ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,203, issued on Feb. 3, was assigned to Dyson Technology Ltd. (Malmesbury, Great Britain).
"Pump assembly" was invented by Christopher Graham Vincent (Gloucester, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pump assembly for a dental cleaning appliance includes a positive displacement pump including a fluid chamber and a fluid displacement member which is moveable in a linear direction relative to the fluid chamber, and a drive for actuating the pump to draw fluid into the fluid chamber through a fluid inlet. An energy storage device converts kinetic energy generated during actuation of the pump by the drive into potential energy, a...