Patents by Inventor Tuan Le

Tuan Le 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: 20170197233
    Abstract: A high throughput sorting device is disclosed. The device includes a first sorter and a second sorter, each of the first and second sorters having a plurality of cells each configured to support, carry, and deposit an item. The device can also include at least one shared chute extending below a portion of the first sorter and a portion of the second sorter. The at least one chute can be configured to receive an item deposited by each of the plurality of cells and transport the item to an endpoint.
    Type: Application
    Filed: January 11, 2017
    Publication date: July 13, 2017
    Inventors: Scott R. Bombaugh, Tuan A. Le, Charles P. McLellan, Christopher M. Stratton
  • Publication number: 20170152652
    Abstract: A flow diverter for diverting flow between a toilet bowl and a toilet tank, having: a body having an inlet, a first outlet and a second outlet; and a flow adjustment mechanism rotatable within the body to selectively divert different percentages of flow between the first outlet and the second outlet; and an air vent and diaphragm in the body to prevent a siphon flow from the first or second outlet back to the inlet.
    Type: Application
    Filed: February 7, 2017
    Publication date: June 1, 2017
    Applicant: FLUIDMASTER, INC.
    Inventor: Tuan LE
  • Patent number: 9469980
    Abstract: A toilet lever assembly, including: (a) a sleeve dimensioned to pass through a toilet tank wall; (b) a rotatable post extending through the sleeve; (c) a toilet flush handle mounted to the end of the rotatable post that is positioned outside of the toilet tank; (d) a nut received onto the end of the sleeve that is positioned outside of the toilet tank; and (e) a lever housing mounted to the end of the post that is positioned inside of the toilet tank, the lever housing comprising: (i) an actuator for moving a toilet lever to cause a flush when the post is rotated, and (ii) a biasing mechanism for rotating the post back to a neutral position.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: October 18, 2016
    Assignee: FLUIDMASTER, INC.
    Inventors: Tuan Le, Venkat Mallela, Can (Ken) Nguyen
  • Patent number: 9428897
    Abstract: A toilet sensor and actuator assembly, having: (a) an infrared sensor configured to detect the presence of an object at a far distance from a toilet; (b) an ultrasonic sensor configured to detect the presence of the object at a near distance from the toilet, wherein the ultrasonic sensor remains in a sleep mode until awakened by a signal from the infrared sensor that the infrared sensor has detected the presence of the object at the far distance; and (c) an actuator mechanism that flushes the toilet in response to a signal from the ultrasonic sensor that the ultrasonic sensor has detected the presence of the object at the near distance.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: August 30, 2016
    Assignee: Fluidmaster, Inc.
    Inventors: Tuan Le, Adam Sampson, Derres Catalano, Stewart Walton, Scott Valoff, Robb Milley
  • Publication number: 20160216875
    Abstract: Embodiments provide systems, methods and apparatus for a computer implemented graphical user interface (GUI) for monitoring and controlling an energy management system (EMS) in real time. The GUI includes a card carousel GUI control wherein the card carousel GUI control includes a plurality of cards arranged in a sequence, each card displaying a unique set of status information about related EMS parameters, wherein the unique set of status information of each card is concurrently visible. Numerous other aspects are provided.
    Type: Application
    Filed: September 30, 2015
    Publication date: July 28, 2016
    Inventors: Jo S. Soo, Jeff Walz, Tuan Le, Touhid Khan
  • Publication number: 20160168835
    Abstract: A toilet sensor and actuator assembly, having: (a) an infrared sensor configured to detect the presence of an object at a far distance from a toilet; (b) an ultrasonic sensor configured to detect the presence of the object at a near distance from the toilet, wherein the ultrasonic sensor remains in a sleep mode until awakened by a signal from the infrared sensor that the infrared sensor has detected the presence of the object at the far distance; and (c) an actuator mechanism that flushes the toilet in response to a signal from the ultrasonic sensor that the ultrasonic sensor has detected the presence of the object at the near distance.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 16, 2016
    Applicant: FLUIDMASTER, INC.
    Inventors: Tuan Le, Adam Sampson, Derres Cataiano, Stewart Walton, Scott Valoff, Robb Milley
  • Patent number: 9359752
    Abstract: A toilet flush valve that has a moveable buoyant float therein, wherein the float has an open bottom end to trap air therein and wherein the housing includes controls to selectively release air to allow the float to move upwardly therein to permit flushing. By timing when one or two air vents on the housing are open, the duration and volume of the flush can be controlled, with the buoyancy provided by the water lifting the float to open the flush valve. This provides a flushing system with minimal activation energy.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: June 7, 2016
    Assignee: Fluidmaster, Inc.
