Patent ID: 7273548

Claim:
A fluid filter for separating a crude oil from a water, comprising: at least a crude oil filtering arrangement comprising a floating wing adapted for floating on said water, and having at least a crude oil outlet formed on said floating wing; a container body, which is extended from said floating wing, having a crude oil collecting cavity communicating with said crude oil outlet, wherein said crude oil outlet is formed at a peak of said crude oil collecting cavity, said container body has an inner receiving cavity communicated with said crude oil collecting cavity via said crude oil outlet; and a fluid guider extended from said container body to a position underneath said container body to form a guiding channel, having a fluid entrance, between said fluid guider and a bottom side of said container body to communicate with said inner receiving cavity, wherein said fluid guider further has a water exit communicating with said guiding channel for allowing said water exiting from said guiding channel to outside so as to balance a flow of said crude oil within said guiding channel, in such a manner that said fluid guider is arranged for said water with said crude oil entering into said guiding channel at said fluid entrance, said water with said crude oil is guided to flow into said inner receiving cavity from said fluid entrance through said fluid guiding channel such that when said container body is disposed with an elevation until said crude oil outlet is slightly positioned below a surface level of said crude oil, said crude oil is allowed to flow into said crude oil collecting cavity through said crude oil outlet by gravity so as to separate said crude oil from said water.