An ultrasonically-welded hinge damper

摘要

A damper (10) includes a housing (12) having an opening (30), a cover (20) over said opening), a rotor (16) rotatably disposed in said housing, said rotor extending outwardly of said housing through said cover, a seal between said cover and said rotor; and a v-shaped channel (40) in one of said housing and said cover and a ring (50) in the other of said housing and said cover, said channel having walls defining said channel, and said ring being rectangular in cross-section and including edges received against said walls.