Flexible Extension Device for Remote Propane Tank Valve Operation
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Solution Overview
Problem
Users of propane grills face difficulties in accessing and operating the main valve on propane tanks, which can be inconvenient and hazardous, especially when the tank is positioned out of reach or behind the grill.
Innovation Solution
An extension device comprising a user knob, a flexible connector, and an adaptor that allows remote operation of the valve, enabling the user to open and close the main valve without having to physically access the tank by transferring rotational motion through a flexible rod and collar structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the main valve is positioned on the propane tank for direct access, then the valve can be easily operated by hand, but the user must physically access the tank which may be positioned out of reach or behind the grill, creating inconvenience and safety hazards
Solution Approach 1:
The patent introduces an extension device as an intermediary mechanism between the user and the main valve. This device includes a rod that connects to the valve knob and extends outward from the tank, allowing the user to operate the valve remotely without directly accessing the hot grill area. The extension rod transfers the user's rotational force to the valve mechanism while maintaining physical separation between the user and the hazardous zone.
2Adaptability or versatility
If the propane tank is positioned behind or below the grill for space efficiency, then the grill layout is compact and organized, but the valve becomes inaccessible requiring the user to bend down or lean over
Solution Approach 1:
The extension device adds a spatial dimension to the valve operation. Instead of requiring the user to move horizontally or vertically to access the valve, the extension rod projects the valve control interface outward from the tank in a new direction. This allows the valve to be operated from a distance, effectively adding a reach dimension that resolves the conflict between compact tank positioning and accessible valve operation.
3Productivity
If the valve knob is directly exposed on the tank, then the valve can be quickly accessed, but the user is exposed to heat and potential gas leaks when operating it near the grill
Solution Approach 1:
The extension rod serves as a safety intermediary that allows rapid valve operation without direct exposure to hazards. The rod maintains a mechanical connection for quick response while creating physical distance that protects the user from heat and potential gas leaks. This enables the user to quickly open or close the valve in emergency situations or during normal operation without compromising safety.
Data Source
AI summary
An extension device for remotely opening and closing a valve from a user knob is described. The device includes a flexible connector that allows the user knob to be positioned in various places relative the valve. One use for the disclosed device is with a gas grill, wherein the gas tank is placed in a position that is not easily accessible or is difficult for some persons to access. The extension device may be mounted in various positions on or near the grill allowing the user to open and close the gas tank's valve before and after use of the grill.