Patents by Inventor Louis Chuang

Louis Chuang 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: 20210101275
    Abstract: A foot-operated bicycle work stand includes a frame and a lifting device. The frame includes a fixed post, a lifting rod, and at least one leg. The lifting rod is slidably mounted on the fixed post. The at least one leg is connected to the fixed post and is adjacent to a bottom end of the fixed post when in a folded state. The lifting device includes a pneumatic rod, a pedal, and a control cable. The pneumatic rod includes a first end received in the fixed post and a second end connected to the lifting rod. The pneumatic rod is telescopic and is configured to control the lifting rod to move relative to the fixed post. The control cable includes a first end connected to the pneumatic rod and a second end connected to the pedal.
    Type: Application
    Filed: July 22, 2020
    Publication date: April 8, 2021
    Inventor: Louis CHUANG
  • Publication number: 20200338628
    Abstract: A chain tool includes a body having a driving hole, a stop portion, and a receiving portion located between the driving hole and the stop portion in an axial direction. A pressing member is received in the receiving portion and is movable relative to the body in the axial direction. A push member is in threading connection with the first threaded portion and is movable relative to the body between a first position distant to the stop portion and a second position adjacent to the stop portion. The pressing member is pressed by the push member and moves in an arcuate path when the push member moves between the first and second positions.
    Type: Application
    Filed: January 7, 2020
    Publication date: October 29, 2020
    Inventor: Louis CHUANG
  • Publication number: 20200324842
    Abstract: A bicycle luggage rack includes a mounting rack and a supporting rack. The mounting rack includes a first sliding portion having a first end and a second end opposite to the first end. The first sliding portion further includes an arcuate portion between the first and second ends. The supporting rack is disposed on top of the mounting rack. The supporting rack includes a second sliding portion and a placement surface. The second sliding portion is slidably disposed on the first sliding portion and is slidable along the arcuate portion. An angle between the placement surface and the mounting rack is varied while the second sliding portion slides along the arcuate portion of the first sliding portion. The level of the placement surface is varied while the second sliding portion slides along the arcuate portion of the first sliding portion.
    Type: Application
    Filed: December 11, 2019
    Publication date: October 15, 2020
    Inventor: Louis CHUANG
  • Patent number: 10794504
    Abstract: A high pressure cartridge inflator has a body including an air inlet port connectible to a high pressure cartridge, an air outlet port connectible to a valve of an object to be inflated, an air discharge port, and defining a first channel extending from the air let port to the air outlet port and a second channel extending from the first channel to the air discharge port. A pressure indicator is disposed within the body and is fluidly connected to the first and second channels. A safety device is disposed in the second channel and is configured to selectively prevent and allow high pressure air in the high pressure cartridge to flow out of the body through the air discharge port.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: October 6, 2020
    Inventor: Louis Chuang
  • Publication number: 20200191240
    Abstract: A chain master link tool includes a first lever and a second lever pivotally and releasably coupled together. Each of the first and second levers include a first working portions and a second working portion. The first and second levers are pivotal to an extended position in which the first working portions face oppositely and are disposed apart and cooperatively delimit a connection space therebetween for connection of a master link with a roller chain assembly and the second working portions face oppositely and are disposed apart and cooperatively delimit a removal space therebetween for removal of the master link from the roller chain assembly respectively.
    Type: Application
    Filed: November 18, 2019
    Publication date: June 18, 2020
    Inventor: Louis CHUANG
  • Publication number: 20200017896
    Abstract: The invention relates to recombinant microorganisms and methods for producing steviol glycosides, glycosylated ent-kaurenol, and glycosylated ent-kaurenoic acid.
    Type: Application
    Filed: June 7, 2019
    Publication date: January 16, 2020
    Inventors: Kim Olsson, Ernesto Simon, Michael Dalgaard Mikkelsen, Simon Carlsen, Veronique Douchin, Swee Chuang Lim, Louis During
  • Patent number: 10364450
    Abstract: The invention relates to recombinant microorganisms and methods for producing steviol glycosides, glycosylated ent-kaurenol, and glycosylated ent-kaurenoic acid.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: July 30, 2019
    Assignee: EVOLVA SA
    Inventors: Kim Olsson, Ernesto Simon, Michael Dalgaard Mikkelsen, Simon Carlsen, Veronique Douchin, Swee Chuang Lim, Louis During
  • Publication number: 20190217824
    Abstract: An inflator includes a body having a first passage, a second passage, and a third passage. The first passage is configured to couple with an air tank or a compressed gas cartridge. The first passage unidirectionally intercommunicates with the second passage and the third passage. The second passage is configured to couple with an air pump. The third passage is configured to couple with a to-be-inflated-object. A first one-way valve unit is disposed between the first and second passages, such that compressed gas is only flowable from the second passage to the first passage. A second one-way valve unit is disposed between the first passage and the third passage, such that compressed gas is only selectively flowable from the first passage to the third passage.
