On-Board Chumming System with Sealed Comminution Chamber
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Solution Overview
Problem
Existing chumming methods, such as using frozen chum blocks or manual cutting of bait, are inconvenient and pose safety hazards, particularly on a boat, with limited control over bait content and risk of infectious pathogens.
Innovation Solution
An on-board chumming apparatus for marine vessels that includes a downtube with a comminution mechanism to pulverize bait, mixed with water, and a pump to disperse the chum slick, ensuring safety and control over bait content while preventing human contact with the comminution process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a grinder is used to grind bait into chum, then the bait can be processed into chum, but it presents a safety hazard due to infectious pathogens and the risk of injury on a rolling boat
Solution Approach 1:
The harmful comminution mechanism is extracted from the open deck environment and placed inside a sealed hull-mounted chamber. The chamber isolates the grinding operation from the external environment, preventing pathogen exposure while containing the mechanical hazard. Only the necessary input (bait) and output (chum) interact with the external environment, eliminating the safety risks associated with open-grinder operations on moving boats.
Solution Approach 2:
A sealed chamber acts as an intermediary between the comminution mechanism and the external environment. This intermediate structure allows the hazardous grinding operation to occur without direct exposure to humans or the external marine environment. The chamber wall serves as a barrier that isolates pathogens and injury risks while still allowing the chumming function to be performed effectively.
2Adaptability or versatility
If manual cutting of bait into chum is performed, then the angler can select the type of bait to be used, but it is tedious and time-consuming
Solution Approach 1:
The system enables self-service by allowing the angler to simply drop bait into the feed portion, and the automated comminution mechanism processes it without manual intervention. The machine performs the tedious cutting and processing work that would otherwise require continuous manual labor, while the angler maintains control over bait selection by simply placing the desired bait type into the chamber.
Solution Approach 2:
The manual mechanical cutting process is replaced with an automated comminution mechanism inside the sealed chamber. This substitution eliminates the need for manual knife work and repetitive cutting operations, dramatically reducing the time required for bait preparation while maintaining the angler's ability to select and control the bait type.
3Ease of operation
If a frozen chum block is used, then chum can be provided without manual processing, but the angler has no control over the contents and must dispose of or re-freeze unused portions
Solution Approach 1:
The system transitions from a static frozen chum block to a dynamic processing system where bait is continuously fed, processed, and dispensed. The angler can dynamically control the bait input by dropping selected bait into the feed portion, and the system automatically processes it. This dynamic operation eliminates the need to dispose of or re-freeze unused portions, as the system can continuously process bait as needed.
Solution Approach 2:
The system changes the state of bait from frozen (in a chum block) to fresh or thawed bait pieces that are processed in real-time. This parameter change allows the angler to control the bait content by selecting fresh bait to process, rather than being limited to the predetermined contents of a frozen block. The system can adjust the processing parameters to handle different bait types and quantities.
4Productivity
If a grinder is placed on deck for bait processing, then bait can be ground into chum, but it creates safety hazards from injury and pathogen exposure on a rolling boat
Solution Approach 1:
The comminution mechanism is nested inside a sealed chamber that is mounted on the boat. This nested structure places the hazardous grinding operation within a protective enclosure, isolating it from the external environment and the operator. The chamber acts as a containing structure that protects against both injury and pathogen exposure while still allowing the chum production function to operate effectively.
Solution Approach 2:
The sealed chamber provides a flexible barrier that encloses the comminution mechanism. This shell structure protects against the spread of pathogens and prevents direct contact between the operator and the hazardous grinding process. The sealing maintains the isolation while allowing the system to operate reliably in the dynamic marine environment.
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 apparatus effectively disperses a controlled chum slick to attract fish, enhancing fishing efficiency while ensuring safety by preventing human contact with the comminution process and minimizing waste handling issues.
Implementation Method 1
a pump connected to the water inlet which is configured, when activated, to pump water from outside the marine vessel through the water inlet into the downtube at the top end of the downtube
Implementation Method 2
a comminution mechanism configured to comminute bait dropped into the feed portion
Data Source
AI summary
An on-board chumming system and vessel using same include a generally vertically oriented downtube that connects a feed portion at the top with a comminution chamber at the bottom. A water inlet at the top of the downtube facilitates the bait falling into the comminution chamber to be pulverized and mixed with water to create the chum, which flows out of the comminution chamber through an outlet that passes through a side of the vessel.