Packing ring for use under high temperatures and pressures

Abstract

Abstract A packing ring which would normally be used in a stuffing box or the like but which may be of any of numerous cross sections desired for specific installations, the packing ring being made up of alternating layers or laminations of thermosetting materials and thermoplastic materials respectively. The thermosetting materials and the thermoplastic materials could be of an desired materials of the type indicated but would preferably be selected so as to impart to the finished seal ring characteristics of the materials so selected which might be desired for a specific surface. Each layer or lamination would be made up of a fabric treated with rubber or some other suitable natural or synthetic resin and, in the case of the thermoplastic composition materials, would be made up of Nylon, tetrafluoroethylene, or acrylic plastic by way of examples, and in either case being impregnated with rubber or a synthetic resin or the like. The thermosetting materials would consist of fibers or fabrics of cotton, asbestos, fiber glass, or the like, by way of example, likewise impregnated with rubber or a resinous compound. These would be laid in alternating fashion one on top of the other to provide a sufficient volume for the body to be formed, and then would be pressure molded into the cross section shape desired and heat treated until both the thermoplastic and the thermosetting laminations would solidify and bond to one another to make up a monolithic ring.

Inventors

• 👤 Aaron J Pippert

Bibliographic Details