Abstract: A horizontal and vertical shock responsive fluid valve assembly which are capable of automatically closing a fluid valve in response to earthquake forces or other shock forces of a predetermined magnitude. The assemblies are comprised of a respective horizontal and vertical shock and vibration force triggering mechanism working in a similar fashion. The mechanism has a respective cradle comprising a generally concave transverse surface that holds a movable ball and when it is energized by the forces can rotate 360 degrees in any direction and rolls out of the surface such that the ball ricochets off a housing cover covering the cradle and activates the mechanism only when the external forces reach a predetermined magnitude.

Abstract: A shock actuated valve including a first structure mounted to swing about a first axis and which is releasably retained by a first latch in a first position, with the latch being automatically releasable when the device is subjected to earthquake forces or other shock forces, and a second structure including a valve and which is mounted to swing about a second axis and is releasably retained in an open valve position by a second latch controlled by the first swinging structure. When shock forces cause release of said first structure for swinging movement from its reset position, such swinging movement automatically releases the second structure and its valve for spring urged swinging movement in a direction closing the valve.