Patents by Inventor Bobby Hu

Bobby Hu 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).

  • Wrench with anti-slipping function
    Patent number: 7631582
    Abstract: A wrench includes a body having two ends and a handle between the ends of the body. At least one of the ends of the body can be used for driving an object. The handle includes an upper face and a lower face opposite to the upper face. An anti-slipping section is formed on each of two end portions of the upper face and the lower face of the handle. Each anti-slipping section includes a plurality of embossed patterns. Since each anti-slipping section extends across the end portions of the handle, the user's hand will not slip during operation of the wrench even though there is oil on the user's hand.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: December 15, 2009
    Inventor: Bobby Hu
  • Ratchet Wrench with Three Operative Positions
    Publication number: 20090301265
    Abstract: A ratchet wrench includes a head (11) having a through-hole (13) rotatably receiving a drive member (20). Two pawls (30) are pivotably received in two compartments (21) in the drive member (20). Each pawl (30) includes first teeth (31) on a first end (60) thereof and second teeth (32) on a second end (62) thereof. Each pawl (30) includes first second, and third positioning faces (351, 352, 353) on an inner side (64) thereof. A control member (40) is rotatably received in the drive member (20) and movable between first, second, and third operative positions to change the driving direction of the ratchet wrench. The center (C) of the third positioning face (353) of each pawl (30) is not coincident to the center of the inner side (64) of the pawl (30).
    Type: Application
    Filed: February 19, 2009
    Publication date: December 10, 2009
    Inventor: Bobby Hu
  • Switch Device for Ratchet Wrench
    Publication number: 20090301266
    Abstract: A ratchet wrench includes a head (11) having a through-hole (13) rotatably receiving a drive member (20). A pawl (30) is pivotably received in a compartment (22) in the drive member (20). A switch member (42) is rotatably mounted to an end (54) of the drive member (20). A control member (41) is received in the drive member (20) and movable relative to the switch member (42) and the drive member (20) between a coupling position and a release position. When the control member (41) is in the coupling position, the switch member (42) and the control member (41) are rotatable relative to the drive member (20) between two operative positions, and a socket can be engaged with the other end (56) of the drive member (20). The socket can be removed from the other end (56) of the drive member (20) when the control member (41) is in the release position.
    Type: Application
    Filed: March 27, 2009
    Publication date: December 10, 2009
    Inventor: Bobby Hu
  • Screwdriver with Ratchet Mechanism
    Publication number: 20090199683
    Abstract: A screwdriver includes a first body having an end for coupling with a handle, a second body rotatably coupled to the other end of the first body, two pairs of engaging members, and a switch member pivotably mounted to the first body. Each pair of engaging members is slidably received in an associated transverse receiving section that includes two end openings in an outer circumference of the first body. Each engaging member includes a first end with an engaging portion. An elastic element is mounted between second ends of each pair of engaging members for biasing the pair of engaging members away from each other. The switch member is pivotable to selectively engage at least one of the engaging portions of each pair of engaging members with teeth of the second body, thereby controlling relative rotation between the first body and the second body.
    Type: Application
    Filed: April 13, 2009
    Publication date: August 13, 2009
    Inventor: Bobby Hu
  • Toolbox apparatus
    Patent number: 7559427
    Abstract: A toolbox apparatus includes a case, a cover and a flexible strip for pivotally connecting the case to the cover. The case includes a space defined therein for containing tools, an inclined face formed thereon, at least one engagement unit formed on the inclined face and at least one block formed thereon. The cover includes an inclined face for contact with the inclined face of the case in a displaying position of the toolbox apparatus, at least one engagement unit formed on the inclined face thereof for engagement with the engagement unit of the case for retaining the toolbox apparatus in the displaying position and at least one buckle formed thereon for engagement with the block of the case in a closed position.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: July 14, 2009
    Inventor: Bobby Hu
  • Turnbuckle and method for making the same
    Patent number: 7556448
    Abstract: A turnbuckle is made by a method including preparing an iron tube having a longitudinal through-hole. A diameter of each of two ends of the iron tube is reduced to form a coupling section having an engaging hole, with an interconnecting section interconnected between the coupling sections. The interconnecting section is punched in a direction perpendicular to the longitudinal through-hole to form a transverse through-hole perpendicular to the longitudinal through-hole and between the coupling sections, leaving two opposite peripheral wall portions spaced by the transverse through-hole and forming a bend extending inward from each of two end edges of each peripheral wall portion into the longitudinal through-hole. An abutting portion is formed between each bend and one of the end edges of one of the peripheral wall portions. Inner threading is formed in the engaging hole of each coupling section.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: July 7, 2009
    Inventor: Bobby Hu
  • Method for producing wrench socket
    Patent number: 7543366
