Patent ID: 7818913

Claim:
An ice fishing tip-up device, comprising: a base adapted for placement over a hole cut into ice formed on a body of water; a pivotal axis defined generally parallel to a surface of said body of water; a lever pivotal about said pivotal axis between a first ready position and second strike indicative position and having a trip end and a line-engaging end configured for removable coupling to a fishing line, said line-engaging end distal to and separated from said trip end by said pivotal axis, said line-engaging end comprising an open slot through which said fishing line passes unencumbered and through which passage of a bobber stop is blocked, said open slot having an open slot end adjacent an end of said lever and having a closed slot end more nearly adjacent to said pivot point than said first open slot end, said closed slot end farther from said body of water than said open slot end when said lever is pivoted into said first ready position and said closed slot end closer to said body of water than said open slot end when said lever is pivoted in said second strike indicative position; a resilient member contacting said lever at a first contact point on said trip end when said lever is in said first ready position, said resilient member resiliently biased to apply an adjustable force to said lever encouraging said lever to pivot in a rotary direction about said pivotal axis towards said first ready position and move said line engaging end farther from said body of water, said resilient member uncoupled from said first contact point when said lever is in said second strike indicative position; and an indicator responsive to said lever position to indicate said first ready position and said second strike indicative position.