초록 ▼

A direct indicating automatic stop fill valve is mounted to the inlet to an LPG tank whereby inlet ports to the tank volume are covered by a slidably mounted cylinder which is raised through contact with a float/cam arrangement until the tank level reaches a predetermined level. The cylinder is then

A direct indicating automatic stop fill valve is mounted to the inlet to an LPG tank whereby inlet ports to the tank volume are covered by a slidably mounted cylinder which is raised through contact with a float/cam arrangement until the tank level reaches a predetermined level. The cylinder is then driven into a sealing position to stop the flow into the tank by a differential pressure force resulting from the inlet pressure being higher than tank fluid pressure. The cylinder also supports a drive magnet for actuating a gauging mechanism to visibly indicate the open or closed status of the stop fill valve.

대표청구항 ▼

A stop fill valve for stopping the flow of a fluid into a tank when the fluid in the tank reaches a predetermined level, comprising: a cylindrical body mounted to said tank at an opening therein and extending into the interior of said tank, said body having an axial bore extending partially along th

A stop fill valve for stopping the flow of a fluid into a tank when the fluid in the tank reaches a predetermined level, comprising: a cylindrical body mounted to said tank at an opening therein and extending into the interior of said tank, said body having an axial bore extending partially along the length of said body for receiving fluid from said opening, said body having at least one port extending through the side thereof and in fluid communication with said bore for delivering said fluid from said bore into said tank, said body further having a shoulder opposite said opening from said port; a cylinder slidably mounted on the exterior of said cylindrical body over said shoulder to form an annular space between said cylinder and said body, said cylinder having a lip at one end thereof for contacting the exterior of said body for closing said annular space, wherein said cylinder is driven by the pressure of said fluid to enclose said port and stop the flow of said fluid into said tank when said annular space is open to receive said pressurized fluid from said port; a shaft connected to and extending downward from said body; a pivot mounted on said shaft offset from said body; a lift member slidably mounted on said shaft for lifting said cylinder toward said cylindrical body, said lift member is disconnected from said cylinder and elevated above said lift member when said cylinder is driven by said pressurized fluid; a cam mounted to said pivot; a float assembly mounted to said cam wherein movement of said float assembly about said pivot toward said body causes said cam to drive said lift member toward said body which in turn lifts said cylinder to open said annular space to said port when said fluid in said tank has reached said predetermined level wherein said float assembly is not lifted by said cylinder when said cylinder is driven by said pressurized fluid.