Patents by Inventor Ya Ching Yang

Ya Ching Yang 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: 7788759
    Abstract: A standing duster article consisting of a dusting portion and a spiral handle, wherein the dusting portion is comprised of a segmented intermingled yarn layer, a hot-meltable nonwoven fabric layer, a smooth nonwoven fabric layer, and a nonwoven/woven fabric layer; the segmented intermingled yarn layer is interleaved between the hot-meltable nonwoven fabric layer and the smooth nonwoven fabric layer; the nonwoven/woven fabric layer is further superimposed on the smooth nonwoven fabric layer; a hot-pressing process is carried out to fuse the segmented intermingled yarn layer, the hot-meltable nonwoven fabric layer, the smooth nonwoven fabric layer, and the nonwoven/woven fabric layer; the resulted lamination after fusion is cut by a cutting apparatus, so as to generate a slit in the middle to form the dusting portion which is easy to be folded to form two elongated openings; and a spiral end of the spiral handle is inserted into the openings to form the duster article with the spiral dusting portion.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: September 7, 2010
    Inventors: Ya Ching Yang, Yi-Jun Pan
  • Patent number: 7681275
    Abstract: The present invention relates to a dust cloth texture having fiber bundles or bundles of intermingled yarn for dusting formed on a cleaning side of a piece of nonwoven cloth by locally press-fusing. The dust cloth texture is characterized by that a plurality of press-fusing lines are formed on the dust cloth by successively splicing a plurality of closed geometric frames, whereby the lengths and directions of the fiber bundles or intermingled yarn extending outside the fusing frames are varied with the geometric shapes and line angles of the fusing lines, such that the freedom of distribution of the fibers or intermingled yarn is increased and the dusting effect is also optimized. Meanwhile, the fiber bundles or yarn inside the fusing frames are undulated to further enhance the cleaning effect of the dust cloth.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: March 23, 2010
    Inventors: Pai Yung Lin, Ya Ching Yang