    Inventors: Tuan Le, Steve Cook, Adam Sampson
  • Patent number: 9348344
    Abstract: A flow valve that maintains a constant flow valve despite varying pressures at its inlet, comprising: (a) an elongated cage with alternating axially-extending pockets and ridges on its inner surface; and (b) an elongated generally conical shaped elastomeric sleeve received within the elongated cage; wherein the sleeve flexes outwardly at higher pressures, thereby decreasing the size of the flow channel between the sleeve and cage, thereby restricting flow to maintain constant flow valve despite varying inlet pressures.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: May 24, 2016
    Assignee: Fluidmaster, Inc.
    Inventors: Tuan Le, Jaime Berndt, Adam Sampson
  • Publication number: 20160097190
    Abstract: A leak prevention device is provided for use in operation with a fill valve with a fill valve arm in a toilet tank. The device may comprise a pivotable locking lever having a first portion positioned to pivot into and out of contact with the fill valve arm or an extension thereof. The fill valve arm affects actuation of the fill valve to modulate fluids from entering the toilet tank, wherein the pivotable locking lever is operable to contact or is capable of contacting the fill valve arm thereby prohibiting the operation of the fill valve.
    Type: Application
    Filed: October 2, 2014
    Publication date: April 7, 2016
    Applicant: FLUIDMASTER, INC.
    Inventors: Joseph HAN, Tuan Le
  • Publication number: 20160002903
    Abstract: A siphonic flush toilet system and method of priming the same having a toilet bowl assembly comprising at least one jet flush valve assembly and at least one rim valve; and bowl having a rim and a jet defining at least one jet channel. The bowl has a closed jet pathway to maintain the jet channel in a primed state with fluid from the jet flush valve assembly to prevent air from entering the closed jet pathway. Flush valves may have back-flow preventer mechanisms and/or at least partly flexible valve covers, including specific valve cover structures. Flush activation assemblies may have a flush activation bar connected to the pivot rod and/or an adjustable flush connector located between the pivot rod and the flush activation bar. A kit providing one or more flush activation elements is included. The kit elements may be usable with the toilet systems and methods described.
    Type: Application
    Filed: September 14, 2015
    Publication date: January 7, 2016
    Inventors: David Grover, Daigo Ishiyama, Christophe Bucher, Tuan Le, James McHale
  • Patent number: 9085715
    Abstract: The present invention relates to a process for assembling at least one zone of a first surface with at least one zone of a second surface or with a molecule of interest, comprising a step that consists in placing the said zone of the said first surface in contact with the said zone of the said second surface or with the said molecule of interest, the said zone of the said first surface bearing at least one radical and/or ionic species. The present invention also relates to a solid support whose surface bears at least one zone with at least one radical and/or ionic species, with at least one adhesion primer, or with at least one adhesion primer precursor, and to its various uses.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: July 21, 2015
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: Thomas Berthelot, Guy Deniau, Vincent Huc, Xuan Tuan Le, Fabien Nekelson, Sébastien Roussel, Pascal Viel
  • Patent number: 9075243
    Abstract: Embodiments of the present invention describe systems and methods for delivering ultrashort laser pulses through an optical fiber system with higher order mode fiber output and without pre-chirping. In one embodiment of the present invention, an all-fiber delivery system comprises a mode-locked solid-state or fiber laser for generating laser pulses in the 0.2 ?m to 1.3 ?m wavelength range, a single mode fiber with normal dispersion, and a long-period-grating mode converter, and a higher order mode fiber with anomalous dispersion, wherein the all-fiber delivery system is free of bulk optics, and propagates laser pulses without pulse pre-chirping, and wherein higher order mode output beam from the all-fiber delivery system comprises pulses at less than about 200 femtoseconds.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: July 7, 2015
    Assignee: OFS FITEL, LLC
    Inventors: Kim G. Jespersen, Tuan Le
  • Publication number: 20150167280
    Abstract: A toilet sensor and actuator assembly, having: (a) an infrared sensor configured to detect the presence of an object at a far distance from a toilet; (b) an ultrasonic sensor configured to detect the presence of the object at a near distance from the toilet, wherein the ultrasonic sensor remains in a sleep mode until awakened by a signal from the infrared sensor that the infrared sensor has detected the presence of the object at the far distance; and (c) an actuator mechanism that flushes the toilet in response to a signal from the ultrasonic sensor that the ultrasonic sensor has detected the presence of the object at the near distance.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 18, 2015
    Applicant: FLUIDMASTER, INC.