    Type: Application
    Filed: November 7, 2018
    Publication date: July 18, 2019
    Inventor: Louis Chuang
  • Patent number: 10343738
    Abstract: A combination includes a water bottle holder adapter and a water bottle holder. The water bottle holder adapter includes first and second engaging portions. The first engaging portion can engage with a bicycle seat. The water bottle holder includes first, second, and third extensions. The first extension is detachably connected to the second engaging portion of the water bottle holder adapter. The third extension extends transversely to the first extension and includes an abutment face on which a water bottle can rest. The first, second, and third extensions together define a receiving space receiving the water bottle and having an opening opposite to the abutment face. Each of the first and second extensions includes an end adjacent to the opening. A first spacing between the end of the first extension and the abutment face is smaller than a second spacing between the end of the second extension and the abutment face.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: July 9, 2019
    Inventor: Louis Chuang
  • Patent number: 10329083
    Abstract: A bicycle transport case includes a container adapted to be opened and closed. The container includes a first outer side and a second outer side and has a chamber for receiving a bicycle frame defined by interior sides of the first and second outer sides. A retaining device configured to retain the bicycle frame at various angular orientations is pivotally and detachably connected to the container. The retaining device includes a main guide rail pivotally connected to the container about an axis and at least one retaining stand for retaining the bicycle frame movably mounted on the main guide rail and adapted to be locked in various positions on the main guide rail.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: June 25, 2019
    Inventor: Louis Chuang
  • Patent number: 10308303
    Abstract: A bicycle seat for accommodating bicycle accessories includes a seat having a bottom face. Two rails are fixed below and spaced from the bottom face of the seat. A support is connected to the seat and is located between the two rails. A receiving space is defined between the support and the seat and can accommodate at least one bicycle accessory. The space between the two rails can be effectively used, and the receiving space can accommodate bicycle accessories.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: June 4, 2019
    Inventor: Louis Chuang
  • Patent number: 10252759
    Abstract: A bicycle stand includes a base, a connection unit and a support unit. The base has first and second arms non-parallel to each other. The connection unit is arranged between the first and second aims. The support unit is detachably mounted on the connection unit and is transformable between a folding position and a using position. The support unit is detached from the connection unit when the support unit is in the folding position. The support unit is attached on the connection unit and is adapted to engage with a spindle in a crank-arm of a bicycle to support the bicycle in an upright position on a surface when the support unit is in the using position.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: April 9, 2019
    Inventor: Louis Chuang
  • Patent number: 10203059
    Abstract: A dual-air tap inflation nozzle includes a body, a first cap assembly, a second cap assembly, a slidable valve slidably disposed in the body, and a lever member. The body has a first end, a second end, a first passage and a second passage in communication to the first passage. The first cap assembly is mounted to the first end and has a third diameter. The second cap assembly is mounted to the second end and has a fourth diameter larger than the third diameter. The lever member is abutable against the slidable valve to cause the second passage to move in relation to the first passage. Thus, the second passage is in communication with a first inflatable space or a second inflatable space of the body.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: February 12, 2019
    Inventor: Louis Chuang
  • Publication number: 20190032802
    Abstract: A high pressure cartridge inflator has a body including an air inlet port connectible to a high pressure cartridge, an air outlet port connectible to a valve of an object to be inflated, an air discharge port, and defining a first channel extending from the air let port to the air outlet port and a second channel extending from the first channel to the air discharge port. A pressure indicator is disposed within the body and is fluidly connected to the first and second channels. A safety device is disposed in the second channel and is configured to selectively prevent and allow high pressure air in the high pressure cartridge to flow out of the body through the air discharge port.
