Patent ID: 7914446

Claim:
A video inspection system comprising: an elongated, hollow tool body generally cylindrical about a longitudinal axis; a viewing head comprising a viewing aperture through said tool body, said viewing head comprising an optical lens disposed at an axial end of said tool body; at least one illumination aperture disposed adjacent said viewing aperture for illuminating a workpiece site to be inspected; an interior plenum chamber sealed by a seal ring between a base member and a sleeve member of the tool body, said seal permits relative movement between the base and the sleeve while substantially preventing leakage of a fluid into or out of the plenum chamber; a fluid supply tube coupled in flow communication between a fluid source and the plenum chamber; a first fluid ejection nozzle disposed adjacent said viewing aperture to direct fluid received from the plenum chamber generally radially outward from said tool body; a digital camera disposed within said tool body and supported by a camera mount such that said digital camera is axially movable within said tool body; a light tube disposed within said tool body, said light tube comprising a first end in optical alignment with said optical lens and a second end in optical alignment with said digital camera; and a data cable connected to said digital camera for transmitting data from said digital camera to external image data processing equipment.