Patents by Inventor Russell D. DiDonato

Russell D. DiDonato 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).

  • Continuous movement packaging machine
    Patent number: 3958394
    Abstract: A packaging machine for thermoforming plastic packages, filling them with the desired contents, and sealing them under vacuum or gas if desired, wherein a train of packages move through the machine in a horizontal path at substantially constant speed, the machine including reciprocating interacting package forming and sealing elements with support means acting simultaneously on the upper and lower sides of the train of packages as they move through the machine. In an alternate arrangement, lids may be applied to package portions preformed by separate apparatus.
    Type: Grant
    Filed: February 15, 1974
    Date of Patent: May 25, 1976
    Assignee: Mahaffy & Harder Engineering Company
    Inventors: Reid A. Mahaffy, James C. Kimbaris, Russell D. DiDonato