SERPENT RURAL SPORTS LLC
SERPENT RURAL SPORTS LLC Patent applications | ||
Patent application number | Title | Published |
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20150354916 | ELASTIC PROJECTILE PROPULSION SYSTEMS AND METHODS - An elastic projectile propulsion system deploys a plurality of springs that bias a common launching cord via a plurality of block and tackle pulleys. Each sheave of the pulley is coupled to the moveable end of a spring such that the force of each spring contributes to the energy imparted to a projectile by the launching cord without adding significant friction or inertial resistance. | 12-10-2015 |