Patents by Inventor William Cheng Uy

William Cheng Uy 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: 20080235861
    Abstract: A bidet assembly comprises at least one jet nozzle, connected to a multi-port tube fitting, which is connected to a water supply tube, which may comprise of four sections, and which is connected to the toilet bowl refill nipple, and a non-permanent mounting means. Said bidet assembly is a one-size-fits-all for retrofitting toilets of all sizes and shapes, has no moving parts, valves or controls and which provides fine jet streams of cool water spray—even from chilly cold water source—for cleansing a user's private parts during a toilet bowl refill cycle. Said bidet assembly is mounted inside and behind a toilet tank and inside a bowl and, therefore, is completely hidden from view and keeps water from splashing outside of the bowl. Said bidet assembly can be mounted or removed without tools, in less than two minutes and leaves neither mars nor damage on a toilet.
    Type: Application
    Filed: October 30, 2007
    Publication date: October 2, 2008
    Inventor: William Cheng Uy
  • Publication number: 20080155739
    Abstract: A bidet assembly comprises at least one jet nozzle, connected to a multi-port tube fitting, which is connected to a water supply tube, which may comprise of four sections, and which is connected to the toilet bowl refill nipple, and a non-permanent mounting means. Said bidet assembly is a one-size-fits-all for retrofitting toilets of all sizes and shapes, has no moving parts, valves or controls and which provides fine jet streams of cool water spray - even from chilly cold water source - for cleansing a user's private parts during a toilet bowl refill cycle. Said bidet assembly is mounted inside and behind a toilet tank and inside a bowl and, therefore, is completely hidden from view and keeps water from splashing outside of the bowl. Said bidet assembly can be mounted or removed without tools, in less than two minutes and leaves neither mars nor damage on a toilet.
    Type: Application
    Filed: April 2, 2007
    Publication date: July 3, 2008
    Inventor: William Cheng Uy
  • Publication number: 20080155738
    Abstract: A bidet assembly for toilets comprising a non-permanent mounting means, such as a “C” clamp device and a long stiff wedging member with spring-back property, one or more nozzles mounted inside a toilet bowl under the rim lip, and a water supply tube that connects directly to the bowl refill nipple on a ballcock. Said multi-parts bidet assembly forms one integral tubing unit. Said bidet assembly can be mounted or removed, without tools, in 2 minutes or less and leaves no mar or damage on a toilet. Said bidet assembly is hidden from view, provides clean water for cleansing a user's private parts during the refill cycle and keeps water from splashing out of a toilet, and has no moving parts or controls of any kind to manipulate. Said bidet assembly can retrofit toilets of any size and shape and can be fabricated from commonly available merchandise.
    Type: Application
    Filed: January 3, 2007
    Publication date: July 3, 2008
    Inventor: William Cheng Uy
  • Publication number: 20080155740
    Abstract: A bidet assembly comprises at least one jet nozzle, connected to a multi-port tube fitting, which is connected to a water supply tube, which may comprise of four sections, and which is connected to the toilet bowl refill nipple, and a non-permanent mounting means. Said bidet assembly is a one-size-fits-all for retrofitting toilets of all sizes and shapes, has no moving parts, valves or controls and which provides fine jet streams of cool water spray—even from chilly cold water source—for use in cleansing a user's private parts during a toilet tank refill cycle. Said bidet assembly is mounted inside and behind a toilet tank and inside a bowl and, therefore, is completely hidden from view and keeps water from splashing outside of the bowl. Said bidet assembly can be mounted or removed without tools, in less than two minutes and leaves neither mars nor damage on a toilet.
    Type: Application
    Filed: July 20, 2007
    Publication date: July 3, 2008
    Inventor: William Cheng Uy
  • Publication number: 20080155741
    Abstract: A bidet assembly comprises at least one jet nozzle, connected to a multi-port tube fitting, which is connected to a water supply tube, which may comprise of four sections, and which is connected to the toilet bowl refill nipple, and a non-permanent mounting means. Said bidet assembly is a one-size-fits-all for retrofitting toilets of all sizes and shapes, has no moving parts, valves or controls and which provides fine jet streams of cool water spray—even from chilly cold water source—for use in cleansing a user's private parts during a toilet tank refill cycle. Said bidet assembly is mounted inside and behind a toilet tank and inside a bowl and, therefore, is completely hidden from view and keeps water from splashing outside of the bowl. Said bidet assembly can be mounted or removed without tools, in less than two minutes and leaves neither mars nor damage on a toilet.
