Patent Abstract: The Fish Ball (The Apex-Detect Hydro-Chemical Fish-Indicator Capsule)
Year: 2026
Type: preprint
Abstract: Patent Abstract: The Fish Ball (The Apex-Detect Hydro-Chemical Fish-Indicator Capsule) This project designs a battery-free, handheld floating capsule that uses natural water chemistry to find fish, solving the major flaws of expensive electronic sonar gadgets that drain power, distort in shallow waters, and confuse rocks or logs with real marine life. This innovative tool tests the water column for fresh proteins and hunting enzymes that predatory fish leave behind, using a heavy-grade optical sphere with a hollow tube passing directly through its center. As the device sinks through currents, a tiny internal valve pushes open to collect a deep-water sample, and the moment you reel it back up, water resistance slams the valve into a vacuum lock to seal the sample and prevent surface contamination. To stop false alerts from old slime trails or tiny baitfish, the water passes through a microscopic filter that blocks small molecules, allowing only heavy markers from large target fish to mix with a non-toxic liquid jacket. This secure mixture triggers a vivid color transformation from a baseline resting amber up to a striking cobalt blue or deep purple depending on how recently a hunting school was in the area, which you can easily read from over thirty feet away because the clear outer shell magnifies the sunlight. By relying on pure physical dynamics instead of electrical circuits, this device provides a massive environmental victory for our global rivers and oceans because it completely removes toxic lithium batteries and electronic components that decay into dangerous heavy metal waste when lines snap, giving anglers, marine researchers, and environmental groups an eco-friendly, zero-maintenance tool that protects wild habitats while pinpointing fish with absolute certainty.
Source: OSF Preprints (OSF Preprints)
Author: Lim Sang, Kirk Anthony
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7225383471