Gladhand with built-in dirt protection plug

摘要

A combination gladhand and dirt protection plug includes a gladhand body with a chamber within the body. There are a pair of air ports in communication with the chamber, with one of the ports functioning as an air inlet. A seal is positioned in one of the air ports and there is a dirt protection plug movable in the chamber toward and away from the seal to open and close said one port. A spring is positioned within the body to bias the plug toward a port closing position. The plug has a surface in communication with the air inlet, with air pressure at the inlet, applied to the plug surface, causing the plug to automatically move against the spring and away from the seal to an open position.