发明授权
US5417196A Automatic ball projection machine 失效
自动投球机

Automatic ball projection machine
摘要:
An automatic ball projection machine comprising a housing section that encloses a receiving section, a chute section, an ejection section, and a power section, while supporting a catching section, wherein a plurality of balls are loaded into the housing section through an inlet aperture, delayed in the receiving section, engaged and propelled by the ejection section, and adjustably directed out the chute section through an outlet aperture at a force sufficient for hitting or catching. Balls are thrown back at the apparatus into the catching section, which entraps and guides the balls into the inlet aperture for recycling.
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