公开(公告)号：US20090189358A1

公开(公告)日：2009-07-30

申请号：US12019897

申请日：2008-01-25

申请人： Michael Briscoe ,  James McPherson ,  David A. Pixton

发明人： Michael Briscoe ,  James McPherson ,  David A. Pixton

IPC分类号： F16J15/00

CPC分类号： F16J15/062 ,  F16J15/166 ,  F16J15/3216

摘要： An apparatus is disclosed in one embodiment of the invention as including an annular seal (e.g., an o-ring) and a backup ring to provide support to the annular seal. A gland is provided to accommodate the backup ring and the annular seal. The gland has a contact surface which is adapted to contact a corresponding contact surface of the backup ring upon inserting the backup ring into the gland. The diameters of the contact surfaces of the backup ring and gland are sized such that the contact surface of the backup ring radially interferes with the contact surface of the gland, thereby urging the backup ring out of the gland. A retention mechanism, such as interlocking grooves, protrusions, ridges, notches, slots, or the like may be provided in the backup ring and gland respectively to prevent the backup ring from completely exiting the gland.

摘要翻译： 在本发明的一个实施例中公开了一种装置，其包括环形密封件（例如，O形环）和支撑环，以向环形密封件提供支撑。 提供压盖以容纳支撑环和环形密封。 所述密封套具有接触表面，所述接触表面在将所述支撑环插入所述压盖时适于接触所述支撑环的相应接触表面。 支撑环和压盖的接触表面的直径的尺寸使得支撑环的接触表面径向地干涉压盖的接触表面，从而将支撑环推出压盖。 可以在支撑环和压盖中分别设置保持机构，例如互锁槽，突起，脊，凹口，槽等，以防止支撑环完全离开压盖。