Sterilizing device for web shaped packaging material
Patent 3947249 Issued on March 30, 1976. Estimated Expiration Date: 
March 30, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 30, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2549059 2917883 3383831 3466841 3466850 3513627 3530641 3692468 3750367 3854874 InventorAssigneeApplicationNo. 461237 filed on 04/15/1974US Classes:422/300, Including rack, support or handling means53/167COMBINEDExaminersPrimary: Scovronek, JosephAssistant: Garris, Bradley Attorney, Agent or FirmForeign Application Priority Data1973-04-20 ITAbstractA sterilizing device for web shaped packaging material in which the length of travel of the web after sterilant has been applied is increased, prior to the drying operation, and the sterilant on the film is heated during this increased path in order to increase the activity of the sterilant and allow complete sterilization even at high speeds. This is accomplished by a heated metal cylinder and a chamber which surrounds the web between the cylinder and the drying operation, into which chamber is blown heated sterile air. | |
