Patents by Inventor Yan-Min Guo

Yan-Min Guo 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).

  • Boat propeller with adjustable blades for adjusting the pitch thereof
    Patent number: 7357686
    Abstract: A boat propeller comprises a hub formed of a first cylindrical member and a second cylindrical member detachably joined together. The second cylindrical member comprises a plurality of insertion cavities formed in the second cylindrical member, an end of each of the insertion cavities having a plurality of receptacle members. The boat propeller also comprises a plurality of blades equal in number to the number of insertion cavities. Each blade comprises a blade piece portion and an adjustment member, a tip of the adjustment member comprising a positioning member such that the positioning member makes contact with at least one of the receptacle members when the adjustment member is inserted into the corresponding insertion cavity. The positioning member of the adjustment member is selectively matched with one or more of the receptacle members for adjusting a pitch of the blades.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: April 15, 2008
    Inventors: Huei-Jeng Lin, Chin-I Liao, Yan-Min Guo
  • Boat propeller with adjustable blades for adjusting the pitch thereof
    Publication number: 20060292007
    Abstract: A boat propeller comprises a hub formed of a first cylindrical member and a second cylindrical member detachably joined together. The second cylindrical member comprises a plurality of insertion cavities formed in the second cylindrical member, an end of each of the insertion cavities having a plurality of receptacle members. The boat propeller also comprises a plurality of blades equal in number to the number of insertion cavities. Each blade comprises a blade piece portion and an adjustment member, a tip of the adjustment member comprising a positioning member such that the positioning member makes contact with at least one of the receptacle members when the adjustment member is inserted into the corresponding insertion cavity. The positioning member of the adjustment member is selectively matched with one or more of the receptacle members for adjusting a pitch of the blades.
    Type: Application
    Filed: June 22, 2005
    Publication date: December 28, 2006
    Inventors: Huei-Jeng Lin, Chin-I Liao, Yan-Min Guo