Spirally-bound flange seal with separate soft layers
Patent 5913522 Issued on June 22, 1999. Estimated Expiration Date: 
April 14, 2017. 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, 2017. 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 ReferencesSpiral wound gasket and fabrication method thereof Spiral wound gasket Vortex gasket for automative exhaust system Tandem seal gasket assembly Sealing gasket arrangement Spiral wound gasket with at least five inner and outer plies secured by at least four welds Patent #: 5683091 InventorAssigneeApplicationNo. 834610 filed on 04/14/1997US Classes:277/610, Spirally wound structure277/627, Particular seal material or construction277/938Carbon or graphite particle or filamentExaminersPrimary: Reichard, Lynne A.Assistant: Binda, Greg Attorney, Agent or FirmInternational ClassF16L 017/06Foreign Application Priority Data1996-06-01 DEAbstractA flange seal utilizing a spirally wound steel strip with a V-shaped central portion and a sealing strip between the turns of the steel strip has a pair of layers of soft sealing material on opposite sides of the sealing ring engaging projecting portions of the sealing strip so that the projecting portions of the sealing strip do not exceed 0.5 mm in width beyond the edges of the steel strip.Field of SearchContact seal for a pipe, conduit, or cablePlural interfitting seal members for installation on the individual joined pipes, conduits, or cables Inserted between end-to-end pipe, conduit, or cable joint Spirally wound structure Particular seal material or construction Spirally wound structure Carbon or graphite particle or filament | |
