Patents by Inventor Chiu-Chu Tseng

Chiu-Chu Tseng 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).

  • Publication number: 20100071994
    Abstract: The present invention is to provide a new multi-functional collapsible platform ladder of H shape, comprises a shelf rack, a pair telescopic ladders and a fixing framework, wherein the shelf rack are abutted and linked by a pair platform decks, and has hanger disposed at each distal outer ends thereof; the pair telescopic ladders are juxtaposed at each end of the shelf rack respectively with hanger of the shelf rack hooking on desired rung thereof; and the fixing framework comprises a pair foldable scaffolds, a pair joists and two pair tubular holders, which has a caster disposed thereof. By all foregoing parts, it can be transformed into H-shaped, ?-shaped or single telescopic ladder with multiple functions and features in height adjustment and collapsibility to achieve effects of easy transportation and saving storing space.
    Type: Application
    Filed: September 25, 2008
    Publication date: March 25, 2010
    Inventor: Chiu-Chu Tseng
  • Publication number: 20090056168
    Abstract: A shoe includes a first part wore by wearers and a second part which includes a C-shaped resilient plate which is fixed to an underside of the first part by its top. A first pin and a second pin are respectively connected to the front end and the rear end of the resilient plate. A base includes a front end which is pivotably connected to the first pin on the resilient plate and two lugs extend from the top of the rear end of the base. Each lug has an elongate slot and the second pin is movably engaged with the two elongate slots of the two lugs. The resilient plate is moved up and down when the second pin is moved within the elongate slots of the base.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 5, 2009
    Inventor: Chiu-Chu Tseng