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).

  • Chainguard and bicycle frame
    Patent number: 8029397
    Abstract: A chainguard for use on a bicycle includes a housing having a connecting portion and an engaging portion. The connecting portion and the engaging portion are connected to a seat tube and a rear stay of a bicycle frame in the bicycle. Additionally, the rear stay includes a first portion and a second portion adapted for engaging with an axle of a rear wheel, and the first and second portions are interconnected at a corner. Additionally, the second portion includes a first surface, a second surface and a third surface substantially transverse to and interconnecting the first and second surfaces. Further, the third surface defines a positioning portion on which the engaging portion of the chainguard is mounted.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: October 4, 2011
    Inventor: Louis Chuang
  • Stand for Bicycle
    Publication number: 20110220594
    Abstract: A stand adapted for holding a bicycle includes a base including a compartment such that a wheel of the bicycle is adapted to be received, a holding mechanism including a first end including a retaining member for abutting against the wheel that is engaged with the stand, and a second end pivotally connected to the first seat so as to connect the holding mechanism to the base, and being moveable between a first position that is erected from the base and enables the retaining member to hold the wheel, and a second position that is lain onto the base, and further including a control switch on the first end activating its change between the first and second positions, and a plurality of support legs connected to the base and with each being moveable between a first position extended from the base, and a second position retracted in the base.
    Type: Application
    Filed: March 10, 2010
    Publication date: September 15, 2011
    Inventor: Louis Chuang
  • Bicycle mudguard with clamping assembly
    Patent number: 7976041
    Abstract: A front bicycle mudguard is detachably coupled with a clamping assembly. The mudguard has a main body, and a head portion is defined on an end of the main body, with a fixed end provided on an extremity of the head portion. The clamping assembly includes one first clamping device and two second clamping devices. The first clamping device includes a tightening member and a clamping member. The tightening member is inserted into an orifice of a front fork of the bicycle, with an end of the clamping member engaged with the tightening member. Another end of the clamping member is detachably installed to the fixed end. Each second clamping device includes a belt adapted to quickly attach to/detach from the front fork.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: July 12, 2011
    Inventor: Louis Chuang
  • Combination of Tire Tool and Tool Set
    Publication number: 20100319495
    Abstract: A combination of a tire tool and a tool set includes its tire tool including two connecting lugs extending therefrom and that one connecting lug opposes to and spaced from the other, and a working section defined thereon. The two connecting lugs define a width extending in a direction transverse to a longitudinal direction of the tire tool. The combination includes its tool set including a housing member including two plates connected to each other in a spaced relationship and that one plate separated from the other in a first direction. The two plates include a space defined therebetween and define two openings and that one opening opposes from the other in a second direction transverse to the first direction. The tool set further includes a fixing device extending between and engaging with the two plates.
    Type: Application
    Filed: June 15, 2010
    Publication date: December 23, 2010
    Inventor: Louis Chuang
  • Tool of Tool Set
    Publication number: 20100319501
    Abstract: A tool is made from a body and includes a driving end formed on a proximal end of the body for performing a specific procedure and a connecting end formed on the distal end of the body by bending the distal end, and the distal end is formed to have a cross section being rectangular prior to forming the connecting end.
