Patents by Inventor Kang Chang Yeh

Kang Chang Yeh 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: 7494563
    Abstract: An absorbent cellulosic sheet having variable local basis weight includes a papermaking-fiber reticulum provided with (i) a plurality of cross-machine direction (CD) extending, fiber-enriched pileated regions of relatively high local basis weight interconnected by (ii) a plurality of elongated densified regions of compressed papermaking fibers. The elongated densified regions have relatively low local basis weight and are generally oriented along the machine direction (MD) of the sheet and have an MD/CD aspect ratio of at least 1.5. The products are most preferably prepared by way of a compactive dewatering/wet crepe process.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: February 24, 2009
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Steven L. Edwards, Guy H. Super, Stephen J. McCullough, Ronald R. Reeb, Hung Liang Chou, Kang Chang Yeh, John H. Dwiggins, Frank D. Harper
  • Publication number: 20080264589
    Abstract: A method of manufacturing absorbent sheet is directed to a wet-press/fabric-crepe process wherein add-on of adhesive to the Yankee surface is at relatively low levels, yet sheet transfer is maintained and production increased. Materials are selected and process parameters are controlled such that a paper machine can be operated for at least 4 hours before the Yankee coating needs to be stripped. Preferably, average increase in Yankee hood temperature is less than 1° F./minute during a production interval.
    Type: Application
    Filed: February 19, 2008
    Publication date: October 30, 2008
    Applicant: GEORGIA-PACIFIC CONSUMER PRODUCTS LP.
    Inventors: Hung Liang Chou, Mark S. Hunter, Kang Chang Yeh
  • Publication number: 20080107698
    Abstract: A cellulosic sheet for paper towel includes an anti-microbial lotion on the towel which increases water absorbency times (WAR) to further promote lotion transfer to the skin and increase lotion transfer effectiveness.
    Type: Application
    Filed: November 8, 2006
    Publication date: May 8, 2008
    Applicant: FORT JAMES CORPORATION
    Inventors: Phuong V. Luu, Kang Chang Yeh
  • Publication number: 20070204966
    Abstract: An improved method of controlling build-up of adhesive coating on a Yankee drying cylinder preferably includes intermittently: (a) increasing the add-on rate of resinous adhesive to the drying cylinder substantially above the steady-state add-on rate; (b) segregating the absorbent sheet product produced while the add-on rate of resinous adhesive to the drying cylinder is elevated above the steady-state add-on rate from absorbent sheet product accumulated during steady-state operation; and (c) while the add-on rate of resinous adhesive to the drying cylinder is increased above the steady-state add-on rate, stripping at least a portion of the adhesive coating from the drying cylinder with a cleaning doctor.
    Type: Application
    Filed: February 26, 2007
    Publication date: September 6, 2007
    Applicant: GEORGIA-PACIFIC CONSUMER PRODUCTS LP
    Inventors: Hung Liang Chou, Kang Chang Yeh
  • Patent number: 7252741
    Abstract: A method of forming a cellulosic web is discussed, the product of which may, for example, possess at least one of increased softness, strength, and absorbency. The method measures the total anionic charge and controls the net charge of an aqueous stream.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: August 7, 2007
    Assignee: Georgia-Pacific Consumer Products LP
    Inventors: Kang Chang Yeh, Gary L. Worry, Thomas N. Kershaw, Henry S. Ostrowski
  • Patent number: 6998016
    Abstract: The present invention is a through-air-drying process for producing a fibrous web that possesses not only softness and absorbency but also strength. The method of the present invention monitors and controls the overall charge in the headbox.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: February 14, 2006
    Assignee: Fort James Corporation
    Inventors: Kang Chang Yeh, Gary L. Worry, Thomas N. Kershaw, Henry S. Ostrowski
  • Patent number: 6419789
    Abstract: The present invention is a through-air-drying process for producing a fibrous web that possesses not only softness and absorbency but also strength. The method of the present invention monitors and controls the overall charge in the headbox.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: July 16, 2002
    Assignee: Fort James Corporation
    Inventors: Kang Chang Yeh, Gary L. Worry, Thomas N. Kershaw, Henry S. Ostrowski
  • Publication number: 20020074100
    Abstract: The present invention is a through-air-drying process for producing a fibrous web that possesses not only softness and absorbency but also strength. The method of the present invention monitors and controls the overall charge in the headbox.
    Type: Application
    Filed: December 20, 2001
    Publication date: June 20, 2002
    Applicant: James River Corporation
    Inventors: Kang Chang Yeh, Gary L. Worry, Thomas N. Kershaw, Henry S. Ostrowski