Patents by Inventor John Haffield

John Haffield 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 and apparatus for packaging agricultural plant material
    Patent number: 5855107
    Abstract: A bale of cut silage 2 is fed into a sheath 8 of flexible packaging. Apparatus 1 comprises thermal sealing/cutting heads 14,15 and intermediate blades 20. Heads 14,15 seal a rear end 21 of package 22; blades 20 separate package 22 from the remainder of sheath 8; heads 14,15 provide a further sealed end 9 for sheath 8 ready to receive the next bale 2 to be packaged.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: January 5, 1999
    Inventor: John Haffield