    Abstract: A method for producing a wrench socket includes forging a metal blank to form a socket. An end of the socket includes an engaging hole for coupling with a wrench and an outer periphery surrounding the engaging hole. A support rod is inserted into the engaging hole of the socket. The support rod received in the engaging hole has a shape corresponding to that of the engaging hole. The outer periphery of the end of the socket is pressed to form size indicia on the outer periphery of the end of the socket. Surface treatment is carried out on the socket after the support rod is removed from the engaging hole of the socket.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: June 9, 2009
    Inventor: Bobby Hu
  • Caliper
    Patent number: 7509754
    Abstract: A caliper includes a first leg and a second leg pivotably connected together at first ends thereof. First and second abutting portions are respectively formed on second ends of the first and second legs. First and second slots are respectively defined in the first and second legs and between the first and second ends thereof. An indicator is slideably received in the first and second slots. The indicator is slideable along the first and second slots to move the first and second abutting portions toward each other until the first and the second abutting portions respectively abut against two opposite sides of an object to be gauged by the caliper. The size of the object is indicated by an indicating portion of the indicator that points to a scale on one of the first and second legs.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: March 31, 2009
    Inventor: Bobby Hu
  • Method for manufacturing wrench handle with pressed indentation section
    Patent number: 7503242
    Abstract: A method for manufacturing a wrench handle includes preheating a work piece made of metal, with a layer of carbon scale being generated on the work piece during preheating. The work piece is forged to form a wrench handle, with the carbon scale on the work piece being forged into a surface of the wrench handle during forging. The carbon scale is then removed, leaving a pitted area with a plurality of pits in the surface of the wrench handle. Finally, a concealment treatment is carried out, wherein the pitted area of the surface of the wrench handle is pressed inward to form an indentation section on the surface of the wrench handle for covering the pits.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: March 17, 2009
    Inventor: Bobby Hu
  • CALIPER
    Publication number: 20090056160
    Abstract: A caliper includes a first leg and a second leg pivotably connected together at first ends thereof First and second abutting portions are respectively formed on second ends of the first and second legs. First and second slots are respectively defined in the first and second legs and between the first and second ends thereof An indicator is slideably received in the first and second slots. The indicator is slideable along the first and second slots to move the first and second abutting portions toward each other until the first and the second abutting portions respectively abut against two opposite sides of an object to be gauged by the caliper. The size of the object is indicated by an indicating portion of the indicator that points to a scale on one of the first and second legs.
    Type: Application
    Filed: September 4, 2007
    Publication date: March 5, 2009
    Inventor: Bobby Hu
  • Wrench
    Publication number: 20090038444
    Abstract: A wrench includes a body having a shorter first section with a compartment and a longer second section. First and second plates are respectively mounted to two sides of the first section. A drive member is rotatably received in mounting holes in the plates and the compartment. The first plate is sandwiched between the first section and a flange on an end of the drive member. A retainer is coupled with a coupling portion on the other end of the drive member to rotatably retain the drive member in place and to secure the first and second plates and the body together. A pawl is slideably received in the compartment and includes a toothed section biased by an elastic element to engage with an annular toothed portion of the drive member. The first and second plates and the body have aligned fixing holes through which a fastener extends.
    Type: Application
    Filed: August 9, 2007
    Publication date: February 12, 2009
    Inventor: Bobby Hu
  • Universal Joint with Larger Torque Capacity
    Publication number: 20090041535
    Abstract: A universal joint includes a pair of yoke members each having a pair of spaced arms. A coupler is pivotably coupled with the arms of the yoke members, allowing the yoke members to respectively pivot about two pivot axes perpendicular to each other. The coupler includes opposite first and second faces slideably abutting with inner faces of the arms of one of the yoke members, opposite third and fourth faces slideably abutting with inner faces of the arms of the other yoke member, and opposite filth and sixth faces. A length of each of the first, second, third, and fourth faces between the fifth and sixth faces is larger than 0.6 times a width between the first and second faces and smaller than a distance from one of the two pivot axes to an intermediate face between the inner faces of the arms of one of the yoke members.
    Type: Application
    Filed: October 19, 2007
    Publication date: February 12, 2009
    Inventor: Bobby Hu
  • Pivotal Device for Universal Joint
    Publication number: 20090036222
    Abstract: A universal joint includes first and second yoke members each having a pair of spaced arms. A coupler includes a positioning hole in which an engaging member is received. Two pair of pins are extended through the arms of the first and second yoke member and through pin holes of the coupler into the positioning hole, allowing the first and second yoke members to respectively pivot about first and second pivot axes that are perpendicular to and intersect each other. The engaging member is movable between an engaged position engaged with the four pins and a free position disengaged from the four pins allowing detachment of the four pins.
