Our History

Company was established as Operadio

J. Mc William Stone, Sr., “Mac”, founded the company in September, 1922. Stone chose the name “Operadio” for it connotations of quality music and fine tone. Upon discovering that the Chicago music firm Lyon and Healy had registered the trademark “Radiopera” the month before, Stone bought it from them to avoid conflict. Lyon and Healy became a distributor.

World Fair Chicago

Operadio displays at World Fair Chicago and builds a talking robot for Sear’s Roebuck.

Micromatic II

Sold over 1 million, you can still find one on ebay.

Military & Naval Equipment

Operadio temporarily sets aside its efforts to produce its own products and focuses on producing military and naval equipment. After Pearl Harbor the company produces nothing but equipment to support the war effort-mostly paging systems, for everything from defensive plants to warships.

Comiskey Park

Dukane installs sound system at the world famous Comiskey Park in Chicago, IL.

Operadio Becomes Dukane

Dukane Game Division

Dukane Opens Ionavac® Division

Dukane opened Ionavac® Division and enters the High Fidelity Stereo Speaker Market.  The technology is based on Dukane’s Patented Inertialess Transducer which produces amazingly clear high frequency response. The IONOVAC® offered an entirely new concept of sound reproduction. It was new and different because an ionic cloud replaced the diaphragm used in ordinary speakers. Sound was generated and transmitted inside a tiny quartz cell no larger than a dime. 

Dukane Goes to Space with NASA

NASA requests Dukane to assist them in writing the specs for a similar underwater locating device for use on commercial aircraft with flight data recorders in anticipation of Federal Regulations (FAA). Dukane then developed and produced the product for sale to major commercial airlines.

Dukane Ultrasonics

First Ultrasonic System developed based on the Ultrasonic Pinger Technology Start of a new division “Dukane Ultrasonics”

Developed Multiple Patented Ultrasonic Technologies

Center Bolt Type Acoustic Transducer Ultrasonic Rigid Horn Assembly Dove Tail Slide Fluid Flow Sonic Energy Reactor Ultra-Sonic Horn Ultrasonic Metal Welding Apparatus Control Circuit for Piezoelectric Ultrasonic Generators  

Invented Weld by Distance

Project with Kodak Invented “Weld by Distance” technology

Dukane Canada

Dukane started their global expansion by establishing Dukane Canada.

ISO Certification

Dukane receives ISO 9001 Certification

Jack Stone Completes 50 Years

Jack Stone, son of company founder celebrates 50 years at Dukane.

Dukane Czech

Dukane opens Technical Applications and Service Center in Prague (Czech Republic) and Shanghai (China).

Dukane France

Dukane opens Technical Applications and Service Center in Lyon, France.

First Servo Controlled Ultrasonic Welding System

Dukane Launched iQ Servo, the first servo driven ultrasonic welding system and filed patent for Melt-Match® technology. Melt-Match® technology, a unique method that precisely controls the collapse speed profile during the weld.