Nicholas R Webb

US Patent:

59677759, Oct 19, 1999

Filed:

Jul 2, 1997

Appl. No.:

8/887475

Inventors:

Ehab Shahid - Valley cottage NY
Nicholas J. Webb - Wrightwood CA

Assignee:

Dental Devices, LLC - San Antonio TX

International Classification:

A61C 100
A61C 300
A61C 1910

US Classification:

433 29

Abstract:

A dental comparator device includes a body, a polychromatic light emitter within the body, and a magnifying lens and holder for a dental standard coupled to the body. The standard holder is either a clip, a hub for receiving a plurality of radially aligned standards, or a magnetic standard holder. According to one embodiment, the body is elongate and the light source and magnifying lens are provided at one end of the elongate body. The light source is a halogen bulb powered by batteries. The magnifying lens is oriented perpendicular to the body. Coupled to the lens is a light-transmitting ring-shaped member for directing light to one side of the lens, to thereby illuminate a tooth and standard situated before the transparent tubular-shaped member. According to another embodiment, two booms are coupled to the body. One boom is provided with a standard holder at its distal end and the other boom is provided with a magnifying lens at its distal end.