exposed to heating elements receive higher intensity for toasting, while the interior receives gentler heat for warming, achieving both surface quality and internal temperature uniformity.
Solution Approach 2:
The rotating drum continuously moves tortillas through the heating zones, ensuring that all surfaces of each tortilla are exposed to heat over time. This continuous exposure maintains consistent toasting quality across the entire surface while the gradual heating process prevents moisture loss, avoiding the dryness that would result from intense concentrated heating.
3Power
If conventional bread toaster design is used with exposed electric wires, then heating efficiency is achieved, but there is risk of shock or electrocution when utensils contact the wires
Solution Approach 1:
The invention introduces an intermediary ceramic or heat-resistant material barrier between the exposed electric heating wires and the tortillas. This intermediary layer allows thermal energy to pass through and heat the tortillas efficiently while preventing direct contact between the wires and any utensils or food, thereby eliminating the electrocution hazard while maintaining heating efficiency.
Solution Approach 2:
The heating elements are enclosed within a thin, heat-resistant, electrically insulating shell or coating that allows thermal radiation and conduction to pass through while providing electrical isolation. This thin protective layer maintains the compact design and heating efficiency while completely enclosing the dangerous electric wires to prevent contact.
4Ease of operation
If a drum pivot design is used to deliver tortillas, then safe discharge without burn risk is achieved, but the device complexity increases
Solution Approach 1:
The drum is designed to rotate dynamically between a loading position and a discharge position. At the loading position, the heating zones are oriented for optimal heating; at the discharge position, the drum rotates to present the heated tortillas at a safe, accessible height away from the hot heating elements. This dynamic repositioning enables safe discharge without requiring complex additional mechanisms.
Solution Approach 2:
The rotating drum mechanism uses gravity and simple mechanical linkages to move tortillas from the high-temperature heating zone to a low-temperature discharge zone at a convenient height for the user. The rotation creates an equipotential transition where tortillas are continuously moved through different thermal and positional states, delivering them safely without requiring the user to reach into hot areas.
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
The tortilla toaster efficiently heats six tortillas in about 90 seconds, ensuring even toasting on both sides while preventing burns and electrocution risks, using a safe and enclosed heating system that maintains the desired consistency and safety standards.
Implementation Method 1
heat is provided by Nichrome wires wrapped around a mica board
Implementation Method 2
with a barrel or drum pivot of the heating area
Implementation Method 3
Nichrome wires wrapped around a mica board... that mica board is sandwiched between two other mica boards
Data Source
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AI summary
An improved tortilla toaster that batch heats on two sides simultaneously up to six tortillas where each tortilla is held an optimal distance away from heating source and the oven is unloaded by barrel-rolling the oven assembly so as to avail of gravity and tortilla shape to unload the oven.