Patent Document ID: 4141295
Application ID: 05879286
Patent Flag: 1

Claim One:
1. A mine simulator, comprising: a housing defining a water-tight compartment; a float having a plurality of signaling devices; a tetherline having two ends and a first predetermined finite length, said line being attached on one end to said housing and attached on the other end to said float; detecting means within said compartment for producing a ship count signal in response to the proximate passage of a body; processing means within said compartment and communicating with said detecting means for producing a signaling device launch signal in response to a predetermined number of said ship count signals; recording means within said compartment and communicating with said processing means for making a permanent record of said ship count signals; and sequencing means within said float communicating with said processing means and with said signaling devices for selectively activating said signaling devices in response to said launch signals.