Dental apparatus

Dentistry – Apparatus – Having heater or electrode

Patent

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Details

Other Related Categories

433 80, 219311, A61C 300

Type

Patent

Status

active

Patent number

049732463

Description

ABSTRACT:
A dental apparatus is provided which includes a handle having a hollow interior and an end portion which is slightly curved to facilitate insertion in the oral cavity of a dental patient. Within the hollow interior, an air heater system is provided consisting of an air vortex tube. Air is delivered to one end of the vortex tube in a direction perpendicular to the longitudinal axis of the tube causing the air to rapidly spin within the tube. The spinning air impinges upon an air flow control member at the opposite end of the tube which causes a portion of the air to deflect rearward toward its point of entry. This air is cool in temperature, and expelled from the rear of the tube. The non-deflected air is warm and directed out of the curved end portion of the handle. The invention further includes an adjustment system to control the temperature of air leaving the vortex tube.

REFERENCES:
patent: 2098732 (1937-11-01), Prather
patent: 2420338 (1947-05-01), Page
patent: 4026025 (1977-05-01), Hunt
patent: 4108178 (1978-08-01), Betush
patent: 4184064 (1980-01-01), Williams
patent: 4302185 (1981-11-01), Hall
patent: 4349725 (1982-09-01), Sheridan
patent: 4531913 (1985-07-01), Taguchi
patent: 4538988 (1985-09-01), Henrichsen et al.
patent: 4759712 (1988-07-01), Demand
"A Short Course on Vortex Tubes and Application Notes" by Vortec Corporation (1974).
Ranque, G., "Experiments on Expansion in a Vortex with Simultaneous Exhaust of Hot Air and Cold Air", Le Journal de Physique et le Radium, Paris Review Bibliographique, Tome IV, Serie VII, Bulletin Bi-Mensuel, 2 Jun. 1933, p. 112S.

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