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).

  • Biasing arrangement for a pawl of a reversible ratchet-type wrench
    Patent number: 7237460
    Abstract: A reversible ratchet-type wrench includes a handle and a head extended from the handle and having a hole. A web is defined between the handle and the head, and a cavity is defined in the web and communicated with the hole. The web further includes a compartment having a first end communicated with the cavity and a second end communicated with outside, thereby leaving a bridge in the web. A drive member is rotatably mounted in the hole of the head. A pawl is mounted in the cavity and includes a first side with ratchet teeth for releasably engaging with teeth on an outer periphery of the drive member. A switch member includes a turn-piece for manual operation and an actuating plate extended from the turn-piece and rotatably received in the second end of the compartment of the head. The switch member is switchable between two positions for changing ratcheting direction of the drive member.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: July 3, 2007
    Inventor: Bobby Hu
  • WRENCH WITH ANTI-SLIPPING FUNCTION
    Publication number: 20070144312
    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: Application
    Filed: May 12, 2006
    Publication date: June 28, 2007
    Inventor: Bobby Hu
  • Reversible ratcheting tool with a smaller head and improved driving torque
    Patent number: 7234372
    Abstract: A ratcheting tool includes a handle and a head with a compartment. A drive member includes a first end extended beyond the compartment, a second end extended beyond the compartment, and a gear wheel formed between the first end and the second end. The gear wheel is rotatably mounted in the compartment and includes a toothed outer periphery. A pawl is mounted in the compartment and includes a toothed side facing the gear wheel teeth. The toothed side of the pawl includes a first teeth portion having a first center of curvature and a second teeth portion having a second center of curvature located at a position different from the first center of curvature.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: June 26, 2007
    Inventor: Bobby Hu
  • GRIP MEMBER FOR WRENCH
    Publication number: 20070137442
    Abstract: A wrench includes a body having a head and a handle having a grasping section. The handle includes two opposed sidewalls and a recessed portion between the sidewalls and at least partially located in the grasping section. A mounting hole extends from a bottom wall of the recessed portion through an outer side of the grasping section. A grip member includes a raised portion engaged in the recessed portion and having a receiving hole aligned with the mounting hole. A fastener is extended through the mounting hole into the receiving hole. The combined handle/grip member has a central line of a height extending between the ends of the body. Each sidewall of the handle extends across the central line. In another embodiment, a mounting strip is provided in a slot in the grasping section and has a peg engaged in a receiving hole of the grip member.
    Type: Application
    Filed: February 16, 2007
    Publication date: June 21, 2007
    Inventor: Bobby Hu
  • REVERSIBLE RATCHET WRENCH
    Publication number: 20070131064
    Abstract: A reversible ratchet wrench includes a handle from which a head extends. The head includes a compartment and a receiving hole in communication with the compartment. A drive member is rotatably mounted in the compartment and a pawl is slidably mounted in the compartment. A ring is mounted in the compartment and around an end of the drive member. A reversing plate is pivotably mounted to the end of the drive member and operatively connected to the ring to turn therewith. A switching member is pivotably mounted in the receiving hole of the head. The switching member is operatively connected to a tip piece of the ring to turn therewith. The switching member is operatively connected to the pawl to move the pawl for changing a driving rotating direction of the reversible ratchet wrench when the reversing plate is moved between two positions corresponding to two opposite driving rotating directions.
    Type: Application
    Filed: October 18, 2006
    Publication date: June 14, 2007
    Inventor: Bobby Hu
  • METHOD FOR MANUFACTURING WRENCH HANDLE WITH PRESSED INDENTATION SECTION
    Publication number: 20070107552
    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 preheated work piece is forged/pressed to form a wrench handle, with the carbon scale on the work piece being forged into upper and lower faces of the wrench handle. An indentation is formed on each of the upper and lower faces of the wrench handle. The carbon scale is then removed, leaving pits in the upper and lower faces of the wrench handle, with the pits concealed by the indentation sections.
    Type: Application
    Filed: October 31, 2006
    Publication date: May 17, 2007
    Inventor: Bobby Hu
  • SCREWDRIVER HANDLE
    Publication number: 20070107563
    Abstract: A screwdriver handle includes a first handle part and a second handle part. A first pivotal coupling portion is formed on an end face of the first handle part and includes two receptacles each receiving a positioning member. The second handle part includes an end face with a second pivotal coupling portion pivotally engaged with the first pivotal coupling portion. A positioning hole extends from a wall of the second pivotal coupling portion. One of the positioning members is biased into a retaining section of the positioning hole to position the second handle part. A control member is mounted in the positioning hole and movable to urge the positioning member in the receptacle aligned with the positioning hole into the receptacle, allowing the screwdriver handle to be switchable between an in-line state and an angled-state.
