Patent ID: 7584871

Claim:
A grease output device for an electrical grease gun comprising: a body having a holder; a seat connecting to the holder; two pipes mounted on a top end of the holder and parallel with each other, and each pipe having an outer opening and an inner opening; and two fastening boards mounted respectively on two sides of the seat; a double-cam member connecting to the body and having a driven unit mounted rotatably on the seat and having a bar connecting to the fastening board and having a key axially mounted on the bar, and a wheel assembly connecting to the bar and having a driven gear and two cams mounted respectively on two sides of the driven gear, wherein the cams are eccentrically mounted on the driven gear and misalign with each other; and a driving unit connecting to the driven unit and having two rings mounted respectively around the cams, and two pistol rods respectively connecting to the rings, and each pistol rod having a head formed in a first end of the pistol rod; and a foot formed in a second of the pistol rod and inserted into one of the pipes of the body via the inner opening in the pipe; and a driving member connecting to the body and having a motor connecting to the body; a planet gear assembly connecting to the motor; an axle connecting to the planet gear assembly; and a driving gear mounted securely on the axle and engaging with the driven gear.