Patent ID: 6244288
Filing Date: 2001-06-12
Classification: B60P,F16K,Y10T

Abstract:
A liquid fuel transport tanker truck comprising, in combination, an emergency and shut-off valve assembly for controlling the flow of liquid fuel from the tanker truck storage tank compartment to the tanker truck delivery pipe, the assembly comprising,a housing having an upstream section for receiving liquid from the storage tank and a downstream section for delivering liquid to the delivery pipe, and a shear groove located between said upstream and downstream sections and for separating said upstream and downstream sections in response to an impact force applied to one of said upstream and downstream sections,a first valve subassembly located upstream of said shear groove for selectively controlling the flow of liquid from the storage tank into said upstream section, anda second valve subassembly for sealing closed the liquid flow path through said downstream section in response to the separation at said housing shear groove of said downstream section from said upstream section,wherein liquid fuel within said delivery pipe during transport will be trapped in said delivery pipe by said second valve when said downstream and upstream sections become separated.