03970856 is referenced by 56 patents and cites 3 patents.

A handheld ultraviolet light applicator and power circuit for dental use is disclosed having a U-shaped argon filled glass ultraviolet lamp enclosed in a flat or curved lens and attached to a handle. Lamp excitation is supplied through a shielded cable from a power source having a high reactance transformer coupled to a fused safety circuit responsively cutting off power in the event of dangerous open circuit conditions.

Title
Ultraviolet light applicator
Application Number
5/578284
Publication Number
3970856
Application Date
May 16, 1975
Publication Date
July 20, 1976
Inventor
Charles J Ziegler
Cleveland
OH, US
James W Mahaffey
Huntington
NY, US
Agent
Philip Sperber
Philip H Pohl
Assignee
Cavitron Corporation
NY, US
IPC
G01J 1/00
View Original Source