Patent ID: 7506567

Claim:
A universal window blind trimmer for trimming a window blind having a head rail, a bottom rail and a plurality of slats, comprising, a main mounting frame having a rectangular die holder plate extending upwardly in a perpendicular manner along an edge portion of a support base plate, said die holder plate having a front surface with a rectangular recessed portion and a rectangular raised platform formed therein, said recessed portion and said raised platform being separated by a step, a rectangular slats receiving opening formed at a central area of said recessed portion, a double action cam arm pivotally mounted on said raised platform, an elongated handle coupled to said double action cam arm and operative for pivoting said double action cam arm, an interchangeable die assembly removably mounted in said rectangular recessed portion of said die holder plate, said die assembly including an inner plate and an outer slider plate and said outer slider plate being slidable relative said inner plate, said slider plate having an extended cam portion juxtaposed to said double action cam arm, a first rectangular opening formed in a central area of said inner plate and being in registry with said rectangular slats receiving opening of said die holder plate, a head rail receiving opening formed in said inner plate and having a shape and size equal to cross sectional shape and size of head rail, and a bottom rail receiving opening formed in said inner plate and having a shape and size equal to cross sectional shape and size of said bottom rail, a second rectangular opening formed in a central area of said outer slider plate and being normally in registry with said first rectangular opening of said inner plate, an associated head rail receiving opening and an associated bottom rail receiving opening formed in said outer slider plate, said associated head rail receiving opening and said associated bottom rail receiving opening of said outer slider plate having a shape and size equal to said head rail receiving opening and said bottom rail receiving opening respectively of said inner plate and being normally in registry therewith, a cutting blade located at a vertical edge of said second rectangular opening of said outer slider plate.