Green Tweed of Delaware, Inc.

Romel R Ner

Vinay K Nilkanth

Paul E Roberts

Saul Guevara

A seal assembly adapted for use in sealing two mating surfaces spaced apart by a gap is provided. The seal assembly includes a sealing element adapted to be located in a groove in one of the mating surfaces. A back-up ring assembly is provided which includes a first back-up ring made from a relatively soft material and a second back-up ring made from a relatively hard material. The first back-up ring includes a body with first and second sides, with one of a groove and an interlocking projection being located on the body along the second side. The second back-up ring includes a body with first and second sides, with the other of the groove and the interlocking projection being located along the first side. The groove is complementarily shaped to the projection and includes a rounded mating surface such that the first and second back-up rings can be interlocked together by connecting the interlocking projection and the groove, with the rounded mating surface reducing stress concentrations on the first and second back-up rings under load.

Growing community of inventors

Carson, CA, United States of America

Romel R Ner