Patents by Inventor Won Ki Lim

Won Ki Lim has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Tuning pin apparatus having impediment function against the rewinding
    Patent number: 5869780
    Abstract: A piano tuning pin apparatus for prevention of loosening of the piano string, i.e., of rewinding of a piano tuning pin, characterized by setting the tuning pin constructed additionally a brake structure having the impediment function against the rewinding on the circumference surface of the piano tuning pin and the fixing portion of pin having two putting pipes each other, to prevent loosening of the piano. Between a tuning hammer tip inserting part and a hole of the tuning pin, a brake structure is formed to take a projection having a suitable distance and height along with a circumference surface.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: February 9, 1999
    Inventor: Won Ki Lim