Patents by Inventor Philip Atfield

Philip Atfield 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).

  • Winch having a multiple diameter drum
    Patent number: 6019353
    Abstract: A winch has two portions of respectively different diameters. A ridge between them permits line to be flipped from the larger diameter portion to the other. Surface treatments of the two portions may be different, with that on the larger diameter portion being less aggressive than that on the smaller.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: February 1, 2000
    Assignee: Lewmar Marine Limited
    Inventor: Philip Atfield