    Type: Application
    Filed: October 9, 2007
    Publication date: February 5, 2009
    Inventor: Bobby Hu
  • Display Rack Assembly for Wrenches with Different Handles
    Publication number: 20090032484
    Abstract: A display rack assembly includes a rack having two coupling sections for releasably and fixedly coupling with a first wrench with a first handle and a second wrench with a second handle. The second handle includes a handle section having two opposite wider faces perpendicular to two opposite wider faces of the first handle. The handle section further includes two opposite narrower faces perpendicular to two opposite narrower faces of the first handle. A customer may hold one of the narrower faces of the first handle and one of the wider faces of the handle section of the second handle and apply a rotational force to try the wrenches.
    Type: Application
    Filed: September 21, 2007
    Publication date: February 5, 2009
    Inventor: Bobby Hu
  • Universal Joint with Wider Working Angle Range
    Publication number: 20090023504
    Abstract: A universal joint includes a pair of yoke members each having a pair of spaced arms. A coupler is pivotably coupled with the arms of the yoke members to allow the yoke members to respectively pivot about two pivot axes perpendicular to each other. Each arm includes two mutually facing inner faces and an intermediate face interconnected between the inner faces. Each arm further includes a pair of opposite lateral sides between which one of the inner faces extends. A recess is formed between each lateral side of each arm and one of the inner faces of one of the arms. The recesses of the arms of one of the yoke members allow entrance of the arms of the other yoke member.
    Type: Application
    Filed: October 5, 2007
    Publication date: January 22, 2009
    Inventor: Bobby Hu
  • Hanger for Wrench
    Publication number: 20080314779
    Abstract: A hanger is disclosed for a wrench. The wrench includes a head and an insert connected with the head. The hanger includes a board and an aperture defined in the board for receiving the insert of the wrench. The edge of the aperture can hold the insert in position because of friction.
    Type: Application
    Filed: September 4, 2008
    Publication date: December 25, 2008
    Inventor: Bobby Hu
  • Hanger for Wrench
    Publication number: 20080314782
    Abstract: A hanger is disclosed for a wrench. The wrench includes a head and an insert connected with the head. The hanger includes a board and an aperture defined in the board for receiving the insert of the wrench. The edge of the aperture can hold the insert in position because of friction.
    Type: Application
    Filed: September 4, 2008
    Publication date: December 25, 2008
    Inventor: Bobby Hu
  • Wrench Socket with Easily Recognizable Size Indicia
    Publication number: 20080302216
    Abstract: A wrench socket includes first and second ends spaced along a longitudinal axis. The first end includes a recessed indicia area formed in an outer peripheral wall face of a peripheral wall thereof. Size indicia extends outward from a bottom wall of the recessed indicia area and is integrally formed from a single homogenous material with the peripheral wall as a single continuous monolithic piece. The size indicia has a top face extending not beyond the outer peripheral wall face. The radii of the bottom wall and the top face are larger than a radius from the longitudinal axis to the outer peripheral wall face. Centers of curvatures of the bottom wall and the top face are located outside the longitudinal axis.
    Type: Application
    Filed: May 9, 2008
    Publication date: December 11, 2008
    Inventor: Bobby Hu
  • Method for Producing Wrench Socket
    Publication number: 20080301928
    Abstract: A method for producing a wrench socket includes forging a metal blank to form a socket. An end of the socket includes an engaging hole for coupling with a wrench and an outer periphery surrounding the engaging hole. A support rod is inserted into the engaging hole of the socket. The support rod received in the engaging hole has a shape corresponding to that of the engaging hole. The outer periphery of the end of the socket is pressed to form size indicia on the outer periphery of the end of the socket. Surface treatment is carried out on the socket after the support rod is removed from the engaging hole of the socket.
    Type: Application
    Filed: November 28, 2007
    Publication date: December 11, 2008
    Inventor: Bobby Hu
  • Wrench with reinforced hollow handle
    Patent number: 7444905
    Abstract: A wrench includes a head portion, a handle portion, and a neck portion between the head portion and the handle portion. The handle portion is hollow and includes a front portion contiguous to the neck portion and a rear portion to be gripped by a user. The front portion has a wall thickness greater than that of the rear portion.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: November 4, 2008
    Inventor: Bobby Hu