Patent ID: 8011413

Claim:
A screen door system comprising: a. a screen dispenser having an interior chamber and an outer shell which houses a spring-loaded screen extension system, the spring-loaded screen extension system comprising a screen mesh that is operatively configured to extend from the screen dispenser, b. an upper laterally aligned bracketing component and a lower laterally aligned bracketing component positioned at upper and lower portions of the screen door system, respectively, c. a handle movably positioned between the upper laterally aligned bracketing component and the lower laterally aligned bracketing component, the handle having an interior chamber housing extending in a substantially vertical direction, d. a pulley system having a first pulley member and a second pulley member where the first and the second pulley members are operatively configured to change in distance therebetween to be in closer proximity to one another in a substantially vertical direction within the interior chamber housing where a force is required for positioning the first and the second pulley members together, e. a balancing cord having a first end and a second end and a medial region, the medial region being adapted to extend around the first pulley member and the second pulley member where repositioning the handle of the screen door system to a closed screen configuration repositions the first pulley member and the second pulley member to a location closer to one another within the interior chamber of the screen dispenser and repositioning the handle of the screen door system to an open screen configuration, wherein the first pulley member is attached to a biasing member and the biasing member comprises a constant wind-up spool having a non-linear diameter where in the last portion of extension of the wind-up spool, the diameter substantially decreases to increase the amount of force upon the first pulley member.