Patents by Inventor Kang C. Yeh
Kang C. 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).
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Patent number: 8647105Abstract: An embossing system is provided for embossing at least a portion of a web comprising a first roll and at least a second roll. The first roll and second roll may define a first nip for embossing the web. At least one of the first roll and the second roll has elongated embossing elements extending substantially in the machine direction and optionally at least one of the first and second rolls has elongated embossing elements extending substantially in the cross-machine direction. At least one of the first roll and the second roll may also have perforate embossing elements extending substantially in the cross-machine direction that may or may not be elongated. The embossing elements are capable of imparting one or both of a cube embossing pattern or a perforate emboss on the web. In addition, the web may be creped with an undulatory creping blade.Type: GrantFiled: April 16, 2012Date of Patent: February 11, 2014Assignee: Georgia-Pacific Consumer Products LPInventors: Anthony O. Awofeso, Kang C. Yeh, Bruce W. Janda, Martin A. Hynnek, Gayln A. Schulz, Paul J. Ruthven, Ronald R. Reeb
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Publication number: 20120213879Abstract: An embossing system is provided for embossing at least a portion of a web comprising a first roll and at least a second roll. The first roll and second roll may define a first nip for embossing the web. At least one of the first roll and the second roll has elongated embossing elements extending substantially in the machine direction and optionally at least one of the first and second rolls has elongated embossing elements extending substantially in the cross-machine direction. At least one of the first roll and the second roll may also have perforate embossing elements extending substantially in the cross-machine direction that may or may not be elongated. The embossing elements are capable of imparting one or both of a cube embossing pattern or a perforate emboss on the web. In addition, the web may be creped with an undulatory creping blade.Type: ApplicationFiled: April 16, 2012Publication date: August 23, 2012Applicant: Georgia-Pacific Consumer Products LPInventors: Anthony O. Awofeso, Kang C. Yeh, Bruce W. Janda, Martin A. Hynnek, Galyn A. Schulz, Paul J. Ruthven, Ronald R. Reeb
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Patent number: 8178025Abstract: An embossing system is provided for embossing at least a portion of a web comprising a first roll and at least a second roll. The first roll and second roll may define a first nip for embossing the web. At least one of the first roll and the second roll has elongated embossing elements extending substantially in the machine direction and optionally at least one of the first and second rolls has elongated embossing elements extending substantially in the cross-machine direction. At least one of the first roll and the second roll may also have perforate embossing elements extending substantially in the cross-machine direction that may or may not be elongated. The embossing elements are capable of imparting one or both of a cube embossing pattern or a perforate emboss on the web. The web may be a cellulosic fibrous web, a portion of which is lignin-rich, high coarseness fiber having generally tubular fiber configuration. In addition, the web may be creped with an undulatory creping blade.Type: GrantFiled: December 3, 2004Date of Patent: May 15, 2012Assignee: Georgia-Pacific Consumer Products LPInventors: Anthony O. Awofeso, Kang C. Yeh, Bruce W. Janda, Martin A. Hynnek, Gayln A. Schulz, Paul J. Ruthven, Ronald R. Reeb
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Patent number: 7731819Abstract: An absorbent sheet of cellulosic fiber typically includes at least about 15% by weight of high coarseness, generally tubular and lignin-rich cellulosic fiber based on the combined weight of cellulosic fiber in the sheet. Lignin-rich high coarseness, generally tubular fiber employed may be characterized by a coarseness of at least about 20 mg/100 m and an average length of 2 mm. The sheet is prepared by way of a process including applying a dewatered web to a heated rotating cylinder and creping the web from the heated cylinder with an undulatory creping blade. Preferred lignin-rich, high coarseness, generally tubular fibers include thermo and chemi mechanical pulps. A particularly preferred embodiment is a sheet including at least about 15% BCTMP.Type: GrantFiled: October 13, 2009Date of Patent: June 8, 2010Assignee: Georgia - Pacific Consumer Products LPInventors: Anthony O. Awofeso, Kang C. Yeh, Ronald R. Reeb, Henry Chou, Bruce W. Janda
