When my sister Sarah was young, she often moved in and out of our house, which had a big, heavy door. This door, even though it looked grand, was dangerous because it closed very hard. My father, ever the problem solver, turned his gaze toward the world of door hinges with intense curiosity. As a hardware manufacturing expert, he began exploring different types of hinges, working with a variety of materials such as stainless steel known for its corrosion resistance, and solved the problem.
He studied all kinds of hinges like butt hinges and spring hinges, understanding how they worked. With his skills, he invented a new kind of hinge that made our heavy door safer and easier to use. This new hinge type allowed for easy opening and safe closing, its angular movement about a fixed axis of rotation controlled by a spring that is loaded to prevent end play. The new design was not only good for our home, but it also helped many other industries, such as medical and aerospace, to have safer and better-functioning doors. He successfully innovated the traditional big, clumsy door closer box into a sleek, efficient barrel design that opens easily and closes safely. Perfect for Sarah and my grandma!