Patent ID: 6918332
Filing Date: 2005-07-19
Classification: B26D,B26F,Y10S,Y10T

Abstract:
1. A hole punching device for selectively punching holes through a paper material, said device comprising: an elongate base having a first end, a second end, a first side edge, a second side edge, a top side and a bottom side, a compartment being positioned within said base, said top side having an aperture extending therethrough and into said compartment, said aperture being positioned generally adjacent to said first end, said base having a length from said first end to said second end greater than nine inches; an engaging arm being elongated and having rearward end and a forward end, said rearward end being pivotally coupled to said top side of said base and positioned adjacent to said second end such that said engaging arm extends over said aperture; a piston extending through and being movably mounted in said engaging arm, said piston including an upper portion extending upwardly from said engaging arm and a lower portion extending downwardly from said engaging arm, said piston being positioned such that said piston may selectively extend through said aperture; a first biasing member being coupled to said piston for biasing said lower portion upwardly away from said base; a second biasing member being coupled to said engaging arm for biasing said forward end of said engaging arm upwardly away from said base; and an actuator for selectively moving said lower portion of said piston downward and into said aperture being attached to said engaging arm, said actuator comprising a lever pivotally coupled to said engaging arm and extending over said upper portion of said piston, said lever having a free end extending generally toward said rearward end of said engaging arm, wherein said lower portion is moved into said aperture when said free end is selectively moved toward an upper surface of the engaging arm.