AUTOMOBILE WINDSHIELD AND BACKLIGHT WASHER HEATED SPRAYER Russian patent published in 1997 - IPC

FIELD: transport engineering; automobile accessories. SUBSTANCE: sprayer has plastic body with fitted in plastic water supply union, thermal member which can be connected to automobile electric system and at least one water guide member with through hole. Metal tube is installed between union and water guide member in direction of water flow. Inlet and outlet portions of tube are fitted in ring sockets of corresponding shape. Air space is provided between tube and walls of body. Thermal member is made in form of posistor resting on surface of middle portion of metal tube and located in zone of above-indicated air space. Plate electric contacts projecting from body are electrically coupled with posistor. Conical socket is made in body at side of water guide member. Conical socket is mated over larger diameter with corresponding seat, and water heating member is installed in channel of body mated with conical socket. Posistor can be made tubular and mounted over middle portion of metal tube or can be made in form of tablet pressed to support flat on tube. EFFECT: enhanced serviceability of washer in cold weather by heating air space under water guide member. 7 cl, 4 dwg