Patents by Inventor Chen Changda

Chen Changda 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).

  • Collapsible lampshade
    Patent number: 6808294
    Abstract: A lampshade having an assembled state and a collapsed state includes a first ring, a second ring spaced apart from the first ring when the lampshade is in the assembled state, and a first fabric covering interconnecting the first and second rings. A third ring is located adjacent the first ring when the lampshade is in the assembled state. A plurality of supports are connected between the second ring and the third ring. Each support has a first end portion movably connected to the second ring and a second end portion movably connected to the third ring. The supports hold the second and third rings spaced from each other. The supports urge the third ring into engagement with the first ring thereby to hold the first ring spaced apart from the second ring.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: October 26, 2004
    Assignee: The L. D. Kichler Co.
    Inventors: Bruce Raymond Pazula, Chen Changda, Kevin Lee Von Kluck
  • Collapsible lampshade
    Publication number: 20040076012
    Abstract: A lampshade having an assembled state and a collapsed state includes a first ring, a second ring spaced apart from the first ring when the lampshade is in the assembled state, and a first fabric covering interconnecting the first and second rings. A third ring is located adjacent the first ring when the lampshade is in the assembled state. A plurality of supports are connected between the second ring and the third ring. Each support has a first end portion movably connected to the second ring and a second end portion movably connected to the third ring. The supports hold the second and third rings spaced from each other. The supports urge the third ring into engagement with the first ring thereby to hold the first ring spaced apart from the second ring.
    Type: Application
    Filed: October 18, 2002
    Publication date: April 22, 2004
    Inventors: Bruce Raymond Pazula, Chen Changda, Kevin Lee Von Kluck