Maritime Inventions: Coleman Suspension Innovations


Stephen Leonard Chauncy Coleman was a civil engineer. He graduated from UNB. Coleman was first to propose the use of equalizer bars on the suspension of motor vehicles. Coleman was a prolific inventor. He obtained at least nine Canadian patents on shock absorbers, suspension systems, universal joints, air springs, and rotary engines.

Frame Maritime Inventions: Coleman Suspension Innovations

Coleman had designed a suspension system for Oldsmobile Company in Lansing, Michigan. He also did some work for other car manufacturers in Detroit. He had been invited to England to design a suspension system for Triumph Motor Car Co. While he was there he worked for Melbourne Engineering Works in Darbyshire, England on a design project for Daimler Motor Company Ltd, the manufacturer of Jaguar and Mercedes Benz cars.

Triumph Maritime Inventions: Coleman Suspension Innovations

In 1928 he formed the Coleman Auto Spring Suspension Co. Ltd. The purpose of the company was to promote the Coleman patents and generate revenue from the sales of licenses. With the death of his father, he inherited the Barker House Hotel on Queen Street and the Summer Resort at Kilarney Lake. During the great depression, all of Coleman’s income from patent royalties was spent to maintain the hotel and resort.

Coleman’s invention can still be seen on most cars and small trucks without significant changes from the inventor‘s original design.

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Mario is a Registered Patent Agent with both the Canadian Intellectual Property Office and the US Patent and Trademark Office. Mario has an office in Fredericton, New Brunswick and offers services to clients across Atlantic Canada. In 2001, he wrote and published a book entitled "Great Maritime Inventions 1833-1950"; In 2015, he wrote and published a brochure entitled: “Inventions”. Mario has drafted and successfully obtained for his clients, over 605 patents in 10 countries. Mario D. Theriault & Co. 812 Hwy. 101, Nasonworth Fredericton, New Brunswick E3C 2B5
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