    Type: Application
    Filed: September 24, 2007
    Publication date: July 3, 2008
    Inventor: William Cheng Uy
  • Patent number: 6919130
    Abstract: The processes and apparatus of the present invention concerns melt spinning high viscosity fluoropolymers into single filaments or multi-filament yarns at high spinning speeds, the melt spinning being carried out at a temperature which is at least 90° C. greater than the melting point of the polymer or in the case of perfluoropolymer, at a temperature of at least 450° C., and the yarns produced by the process, wherein the filaments can exhibit an orientation at the surface of the filament no greater than at the core of the filament.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: July 19, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Edward William Tokarsky, William Cheng Uy
  • Patent number: 6841243
    Abstract: The processes and apparatus of the present invention concerns melt spinning high viscosity fluoropolymers into single filaments or multi-filament yarns at high spinning speeds, the melt spinning being carried out at a temperature which is at least 90° C. greater than the melting point of the polymer or in the case of perfluoropolymer, at a temperature of at least 450° C., and the yarns produced by the process, wherein the filaments can exhibit an orientation at the surface of the filament no greater than at the core of the filament.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: January 11, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Edward William Tokarsky, William Cheng Uy, Robert Thomas Young
  • Publication number: 20040219358
    Abstract: The processes and apparatus of the present invention concerns melt spinning high viscosity fluoropolymers into single filaments or multi-filament yarns at high spinning speeds, the melt spinning being carried out at a temperature which is at least 90° C. greater than the melting point of the polymer or in the case of perfluoropolymer, at a temperature of at least 450° C., and the yarns produced by the process, wherein the filaments can exhibit an orientation at the surface of the filament no greater than at the core of the filament.
    Type: Application
    Filed: May 26, 2004
    Publication date: November 4, 2004
    Inventors: Edward William Tokarsky, William Cheng Uy
  • Publication number: 20040058152
    Abstract: The processes and apparatus of the present invention concerns melt spinning high viscosity fluoropolymers into single filaments or multifilament yarns at high spinning speeds, the melt spinning being carried out at a temperature which is at least 90° C. greater than the melting point of the polymer or in the case of perfluoropolymer, at a temperature of at least 450° C., and the yarns produced by the process, wherein the filaments can exhibit an orientation at the surface of the filament no greater than at the core of the filament.
    Type: Application
    Filed: July 21, 2003
    Publication date: March 25, 2004
    Inventors: Edward William Tokarsky, William Cheng Uy, Robert Thomas Young
  • Patent number: 6667097
    Abstract: The processes and apparatus of the present invention concerns melt spinning high viscosity fluoropolymers into single filaments or multi-filament yams at high spinning speeds, the melt spinning being carried out at a temperature which is at least 90° C. greater than the melting point of the polymer or in the case of perfluoropolymer, at a temperature of at least 450° C., and the yams produced by the process, wherein the filaments can exhibit an orientation at the surface of the filament no greater than at the core of the filament.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: December 23, 2003
    Inventors: Edward William Tokarsky, William Cheng Uy
  • Publication number: 20030175513
    Abstract: The processes and apparatus of the present invention concerns melt spinning high viscosity fluoropolymers into single filaments or multi-filament yarns at high spinning speeds, the melt spinning being carried out at a temperature which is at least 90° C. greater than the melting point of the polymer or in the case of perfluoropolymer, at a temperature of at least 450° C., and the yarns produced by the process, wherein the filaments can exhibit an orientation at the surface of the filament no greater than at the core of the filament.
    Type: Application
    Filed: September 10, 2002
    Publication date: September 18, 2003
    Inventors: Edward William Tokarsky, William Cheng Uy
  • Publication number: 20030119991
    Abstract: This invention relates to fluoropolymer fibers and films which can be modified by cationic agents, such as cationic dyes. The fiber or film comprises a blend of a first and a second copolymer, or it comprises a terpolymer, the blend or terpolymer having (1) an acid or ionic functionality provided by a pendant group represented by the formula —(O—CF2CFR)aO—CF2CFR′SO3−Z+, wherein R and R′ are independently selected from F, Cl or a perfluorinated alkyl group having 1 to 10 carbon atoms, a=0, 1 or 2, and Z+ is H+, an alkali metal cation, or a cation derived from a compound selected from the group consisting of a cationic dye, a cationic whitener, a cationic flame retardant, a cationic antistatic agent, and mixtures thereof, and (2) a larger amount of a fluoroalkylvinylether, a fluoroalkene, or ethylene functionality. Such fibers and films are useful in various consumer goods where the product is desirably colored, whitened, antistatic, or flame retardant.
