Founded as Palmason Industrial Equipment Company to manufacture industrial evaporators
Purchased by the Parker Pen Company and renamed Parkson Industrial Equipment Company
Acquired by Axel Johnson Inc.
Entered the environmental market with the Lamella® Gravity Settler, the original inclined plate clarifier
Introduced the Aqua Guard® Bar/Filter Screen, a continuous, self-cleaning fine screen
Moved further into liquid/solids separation with the DynaSand® Filter, a continuous backwash, upflow, granular media filter