Patent ID: 8422716

Claim:
A telescoping boom pole for use with a microphone, comprising: a) a first cylindrical conduit having an outer wall and top and bottom open ends; b) a second cylindrical conduit having an outer wall, top and bottom open ends, and slidably assembled over the first conduit; c) clamping means comprising: i) an annular cylindrical collar having top and bottom open ends, a top edge and a bottom edge, a generally cylindrical inside surface, a generally cylindrical outside surface, the inside surface including a threaded portion proximate said bottom edge and a collet restraining means proximate said top edge; ii) an annular, compressible collet having top and bottom open ends, a generally cylindrical inside surface, and an outside surface, the collet having a lip adapted for removable engagement with said collet restraining means, the collet further including an inclined lower portion on said outside surface thereof iii) an annular sleeve having top and bottom open ends, a generally cylindrical inside surface, a generally cylindrical outside surface, said sleeve affixed to the top end of the second conduit, the outside surface of the sleeve including a threaded portion adapted for engagement with the threaded portion of said collar, said top edge of said sleeve formed into an upwardly-projecting wedge for urging the collet inwardly at said inclined lower portion of said collet as said collar is tightened onto said sleeve, said collet, sleeve, and collar compressing said first conduit to be immovably secured to said second conduit; and (iv) a substantially cylindrical spacer fixed between said first and second conduits for maintaining the co-alignment of the longitudinal axes of each of the conduits.