Patent ID: 7530910

Claim:
A device adapted to be emplaced in a self-securing manner between adjacent strings of a tennis racquet for dampening vibrations caused by impact with a tennis ball and for causing a beneficial sensory effect to be produced by the customary use of said racquet, said device comprising: a) a monolithic anchoring base fabricated of a resilient polymer and bounded by parallel substantially flat faces spaced apart by a perimeter wall of oblong contour and a circular cylindrical bore orthogonally bridging said faces, said perimeter wall having recessed therein a continuous circumferential groove extending to a bottom that defines a square shelf configuration surrounding said bore and adapted to be embracingly contacted by said strings, b) an insert assembly comprised of inner and outer components of rigid plastic construction, each having a circular cylindrical wall bounded by internal and external surfaces and extending between an open distal extremity and a proximal extremity having an outwardly directed flange adapted to abut against a face of said base, the external surface of the wall of said outer component residing in contact with said bore, and the external surface of the wall of said inner component being in contact with the internal surface of said outer component to permit sliding telescopic interaction of said components to form a chamber region within said bore, and c) an action-activated element located within said chamber region.