Patents Assigned to Luthi Machinery & Engineering Co., Inc.
  • Patent number: 6099884
    Abstract: A process for precooking fish for removal of skin and bones prior to canning. The precooking process includes the steps of enclosing fish in a pressure vessel, heating the fish under pressure by saturated steam with a temperature of above 214.degree. F. to 270.degree. F. until the heat within the fish is sufficient to enable the backbone temperature to reach about 135.degree. F. with equilibration, removing the fish from the pressure vessel with a backbone temperature of 85.degree. F. and equilibrating the heated fish outside of the pressure vessel until the temperature of the backbones of the fish reach about 135.degree. F.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: August 8, 2000
    Assignee: Luthi Machinery & Engineering Co., Inc.
    Inventor: Ben L. Manfre
  • Patent number: 5887414
    Abstract: A fish-canning machine having two adjacent parallel rotary turrets each having fish-receiving forming pockets in the periphery thereof. The turrets are positioned to align two of the pockets with each other to form a single combined pocket which is then filled with fish from a corresponding large size feed chute of increasing cross-sectional area. The fish in the pockets is severed between the turrets and the turrets are rotated by different amounts to move the filled pockets laterally out of alignment with each other. The fish in both filled pockets is formed into the shape of a can and ejected endwise from the pockets into two separate cans. Turret shoes and forming shoes are associated with the turrets which extend beyond the turret plate widths to define, with the immediately adjacent plate inserts, the forming pockets. The width of the shoes employed may easily be altered depending on the desired thickness of the pack.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: March 30, 1999
    Assignee: Luthi Machinery & Engineering Co., Inc.
    Inventors: Edward J. Rowley, Jack Gorby
  • Patent number: 5887413
    Abstract: A fish-canning machine having two adjacent parallel rotary turrets each having fish-receiving forming pockets in the periphery thereof. The turrets are positioned to align two of the pockets with each other to form a single combined pocket which is then filled with fish from a corresponding large size feed chute of increasing cross-sectional area. The fish in the pockets is severed between the turrets and the turrets are rotated by different amounts to move the filled pockets laterally out of alignment with each other. The fish in both filled pockets is formed into the shape of a can and ejected endwise from the pockets into two separate cans. Spaces between the turrets and the housing provide for plate inserts and variation in the thickness of the forming elements so as to accommodate a variety of pack sizes and characteristics. The plate inserts include studs which extend through the housing with attachment spacers to engage attachment bars.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: March 30, 1999
    Assignee: Luthi Machinery & Engineering Co., Inc.
    Inventors: Edward J. Rowley, Jack Gorby
  • Patent number: 5653092
    Abstract: This invention relates to a machine to ensure that the amount of food product in a can meets the volume and weight standards without altering the natural characteristics of the product necessary for the market. The invention encompasses a combination of scrapers or sweepers and a primary pocket turret assembly and including a rotating cylinder body having sweeper blades positioned thereon in a helical form so the amount of food product in associated cavities in the rotating table meets weight, volume, and product appearance standards. In addition, pneumatic cylinders and cam-driven cylinders from below compress the product in the device prior to the final leveling accomplished by the rotating helical sweepers.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: August 5, 1997
    Assignee: Luthi Machinery & Engineering Co., Inc.
    Inventors: Jack Gorby, Edward J. Rowley