ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,391, issued on Jan. 13, was assigned to BENNAMANN SERVICES LTD (Newquay, Great Britain).
"Vacuum sealing device and method" was invented by Thomas William Bradshaw (Nr Wantage, Great Britain), Luke James Mann (Truro, Great Britain) and Duncan Stuart Glasby (Wadebridge, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and devices for sealing a storage vessel or other apparatus are provided. A piston moves from a first position to a second position within a body to compress a sealing element, such as a metallic ring. One or more attachment elements connect the piston to the body. A removable pipe can be used for pump-out."
The pat...