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Despatch DriTech™ Dryer Granted Patent No. US9589817B2 from U.S. Patent and Trademark Office

Minneapolis, Minnesota, USA, May 25, 2017 – Despatch, a leading technology and equipment provider for the solar industry, is pleased to announce the U.S. Patent and Trademark Office (USPTO) has issued Patent No. US9589817B2 protecting the intellectual property of its DriTech™ Dryer. The dryer already has a large installation base with a proven performance track record.

“The DriTech™ Dryer introduces a unique hybrid heating technology that addresses industry challenges associated with faster belt speeds, increased paste VOC concentration and thinner wafers,” said Daniel Ruf, Engineering Manager at Despatch. “Customers are seeing improved cell performance and efficiency with this revolutionary technology.”

The DriTech™ dryer is designed to decouple the VOC removal and binder burn-off for a more efficient drying process. Dryers typically use either convective or IR drying, and rely strictly on a belt speed and temperature relationship. DriTech’s unique hybrid heating with Smart Tube™ technology provides multiple heat delivery mediums to efficiently and effectively remove solvent (VOC) from the paste while safely retaining the binder. A centrally located point-of-generation thermal oxidizer provides maintenance-free VOC abatement ensuring that the chamber remains free of contaminates. Air dilution, up to five times the dilution of conventional dryers, reduces the solvent concentration within the chamber and eliminates dead spots. Airflow is precisely managed to reduce cold air entrainment at the entrance and exit. A rapid peak temperature and internal management of the insulation surface temperature minimizes condensation.

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Media contact:
Roger Dullinger
952-469-8278
roger.dullinger@despatch.com



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