Johnson Outdoors Inc.

Reima K Holopainen

Jari M A Tiira

Bradley E Lally

Joe Stella

Arne Sieber

Sebastian Reif

Thomas Burger

Stefan E Wegmann

Bruno Meinrad Erne

Jari MA Tiira

An underwater mask including a condensing member is provided. The mask includes a lens exposed to ambient water as well as to an air compartment of the mask that is adjacent a diver's face. The mask includes a condensing member that has an inner surface that is exposed to the air compartment and that is configured to promote condensing of moisture within the air within the air compartment thereon prior to the moisture condensing on an inner surface of the lens. The condensing member may be passive and rely on thermal conductivity properties of the member or be actively electrically controlled.

Antifog scuba mask

A tank pressure transmitter with integrated breathing gas analyzer and associated methods are provided. The tank pressure transmitter can include a gas sensor which detects a constituent of a breathing gas. The transmitter is operable to compile a constituent reading from the constituent detected, and communicate this constituent reading wirelessly to a dive computer.

Tank pressure transmitter with integrated breathing gas analyzer

A stroke counter and a method of analyzing strokes of swimmer are provided. The stroke counter and method use changes in pressure proximate the arms and legs of the swimmer to determine when the swimmer performs a swimming stroke using either the arms or legs.

Swim stroke counter

A dive computer system that includes a primary power source and a console, located remotely from the power source. The console includes a display screen configured to be readable underwater. The primary power source is connected to the console via a cable. The console does not include a connection for a gas hose. In certain embodiments the dive computer includes a secondary power source, while in further embodiments the dive computer has a color display.

Modular dive computer

A dive computer system that utilizes a direct skin temperature measurement is provided. The dive computer system includes a measurement device that includes a temperature sensor and is attached to a strap. The strap is placed around a diver's chest and configured to measure the diver's skin temperature. The skin temperature is wirelessly transmitted to a dive computer that utilizes a dive algorithm to determine compartment inert gas saturation and desaturation. The dive algorithm determines an updated skin perfusion factor that is in turn utilized to determine an updated half time for the skin compartment for inert gas desaturation and a pressure tolerance for the skin compartment for inert gas saturation.

Growing community of inventors

Zufikon, Switzerland

Reima K Holopainen