Patent ID: 7465392

Claim:
A weeder for a pond being used to remove weeds or dirt in water of said pond and comprising: a handle unit having a grasp for grasping of a hand and being provided thereon with a switch suiting manipulation of a finger used to control a set of power source equipment provided detachably on said grasp; a long pipe having an end in connecting with said grasp; an electric device provided on other end of said long pipe, and being provided with a housing having therein at least a motor, said motor being controlled by said switch; a knife/blade device connected with said electric device by means of a knife/blade housing, said knife/blade housing having a front chamber and a rear chamber in communication with each other; said front chamber being provided therein with a blade and having an exhaust channel to connect with a filtering tank by means of a pipe line extending out of its side wall; said rear chamber being provided therein with a rack for a knife; said blade and said knife both being linked with said motor and thus being rotated; and a sucking mouth piece unit communicated with said rear chamber of said knife/blade housing of said knife/blade device to cover said knife, and further having at least a sucking mouth piece; when said switch being turned on, said blade and said knife both being rotated; rotation of said blade renders said sucking mouth piece of said sucking mouth piece unit to generate sucking force to suck in weeds or dirt in water of said pond; said weeds or dirt sucked in being minced by said rotating knife, and is sent to said filtering tank through said exhaust channel.