Our Patents

Our weldless structural system is comprised of panels that include the primary structural beam section as an integral frame member. When assembled, the structure becomes self-framing and self-supporting.

Our Tank Cover structure provides integral support beams as well as a panel system that allows for spanning capacity to meet the needs of any field application. This structural system has been used to construct tank covers of all sizes and in all geometric configurations; square, round and irregular. The original patent has been supplemented with over a dozen additional patents that have added features and accessories to the original tank cover product.

Our cover product includes a gear hinge that is integral to the panel decking. This allows any individual panel on a cover system to become a fully opening access hatch. This effectively allows for a cover that provides total access to the tank below. The gear hinge is specifically designed to be unbinding and self-cleaning, both critical features for the daily operation of tanks of this type. This patented feature is completely unique to the Hallsten Aluminum Cover.

In partnership with Ovivo, we have developed and been awarded a patent for a cover system with integral air distribution for the aeration of wastewater. This AirBeam cover integrates the innovative TransMax aeration system of Ovivo into the Hallsten Aluminum Cover. The beams of the cover structure become the air distribution plenums for the aeration system. Additionally, the air metering orifices of the Ovivo aeration system are located above the cover surface. This location makes the diffusers truly non-clogging and extremely accessible. Aeration system maintenance can be easily performed from the slip resistant deck of the cover surface.

In our continuing effort to create products of environmental importance, we have developed a modular biofiltration support system for the construction of large biofilters used in the elimination of volatile organic compounds and odors from waste treatment processes. The 100% recycled polymer floor modules can be quickly assembled to form a biofilter cell of any width and length. The system assures the even distribution of air emitted through the floor with minimal head losses. The floor system supports heavy wheel loads for the use of equipment to service the media beds.