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Inflated sports ball

  • US 5,181,717 A
  • Filed: 03/02/1990
  • Issued: 01/26/1993
  • Est. Priority Date: 03/03/1989
  • Status: Expired due to Term
First Claim
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1. An inflated bladder-type sports ball, comprising:

  • wall means defining an inflated bladder having an external surface;

    a cover supported on said external surface and enclosing said inflated bladder;

    said cover comprising a layer of synthetic plastic material having a substantially uniform thickness, said layer including an inner core portion which is foamed, and an external skin, integrally provided on said core portion, said skin being substantially non-foamed;

    said synthetic plastic material of core portion and skin being made of polyurethane or a copolymer of polyurethane and polyurea;

    said layer as a whole being between 1.5 and 5 mm thick, said core portion being between 1.0 and 3.0 mm thick and said skin being between 0.5 and 2 mm thick.

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