Method and apparatus for forming an isotropic self-adhering elastomeric ribbon
Patent 4696779 Issued on September 29, 1987. Estimated Expiration Date: 
March 17, 2006. 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 17, 2006. 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. 06/840263 filed on 03/17/1986US Classes:264/211.13, Contact of extrudate with fluid other than ambient air264/211.18, Plural treatment stages or zones264/213, Utilizing surface parting, anti-stick or release agent264/237, Cooling264/348, To cool425/325, Shaping orifice and either a downstream preform reshaping means or vulcanizing means including conforming preform support425/377, Including product handling means425/378.1, Including heating or cooling means425/71INCLUDING MEANS ADVANCING CONTINUOUS LENGTH WORK THROUGH DOWNSTREAM LIQUID BATH OR SHOWER MEANSExaminersPrimary: Thurlow, JefferyAttorney, Agent or FirmInternational ClassB29C 47/88 (20060101)AbstractApparatus and method for extruding and cooling self-adhering elastomeric materials to obtain substantial uniform consistency. This is accomplished by bisurfacially exposing the material to cooling while supporting the material as a foraminous means.Field of SearchCoolingTo cool Utilizing release agent in molding material Utilizing surface parting, anti-stick or release agent Utilizing added agent (e.g., flux, plasticizer, dispersing agent, etc.) By calendering Into a liquid bath Filaments Liquid of bath is in motion Processing or treatment after extrusion (e.g., support, guide, etc.) Temperature specified (other than ambient) Contact of extrudate with fluid other than ambient air | |
