Patents Assigned to OPX Corporation
  • Apparatus and method for opening and sorting envelopes
    Patent number: 9527114
    Abstract: An apparatus is provided for processing mail by severing an edge of each envelope in a stack of mail. The apparatus includes an input bin for receiving a stack of mail. A feeder feeds the bottom envelope from the input bin to a transport that conveys the envelope along an envelope path. A cutter positioned along the envelope path severs one edge of the envelopes. A detector detects a characteristic of the envelope and a sorter sorts the envelope in response to the detected characteristic.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: December 27, 2016
    Assignee: OPX CORPORATION
    Inventors: David R Helmlinger, Robert DeWitt
  • Pressure equalization port
    Patent number: 6374620
    Abstract: Methods and apparatus for pressure equalization port devices, which are particularly suited for preventing vacuum seals in ultra low freezers are disclosed. An application of the pressure equalization port method and apparatus to ultra low freezers is also disclosed.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: April 23, 2002
    Assignee: OPX Corporation
    Inventor: Ralph Markey