Patent ID: 7819145

Claim:
A dado guide adapted for providing a dado cut in a board, and wherein said dado guide is adapted for use with a woodworking fence, comprising: (a) a first assembly that is adapted to cooperate with the fence sufficient to permit said first assembly to slide in a first direction that is parallel with respect to a longitudinal length of the fence or to slide in a second direction that is opposite with respect to said first direction; (b) a pair of rods that are disposed in a parallel, spaced apart relationship with respect to each other and wherein each of said pair of rods includes a longitudinal axis that is perpendicular with respect to a longitudinal axis of the fence when an inside planar surface of a lip of said dado guide is disposed adjacent to a first side of the fence and a planar surface of a first rail is disposed adjacent to an opposite second side of the fence, and wherein each of said pair of rods is secured at a first end thereof to said first rail, and wherein said first assembly is coupled to the fence and is able to be urged in said first direction or in said second direction; (c) a second assembly that includes a pair of spaced-apart holes there-through and wherein said pair of rods are adapted to pass through said pair of spaced apart holes; (d) means for securing said second assembly away from said first assembly, wherein said second assembly is urged in said first direction or in said second direction in response to a movement by said first assembly an amount that is equal to said movement by said first assembly in said first direction or in said second direction, and (e) wherein a center opening is provided between each of said pair of rods and between said first assembly and said second assembly, and wherein a length of said center opening that is parallel to said longitudinal axis of said pair of rods is proportional to a width of the dado cut that said dado guide is adapted to cut in the board when the board is disposed under said center opening of said dado guide.