US Patent Issued to RAIKU Packaging OU on Nov. 3 for "Wooden spring, a method and a helical dryer for making the wooden spring, a wooden spring fabric and a use of the wooden spring" (Estonian Inventor)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,824, issued on Nov. 3, was assigned to RAIKU Packaging OU (Tallinn, Estonia).

"Wooden spring, a method and a helical dryer for making the wooden spring, a wooden spring fabric and a use of the wooden spring" was invented by Rain Randsberg (Tallinn, Estonia).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wooden spring includes a strip of wood of medium thickness a, medium width b, and stretched length l. The coils of strips of wood are made using a method of making wooden springs with a helical shape, the coils having a mean diameter d and an average pitch s. Medium thickness a is 0.2 to 2 millimeters (mm), medium width b is 1 to 10 mm, stretched len...