Pipe joint and a gasket therefor
June 15, 2021. 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 2926937 3054627 Pipe coupling and pipe joint connection Deformable metal-to-metal seal Universal type butterfly valve and manufacturing process for same Tubular goods joint Plastic bore seal Pipe joint and gasket retainer for use in pipe joint O-ring gasket material and method for making and using same Seal device for flow line applications InventorAssigneeApplicationNo. 882957 filed on 06/15/2001US Classes:285/24, Guide and support277/603, Plural interfitting seal members for installation on the individual joined pipes, conduits, or cables277/608, Inserted between end-to-end pipe, conduit, or cable joint285/350, Extrusion recess285/354, Screw thimble285/363Flanged pipeExaminersPrimary: Browne, Lynne H.Assistant: Collins, Giovanna Attorney, Agent or FirmForeign Patent References
International ClassF16L 035/00Foreign Application Priority Data1998-05-17 GBAbstractA gasket 17 for a demountable pipe joint 1 of an hygienic food processing system, the gasket 17 comprising a first part 19 defining a surface 27 for providing a smooth transition from a first pipe end 3 to a second pipe end 5 at a pipe joint 1, the sides of the gasket 17 each defining a plateau 25 adjacent the surface 27 for abutting the pipe ends 3, 5, in use, to produce an hygienic seal, wherein the first part 19 of the gasket 17 is made from a plastics material having sufficient structural strength when not fully supported to withstand pressures within the pipes 3, 5, during use, without damaging or separating from the pipe ends. Such a gasket has been found to be extremely efficient and appropriate in hygienic food processing systems, which in the past have relied heavily on elastomeric gaskets.Other References
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