Training fin device for swimming

  • US 5,108,328 A
  • Filed: 05/17/1990
  • Issued: 04/28/1992
  • Est. Priority Date: 12/30/1988
  • Status: Expired due to Term
First Claim
Patent Images

1. A training fin for swimming, comprising:

  • a foot section having an enclosure means for retaining a user'"'"'s foot to the fin, the foot section having a predetermined surface area defined by that portion of the foot section which directly covers the foot and specifically excluding any overhang; and

    a tail section attached to the foot section, the tail section surface area being between 0.25 and 0.8 times the surface area of the foot section.

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