ALEXANDRIA, Va., Oct. 20 -- Plas-Pak Industries, Norwich, Connecticut, has been assigned a patent (9,469,061) developed by Charles M. Frey, Groton, Connecticut, for a "one-piece ventable piston for a dispensing apparatus, a dispensing apparatus with same, and method of making same."

The patent application was filed on Jan. 27, 2014 (14/164,854). The full-text of the patent can be found at http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2 . . .