    Type: Application
    Filed: October 20, 2006
    Publication date: May 17, 2007
    Inventor: Bobby Hu
  • SCREWDRIVER HANDLE
    Publication number: 20070107562
    Abstract: A screwdriver handle includes a first handle part and a second handle part. An axle is formed on an end face of the first handle part and includes two receptacles each receiving a positioning member. The second handle part includes an end face pivotally connected to the end face of the first handle part and having a groove for receiving the axle. A positioning hole extends from a wall defining the groove through an outer periphery of the second handle part. One of the positioning members is biased into a retaining section of the positioning hole to position the second handle part. A control member is mounted in the positioning hole and movable to urge the positioning member in the receptacle aligned with the positioning hole into the receptacle, allowing the screwdriver handle to be switchable between an in-line state and an angled state.
    Type: Application
    Filed: July 5, 2006
    Publication date: May 17, 2007
    Inventor: Bobby Hu
  • METHOD FOR MANUFACTURING WRENCH HANDLE WITH PRESSED INDENTATION SECTION
    Publication number: 20070107553
    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: Application
    Filed: October 27, 2006
    Publication date: May 17, 2007
    Inventor: Bobby Hu
  • Wrench With Adjustable Maximum Operational Torque
    Publication number: 20070062347
    Abstract: A wrench includes a casing having a compartment, a rod rotatably received in the casing and having an end for coupling with a drive member for driving a fastener, an adjusting member mounted in the rod, and an elastic element for retaining the rod mounted between the adjusting member and the casing. When a rotational force applied to the casing is smaller than an engaging force between the casing and the elastic element, the rod turns together with the casing for tightening the fastener. When the rotational force applied to the casing is greater than the engaging force between the casing and the elastic element, the casing slides relative to the rod without turning the fastener. The adjusting member is adjustable in position relative to the casing to thereby change the engaging force between the casing and the elastic element.
    Type: Application
    Filed: January 11, 2006
    Publication date: March 22, 2007
    Inventor: Bobby Hu
  • APPARATUS FOR CARRYING TOOLS
    Publication number: 20070050956
    Abstract: There is disclosed an apparatus for carrying tools. The apparatus includes a body and a latch. The body includes a pivotal connection end, an abutment end separated from the pivotal connection end and a hanging section formed between the pivotal connection end and the abutment end. The hanging section includes a rough surface for providing adequate friction between itself and the tools so that the movement of the tools on the hanging section is limited and that the tools can be put on and taken from the hanging section in a convenient and fast manner. The latch includes a pivotal connection end pivotally connected to the pivotal connection end of the body and an abutment end for abutment against the abutment end of the body in an elastic manner.
    Type: Application
    Filed: September 6, 2005
    Publication date: March 8, 2007
    Inventor: Bobby Hu
  • Adjustable head for a wrench
    Patent number: 7171875
    Abstract: A wrench includes a handle, a head having a pivotal portion pivotably connected to an end of the handle, and a retaining mechanism. The pivotal portion of the head includes two end portions and an intermediate portion between the end portions. The intermediate portion includes an arcuate outer surface section that has teeth to be releasably engaged with the retaining mechanism, allowing the head to be pivotally moved to a desired position relative to the handle and retaining the head in the desired position. Thus, the thickness of the respective end portion of the pivotal portion of the head is not reduced, preventing damage to the torque-bearing section in the respective end portion of the pivotal portion during operation.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: February 6, 2007
    Inventor: Bobby Hu
  • RETAINING ASSEMBLY
    Publication number: 20070013149
    Abstract: A retaining assembly includes a body and a retainer. The body includes a compartment defined in an end thereof. The compartment is defined by a perimeter wall and an end wall. A coupling hole is defined in the end wall for receiving a tool. The retainer is mounted in the compartment of the body and has a through-hole aligned with the coupling hole of the body. The retainer further includes at least one resilient positioning portion abutting against the perimeter wall of the body for retaining the retainer in the compartment of the body. The retainer further includes at least one resilient clamping portion extending into the coupling hole of the body for pressing against at least one face of the tool received in the coupling hole of the body.
