Stopper system for vessel orifice
AssigneePrometron Technics Corp.
InventorShuji Tada
Life of this patent
Estimating the term…
Abstract
The combination of a vessel and a stopper assembly. The vessel has a wall defining a storage space for a supply of a flowable material and an orifice on the wall communicating through the body from the storage space to externally of the storage space. The stopper assembly selectively blocks the orifice. The stopper assembly has a frame, a stopper element with a blocking surface on the frame that is movable relative to the vessel between i) a closed position wherein the blocking surface substantially blocks the orifice and ii) an open position, and a repositioning mechanism for moving the stopper element relative to the vessel with the stopper element remaining in the closed position to thereby avoid fixing of the stopper element to the vessel.
Claims22
In combination:
- a) a vessel comprising a wall defining a storage space for a supply of a flowable material and an orifice on the wall communicating from the storage space through the body to externally of the storage space;
- and
- b) a stopper assembly for selectively blocking the orifice, said stopper assembly comprising:
- a frame;
- a stopper element with a blocking surface on the frame that is movable relative to the vessel between i) a closed position wherein the blocking surface substantially blocks the orifice and ii) an open position;
- and
- a repositioning mechanism for moving the stopper element relative to the vessel with the stopper element remaining in the closed position to thereby avoid fixing of the stopper element to the vessel.
A stopper assembly for an orifice on a vessel, said stopper assembly comprising:
- a frame;
- a stopper element with a blocking surface on the frame that is movable relative to the frame between i) a closed position wherein the blocking surface is situated to block an orifice on a vessel and ii) an open position wherein the blocking surface is retracted from the first position;
- and
- a repositioning mechanism for moving the stopper element relative to the frame with the stopper element remaining in the closed position to thereby avoid fixing of the stopper element to a vessel.
Dependencies are inferred from the claim text.