Mdt Corporation

Richard W Hanson

Barry S Young

John W Lewis

Austin E Unsworth

John W Spencer

Dental light

Dental patient chair

An adjustable chair, such as a dental patient chair includes a chair back pivotally connected to a frame and mechanically linked to a travelling seat assembly so that as the chair back is pivoted, the distance between the back and seat assembly increases as the back is moved to an upright orientation and deceases as the back is moved to a reclined orientation. Linkage between the back and seat assembly may include a plate connected to rotate on an axis as the back is pivoted, and eccentrically connected to the travelling seat assembly.

Mechanical chair

A quick disconnect multi-line utility connector including a first body member configured and sized to permit passage, end to end, through the hollow interior of an upstanding tubular mounting post. The first body member is connected to a second body member associated with primary utility support conduits at a junction box.

Quick disconnect multi-line connector in a dental system

A dental control unit having conduit-carrying whip arms pivotally mounted on a base so as to leave top and side surfaces of a housing covering the base entirely free of seams or openings where oral cavity spray can enter; and conduits for dental handpieces that enter the whip arms at pivot connections for the arms inside the housing, such that the pivot connections and the portions of the conduits entering the whip arms are protected from oral cavity spray.

Growing community of inventors

Sherwood, OR, United States of America

Richard W Hanson