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Publication number: 20100032113Abstract: An absorbent sheet of cellulosic fiber typically includes at least about 15% by weight of high coarseness, generally tubular and lignin-rich cellulosic fiber based on the combined weight of cellulosic fiber in the sheet. Lignin-rich high coarseness, generally tubular fiber employed may be characterized by a coarseness of at least about 20 mg/100 m and an average length of 2 mm. The sheet is prepared by way of a process including applying a dewatered web to a heated rotating cylinder and creping the web from the heated cylinder with an undulatory creping blade. Preferred lignin-rich, high coarseness, generally tubular fibers include thermo and chemi mechanical pulps. A particularly preferred embodiment is a sheet including at least about 15% BCTMP.Type: ApplicationFiled: October 13, 2009Publication date: February 11, 2010Inventors: Anthony O. Awofeso, Kang C. Yeh, Ronald R. Reeb, Henry Chou, Bruce W. Janda
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Patent number: 7622020Abstract: An absorbent sheet of cellulosic fiber typically includes at least about 15% by weight of high coarseness, generally tubular and lignin-rich cellulosic fiber based on the combined weight of cellulosic fiber in the sheet. Lignin-rich high coarseness, generally tubular fiber employed may be characterized by a coarseness of at least about 20 mg/100 m and an average length of 2 mm. The sheet is prepared by way of a process including applying a dewatered web to a heated rotating cylinder and creping the web from the heated cylinder with an undulatory creping blade. Preferred lignin-rich, high coarseness, generally tubular fibers include thermo and chemi mechanical pulps. A particularly preferred embodiment is a sheet including at least about 15% BCTMP.Type: GrantFiled: April 2, 2003Date of Patent: November 24, 2009Assignee: Georgia-Pacific Consumer Products LPInventors: Anthony O. Awofeso, Kang C. Yeh, Ronald R. Reeb, Henry Chou, Bruce W. Janda
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Patent number: 7585389Abstract: Fabric-creped absorbent sheet has an MD bending length of about 3.5 cm or more as well as an absorbency of about 3 g/g or more. The sheet is preferably produced without through drying or dry creping and is a low-dust product especially suitable for automatic towel dispensers.Type: GrantFiled: June 12, 2006Date of Patent: September 8, 2009Assignee: Georgia-Pacific Consumer Products LPInventors: Kang C. Yeh, Stephen J. McCullough, Hung Liang Chou, Mark S. Hunter, Thomas E. Lyse, Ronald R. Reeb
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Patent number: 7585388Abstract: Fabric-creped absorbent sheet has an MD bending length of about 3.5 cm or more as well as an absorbency of about 3 g/g or more. The sheet is preferably produced without through drying or dry creping and is a low-dust product especially suitable for automatic towel dispensers.Type: GrantFiled: June 12, 2006Date of Patent: September 8, 2009Assignee: Georgia-Pacific Consumer Products LPInventors: Kang C. Yeh, Stephen J. McCullough, Hung Liang Chou, Mark S. Hunter, Thomas E. Lyse, Ronald R. Reeb
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Patent number: 7118796Abstract: A multi-ply tissue includes a first cellulosic embossed ply having an emboss pattern applied over a portion of its surface and a second cellulosic embossed ply of tissue. The first ply is contact laminated to the second ply so that the primary adhesion between the plies of tissue is the result of contact between cellulosic fibers. The first and second plies contact one another in contact areas, with the contact areas between the first and second plies defining compliant voids. The contact areas between the first ply and the second ply are elongated and/or rounded contact areas.Type: GrantFiled: December 3, 2004Date of Patent: October 10, 2006Assignee: Fort James CorporationInventors: Gayln A. Schulz, Gary L. Worry, Kang C. Yeh, Thomas N. Kershaw
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Publication number: 20030196772Abstract: An absorbent sheet of cellulosic fiber typically includes at least about 15% by weight of high coarseness, generally tubular and lignin-rich cellulosic fiber based on the combined weight of cellulosic fiber in the sheet. Lignin-rich high coarseness, generally tubular fiber employed may be characterized by a coarseness of at least about 20 mg/100 m and an average length of 2 mm. The sheet is prepared by way of a process including applying a dewatered web to a heated rotating cylinder and creping the web from the heated cylinder with an undulatory creping blade. Preferred lignin-rich, high coarseness, generally tubular fibers include thermo and chemi mechanical pulps. A particularly preferred embodiment is a sheet including at least about 15% BCTMP.Type: ApplicationFiled: April 2, 2003Publication date: October 23, 2003Inventors: Anthony O. Awofeso, Kang C. Yeh, Ronald R. Reeb, Henry Chou, Bruce W. Janda