Hagerstown, Maryland Patent of the Year – 2024/2025
Jamison Door Company has been awarded the 2024/2025 Patent of the Year for its innovation in thermal door systems. Their invention, detailed in U.S. Patent No. 11920854, titled ‘Defrosting roll-up climate controlled door’, titled ‘ introduces a dual-curtain door system that actively prevents frost and condensation in climate-sensitive environments.
This patent marks a major advancement in cold storage technology. The roll-up door uses two flexible curtains that create an insulating air space when deployed. A built-in heater warms this space, stopping moisture buildup that can lead to frost, fogging, or ice formation. This not only protects products but also keeps loading areas safer and more energy efficient.
The door includes a control system that monitors conditions in real time and activates the heater as needed. Side frames feature adjustable air inlets that draw warm air from adjoining rooms, boosting energy efficiency. The system can be integrated with standard sensors and automation controls already in use in warehouses and distribution centers.
By reducing the need for manual defrosting or downtime, this invention improves workflow and saves on maintenance. Jamison Door Company’s solution offers a practical way to manage cold environments in food, pharma, and logistics operations. It reflects a clear understanding of real-world facility challenges and delivers a smart, efficient fix.