Tank overflow automatic safety device - comprises valve on movable support in housing shutting off vent pipe

摘要

The automatic overflow safety device is for a tank vent, particularly on a motor vehicle. It comprises a housing (3) containing a movable support (10) for a device (9) shutting off the opening (8) of a vent pipe (2). The device can be in the form of a gravity-operated valve, while the support can be a pendulum with a rounded recess (15) at one end whose faces rise towards the outside. These act as supporting surfaces for the valve body. The pendulum can be mounted in an opening (11) in the housing.