Method and device for cutting a multilayer assembly composed of a plurality of thin films and comprising a thin film electrochemical generator or a component part thereof
October 24, 2011. 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 3917769 Method of and means for cutting hose for high pressure hydraulic systems Method and apparatus for producing safety belts with reduced kerfs Method for machining a workpiece with a beam of radiant energy assisted by a chemically-reactive gas Laser cutting of composite materials Apparatus for cutting multiple layers of fabric Method and apparatus for slitting metal strips Method of assembling components of an electrochemical generator using thin films of lithium Patent #: 4897917 InventorsAssigneeApplicationNo. 768551 filed on 10/24/1991US Classes:219/121.72, Methods219/121.84With fluid supplyExaminersPrimary: Albritton, C. L.Attorney, Agent or FirmForeign Patent References
International ClassB23K 026/00Foreign Application Priority Data1990-01-30 FRAbstractAt least one laser beam is focused on one side of an assembly to be cut at a point on the side which is part of the cutting profile and which is called the point of impact of the beam on side side, in order to cause at that point a disintegration of the material of the assembly. The laser beam is moved in relation to the assembly so that the impact point describes a trajectory which corresponds to the desired cutting profile, while maintaining a controlled atmosphere in the area around the impact point. Uses particularly include cutting solid polymer electrolyte lithium thin film electrochemical generators, or cutting precursors of such generators.Other References
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