Apparatus for filling and sealing liquid-phased extruded containers and method
Patent 5471821 Issued on December 5, 1995. Estimated Expiration Date: 
September 2, 2014. 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.
September 2, 2014. 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 2896250 3336425 3357046 3827214 Method of manufacture of hypodermic syringe Cannular feeding apparatus Patent #: 4620410 InventorApplicationNo. 300466 filed on 09/02/1994US Classes:53/452, Forming or partial forming a receptacle and subsequent filling53/440, Heating or cooling53/561Molding or extruding a containerExaminersPrimary: Coan, James F.International ClassesB65B 043/00B65B 061/24 AbstractAn apparatus and method for filling liquid-phased extruded containers comprises injecting the extruded material into a die head forming a tubular shape. The die head is hollow, or bored, from its back end to its front where the extruded material egresses to form the extrudate (pre-container) tube shape. A means for introducing a separable insert through the die head bore permits the insert to be encased within the tube while the thermoplastic material is still in its liquid or molten phase. Pinch rollers seal the tube at ends opposite that of the insert while avoiding the insert, while the line of sealed containers is pulled by gear rollers through a water cooling bath. A die punch stamp cuts the pinched, or sealed, sections of the containers separating them into individual, filled, singular units.Field of SearchForming or partial forming a receptacle and subsequent fillingForming a pocket or depression in cover material by applying heat or pressure (e.g., stretch forming) Heating or cooling Enclosing contents within progressively formed web means Molding or extruding a container Forming a pocket, depression, or hollow compartment by application of heat or pressure (e.g., stretch forming) APPARATUS FOR FORMING OR PARTIALLY FORMING RECEPTACLE AND SUBSEQUENTLY FILLING | |
