Patents by Inventor Shawn Xiang Wu
Shawn Xiang Wu 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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Publication number: 20140364262Abstract: A V-ribbed belt that includes a ribbed surface covered with fabric is provided. The fabric is stretchable in two predetermined directions. A method for manufacturing the V-ribbed belt is also provided. The method includes placing a belt matrix about a mandrel, placing a fabric about the external circumference of the belt matrix which wraps around the mandrel, placing the mandrel inside a shell having a plurality of grooves on the internal circumference, expanding the belt matrix and the fabric toward the internal circumference of the shell and thus pressing the fabric onto the internal circumference having the multi-ribbed structure, and curing the belt matrix with the fabric. The fabric is stretchable to accommodate itself to the multi-ribbed structure.Type: ApplicationFiled: August 14, 2014Publication date: December 11, 2014Inventors: Masahiro Mori, Min Gao, Lance C. Hall, Shawn Xiang Wu
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Patent number: 8888635Abstract: A V-ribbed belt that includes a ribbed surface covered with fabric is provided. The fabric is stretchable in two predetermined directions. A method for manufacturing the V-ribbed belt is also provided. The method includes placing a belt matrix about a mandrel, placing a fabric about the external circumference of the belt matrix which wraps around the mandrel, placing the mandrel inside a shell having a plurality of grooves on the internal circumference, expanding the belt matrix and the fabric toward the internal circumference of the shell and thus pressing the fabric onto the internal circumference having the multi-ribbed structure, and curing the belt matrix with the fabric. The fabric is stretchable to accommodate itself to the multi-ribbed structure.Type: GrantFiled: March 12, 2010Date of Patent: November 18, 2014Assignee: The Gates CorporationInventors: Masahiro Mori, Min Gao, Lance C. Hall, Shawn Xiang Wu
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Publication number: 20140135161Abstract: A V-ribbed belt that includes a ribbed surface covered with fabric is provided. The fabric is stretchable in two predetermined directions. A method for manufacturing the V-ribbed belt is also provided. The method includes placing a belt matrix about a mandrel, placing a fabric about the external circumference of the belt matrix which wraps around the mandrel, placing the mandrel inside a shell having a plurality of grooves on the internal circumference, expanding the belt matrix and the fabric toward the internal circumference of the shell and thus pressing the fabric onto the internal circumference having the multi-ribbed structure, and curing the belt matrix with the fabric. The fabric is stretchable to accommodate itself to the multi-ribbed structure.Type: ApplicationFiled: January 20, 2014Publication date: May 15, 2014Applicant: The Gates CorporationInventors: Masahiro Mori, Min Gao, Lance C. Hall, Shawn Xiang Wu
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Patent number: 8632650Abstract: A V-ribbed belt that includes a ribbed surface covered with fabric is provided. The fabric is stretchable in two predetermined directions. A method for manufacturing the V-ribbed belt is also provided. The method includes placing a belt matrix about a mandrel, placing a fabric about the external circumference of the belt matrix which wraps around the mandrel, placing the mandrel inside a shell having a plurality of grooves on the internal circumference, expanding the belt matrix and the fabric toward the internal circumference of the shell and thus pressing the fabric onto the internal circumference having the multi-ribbed structure, and curing the belt matrix with the fabric. The fabric is stretchable to accommodate itself to the multi-ribbed structure.Type: GrantFiled: March 12, 2010Date of Patent: January 21, 2014Assignee: The Gates CorporationInventors: Masahiro Mori, Min Gao, Lance C. Hall, Shawn Xiang Wu
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Patent number: 8298665Abstract: A power transmission belt comprising a polyester tensile cord having a heat shrinkage at 100° C. of less than 1% and/or a heat shrinkage at 150° C. of less than about 1.5% and/or a dimensional stability index of less than about 6%. The belt has a heat shrinkage after 24 hours at 100° C. of less than 1%. The polyester may be that sold under the trade name A360 or A363 by Performance Fibers, Inc. or equivalent polyethylene terephthalate. The tensile cord is particularly suited for use in V-belts for variable speed drives.Type: GrantFiled: June 24, 2008Date of Patent: October 30, 2012Assignee: The Gates CorporationInventor: Shawn Xiang Wu
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Patent number: 8197372Abstract: A power transmission belt comprising a body comprising an elastomeric material and having tensile members running in a longitudinal direction, the body having a pulley engaging region having a profile; the pulley-engaging region comprising a fibrous nonwoven fabric material; characterized in that the fibers of the nonwoven material comprise acrylic fibers. The acrylic fibers are preferably micro-fibers of less than about 1.5 dpf and having an average diameter of 13.5 microns or less and an average length of about 1 to about 10 mm. The nonwoven material may be commingled with the elastomeric material in the pulley engaging region. Up to about 75% by weight of the fibers of the nonwoven material may comprise non-acrylic fibers such as other synthetic fibers, natural fibers, or cellulosic fibers.Type: GrantFiled: April 7, 2006Date of Patent: June 12, 2012Assignee: The Gates CorporationInventors: Shawn Xiang Wu, Lance C. Hall
