Patent ID: 7503780

Claim:
A USB flash disk with an upper cover comprising: a USB flash disk having a housing, said housing having therein a printed circuit board, said printed circuit board having thereon a flash memory and a Universal serial bus connector extending out of a top surface of said housing; said housing is formed on at least one of its lateral sides a cut indented inwardly; an outer housing slipped over said housing and covering said cut with one lateral side of it, said lateral side having therein an elastic sheet at a position in corresponding with said cut; a bottom end of said elastic sheet being fixed on said lateral side; while an upper end of said elastic sheet being provided with a protruding hook that protrudes out of a top edge of said lateral side, and said elastic sheet having a pressing portion protruding out of an outer surface of said lateral side; said protruding hook being shaken and displaced in said cut when said pressing portion being pressed; and an upper cover put on an upper side of said housing of said USB flash disk to cover said Universal serial bus connector, and having an engaging hole on one of its lateral sides being in opposition to said cut; said engaging hole being hooked by said protruding hook when said pressing portion being not pressed, and being released from hooking when said pressing portion being pressed to remove said protruding hook from engaging said engaging hole, so as to allow separation of said upper cover from said housing of said USB flash disk.