초록 ▼

Filling units for supplying small tanks or the like with gasoline, kerosene, or other flowable materials which attach to an inlet to such a tank. When the filling unit is in a fill position, a displacer section occupies a substantial volume within the tank and allows the person filling the tank to s

Filling units for supplying small tanks or the like with gasoline, kerosene, or other flowable materials which attach to an inlet to such a tank. When the filling unit is in a fill position, a displacer section occupies a substantial volume within the tank and allows the person filling the tank to supply the liquid until the tank will accept no more and the liquid reaches a predetermined level in a funnel portion of the filler. Thereafter, manipulation of the displacer section, as for example by withdrawing a section of the overall unit upward opening a valve or movement within the tank itself, causes all the liquid remaining in the funnel up to such predetermined level to be accommodated within the tank by occupying the volume previously occupied by the displacer section and thereby completing the filling of the tank to a full condition without any spillage. The overall unit may be such that it is intended to be removed from the tank after each filling operation (and preferably stored in an optional, integral storage compartment), or it may be designed to fit permanently within a tank inlet and to be movable downward to a storage orientation, which allows the replacing of the protective screw cap that normally closes the tank.

대표청구항 ▼

A filling unit to prevent overfilling of a container having an upstanding generally tubular inlet which container inlet is normally closed by attaching a closure thereto, which filling unit comprises (a) means for engaging said tubular container inlet to seal therewith, (b) funnel means for receivin

A filling unit to prevent overfilling of a container having an upstanding generally tubular inlet which container inlet is normally closed by attaching a closure thereto, which filling unit comprises (a) means for engaging said tubular container inlet to seal therewith, (b) funnel means for receiving liquid and leading to an always open depending passageway through which free flow of liquid substantially unhindered by surface tension can occur into said container and through which air in said container can escape upward, said funnel means having a filling position extending above said tubular inlet when said closure is removed, (c) displacer means linked to said engaging means and said funnel means which has a hollow interior region and extends through said tubular inlet when installed and is disposed within said container, said displacer means itself displacing a predetermined amount of liquid in the container when said funnel means is in said filling position, said predetermined amount being such that, when said container is filled with liquid so that liquid extends upward to a predetermined level in said funnel means when in said filling position, said displaced predetermined amount is sufficient so that the entire volume of liquid occupying said funnel means up to said predetermined level when in said filling position can be accommodated in said container, and (d) valve means preventing said hollow interior region of said displacer means from filling when said funnel means is in said filling position and the remainder of the interior of said container is filling with liquid but, upon manipulation without breaking said seal between said engaging means and said container inlet, allowing flow of liquid into said hollow interior region and additional flow of liquid from said funnel means into said container, whereby filling may be carried out so that the liquid level extends above the upper end of said container inlet to a visible location within said funnel means, and whereby manipulation of said preventing means permits all the liquid previously remaining in said funnel means up to said predetermined level in said filling position to be accommodated in said container.