ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,846, issued on Sept. 8, was assigned to Metro Marine LLC (Englewood, N.J.).
"Sealing a lighting fixture with dry gas" was invented by Daniel Deutsch (New York) and Michael Vincent Fedele (Englewood, N.J.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An underwater light fixture and a method for making the underwater light fixture are provided. The method includes assembling a light fixture in a housing, leaving a fastener out of the light fixture, wherein an opening for the fastener fluidically couples to open volume in the housing. The housing is placed in a vacuum chamber, and a vacuum is pulled on the vacuum chamber to remove air from the open vo...