초록 ▼

Filling units for filling small tanks or the like with gasoline, kerosene, or other flowable materials which attach 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. It allows the person filling the tank to supply

Filling units for filling small tanks or the like with gasoline, kerosene, or other flowable materials which attach 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. It 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, removal of the displacer section from the tank, as by sliding a section of the overall unit upward, allows the liquid in the funnel to enter the tank and fill the volume evacuated by the displacer section to complete the filling without any spillage. The overall unit may be removed from the tank each filling operation, or it may be designed to include a protective cap that fits over the upward-protruding portion of the unit, allowing the unit to remain mounted on the tank.

대표청구항 ▼

A filling unit to prevent overfilling of a container having an inlet formed with attachment means for attaching a closure to said container inlet, which filling unit comprises a first unit having upstanding funnel means for receiving liquid having a neck portion with an exterior surface surrounding

A filling unit to prevent overfilling of a container having an inlet formed with attachment means for attaching a closure to said container inlet, which filling unit comprises a first unit having upstanding funnel means for receiving liquid having a neck portion with an exterior surface surrounding the neck portion wherein said funnel means is formed integrally with depending displacer means and providing an always open passageway into said container, said funnel means having a visible upper level mark, and a second unit having a portion with first mating attachment means proportioned to engage said attachment means on said container inlet and seal thereto, said second unit having interior passageway means proportioned to slidably receive said first unit so that said funnel means extends upward therefrom and so that said displacer means extends therebelow to a level so that it displaces a predetermined substantial amount of liquid in the container when said first unit is slidably rectilinearly moved to a lower filling position and when filling with liquid to said upper level mark is carried out, said exterior surface of said neck portion and said interior passageway means in said second unit being proportioned so that an air passageway is always provided between said exterior surface and said interior passageway, said first unit having retainer means which interengages with said second unit and prevents inadvertent disengagement of said first and second units when said first unit is moved slidably rectilinearly upward to an uppermost removal position, said predetermined amount being such that filling may be carried out so that the liquid level extends to said visible upper level mark within said funnel means, whereby removal of said displacer means from within the container causes the liquid level to drop to a level below the upper end of said inlet and all the liquid remaining in said funnel means to drain into said container through said always open passageway and whereby said movable dispenser means and said integral funnel means of said first unit can rectilinearly move between its filling and removal positions without disengaging said first mating and sealing attachment means from its connection with said container inlet.