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Patent number: 8057344Abstract: A power transmission belt with an embedded load carrier cord having a plurality of yarns and possessing a first twist corresponding to a first twist multiplier and a first twist direction, and possessing a second twist corresponding to a second twist multiplier in the opposite direction, such that the ratio of the first twist multiplier to the second twist multiplier is greater than about 1.5, and at least one yarn includes fibers of polyketone or polyvinylalcohol.Type: GrantFiled: July 3, 2007Date of Patent: November 15, 2011Assignee: The Gates CorporationInventor: Shawn Xiang Wu
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Publication number: 20110003659Abstract: A fabric for reinforcing a power transmission belt including fibers of polyarylene sulfide and a belt utilizing the fabric. The fabric may have textured or elastic core wrapped stretch yarns in the longitudinal direction. Longitudinal yarns may include PPS and textured transverse yarns include nylon. Yarns may include blends of high performance fibers and nylon or other fibers.Type: ApplicationFiled: July 2, 2010Publication date: January 6, 2011Applicant: The Gates CorporationInventors: Shawn Xiang WU, Clifford WALKER, Kevin WARD
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Publication number: 20100173740Abstract: A V-ribbed belt that includes a ribbed surface covered with fabric is provided. The fabric is stretchable in two predetermined directions. A method for manufacturing the V-ribbed belt is also provided. The method includes placing a belt matrix about a mandrel, placing a fabric about the external circumference of the belt matrix which wraps around the mandrel, placing the mandrel inside a shell having a plurality of grooves on the internal circumference, expanding the belt matrix and the fabric toward the internal circumference of the shell and thus pressing the fabric onto the internal circumference having the multi-ribbed structure, and curing the belt matrix with the fabric. The fabric is stretchable to accommodate itself to the multi-ribbed structure.Type: ApplicationFiled: March 12, 2010Publication date: July 8, 2010Applicant: THE GATES CORPORATIONInventors: Masahiro Mori, Min Gao, Lance C. Hall, Shawn Xiang Wu
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Publication number: 20100167860Abstract: A V-ribbed belt that includes a ribbed surface covered with fabric is provided. The fabric is stretchable in two predetermined directions. A method for manufacturing the V-ribbed belt is also provided. The method includes placing a belt matrix about a mandrel, placing a fabric about the external circumference of the belt matrix which wraps around the mandrel, placing the mandrel inside a shell having a plurality of grooves on the internal circumference, expanding the belt matrix and the fabric toward the internal circumference of the shell and thus pressing the fabric onto the internal circumference having the multi-ribbed structure, and curing the belt matrix with the fabric. The fabric is stretchable to accommodate itself to the multi-ribbed structure.Type: ApplicationFiled: March 12, 2010Publication date: July 1, 2010Applicant: THE GATES CORPORATIONInventors: Masahiro Mori, Min Gao, Lance C. Hall, Shawn Xiang Wu
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Publication number: 20090011883Abstract: A power transmission belt comprising a polyester tensile cord having a heat shrinkage at 100° C. of less than 1% and/or a heat shrinkage at 150° C. of less than about 1.5% and/or a dimensional stability index of less than about 6%. The belt has a heat shrinkage after 24 hours at 100° C. of less than 1%. The polyester may be that sold under the trade name A360 or A363 by Performance Fibers, Inc. or equivalent polyethylene terephthalate. The tensile cord is particularly suited for use in V-belts for variable speed drives.Type: ApplicationFiled: June 24, 2008Publication date: January 8, 2009Inventor: Shawn Xiang WU
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Patent number: 7254934Abstract: A power transmission belt with an embedded load carrier cord having a plurality of yarns and possessing a first twist corresponding to a first twist multiplier and a first twist direction, and possessing a second twist corresponding to a second twist multiplier in the opposite direction, such that the ratio of the first twist multiplier to the second twist multiplier is greater than about 1.5. The belt may be a multi-v-ribbed belt. The load carrying cord may have a plurality of twisted yarns having a first yarn twist and a second cord twist in a direction opposite the yarn twist and a ratio of yarn twist to cord twist from about 1.5:1 to about 4:1.Type: GrantFiled: March 24, 2005Date of Patent: August 14, 2007Assignee: The Gates CorporationInventor: Shawn Xiang Wu
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Patent number: 7201688Abstract: An endless power transmission belt comprising load carrier cord comprising a cord formed from a plurality of strands, wherein the strands comprise fibers of para-aramid and polyvinylpyrrolidone (PVP); and a method for increasing the flexural fatigue resistance and durability of an endless belt, comprising the step of selecting for the belt's load carrier cord a yarn comprising a fiber of para-aramid and PVP.Type: GrantFiled: March 9, 2004Date of Patent: April 10, 2007Assignee: The Gates CorporationInventor: Shawn Xiang Wu