Importance

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Abstract

A hose having multiple conduits or conductors for transmitting drive air, water, chip air, light and/or electricity to a turbine-driven dental handpiece or other tool and for conveying exhaust air away from that handpiece, such hose being equipped with a plurality of swivel connectors for permitting the handpiece to be rotated a limited amount in each direction about its longitudinal axis with no objectionable restraint imposed, or restorative force exerted, by the conduits as they twist about each other during such handpiece rotation. In each disclosed embodiment, a plurality of the conduits have at least adjacent portions unattached to each other and individually provided with separate swivel connections. The disclosure also sets forth details of the low torque swivel connectors having self-energizing or other seals, a stop ring for limiting the extent of rotation of an outer tube encasing the conduits, and a means for preventing sharp bends in the outer tube that might otherwise interfere with the internal swiveling and twisting of the conductors.

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First Claim