Patent ID: 6665947
Filing Date: 2003-12-23
Classification: B23Q,Y10T

Abstract:
A square allowing a user to mark and cut a planar object wherein said planar object has a first edge, and a second edge approximately parallel to said first edge, comprising:a. a flat panel, having at least one straight edge guide; b. a fixed stop, descending downward from said flat panel and formed in a shape to bear against said first edge when said flat panel is placed on said planar object so that said edge guide is perpendicular to said first edge; c. a clamp rod oriented parallel to said flat panel and perpendicular to said fixed stop; d. a clamp body, slidably attached to said clamp rod; e. unidirectional locking means, allowing said user to slide said clamp body toward said fixed stop but not away from said fixed stop; f. a release lever, mounted on said clamp body which, when actuated, allows said user to slide said clamp body away from said fixed stop; and e. clamping means, capable of forcing said clamp body toward said fixed stop so as to clamp said square securely to said planar object while maintaining said edge guide in an orientation which is perpendicular to said first edge.