Patents Examined by Lan Mia
  • Patent number: 5058613
    Abstract: A one hand operated umbrella capable of self-closing, including a center shaft of outer tube and inner tube, both of which are engaged with a spring pawl, a connector with an upper link and a lower within the shaft, and a handle with a button connected with the bottom of inner tube. While pushing the button, a slider of the umbrella will be released and to push the spring pawl inward to close and shorten automatically.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: October 22, 1991
    Inventors: Tseng Su, Yun c. Pon