Air/oxygen cell
Patent 4557983 Issued on December 10, 1985. Estimated Expiration Date: 
April 20, 2004. 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 20, 2004. 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 3897265 Galvanic primary element with air electrode Metal/oxygen cells and method for optimizing the active life properties thereof Seal for metal-air batteries Patent #: 4343869 InventorAssigneeApplicationNo. 06/602593 filed on 04/20/1984US Classes:429/27, Active material electrode-type cell or subcombination thereof429/162, Flat-type unit cell and specific unit cell components429/185, Having seal feature429/35Having sealing featureExaminersPrimary: Skapars, AnthonyAttorney, Agent or FirmInternational ClassesH01M 12/00 (20060101)H01M 12/06 (20060101) Foreign Application Priority Data1983-04-22 DEAbstractIn an air/oxygen button cell the multilayer air electrode is reliably held in place between an inwardly extending rib which is formed in the bottom of the cathode cup and a sealing base which is associated with the cup forming the negative electrode. The sealing base acts like a domed spring under tension because of a sloping portion provided in its bottom in the region above the rib. The air electrode remains flat and is secure against lateral displacements.Field of SearchActive material electrode-type cell or subcombination thereofIn end-to-end contact, e.g., stacked button-type cell, etc. Flat-type unit cell and specific unit cell components Cylindrical unit cell type, e.g., cup container electrode, tubular electrode, casing, etc. Mechanical clamping pressure seal Having seal material Having seal feature Housing member, seal, spacer or fluid distributing or directing means Having sealing feature |
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