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Home Media News JST’s Slip Sealing Structure Got the U.S. Patent Certificate

JST’s Slip Sealing Structure Got the U.S. Patent Certificate

  • January 13, 2022

It’s great to announce that JST successfully got its invention of A Slip Sealing Structure, which was authorized by the U.S. patent and Trademark Office and obtained the invention patent certificate.


This slip sealing structure comprises a cylindrical sealing body comprising an upper and a lower end surfaces, wherein an outer side and an inner side of at least one end surface of the sealing body are provided with an outer metal retaining ring and an inner metal retaining ring respectively, a fabric covering layer is disposed on the at least one end surface, and the outer and inner metal retaining rings are respectively pressed against an outer and inner edges of the fabric covering layer such that the fabric covering layer provides support for the outer and inner metal retaining rings.

The slip sealing structure according to the present invention can meet the application requirements of the slip casing head under the operating conditions of a high pressure of 15000 PSI and a PU temperature range (from -29℃. to 121℃.)


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