Modular anti-fog goggle system

Abstract

Modular, anti-fog goggle system comprising: lens with an anti-fog heating element and electrical contact, a semi-rigid anterior body comprising an inner peripheral engagement receptacle for receiving the lens within the body, the lens being releasably retained by a removable lens retaining member preferably comprising a tongue releasably interconnected with a groove in the body, the anti-fog element on the lens being releasably connected with a battery preferably retained within the body, the releasable electrical connection being reinforced by the tongue and groove interconnection, a flexible posterior interface being adapted for interposition between the removable lens retaining member and a user's face, and strap means adapted for holding the goggle on the user's head or helmet and reinforcing the interconnection between the removable lens retaining member and the body.

What is claimed is: 
     
         1 . A modular, anti-fog goggle system comprising:
 a battery;   a semi-rigid anterior body further comprising first and second ends, a receptacle adapted for receiving a lens and lens retaining member within said body, a portion of mated retention means attached around an inner periphery of said body and an electrical contact electrically connected to said battery;   a removable lens having an anti-fog heating element with an electrical contact thereon and further comprising first and second ends, an anterior surface, a posterior surface, and a peripheral edge;   a removable lens retaining member attached around the peripheral edge of said lens, said lens retaining member further comprising another portion of mated retention means attached around the periphery of said lens retaining member for releasably interconnecting with the portion of the mated retention means around the inner periphery of said body for retaining said lens and lens retaining member within the receptacle within said body with the lens positioned in front of a user's eyes so as to provide a shield for the eyes, wherein upon interconnecting of said lens retaining member with said body, the electrical contact on said lens is releasably connected with the electrical contact on said body allowing heating of said lens;   a flexible posterior interface attached to said removable lens retaining member adapted for engaging a user's face adjacent the user's eyes; and   strap means having first and second ends, the first end of said strap means interconnected with the first end of said body, and the second end of said strap means interconnected with the second end of said body, adapted for holding the goggle on one of a user's head and helmet, said strap means further adapted for reinforcing retention of said lens in said body and contact of the electrical contact in said lens with the contact in said body operatively connected with said battery.   
     
     
         2 . The modular, anti-fog goggle system of  claim 1 , wherein the portion of the mated retention means attached around the inner periphery of said body comprises a tongue and the portion of mated retention means attached around the periphery of said lens retaining member comprises a groove, the tongue and groove portions of the retention means adapted for releasably interconnecting said body and said lens retaining member to retain said lens within said body and to retain the contact of the heating element on said lens in contact with said electrical contacts operatively connected with said battery. 
     
     
         3 . The modular, anti-fog goggle system of  claim 1 , wherein said battery is carried in said body. 
     
     
         4 . The modular, anti-fog goggle system of  claim 3 , further comprising a battery strength indicator means carried on said body. 
     
     
         5 . The modular, anti-fog goggle system of  claim 3 , further comprising heat adjustment mean on said body and operatively connected with said battery. 
     
     
         6 . The modular, anti-fog goggle system of  claim 3 , further comprising an on/off switch on said body and operatively connected with said battery.