Patents by Inventor U Suk Park

U Suk Park 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).

  • Patent number: 8276280
    Abstract: The present invention provides electric pruning shears which can improve operation convenience by increasing the operating speed and eliminating hand fatigue during pruning of fruit trees. For this purpose, the present invention provides electric pruning shears which can improve safety during handling by implementing a new type of switching means having a separate safety switch capable of being separated from a main body and put on a user's finger and reduce the volume and weight by reducing the number of parts associated with the safety switch. Moreover, the present invention provides electric pruning shears which control a motor to be reversely rotated when there is an abnormality in blades of the electric pruning shears during a pruning operation, thus escaping from the overall abnormality including motor damage.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: October 2, 2012
    Assignee: Republic of Korea (Management: Rural Development Administration)
    Inventors: Kyung Suk Lee, Hyo Cher Kim, Hye Seon Chae, U Suk Park, Kyung Ran Kim, Ki Hwan Jin, Kwan Woo Kim, Yoon Jeong Baek, Dae Sop Lim, Soon Yean Jung
  • Publication number: 20100064527
    Abstract: The present invention provides electric pruning shears which can improve operation convenience by increasing the operating speed and eliminating hand fatigue during pruning of fruit trees. For this purpose, the present invention provides electric pruning shears which can improve safety during handling by implementing a new type of switching means having a separate safety switch capable of being separated from a main body and put on a user's finger and reduce the volume and weight by reducing the number of parts associated with the safety switch. Moreover, the present invention provides electric pruning shears which control a motor to be reversely rotated when there is an abnormality in blades of the electric pruning shears during a pruning operation, thus escaping from the overall abnormality including motor damage.
    Type: Application
    Filed: August 11, 2009
    Publication date: March 18, 2010
    Inventors: Kyung Suk LEE, Hyo Cher KIM, Hye Seon CHAE, U Suk PARK, Kyung Ran KIM, Ki Hwan JIN, Kwan Woo KIM, Yoon Jeong BAEK, Dae Sop LIM, Soon Yean JUNG