Electronic pitching aid
First Claim
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2. AN ELECTRONIC PITCHING AID WHICH COMPRISES:
- PHOTOELECTRIC MEANS FOR GENERATING A PLANAR MATRIX OF LIGHT MEANS AND PROVIDING A SIGNAL INDICATING THE LOCATION IN WHICH AN OBJECT PASSES HOME PLATE, SAID SIGNAL HAVING A DURATION PROPORTIONAL TO THE TIME SAID OBJECT INTERRUPTS SAID BEAMS, MEANS FOR PASSING ONLY THOSE OF SAID SIGNALS HAVING LESS THAN A PRESELECTED DURATION, AND MEANS FOR SWITCHING ON A LIGHT INDICATING SAID LOCATION IN RESPONSE TO A PASSED SIGNAL.
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2 Claims
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2. AN ELECTRONIC PITCHING AID WHICH COMPRISES:
- PHOTOELECTRIC MEANS FOR GENERATING A PLANAR MATRIX OF LIGHT MEANS AND PROVIDING A SIGNAL INDICATING THE LOCATION IN WHICH AN OBJECT PASSES HOME PLATE, SAID SIGNAL HAVING A DURATION PROPORTIONAL TO THE TIME SAID OBJECT INTERRUPTS SAID BEAMS, MEANS FOR PASSING ONLY THOSE OF SAID SIGNALS HAVING LESS THAN A PRESELECTED DURATION, AND MEANS FOR SWITCHING ON A LIGHT INDICATING SAID LOCATION IN RESPONSE TO A PASSED SIGNAL.
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Current AssigneePendleton S. Tompkins, Ronald L. Ives, Stuart W. Grinnell
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Original AssigneePendleton S. Tompkins, Ronald L. Ives, Stuart W. Grinnell
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InventorsTompkins, Pendleton S., Grinnell, Stuart W., Ives, Ronald L.
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Application NumberUS04/217,412Time in Patent Office1,251 DaysField of SearchUS Class Current473/456CPC Class CodesA63B 71/0605 Decision makers and devices...
