公开(公告)号：US20180094499A1

公开(公告)日：2018-04-05

申请号：US15832551

申请日：2017-12-05

申请人： HITEK URETHANE GLOBAL INC.

发明人： Kelly BORDEN ,  Trevor Fritz

IPC分类号： E21B33/038 ,  F16J15/3284 ,  F16J15/3252

CPC分类号： E21B33/038 ,  E21B33/085 ,  E21B2033/005 ,  F16J15/3204 ,  F16J15/3252 ,  F16J15/3284

摘要： An all-elastomeric sealing element for a rotating control device includes a base portion, a conical portion and has a central pipe opening through both the base portion and the conical section. The conical section has an elastomeric core layer and an elastomeric surface sealing layer which encases the core layer. The surface sealing layer is softer than the core layer, as measured on a standard durometer scale.

公开(公告)号：US10550658B2

公开(公告)日：2020-02-04

申请号：US15832551

申请日：2017-12-05

申请人： HITEK URETHANE GLOBAL INC.

发明人： Kelly Borden ,  Trevor Fritz

IPC分类号： F16J15/3204 ,  E21B33/038 ,  E21B33/08 ,  F16J15/3252 ,  F16J15/3284 ,  E21B33/00

摘要： An all-elastomeric sealing element for a rotating control device includes a base portion, a conical portion and has a central pipe opening through both the base portion and the conical section. The conical section has an elastomeric core layer and an elastomeric surface sealing layer which encases the core layer. The surface sealing layer is softer than the core layer, as measured on a standard durometer scale.