Patent ID: 6871381
Filing Date: 2005-03-29
Classification: E05F,E05Y,Y10T

Abstract:
1. An adjustable door closure for varying the rate of speed at which an associated door may close comprising: a cylinder, a piston reciprocally disposed within said cylinder, a piston rod having one end thereof connected to said piston whereby said piston rod is rendered longitudinally adjustable relative to said piston, said piston rod having its other end extended beyond one end of said cylinder, a compression spring disposed between said piston and said one end of said cylinder for normally biasing said piston toward a door closing position, means formed on said one end of said piston rod defining at least one adjustable passageway through said piston, a coupler means connected to said other end of said piston rod whereby said piston rod is rendered rotatable relative to said piston and said coupling means to effect the adjustment of the adjustable passageways through said piston.