    Type: Application
    Filed: March 28, 2018
    Publication date: January 31, 2019
    Inventor: Louis Chuang
  • Patent number: 10183716
    Abstract: A seat connecting device includes a first base unit for coupling with a bicycle seat and a second base unit. The first base unit includes an extension having a first end portion with first teeth and a connecting portion. The second base unit includes a body and a connecting member. The body includes a second end portion with second teeth and a sliding groove extending through the second end portion. The connecting member extends through the sliding groove and is detachably connected to the connecting portion. The connecting member selectively presses against a side of the second end portion distant to the second teeth. The second teeth disengageably engages with the first teeth. A water bottle holder can be mounted to the body.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: January 22, 2019
    Inventor: Louis Chuang
  • Publication number: 20180370588
    Abstract: A bicycle stand includes a base, a connection unit and a support unit. The base has first and second arms non-parallel to each other. The connection unit is arranged between the first and second aims. The support unit is detachably mounted on the connection unit and is transformable between a folding position and a using position. The support unit is detached from the connection unit when the support unit is in the folding position. The support unit is attached on the connection unit and is adapted to engage with a spindle in a crank-arm of a bicycle to support the bicycle in an upright position on a surface when the support unit is in the using position.
    Type: Application
    Filed: March 28, 2018
    Publication date: December 27, 2018
    Inventor: Louis Chuang
  • Patent number: 10131393
    Abstract: A storage device includes an attachment unit and a storage unit. The attachment unit includes a bracket, a support connected with a bottom end of the bracket, and a first joining member. The bracket includes at least one through-hole adapted for attachment to a bicycle by a fastener. The support includes a first pivoting portion, and the first joining member is inserted through the first pivoting portion. The storage unit includes a container adapted for storing articles and a second joining member. The container includes a second pivoting portion pivotally connected with the first pivoting portion of the support. The second joining member is inserted through the second pivoting portion and is engaged with the first joining member. The storage unit is pivotable with respect to the attachment unit about an axis extending through the first and second joining members.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: November 20, 2018
    Inventor: Louis Chuang
  • Publication number: 20180104803
    Abstract: A bicycle repair tool includes a base, a first tool assembly, a second tool assembly, and a third tool assembly. The base includes a connecting portion, a first plate portion, a second plate portion, and a protruded portion. The connecting portion includes a receiving space. The protruded portion is connected to the first plate portion and is received in the receiving space. The first tool assembly is pivotally connected to a first side of the base and is located between the first and second plate portions. The second tool assembly is pivotally connected to a second side of the base and is located between the first and second plate portions. The connecting portion is located between the first and second tool assemblies. The third tool assembly is receivable in the receiving space and includes a tool including a receiving hole removably connected to the protruded portion.
    Type: Application
    Filed: June 23, 2017
    Publication date: April 19, 2018
    Inventor: Louis Chuang
  • Publication number: 20180057092
    Abstract: A carrier device includes a frame and a connecting unit connected to the frame and having an engaging member. The engaging member includes a receiving groove, at least one elastic portion elastically and flexibly disposed in a bottom wall of the receiving groove, and an abutting shoulder disposed in the receiving groove and having at least one opening. An article receiving unit is detachably connected to the connecting unit and includes an accommodating member for receiving articles for a bicycle. The accommodating member includes a protruding portion releasably received in the receiving groove and having at least one first positioning portion and at least one second positioning portion. The elastic portion is engaged with the first or second positioning portion. A pressing portion on the accommodating member is passable through the opening to a position between the abutting shoulder and the bottom wall of the receiving groove.
    Type: Application
    Filed: April 14, 2017
    Publication date: March 1, 2018
    Inventor: Louis Chuang
  • Patent number: 9902451
    Abstract: A carrier device includes a frame and a connecting unit connected to the frame and having an engaging member. The engaging member includes a receiving groove, at least one elastic portion elastically and flexibly disposed in a bottom wall of the receiving groove, and an abutting shoulder disposed in the receiving groove and having at least one opening. An article receiving unit is detachably connected to the connecting unit and includes an accommodating member for receiving articles for a bicycle. The accommodating member includes a protruding portion releasably received in the receiving groove and having at least one first positioning portion and at least one second positioning portion. The elastic portion is engaged with the first or second positioning portion. A pressing portion on the accommodating member is passable through the opening to a position between the abutting shoulder and the bottom wall of the receiving groove.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: February 27, 2018
    Inventor: Louis Chuang