Research project receives patent for invention

The Letters Patent signed by Atty. Lolibeth R. Medrano, Bureau of Patents Director (l) and Dr. Rene L. Celda with the machine.

After years of waiting, the research project of the faculty members of the College of Industrial Technology (CIT) was finally granted  Letters Patent for an Invention by the Bureau of Patents (BOP) 0f the Intellectual Property Office of the Philippines (IPOPHIL).

The TOROID-CORD TUNGSTEN INERT GAS (TIG) AND SHIELDED METAL ARC (SMAW) WELDING MACHINE was granted patent on April 5, 2019, six years after the application was submitted on November 22, 2013.

Dr. Rene L. Celda, the current CIT Dean, said that it took one year for the inventors to conceptualize the project. “ We planned the project and build our own model; it was not modified neither revised, it was original, “ he said. Dr. Celda, Profs. Renato O. Abucion, Enrique E. Elambre, Nemia H. Mabaquiao and Pablo N. Minerva, Jr. are the inventors.

“ We used toroid (doughnut type ) core which is different from the usual E-type, “ added Dr. Celda. The welding machine is with AC and DC shielded Metal Arc (SMAW) function utilizing ambient air as its coolant and is used alternatively for Tungsten Inert Gas (TIG) operation. The machine is power efficient and temperature stable which can stand continuous operations for 30 minutes without overheating.

“To make it simple, our invention can run at least 30 minutes of continuous welding, thus, an advantage in performance over the traditional ones. We also have advantage in maintenance and performance over the inverters which are modular and have limited lifespan, ours is easy to maintain and lasts longer, ”explained Dr. Celda

One distinct feature of the invention is the inclusion of the Tungsten Inert Gas (TIG) welding using Argon gas. “Traditionally, oxy-acetylene and conventional welding machines are separate, but in our invention, we integrate the two facilities in one machine and utilizes Argon, an inert gas,” said Dr. Celda.

The patent number 1-2013 000350 was assigned to the invention and shall be valid for 20 years from the date of filing.