Back to results
US 4,674,547 AGranted
Container filling apparatus with adjustable pressure sealing means
OwnerAndriano Simonazziinventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerAndriano Simonazziinventor
Estimating the term…
The container filling device includes a first piston slidably mounted within a first cylinder for raising and lowering a nozzle into and out of operative engagement with a container to be filled. A sealing ring is mounted on the lower end of the first piston for sealing engagement with the rim of a container to be filled and a passage is provided for allowing gas pressure within the container to enter the bottom of the first cylinder to provide a pressure differential on the first piston depending upon the diameter of the container. A second piston is slidably mounted for vertical reciprocating movement within a second cylinder and is operatively connected to the first piston. First and second pneumatic pressure supplies are connected to the second cylinder above and below the second piston for regulating the pressure applied between the sealing ring on the first piston and the rim of a container being filled.
A container filling device comprising a table supporting a container at a filling station, reservoir means disposed above said table, nozzle means movably associated with said reservoir means for filling said container, a first cylinder surrounding said nozzle means and sealingly supported by said reservoir means, a piston mounted for reciprocating movement within said cylinder and connected to said nozzle means for raising and lowering said nozzle means, sealing means mounted on the lower end of said piston for engagement with a rim on said container, a passage means between said nozzle means and said piston for communicating the interior of the container being filled with the interior of said cylinder above said piston and pneumatic means operatively connected to said piston for regulating an applied force between said sealing means and the rim of a container being filled.
Dependencies are inferred from the claim text.