Xerium secures USPTO patent for EnerVent roll cover venting technology

1 February 2017 (Last Updated February 1st, 2017 18:30)

Xerium Technologies has won a patent from the US Patent and Trademark Office (USPTO) for its EnerVent roll cover venting technology, launched in 2014.

Xerium secures USPTO patent for EnerVent roll cover venting technology
Xerium Technologies has won a patent from the US Patent and Trademark Office (USPTO) for its EnerVent roll cover venting technology, launched in 2014.

EnerVent technology is designed to reduce energy consumption, improve drying rates and increase production for machines producing tissue, paperboard and packaging, and graphical papers.

According to Xerium, EnerVent is engineered with wider grooves and shallower depths, creating improved groove wall stability and void volume longevity.

Available in rubber and polyurethane covers, EnerVent is capable of remaining effective under load, with softer covers, and throughout the cover life. 

"Obtaining this latest patent represents our ongoing strategic focus of being the technology leader in our markets and creating documented value for our customers."

Xerium Technologies EVP and CTO Bill Butterfield said: “Conventional roll cover venting products feature narrow grooves that are inherently ineffective and become even more ineffective with age, with softer cover materials, or under higher loads.

“This inherent narrowing causes the bottom portion of the void volume to be unavailable thereby preventing the grooves to remove water effectively. 

“This tendency increases in softer roll covers, and cover swelling can accelerate the effect leading to significant efficiency loss in water removal.”

Butterfield further added: “Obtaining this latest patent represents our ongoing strategic focus of being the technology leader in our markets and creating documented value for our customers. 

“EnerVent technology is creating benefits approaching, or in excess of, $1m dollars in energy savings and production gains for several customers.”

The company currently manufactures fabrics and roll covers used in the production of paper and packaging, nonwovens, and other industrial manufacturing processes.