Patent ID: 6221170
Filing Date: 2001-04-24
Classification: A42B,A61F,A62B,B63C

Abstract:
A method of wiping fog from the inner surface of a face plate of a diving mask, comprising the steps of:a) providing a diving mask having a viewing face plate, said face plate having an inner and an outer surface;b) providing a movable magnetized master unit, said master unit comprising a first cylindrical magnet having a first porous nonabrasive material, wherein said master unit is positioned on the outer surface of the viewing face plate;c) providing a magnetized slave wiping unit, said slave wiping unit comprising a second cylindrical magnet having a second porous nonabrasive material, wherein said slave wiping unit is positioned on the inner surface of the viewing face plate;d) providing a magnetic spring wire resting unit for the slave wiping unit, said spring wire resting unit being located within the diving mask and adjacent the inner surface of the viewing face plate so as to be laterally out of the line of site of the diver, wherein the spring wire resting unit magnetically attracts and holds the slave wiping unit in place when said slave wiping unit is not in use;e) magnetically coupling said slave wiping unit to said magnetic spring wire resting unit;f) removing said slave wiping unit from said magnetic spring wire resting unit by magnetically coupling said master unit to said slave wiping unit; andg) moving said master unit across the outer surface of the face plate thereby causing said slave wiping unit to move across the inner surface of the face plate such that said slave wiping unit wipes off fog present on said inner surface of said face plate of the diving mask.