Pop-Up Toaster with Integrated Steam System and Slot Sealing
Solution Overview
Problem
Conventional toasters lack an integrated steam system for steaming bread slices during the toasting process, which is typically found in toaster ovens, limiting the ability to achieve the moisture and freshness of a freshly-cooked loaf in pop-up toaster designs.
Innovation Solution
A pop-up toaster with a steam system that includes a casing, chassis, heating elements, a pop-up mechanism, and a closing system, featuring a steam vessel and grates to center the bread slice, and a steam pipe connected to a water reservoir, allowing for steam production and absorption during toasting, while the closing system automatically seals the slot during the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a steam system is integrated into a pop-up toaster, then the moisture and freshness of the toasted bread is improved, but the device complexity increases
Solution Approach 1:
The steam system is integrated within the existing toaster housing, combining the steam generation function with the toasting mechanism. The water reservoir, steam pipe, and heating element work together within the same device structure, merging multiple functions (steaming and toasting) into a single unit rather than separate appliances.
Solution Approach 2:
The toaster is designed to perform multiple functions: traditional toasting and steam injection. The steam system allows the same device to both brown the bread surface and maintain internal moisture, making the toaster versatile in achieving different textural outcomes from a single appliance.
2Quantity of substance
If the slot is opened during toasting for steam injection, then the steam can be introduced to the bread, but heat loss occurs reducing toasting efficiency
Solution Approach 1:
The slot is pre-opened before the toasting cycle begins, allowing the steam injection system to be ready for immediate operation. This preliminary positioning of the slot ensures that when steam is needed, the path is already clear without requiring additional mechanical movement during the toasting process.
Solution Approach 2:
The steam pipe acts as an intermediary component that delivers steam directly to the bread through the slot opening. This mediator allows steam injection without requiring the slot to be fully opened or manipulated during toasting, maintaining heat retention while enabling steam delivery.
3Manufacturing precision
If grates are used to center the bread slice, then the bread positioning is improved, but the device complexity increases
Solution Approach 1:
The grates are designed to automatically center the bread slice through their mechanical arrangement. When the bread is placed on the grates, the structure itself guides and positions the bread centrally without requiring external intervention or complex control mechanisms. The grates serve their own positioning function through their geometric design.
Solution Approach 2:
Instead of using motorized or electronically controlled positioning systems, the patent uses a simple mechanical grate structure to achieve bread centering. This mechanical solution replaces what could have been a complex automated positioning system with a passive, geometry-based approach.
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 toaster effectively steams and toasts bread slices, maintaining moisture and freshness, with the steam system enhancing the toasting experience by ensuring steam absorption during the toasting cycle, and the pop-up mechanism ensures easy bread retrieval.
Implementation Method 1
at least one heating element in the casing for generating toasting heat
Implementation Method 2
a steam system within the casing configured for producing steam and feeding the steam to a steam vessel in the chassis during the toasting/steaming process
Data Source
AI summary
A toaster with a steam system comprises a casing and a chassis. A slot for a bread slice is defined by the chassis. A pop-up mechanism is within the casing and supported by the chassis, the pop-up mechanism configured for supporting a bread slice received via the at least one slot, and for raising the bread slice to project partially out of the slot at an end of a toasting/steaming process. Heating element(s) in the casing are for generating toasting heat. A steam system within the casing is configured for producing steam and feeding the steam to a steam vessel in the chassis during the toasting/steaming process. A closing system has flap(s) to close the at least one slot during the toasting/steaming process, and to open the at least one slot at completion of the toasting/steaming process.