# US 2008/0184612 A1 · Ice fish casting submarine having bait/ lure carrying compartment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2008/0184612 A1 - Document ID: US20080184612A1 - Status: Published application - Kind: A1 - Application number: 11/702,290 - Filed: 2007-02-06 - Published: 2008-08-07 - Earliest claimed: 2007-02-06 - Inventors: Mark T. Piska - Web page: https://patentgrep.com/patent/US20080184612A1 ## CPC - A01K 91/02: Devices for casting lines - A01K 97/01: for ice-fishing {; Ice drilling, hook-setting or signalling devices} - A01K 97/04: Containers for bait; Preparation of bait - A01K: ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS ## Abstract An ice fishing submarine for carrying an end portion of a fishing line radially away from an ice fishing hole comprising: i) a hull enclosing a propulsion system which includes a battery which powers an electric motor which turns a propeller; ii) a power switch to begin propulsion away from the ice hole; and, iii) a tether having an unfixed end secured to the submarine and configured to interrupt power to the propulsion system when the tether becomes taut. When the submarine travels the distance of the length of the tether radially away from the ice hole the tether then becomes taut thereby automatically switching power off to the propulsion system of the submarine, and thereby eliminating the necessity of running control wires extending down through the ice hole to the submarine and monitoring the travel of the submarine to turn off power at an appropriate time. ## Claims ### Claim 1 An ice fishing submarine for carrying an end portion of a fishing line radially away from an ice fishing hole comprising: i) a hull enclosing a propulsion system which includes a battery which powers an electric motor which turns a propeller; ii) a power switch to begin propulsion; and, iii) a tether having an unfixed end secured to the submarine and configured to interrupt power to the propulsion system when the tether becomes taut; and, iv) a bait/ lure compartment within the submarine for enclosing and carrying the end portion of the fishing line, said bait/ lure compartment having an external door which automatically opens dumping the end portion of the fishing line into the water when a pin, attached to the unfixed end portion of the tether, is pulled when the tether becomes taut, so that when the submarine travels the distance of the length of the tether radially away from the ice hole, the tether then becomes taut and thereby automatically pulls the pin, opening the external door and switching power off to the propulsion system of the submarine, thereby eliminating the necessity of running control wires extending down through the ice hole to the submarines, monitoring the travel of the submarine to turn off power at an appropriate time, as well as preventing any entanglement with the bait/ lure which is enclosed within the submarine during launching and motion of the submarine away from the ice fishing hole. ### Claim 2 (depends on 1) An ice fishing submarine as in claim 1 wherein a power switch within the submarine moves to a normally open position when the external door is opened thereby turning off the submarine propulsion system. ### Claim 3 (depends on 2) An ice fishing submarine as in claim 2 further comprising an elongate deployment member to hold and push the submarine down into the water and thereafter point the submarine in the desired direction of travel, said deployment member and submarine configured so that propulsion power is automatically switched on in the submarine when the deployment member is disengaged from the submarine, said deployment member thereby facilitating directed placement of the submarine in the cold water without splashing from the propulsion system, and thereafter engaging the propulsion system without requiring one to reach in the cold water. ### Claim 4 (depends on 3) An ice fishing apparatus as in claim 3 wherein said lower end portion of the deployment member is engaged within a top opening in the submarine, and wherein the deployment member further comprises a radially extending member to better hold the submarine and wherein the submarine is configured so that power is switched on to the propulsion system therein when the deployment member is disengaged therefrom. ### Claim 5 (depends on 4) An ice fishing submarine as in claim 4 wherein the deployment member comprises a deployment stick and the radially extending member comprises a cross stick spaced upwardly from the bottom side portion of the deployment stick. ### Claim 6 (depends on 1) An ice fishing submarine as in claim 1 further comprising a longitudinal tunnel extending through the hull and wherein the propeller is rotated within a central portion of a longitudinal tunnel thereby preventing entanglements with the propeller. ### Claim 7 (depends on 1) An ice fishing submarine as in claim 1 further comprising two laterally spaced longitudinal blades extending above and along a substantial portion of the length of the submarine to facilitate sliding immediately below and in contact with the ice with minimal resistance. ### Claim 8 (depends on 1) An ice fishing submarine as in claim 1 wherein a bottom portion of the submarine hull is detachable to allow access for maintenance and battery regeneration. ### Claim 9 (depends on 2) An ice fishing submarine as in claim 2 wherein the bait/ lure compartment comprises three chambers, one to carry a lead line having one end portion attached to the end portion of the fishing line, one to carry a sinking weight attached to the lead line, and one to carry a lure/ baited hook also attached to the lead line. ### Claim 10 (depends on 9) An ice fishing submarine as in claim 9 wherein the sinking weight chamber in the bait/ lure compartment has a sloped floor so that when the external door is opened the sinking weight will slide therefrom pulling after it the lead line and the lure/ baited hook. ### Claim 11 (depends on 9) An ice fishing submarine as in claim 9 wherein the baited hook/ lure chamber comprises flexible whiskers to prevent a baited hook/ lure pushed therethrough from sliding out of the chamber without being pulled on. ### Claim 12 An ice fishing submarine for carrying an end portion of a fishing line radially away from an ice fishing hole comprising: i) a hull enclosing a propulsion system which includes a battery which powers an electric motor which turns a propeller; ii) a tether having an unfixed end attached to the submarine; and, iii) an internal bait lure compartment within the submarine having an external door which automatically opens when the tether line becomes taught; so that an end portion of the fishing line can be enclosed within the bait/ lure compartment for convenient and unentangled placement within and transport away from the ice fishing hole.