Invention Grant
US08496483B1 Educational toy with interchangeable spheres 失效
具有可互换球体的教育玩具

  • Patent Title: Educational toy with interchangeable spheres
  • Patent Title (中): 具有可互换球体的教育玩具
  • Application No.: US13004669
    Application Date: 2011-01-11
  • Publication No.: US08496483B1
    Publication Date: 2013-07-30
  • Inventor: George M. Walters
  • Applicant: George M. Walters
  • Agent Michael I. Kroll
  • Main IPC: G09B1/00
  • IPC: G09B1/00
Educational toy with interchangeable spheres
Abstract:
An educational toy with interchangeable spheres for teaching the user to produce words, progressions, mathematics, patterns and other educational arrangements and sequences comprising a shaft with a permanently affixed stationary sphere on one end and a removable threaded sphere on the other. A plurality of educational balls having various graphics and horizontal throughbores that are slid onto the shaft in a user selected order when the threaded sphere is removed and retained thereon when it is replaced.
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