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).

  • Tool kit
    Patent number: 7104163
    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 with a nominal size. Each socket includes an engaging portion for engaging with the box end of a corresponding one of the wrenches. The engaging portion includes a nominal size the same as that of the corresponding one of the wrenches. Each socket further includes a driving portion having a driving hole with a nominal size the same as that of the corresponding one of the wrenches.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: September 12, 2006
    Inventor: Bobby Hu
  • Compact wrench with three-stage control
    Patent number: 7089830
    Abstract: A wrench includes a handle, a head, a drive member rotatably mounted in the head, two pawls, an elastic element for biasing at least one of the pawls to engage with the drive member, and a pivotable switch. An end of each pawl defines a space. The end of each pawl further includes a protrusion. The spaces of the pawls overlap with each other and the protrusion of each pawl is located in the space of the other pawl. The switch includes an actuating member extending into the overlapped spaces of the pawls and between the protrusions of the pawls. The actuating member of the switch is pivotable to engage with and thus move the protrusion of one of the pawls, disengaging the pawl from the drive member and thereby changing a driving rotation direction and a free rotation direction of the wrench.
    Type: Grant
    Filed: November 29, 2004
    Date of Patent: August 15, 2006
    Inventor: Bobby Hu
  • PORTABLE TOOLBOX
    Publication number: 20060175217
    Abstract: A portable toolbox is disclosed. The portable toolbox includes a frame and a holder. The holder can hold a plurality of bits. The holder is put in the frame so that the holder can be pivoted between a retreated position and an extended position relative to the frame. In the retreated position, the bits are kept in the holder in cooperation with the frame. In the extended position, the bits can be put onto and taken from the holder from two opposite sides of the frame.
    Type: Application
    Filed: April 1, 2005
    Publication date: August 10, 2006
    Inventor: Bobby Hu
  • Protective sleeve for use with extension bar
    Patent number: 7062997
    Abstract: A protective sleeve is provided for use with an extension bar. The extension bar includes a detent and a button that can be pressed in order to control the detent. The protective sleeve defines a hole and an aperture communicating with the hole. The hole receives the extension bar when the aperture receives the button.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: June 20, 2006
    Inventor: Bobby Hu
  • Hanger for wrench
    Publication number: 20060091038
    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: November 1, 2004
    Publication date: May 4, 2006
    Inventor: Bobby Hu
  • Ratcheting wrench with quick tightening/loosening functions and fine adjusting functions
    Patent number: 7032478
    Abstract: A ratcheting wrench includes a handle, a head extending from an end of the handle and having a hole communicated with a compartment in the end of the handle, a drive member rotatably mounted in the hole of the head, and a ratcheting mechanism. The drive member includes an inner periphery for securely holding a fastener-driving member, allowing joint rotation when the drive member is turned. The drive member further includes a flange formed on an end of an outer periphery thereof and located outside the head for manual rotation of the drive member. The ratcheting mechanism is mounted in the compartment of the handle and engaged with the teeth of the drive member, allowing the handle to selectively move in a ratcheting direction for tightening/loosening a fastener and in a free turning direction reverse to the ratcheting direction in which the fastener is not turned.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: April 25, 2006
    Inventor: Bobby Hu
  • SWITCH FOR WRENCH WITH ADJUSTABLE HEAD
    Publication number: 20060065079
    Abstract: A wrench includes a handle, an adjustable head including a pivotal section that is pivotably connected to an end of the handle, and a switch. The adjustable head further includes a driving portion for releasably engaging with a fastener. The switch is pivotally mounted on the adjustable head between the driving portion and the pivotal section of the adjustable head. The switch comprises at least one operative end that is operable for changing a driving direction of the driving portion for driving the fastener. The operative end of the switch does not move across the pivotal section of the adjustable head when the switch is moved to change the driving direction of the driving portion.
    Type: Application
    Filed: September 8, 2005
    Publication date: March 30, 2006
    Inventor: Bobby Hu
  • Reversible ratchet-type wrench
    Patent number: 7017453
    Abstract: A wrench includes a handle, a head extending from the handle and having a hole for rotatably receiving a drive member, and a web defined between the handle and the head. The web includes a side and a compartment communicated with the hole of the head. An opening is defined in the side of the web and communicated with the compartment. A pawl is slidably received in the compartment and includes a recessed portion. A switching member has a first end for manual operation and a second end extending through the opening of the web into the recessed portion of the pawl. The recessed portion of the pawl and the second end of the switching member are so configured that the switching member is not moved when the pawl moves as a result of free rotation of the wrench.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: March 28, 2006
    Inventor: Bobby Hu
  • REVERSIBLE HIGH-TORQUE SCREWDRIVER
    Publication number: 20060048610
    Abstract: A screwdriver includes a handle, a first body having an end securely mounted in the handle, a second body rotatably mounted in the first body, a ratcheting mechanism slidably mounted in a receiving section in the other end of the first body, and a switch member pivotally mounted to the other end of the first body. The switch member is pivotable between a first position and a second position to control engagement/disengagement of the ratcheting mechanism with/from teeth of the second body and to control relative rotation between the first body and the second body. A reinforcing member is provided in the receiving section to withstand high-torque operation.