    Type: Application
    Filed: December 3, 2002
    Publication date: June 26, 2003
    Inventor: William Cheng Uy
  • Patent number: 6436533
    Abstract: The present invention relates to melt spun fibers prepared from blends of poly(tetrafluoroethylene) and poly(tetrafluoroethylene-co-perfluoro-alkylvinyl ether).
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: August 20, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Glenn William Heffner, William Cheng Uy, Martin Gerald Wagner
  • Publication number: 20020079610
    Abstract: The processes and apparatus of the present invention concerns melt spinning high viscosity fluoropolymers into single filaments or multi-filament yarns at high spinning speeds, the melt spinning being carried out at a temperature which is at least 90° C. greater than the melting point of the polymer or in the case of perfluoropolymer, at a temperature of at least 450° C., and the yarns produced by the process, wherein the filaments exhibit a greater axial orientation in the center of the filament than at the surface.
    Type: Application
    Filed: August 2, 2001
    Publication date: June 27, 2002
    Inventors: William Cheng Uy, Edward William Tokarsky
  • Publication number: 20020061398
    Abstract: The present invention relates to melt spun fibers prepared from blends of poly(tetrafluoroethylene) and poly(tetrafluoroethylene-co-perfluoro-alkylvinyl ether).
    Type: Application
    Filed: June 28, 2001
    Publication date: May 23, 2002
    Inventors: Glenn William Heffner, William Cheng Uy, Martin Gerald Wagner
  • Patent number: 6207275
    Abstract: This invention pertains to melt spun fibers of copolymers formed from tetra-fluoro ethylene and perfluorovinyl monomers and a process for their formation. In the process of this invention fibers exhibiting high strength and low shrinkage are drawn from the melt at SSFs of at least 500×.
    Type: Grant
    Filed: January 4, 2000
    Date of Patent: March 27, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Glenn William Heffner, William Cheng Uy, Martin Gerald Wagner
  • Patent number: 6048481
    Abstract: This invention pertains to melt spun fibers of copolymers formed from tetra-fluoro ethylene and perfluorovinyl monomers and a process for their formation. In the process of this invention fibers exhibiting high strength and low shrinkage are drawn from the melt at SSFs of at least 500.times..
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: April 11, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Glenn William Heffner, William Cheng Uy, Martin Gerald Wagner
  • Patent number: 5750064
    Abstract: The disclosed invention relates to a process wherein zein fibers are prepared by contacting zein with a volatile solvent system and dry spinning into a gaseous atmosphere. This process obviates the need for environmentally unfriendly alkaline solutions and acid coagulating baths.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: May 12, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: William Cheng Uy
  • Patent number: 5724885
    Abstract: An improved spatter shielding and vapor venting device for a frying pan comprising a transparent lid to enable visual observation of cooking, a peripheral venting gap to release generated fumes and vapors, a vertical hollow cylindrical wall to rapidly return condensed oil to frying pan, a handle to hold the device steady, a peripheral horizontal flange and size expansion adapter to facilitate placement on rims of frying pans of varying sizes, a vertical cylindrical flange to restrict lateral motion and to shield the contact area between the horizontal flange and frying pan rim, a vertical window opening for the introduction, removal, stirring and turning over of food, a hands-free opening and automatic closing window cover means to effectively shield the window opening even while performing said cooking operations, a loop-and-pin hinged system to facilitate stuck-proof withdrawal of inserted instrument through said window opening.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: March 10, 1998
    Inventor: William Cheng Uy
  • Patent number: RE36072
    Abstract: A spatter shielding and vapor venting device for a frying pan comprising a transparent lid to enable visual observation of cooking, a peripheral venting gap to release generated fumes and vapors, a vertical hollow cylindrical wall to rapidly return condensed oil to frying pan, a handle to hold the device steady, a horizontal flange to facilitate placement on rims of frying pans of varying sizes, a vertical cylindrical flange to restrict lateral motion and to shield the contact area between the horizontal flange and frying pan rim, a vertical window opening for the introduction, removal, stirring and turning over of food, a hands-free opening and automatic closing window cover means to effectively shield the window opening even while performing said cooking operations.
    Type: Grant
    Filed: November 1, 1996
    Date of Patent: February 2, 1999
    Inventor: William Cheng Uy