ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,723, issued on July 15, was assigned to Hoerbiger Wien GmbH (Vienna).
"Sealing device for a piston rod of a reciprocating compressor" was invented by Martin Lagler (Vienna), Andreas Kaufmann (Vienna) and Guido Pratelli (Vienna).
According to the abstract* released by the U.S. Patent & Trademark Office: "In order to provide a sealing device (15) for sealing a piston rod (8) of a reciprocating compressor (1) at compressor standstill, which enhances the safety of operation, the sealing device (15) comprises a number of first packing retainers (18), each retainer including a retaining opening (18a) in which a first packing ring (19) is arranged, a second packing retainer (20), includ...