Patents by Inventor Hubert F. Stollenwerk

Hubert F. Stollenwerk 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).

  • Patent number: 4214519
    Abstract: Fruit press comprising a substantially rigid enclosure or cage having two parallel, vertical open ends and a closeable top for introduction of fruit pulp or other material to be deliquified, and including two platens, one abutting each of the two open ends of said enclosure, one of said platens adapted to substantially tightly and slidably seat in said enclosure and compress material to be deliquified against the other platen to form a cake, said other platen then being indexable away from said enclosure while the first platen indexes slightly beyond the distal end of said enclosure to displace said press cake out of said enclosure. Liquid is expressed from said press cake by drainage through suitable channels in the faces of one or both of the platens and/or the sides and bottom of the enclosure.
    Type: Grant
    Filed: February 1, 1979
    Date of Patent: July 29, 1980
    Inventors: Hubert C. Stollenwerk, Hubert F. Stollenwerk
  • Patent number: 4033253
    Abstract: Fruit press comprising an endless conveyor belt for transporting the fruit or other material to be dewatered or dejuiced, the belt being driven in a horizontal direction, one or more hydraulic platens for compressing the fruit or other liquid-containing compressable material for dejuicing, dewatering, or deoiling the same, as the case may be, movable, permeable sides associated with each platen to contain the sides of the cake being pressed by the platen and vertically movable gates upstream and downstream of each platen to contain the cake being pressed.
    Type: Grant
    Filed: August 27, 1975
    Date of Patent: July 5, 1977
    Inventors: Hubert C. Stollenwerk, Hubert F. Stollenwerk