Container filling means

Claim 1

In a filling device having a container for filling with liquid petroleum gas and for inducing flow thereof from a storage tank to a predetermined level in the container and for discontinuing flow thereafter, said device comprising: a first portion fixedly secured to said container, said first portion defining a filling flow path for liquid flow and defining a draining flow path therein for draining gaseous gas from the inside of said container when filling the same with liquid gas, a valve inserted in each of said flow paths, each of said flow paths in said first portion terminating at an inner end, said inner ends being positioned at two different levels within said container, a second portion, means to removably connect said second portion to said first portion, said second portion defining two separate flow paths communicating with and continuing said filling flow path and said draining flow path, respectively, when said second portion is secured to said first portion, said drain path in said second portion being connectable to a suction pump to drain the container of residual pressure and to induce liquid gas from a storage tank to spontaneously flow into said container through said filling flow path, a valve body for said valve inserted in said filling flow path movable to an open position in the direction of the filling flow, a valve body for said valve inserted in said draining flow path movable to an open position in a direction opposing the direction of the draining flow when filling said container, means associated with said second portion for moving said valve bodies into said open positions when said second portion is connected to said first portion, and a further valve in said draining flow path responsive to covering of said lower end of said drain path and to flow of liquid gas upwardly in said drain path to said further valve to shift the latter and to further flow therethrough and thereby cause a termination of filling.