Patents by Inventor Lyndon F. Frazerhurst

Lyndon F. Frazerhurst 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).

  • Method of and means for liquid extraction from gall bladders
    Patent number: 4020993
    Abstract: A machine and method for collecting gall from animal bladders is provided. The machine includes contra-rotating rollers which cut and squeeze gall bladders fed onto the rollers. A perforated drum receives the gall and cut bladders issuing from the rollers and separates the gall from the cut bladders. A high yield of gall is attained.
    Type: Grant
    Filed: May 20, 1975
    Date of Patent: May 3, 1977
    Assignee: New Zealand Inventions Development Authority
    Inventors: Lyndon F. Frazerhurst, Anthony J. Robinson, Peter G. Macfarlane