Patent ID: 6844845
Filing Date: 2005-01-18
Classification: G01S,H05K

Abstract:
1. A waterproof combined global positioning system navigation unit and two-way radio communications unit (GPS/radio unit) configured for wirelessly communicating with at least one other such GPS/radio unit, the at least one other GPS/radio unit being configured to transmit radio signals indicative of that GPS/radio unit's location, the GPS/radio unit comprising: a global positioning system receiver for receiving satellite signals from a plurality of satellites; a processor coupled with the global positioning system receiver for calculating the location of the GPS/radio unit as a function of the received satellite signals; a radio transceiver coupled with the processor for receiving the radio signals transmitted by the at least one other GPS/radio unit and for transmitting a radio signal to the at least one other GPS/radio unit, wherein the transmitted radio signal is indicative of a location of the GPS/radio unit, and wherein the processor is configured to identity the location of the at least one other GPS/radio unit based upon the received radio signals; a display coupled with the processor for indicating the location of the at least one other GPS/radio unit; and a waterproof housing enclosing the global positioning system receiver, the processor, the radio transceiver and the display, the waterproof housing comprising a first housing section and a second housing section, wherein the second housing section is cooperatively coupled with the first housing section to create a watertight seal therewith, wherein one of the first housing section and the second housing section includes a peripheral edge carrying a continuous elastomeric gasket thereon, the other of the first housing section and the second housing section Includes a peripheral edge against which the continuous elastomeric gasket is compressed, and wherein the continuous elastomeric gasket Includes a continuous seal head protruding from a face thereof, the peripheral edge of the other of the first housing continuous seal head is compressed against the polished flat.