Safety guard for airless spray apparatus

A spray gun apparatus for airlessly spraying a liquid, comprising:

• (a) a spray gun housing defining a fluid supply cavity having inlet and outlet ports;
• (b) a spray tip connected to said housing at said outlet port suitable for providing a spray of high-pressure fluid passing therethrough, said spray tip defining an orifice extending along an axis and having upstream and downstream ends;
• sand upstream end being connected in fluid communication with said supply cavity;
• (c) means operatively connected with said cavity inlet port for supplying a liquid under pressure to said supply cavity from a pressurized source of such liquid;
• and
• (d) a safety tip guard operatively connected to said housing and disposed adjacent said downstream end of said spray tip orifice and having a portion thereof extending in the direction of said orifice axis, said extending portion having a wall defining a tip guard cavity connected in fluid communication with said supply cavity said tip guard cavity extending to a position downstream of the orifice;
• wherein
• a breach in said wall will cause a portion of liquid within said tip guard cavity to escape through the breach, thereby decreasing pressure within said supply cavity at said upstream end of said spray tip orifice.