Patent attributes
One embodiment of a football throwing machine using an axially aligned compression spring for propulsion and a latching mechanism for retaining the spring in its compressed state. A spiral shaped actuator mechanism is used to compress the spring with consistent torque throughout the compression stroke. The spring is released from its compressed state using an efficient triggering mechanism. A timing mechanism allows a delay so the user can position for the catch. The football is held by axially misaligned wheels on one end and a rotating cup on the other. As the spring pushes the ball between the wheels while being ejected from the apparatus, the wheel misalignment causes the helical spinning effect on the football while the cup holding the other end of the football spins freely.
