Patents by Inventor Eric E. Cozens

Eric E. Cozens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Crescent gear pump with hypo cycloidal and epi cycloidal tooth shapes
    Patent number: 5163826
    Abstract: A crescent pump gear including: a housing having a chamber communicating with an intake port and a discharge port; a shaft journaled for rotation within said chamber; an externally toothed inner gear mounted centrally on said shaft about a first axis; an internally toothed annular gear eccentrically mounted for rotational engagement with said inner gear about a second axis; a crescent contacting a portion of said inner gear has a dual cycloidal tooth profile generated about a first generating circle and said outer gear has a dual cycloidal tooth profile generated about a second generating circle.
    Type: Grant
    Filed: October 23, 1990
    Date of Patent: November 17, 1992
    Inventor: Eric E. Cozens