    Inventors: Tuan Le, Adam Sampson, Derres Cataiano, Stewart Walton, Scott Valoff, Robb Milley
  • Publication number: 20140328365
    Abstract: A multifunctional laser device configured to be applicable as such in each of: multiple photon processes, nano structuring processes, optical coherence tomography, Terahertz (THZ) spectroscopy, THz imaging; or a combination of such processes; and comprising a mode-locked linear (X or Z-folded) fs laser resonator having a repetition rate of at least 300 MHz and 600 MHz at most and, thus, a corresponding short resonator length, said fs laser resonator further being a dispersive mirrors cavity having an average negative GDD (Group Delay Dispersion) in the spectral range of the laser operation, and being arranged to generate laser pulses with a pulse width of less than 30 fs, and comprising a pump laser operating at an optical output pump power of less than 2 W.
    Type: Application
    Filed: November 15, 2012
    Publication date: November 6, 2014
    Inventors: Alexander Grujic, Tuan Le, Andreas Stingl, Alfred Tomasch
  • Publication number: 20140109996
    Abstract: A flow valve that maintains a constant flow valve despite varying pressures at its inlet, comprising: (a) an elongated cage with alternating axially-extending pockets and ridges on its inner surface; and (b) an elongated generally conical shaped elastomeric sleeve received within the elongated cage; wherein the sleeve flexes outwardly at higher pressures, thereby decreasing the size of the flow channel between the sleeve and cage, thereby restricting flow to maintain constant flow valve despite varying inlet pressures.
    Type: Application
    Filed: October 18, 2012
    Publication date: April 24, 2014
    Applicant: Fluidmaster, Inc.
    Inventors: Tuan LE, Jaime Berndt, Adam Sampson
  • Publication number: 20140026309
    Abstract: A toilet flush valve that has a moveable buoyant float therein, wherein the float has an open bottom end to trap air therein and wherein the housing includes controls to selectively release air to allow the float to move upwardly therein to permit flushing. By timing when one or two air vents on the housing are open, the duration and volume of the flush can be controlled, with the buoyancy provided by the water lifting the float to open the flush valve. This provides a flushing system with minimal activation energy.
    Type: Application
    Filed: July 17, 2013
    Publication date: January 30, 2014
    Inventors: TUAN LE, Steve Cook, Adam Sampson
  • Patent number: 8615822
    Abstract: An air activated toilet flush system, including: a toilet bowl; a reservoir; a fluid conduit between the reservoir and the toilet bowl; a system for supplying water into the reservoir; and a system for supplying air into the reservoir, wherein a supply of air into the reservoir causes fluid to flow from the reservoir through the fluid conduit and into the toilet bowl.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: December 31, 2013
    Assignee: Fluidmaster, Inc.
    Inventors: Matt Vargas, Brian Lamb, Tom Stout, Eric Bennett, Tuan Le
  • Publication number: 20120312688
    Abstract: The present invention relates to a cation exchange membrane consisting in a polymeric matrix on the surface of which is(are) grafted at least one group of formula —R1—(CH2)m—NR2R3 and/or at least one molecule bearing at least one group of formula —R1—(CH2)m—NR2R3 wherein R1 represents an aryl group; m represents 0, 1, or 3; R2 and R3, either identical or different, represent a hydrogen or an alkyl group. The present invention relates to a method for preparing such a membrane and to its uses.
    Type: Application
    Filed: December 16, 2010
    Publication date: December 13, 2012
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Thomas Berthelot, Xuan Tuan Le
  • Publication number: 20120275195
    Abstract: A power supply may include a power transformer having a primary winding and a secondary winding, one end of the secondary winding connected to ground, and a shielded isolation transformer having a third winding, a fourth winding, and a shield, wherein the third winding is connected to the secondary winding and the shield is connected to ground. Primary side circuits may receive input power and generate a primary AC signal to drive the primary winding. Secondary side circuits may convert a secondary AC signal output from the fourth winding into a DC output.
    Type: Application
    Filed: April 24, 2012
    Publication date: November 1, 2012
    Inventors: Lorenzo Cividino, Thomas Ingman, Tuan Le
  • Patent number: D678982
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: March 26, 2013
    Assignee: Fluidmaster Inc.
    Inventors: Adam Sampson, Tuan Le, Tom Stout, John Whaley, David Peschel, Zaafir Kherani, Matt Vargas