Patent ID: 8720954

Claim:
A fastening device for a hand-held applicator, comprising: a body having an outer sidewall, an inner sidewall, and a bottom surface extending radially and having an outer edge connected to the outer sidewall and an inner edge connected to the inner sidewall; a duct extending through the body; a cavity formed in a bottom of the body; a pipe integrally formed with the body and protruding from a surface of the body within the cavity, the pipe communicating with the duct; and a grappling device formed in the bottom surface of the body, the grappling device comprising an annular ring extending radially inwardly from the bottom surface of the body in a plane perpendicular to a longitudinal axis of the duct, a radial extent of the grappling device varying about the circumference of the grappling device, wherein the annular ring does not extend radially inwardly past the body inner sidewall.