Patent ID: 7093863

Claim:
A restraining gasket for use in a pipe joint when connecting a male pipe end to a female pipe end having a compression gland tightenably attached to the female pipe end, said restraining gasket comprising: a) a resilient body; and b) a locking segment, which comprises (i) a radially inward tooth (ii) a radially outward upper protrusion, and (iii) an elbow positioned in the radially outer half of the gasket and axially between the gland and the upper protrusion, wherein upon rotation of the locking segment, the tooth bites into the male pipe end, and the upper protrusion bites into the female pipe end; and wherein rotation of the locking segment in response to a force tending to separate the first pipe end from the second pipe end is maintained below a desired maximum rotation by contact between the elbow and the compression gland.