Tamper-Resistant Hot Pot with Double-Walled Base and Security Ring

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Solution Overview

Problem

In institutional environments, existing hot pots pose a risk of tampering, which can lead to unsafe conditions for both users and personnel due to the potential for unauthorized access and manipulation of the heating elements and electrical components.

Innovation Solution

A tamper-resistant hot pot design featuring a double-walled base with a power cord knot compartment, security ring, and thermal protection mechanisms, including a thermostat element and thermal cut-off, to prevent unauthorized access and tampering, with a translucent base allowing visual inspection for contraband and a secure power cord anchoring system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a traditional single-walled base design is used, then the device complexity is low and ease of manufacture is high, but the reliability is poor and tampering risk is high

Engineering Contradiction:
Improvetamper resistanceVSAvoidbase structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The base is divided into two separate walls (first wall and second wall) forming a double-walled structure with an interior space between them. This segmentation prevents tampering by creating physical barriers and restricting access to internal components, while still maintaining a manageable structural complexity through modular construction.

Inventive Principle:
Principle #1Segmentation

2Difficulty of detecting and measuring

If the base is made opaque for structural strength, then the strength is high, but the ability to detect contraband visually is poor

Engineering Contradiction:
Improvecontraband detectionVSAvoidbase strength
Core Design Contradiction:
Difficulty of detecting and measuringVSStrength

Solution Approach 1:

The base walls are constructed with translucent material that provides localized transparency in the regions where contraband detection is needed, while maintaining sufficient structural strength. This local quality change allows visual inspection of the interior space without compromising the overall structural integrity of the base.

Inventive Principle:
Principle #3Local quality

3Reliability

If the power cord is left accessible for ease of operation, then the ease of operation is high, but the reliability is poor due to tampering risk

Engineering Contradiction:
Improvepower cord securityVSAvoidpower cord access
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The power cord is pre-anchored to the base structure at multiple points within the double-walled interior space, creating preliminary security measures that prevent tampering before it can occur. The cord is routed through the interior space and secured to both walls, ensuring it remains protected during normal operation while still allowing functional access when needed.

Inventive Principle:
Principle #10Preliminary action

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 design effectively prevents tampering by securing the power cord and heating elements, providing visual tampering indicators, and ensuring safe operation by limiting access to internal components, thus enhancing safety in institutional settings.

Implementation Method 1

A heating element support extends across a hot pot at or adjacent to a bottom of the body. The heating element support supports a heating element.

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

A thermostat element is disposed in the hollow interior of the base and is anchored to the heating element support.

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 3

thermal protection mechanisms, including a thermostat element and thermal cut-off

Methodology Applied
Scientific EffectThermal protection: Thermal Insulation

Data Source

PatentUS9763532B1Tamper resistant hot pot
Publication Date: 2017.09.19 GREENFIELD WORLD TRADE INC
  • US9763532B1 patent drawing
  • US9763532B1 patent drawing
  • US9763532B1 patent drawing

AI summary

A hot pot has a body with an open top and an outward rim around a periphery adjacent to a bottom of the body. A heating element support supports a heating element and extends across the bottom of the body to define a liquid-receiving volume for the hot pot. The hot pot has a base with a side wall and a bottom panel extending across the sidewall. The side wall and bottom panel define a hollow interior for the base. The side wall has an outward lip extending around the side wall opposite the bottom panel. The side wall lip abuts the body outwardly extending rim. The hot pot further has a security ring extending around the side wall lip and the body outward rim. The security ring is fixed to the hot pot in such a way as to destroy structural integrity of the hot pot upon its removal.