Die with insert and its use
Patent 4293517 Issued on October 6, 1981. Estimated Expiration Date: 
April 14, 2000. 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.
April 14, 2000. 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 ReferencesInventorAssigneeApplicationNo. 06/139796 filed on 04/14/1980US Classes:264/211.13, Contact of extrudate with fluid other than ambient air264/177.16, Die configuration (other than fixed orifice shape)264/216, Rubber or synthetic resin containing liquid425/381, Movable orifice or movable mounted inner mandrel within orifice425/382.4, Including restriction upstream of shaping orifice and downstream of primary pressurizing means425/461, MEANS PROVIDING A SHAPING ORIFICE425/466, Adjustable shaping orifice or shape imparting insert member (e.g., core, etc.)425/467Core, pin or insert memberExaminersPrimary: Thurlow, JefferyInternational ClassesB29C 47/16 (20060101)B29C 47/70 (20060101) B29C 47/58 (20060101) AbstractA die and a process are provided for extruding thermoplastic film with a controlled bead thickness. The die includes inserts at the ends of the die to alter flow of molten thermoplastic material. | |
