Timeline 1920-1939


Moore files a patent for a grab bucket machine that improves trench safety for his workers.


Moore develops the first practical wellpoint system and immediately files a patent, which was granted in 1926.


The first of many patents for improvements to the wellpoint system is filed.


Moretrench wellpoints are used for the first time in New York City during the construction of the Western Union Building.


At a contractors trade show in Atlantic City, NJ, Moore installs 40 wellpoints in front of the boardwalk and his men excavate 22 feet below sea level by hand to demonstrate his invention.


Billed as the second largest dry dock in America, the Todd Dry Dock in Brooklyn, NY was excavated with the help of Moretrench wellpoints and was completed in just 15 months.


The Moretrench Machine Company is reincorporated as the Moretrench Corporation. Total authorized stock is $250,000.


Moore files a patent for a “Hole-Punching Device” a method of sinking wellpoints more efficiently and to greater depths than previously achievable.


Moretrench wellpoints are shipped to Singapore to dewater the excavation for the George V Graving Dock at a British Naval Base. Wellpoints are also used at a government dry dock in Peru, and an oil refinery in France.


Moretrench wellpoints have been used on 14 subway projects in New York and New Jersey.


Wellpoints dewater the excavation for a 9,000-foot-long seawall at Fort Monroe, VA.


Bonneville Lock and Dam in Oregon. When the presence of quicksand above the rock makes anchoring the dam foundation difficult, self-jetting wellpoints are installed down to rock to stabilize the problem soils.


Moretrench develops the “farm pump” water delivery system for crop irrigation