MUMBAI, India, May 1 -- Intellectual Property India has published a patent application (202641049075 A) filed by Dr. J. Joshua Gnana Sekaran; Dr. Bal Krishna Yadav; Dr. Nikunjkumar Hareshbhai Patel; Dr. S. Berbeth Mary; Mr. Mani Vannan M; and Mrs. C. Rama Devi, Ketty, Tamil Nadu, on April 17, for 'passive heat-driven ventilation system using shape-memory alloy (sma) actuation.'
Inventor(s) include Dr. J. Joshua Gnana Sekaran; Dr. Bal Krishna Yadav; Dr. Nikunjkumar Hareshbhai Patel; Dr. S. Berbeth Mary; Mr. Mani Vannan M; and Mrs. C. Rama Devi.
The application for the patent was published on May 1, under issue no. 18/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a passive, energy-efficient ventilation system that utilizes shape-memory alloy (SMA) actuators to automatically regulate airflow based on ambient temperature. The system comprises ventilation flaps, SMA actuators, and mechanical linkages that convert the contraction of the SMA wires, triggered by heat, into rotational motion to open or close the flaps. When the ambient temperature rises above a predetermined threshold, the SMA contracts, causing the vent to open and allow airflow; as the temperature decreases, the SMA returns to its original shape, closing the vent. The system operates without external electricity, provides autonomous, self-regulating ventilation, and is suitable for residential, commercial, industrial, and agricultural applications. This invention offers a low-maintenance, sustainable, and noise-free alternative to conventional electrically powered ventilation systems, improving thermal comfort and energy efficiency."
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