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Marine propeller and hub assembly of plastic

  • US 4,930,987 A
  • Filed: 05/24/1989
  • Issued: 06/05/1990
  • Est. Priority Date: 05/24/1989
  • Status: Expired due to Term
First Claim
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1. A marine propeller and hub assembly comprising:

  • a hub portion including a plurality of extensions extending axially outwardly from a central section, said central section including a central bore formed therein, said hub portion including a plurality of re-entrant cavities surrounding said central portion and formed between adjacent extensions;

    a unitary blade and root portion configured to be slidably axially inserted into each of said re-entrant cavities, an axially extending exhaust passage formed in said root portion; and

    means for radially retaining said unitary blade and root portion within said re-entrant cavity.

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