    Type: Application
    Filed: September 5, 2006
    Publication date: January 18, 2007
    Inventor: Bobby Hu
  • WRENCH EXTENSION
    Publication number: 20070006687
    Abstract: A wrench extension includes a body having an end with a coupling section for releasably coupling with an open end of a handle of a wrench that has an adjustable head pivotably connected to the other end of the handle. The wrench extension further includes a retaining member mounted to the end of the body for securely clamping the open end of the wrench on the end of the body. The retaining member is movable relative to the body to allow coupling of the wrench extension with wrenches with variously sized open ends.
    Type: Application
    Filed: September 20, 2005
    Publication date: January 11, 2007
    Inventor: Bobby Hu
  • TOOL HANDLE WITH BIT CARRIER
    Publication number: 20060288531
    Abstract: A tool handle includes a body, a bit carrier, and an actuating member. An end of the body includes a compartment. One of two lateral sides of the body has an opening in communication with the compartment. The bit carrier is mounted in the compartment of the body and movable relative to the body in a longitudinal direction. The bit carrier includes a bit-holding section for holding at least one bit. A retaining member is mounted to the bit carrier for retaining the bit carrier to the body. The actuating member is mounted in the opening of the body. The actuating member is operable to move the bit carrier from a storage position to an ejected position not falling out of the body and to impart a frictional force between the retaining member and the body to prevent the bit carrier from falling out of the body.
    Type: Application
    Filed: April 17, 2006
    Publication date: December 28, 2006
    Inventor: Bobby Hu
  • WRENCH ASSEMBLY
    Publication number: 20060288825
    Abstract: A wrench assembly includes a first wrench, a second wrench and a bar. The first wrench includes a first driving device at an end and a second driving device at an opposite end. The second wrench includes a first driving device at an end and a second driving device at an opposite end. The bar includes a first connecting device for connection to the second driving device of the first wrench and a second connecting device for connection to the first driving device of the second wrench. The first C-clip reinforces the connection of the first connecting device of the bar to the second driving device of the first wrench. The second C-clip reinforces the connection of the second connecting device of the bar to the first driving device of the second wrench.
    Type: Application
    Filed: April 13, 2006
    Publication date: December 28, 2006
    Inventor: Bobby Hu
  • Wrench combination
    Patent number: 7143669
    Abstract: A wrench combination includes a wrench and a drive member. An inner protrusion is formed on a polygonal inner periphery of a box end of the wrench. The drive member includes an engaging portion removably mounted in the box end and engaged with the polygonal inner periphery, with an end of the drive member being located outside the box end. The engaging portion includes a retaining section. A retaining member is mounted on the drive member. Each of the retaining section and the retaining member has an outer diameter greater than a diameter of a hole delimited by the inner protrusion. The retaining section and the retaining member respectively abut against two end faces of the inner protrusion to position the drive member. The retaining member is compressible to be smaller than the diameter of the hole delimited by the inner protrusion.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: December 5, 2006
    Inventor: Bobby Hu
  • TOOL KIT
    Publication number: 20060260441
    Abstract: A tool kit includes a number of wrenches of various sizes and a corresponding number of go-through type sockets. Each wrench includes a handle with a box end. Each wrench further includes a wheel that is rotatably mounted in the box end of the handle and that defines an inner periphery with a nominal size. Each socket includes an engaging portion for engaging with the box end of a corresponding wrench. The engaging portion includes a nominal size the same as that of the corresponding wrench. Each socket further includes a driving portion having a driving hole with a nominal size the same as that of the corresponding wrench. The engaging portion of each socket includes a recessed portion having a plurality of annularly spaced grooves. Each groove has two inclined faces to allow easy removal of the socket.
    Type: Application
    Filed: June 6, 2006
    Publication date: November 23, 2006
    Inventor: Bobby Hu
  • Hanger for tool
    Patent number: 7124900
    Abstract: A hanger is disclosed for a tool in the form of a socket and that includes a recess. The hanger includes a board, two locking elements extending from the board and a key located between the locking elements. The board includes an aperture so that it can be hung on an object secured to a wall. The key is moved between a non-locking position and a locking position. In the non-locking position, the key allows the locking elements to be biased toward each other so that they can be inserted in the recess of the socket. In the locking position, the key prevents biasing of the locking elements toward each other so that they cannot be pulled from the recess of the socket.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: October 24, 2006
    Inventor: Bobby Hu
  • Wrench
    Patent number: D530577
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: October 24, 2006
    Inventor: Bobby Hu