    Type: Application
    Filed: March 11, 2010
    Publication date: December 23, 2010
    Inventor: Louis CHUANG
  • Pump for providing three modes of pumping
    Patent number: 7789638
    Abstract: A pump includes a base and a cylinder installed on the base. The base defines a pumping channel. The cylinder defines a first chamber and a second chamber with a diameter different from that of the first chamber. The first and second chambers are in communication with the pumping channel. A first check valve only allows air to travel into the pumping channel from the first chamber. A second check valve allows air to travel into the pumping channel from the second chamber. A first piston is movable in the first chamber. A second piston is movable in the second chamber. A control device prevents the venting of air from the chambers in a first mode, vents air from the second chamber without traveling through the pumping channel in a second mode, and vents air from the first chamber without traveling through the pumping channel in a third mode.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: September 7, 2010
    Inventor: Louis Chuang
  • Device for attaching a bag to a luggage carrier
    Patent number: 7766201
    Abstract: A device for attaching a bag to a luggage carrier of a bicycle includes a beam secured to the bag, two hooks installed on the beam to hook the luggage carrier and a restraining unit. The restraining unit includes a plate formed on the beam, a cover attached to the plate, at least one latch movably installed on the plate, at least one elastic element compressed between the cover and the latch so that an end of the latch is exposed from the plate for restraining the luggage carrier, a shackle movable on the plate between a first position for keeping the end of the latch exposed from the plate and a second position for allowing the retreat of the end of the latch into the plate and a elastic element compressed between the cover and the shackle for keeping the shackle in the first position.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: August 3, 2010
    Inventor: Louis Chuang
  • Bicycle-used identification device
    Patent number: 7748150
    Abstract: A bicycle is provided with an identification device. The identification device includes a base, an identity plate and two fasteners. The base is formed on the bicycle. The fasteners are used to attach the identity plate to the base so that the identity plate cannot be removed from the base.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: July 6, 2010
    Inventor: Louis Chuang
  • Bicycle Mudguard with Clamping Assembly
    Publication number: 20100164195
    Abstract: A front bicycle mudguard is detachably coupled with a clamping assembly; wherein the mudguard has a main body and a head portion is defined on an end of the main body, with a fixed end provided on an extremity of the head portion. The clamping assembly includes a first clamping device and two second clamping devices; wherein the first clamping device includes a tightening member and a clamping member, with the tightening member inserted into an orifice of a front fork of the bicycle, with an end of the clamping member engaged with the tightening member, with another end of the clamping member detachably installed to the fixed end. Each second clamping device includes a belt is adapted to quickly attach to/detach from the front fork.
    Type: Application
    Filed: December 29, 2008
    Publication date: July 1, 2010
    Inventor: Louis Chuang
  • Collar Having Connecting Device for Attaching Bicycle Accessory
    Publication number: 20100154583
    Abstract: A collar for use on a bicycle includes a body for bearing a headset at a higher elevation with respect to a frame tube and safeguarding against a reversion of the headset to a lower elevation. The body includes an annular portion circumferentially attached to a handlebar stem which is attached to the frame tube. Further, a connecting device has a first end thereof including a joint connected to the body and a second end thereof including a quick-release mechanism to which an accessory is releasably attached.
    Type: Application
    Filed: December 24, 2008
    Publication date: June 24, 2010
    Inventor: Louis Chuang
  • Connecting Device for Equipping a Container on a Bicycle
    Publication number: 20100122994
    Abstract: A connecting device includes a fixture having a through slot, a block having a compartment connected to and in communication with the through slot, a neck, a hooking base extending from the neck, and a controller moveably mounted in the compartment and including a first engaging portion extending out of the through slot and being operable to move into the through slot. A connecting body is releasably mounted to the fixture and including a first end and a second end, a first groove and a second groove. When the connecting body is joined with the fixture, the hooking base is received in the first groove and the neck is received in the second groove and the first engaging portion of the controller protrudes on the first end of the connecting body for secure and stable engagement therebetween.
