ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,932, issued on May 13, was assigned to TETRA LAVAL HOLDINGS & FINANCE S.A. (Pully, Switzerland).
"Valve for providing pulses of air" was invented by Arash Saeidihaghi (Sodra Sandby, Sweden), Erik Johansson (Lund, Sweden) and Markus Florentzson (Staffanstorp, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A valve for providing pulses of aseptic air to a web of packaging material is provided. The valve comprises a rotatable valve shaft having an inlet portion with a circular cross-section, wherein the inlet portion is provided with a radial slot being connected to an axial cavity of the valve shaft. The valve further comprises a valve member co...