Patent ID: 6523833
Filing Date: 2003-02-25
Classification: F16J

Abstract:
A low-load circular seal with a tri-leaf cross-sectional configuration being attached to an attachment member that has a ring-like dovetail groove with a trapezoidal cross-sectional configuration, said dovetail groove comprising an opening portion, a first side-wall face, a second side-wall face, and a bottom-wall face, said seal comprising;a first arc portion extruding toward the first side-wall face and touching the bottom-wall face; a second arc portion extruding toward the second side-wall face and touching the bottom-wall face; a concave portion corresponding to the bottom-wall face being formed between the first arc portion and the second arc portion; and a protruding portion with no more than one tip arc portion, formed on an opposite side to the concave portion between the first arc portion and the second arc portion, protruding beyond the opening portion.