    Type: Application
    Filed: November 19, 2008
    Publication date: May 20, 2010
    Inventor: Louis Chuang
  • Bicycle saddle
    Patent number: 7699392
    Abstract: A bicycle saddle includes a frame and a padding placed over the frame. The padding includes a leading edge, a trailing edge and a recessed supporting surface defined therein for receiving an elastic element. The elastic element includes leading and trailing edge portions for receiving the leading and trailing edges of the padding respectively. The elastic element further includes two side edges extending longitudinally between the leading and trailing edge portions exposed from the recessed supporting surface so that when the bicycle saddle is subject to a force of weight transmitted from a rider, the elastic element can extend transversely to the longitudinal direction between leading and trailing edge portions thereof without confinement.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: April 20, 2010
    Inventor: Louis Chuang
  • Bicycle saddle
    Patent number: 7661757
    Abstract: A bicycle saddle includes a frame including an upper side on which first and second paddings are mounted and an under side on which a suspension rail is mounted for mounting the bicycle saddle on a bicycle. The frame further includes a compartment defined between the first and second paddings. An elastic element is received in the compartment and includes side edges which form edges of the bicycle saddle. A cover snugly fitted over the first and second paddings and the elastic element includes two spaces, whereby when a rider's pelvis bears on the bicycle saddle, the sides edges of the elastic element can extend outward of the spaces, respectively, for reducing pressure against the rider's pelvis.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: February 16, 2010
    Inventor: Louis Chuang
  • Quick connect/disconnect bicycle power pack
    Patent number: 7661858
    Abstract: A quick connect/disconnect bicycle power pack includes a mounting device mounted on a bicycle and a spare power pack having a mounting portion adapted for quick attachment/detachment with the mounting device. The spare power pack is adapted to connect to and supply electricity to a plurality of electrically-powered accessories, such as a flashlight, a stop watch, and a loudspeaker.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: February 16, 2010
    Inventor: Louis Chuang
  • Apparatus for attaching various accessories to a seat tube of a bicycle
    Patent number: 7661691
    Abstract: An apparatus for detachably connecting a selected one of various accessories to a bicycle includes a receptacle, an insert and a fastening device. The receptacle is connected to the bicycle. The insert is connected to the selected accessory so that the selected accessory is detachably connected to the bicycle when the insert is inserted in the receptacle. The fastening device is used to keep the insert in the receptacle.
    Type: Grant
    Filed: January 25, 2007
    Date of Patent: February 16, 2010
    Inventor: Louis Chuang
  • Apparatus for attaching accessory to bicycle
    Patent number: 7654550
    Abstract: An apparatus for attaching an accessory to a bicycle includes a plug, a socket and a quick release. The plug is attached to the bicycle or the accessory. The socket is attached to the remaining one of the bicycle and the accessory. The socket is used to receive the plug. The quick release is used to retain the plug in the socket.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: February 2, 2010
    Inventor: Louis Chuang
  • Bicycle saddle
    Patent number: 7628451
    Abstract: A saddle for a bicycle includes a frame and a padding device. The frame includes a front tray and a rear tray. The rear tray defines at least one slot. The padding device includes a front pad and at least one rear pad. The front pad is installed on the front tray. The rear pad includes a block formed on the bottom thereof. The block is movable in the slot so that the rear pad is movable on the rear tray.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: December 8, 2009
    Inventor: Louis Chuang
  • Bicycle Saddle
    Publication number: 20090261632
    Abstract: A bicycle saddle comprises a saddle including front and rear portions; an elastic member disposed between the front and rear portions; a valve assembly installed to bottom of the saddle between the front and middle portions and including an air pump and an air escape valve communicating with the elastic member.
    Type: Application
    Filed: July 1, 2009
    Publication date: October 22, 2009
    Inventor: Louis CHUANG
  • Collapsible stand for bicycle
    Patent number: 7575207
    Abstract: A collapsible stand for bicycle includes a body having a first end, a second end, and a chamber which can receive a crank of a bicycle. A positioning device is movable in the chamber and selectively lockable at the first and the second end of the body. Two supporting legs, each supporting leg includes a first end being pivotally connected with the positioning device and a second end adapted to abut against a supporting surface, wherein the supporting legs are received in the body when the positioning device is at first end of the body, wherein the supporting legs are exposed from the body when the positioning device is at second end of the body.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: August 18, 2009
    Inventor: Louis Chuang
  • Device for connecting a kickstand to a bicycle
    Patent number: 7575245
    Abstract: A device for connecting a kickstand to a bicycle includes a first connective member, a second connective member and a fastener. The first connective member is connected to a chain stay and a seat stay. The first connective member includes a claw formed thereon for holding a shaft of a rear wheel and a cavity defined therein. The kickstand is pivotally connected to the second connective member. The second connective member includes a block fit in the cavity so that the first and second connective members cannot be rotated with respect to each other. The fastener is used for fastening the first and second connective members to each other.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: August 18, 2009
    Inventor: Louis Chuang