    Type: Application
    Filed: July 15, 2005
    Publication date: March 9, 2006
    Inventor: Bobby Hu
  • Ratcheting wrench with quick tightening/loosening functions and fine adjusting functions
    Patent number: 6971286
    Abstract: A ratcheting wrench includes a handle, a head extending from an end of the handle and having a hole communicated with a compartment in the end of the handle, a drive member rotatably mounted in the hole of the head, and a ratcheting mechanism. The drive member includes an inner periphery for securely holding a fastener-driving member, allowing joint rotation when the drive member is turned. The drive member further includes a flange formed on an end of an outer periphery thereof and located outside the head for manual rotation of the drive member. The ratcheting mechanism is mounted in the compartment of the handle and engaged with the teeth of the drive member, allowing the handle to selectively move in a ratcheting direction for tightening/loosening a fastener and in a free turning direction reverse to the ratcheting direction in which the fastener is not turned.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: December 6, 2005
    Inventor: Bobby Hu
  • Fastener-driving tool assembly
    Patent number: 6971292
    Abstract: A fastener-driving tool assembly includes a fastener-driving member and a coupling device. The fastener-driving member includes a first end and a second end for driving a fastener. The first end of the fastener-driving member includes a polygonal opening. The coupling device includes a first member and a second member. The second member has a polygonal end securely engaged with the polygonal opening of the fastener-driving member. The first member includes an end for engaging with the other end of the second member. The other end of the first member includes a polygonal engaging hole for engaging with one of an extension rod, a handle, and a polygonal first end of a second member of a similarly constructed coupling device.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: December 6, 2005
    Inventor: Bobby Hu
  • Tool kit
    Publication number: 20050262971
    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 with a nominal size. Each socket includes an engaging portion for engaging with the box end of a corresponding one of the wrenches. The engaging portion includes a nominal size the same as that of the corresponding one of the wrenches. Each socket further includes a driving portion having a driving hole with a nominal size the same as that of the corresponding one of the wrenches.
    Type: Application
    Filed: January 10, 2005
    Publication date: December 1, 2005
    Inventor: Bobby Hu
  • Durable case
    Publication number: 20050258010
    Abstract: A blow-molded plastic case is made of plastic via a blow-molding process. The blow-molded plastic case includes a first shell, a second shell pivotally connected with the first shell and at least one protective ball attached to the first shell for preventing the first shell from contact with a surface such as the ground, a table, a board or the like.
    Type: Application
    Filed: May 21, 2004
    Publication date: November 24, 2005
    Inventor: Bobby Hu
  • Compact wrench with three-stage control
    Publication number: 20050257650
    Abstract: A wrench includes a handle, a head, a drive member rotatably mounted in the head, two pawls, an elastic element for biasing at least one of the pawls to engage with the drive member, and a pivotable switch. An end of each pawl defines a space. The end of each pawl further includes a protrusion. The spaces of the pawls overlap with each other and the protrusion of each pawl is located in the space of the other pawl. The switch includes an actuating member extending into the overlapped spaces of the pawls and between the protrusions of the pawls. The actuating member of the switch is pivotable to engage with and thus move the protrusion of one of the pawls, disengaging the pawl from the drive member and thereby changing a driving rotation direction and a free rotation direction of the wrench.
    Type: Application
    Filed: November 29, 2004
    Publication date: November 24, 2005
    Inventor: Bobby Hu
  • Adjustable head for a wrench
    Patent number: 6957600
    Abstract: A wrench includes a handle, a head having a pivotal portion pivotably connected to an end of the handle, and a retaining mechanism for allowing the head to be pivotally moved to a desired position relative to the handle and retaining the head in the desired position. The pivotal portion of the head includes a fore part and a rear part with reference to a ratcheting direction of the handle. The fore part includes an arcuate outer surface section. The rear part includes a toothed section having a plurality of teeth. The toothed section has a dedendum circle located inside an area delimited by the arcuate outer surface section. Thus, the thickness of the fore part is not reduced, preventing damage to the torque-bearing section in the fore part during operation.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: October 25, 2005
    Inventor: Bobby Hu
  • RATCHETING WRENCH WITH QUICK TIGHTENING/LOOSENING FUNCTIONS AND FINE ADJUSTING FUNCTIONS
    Publication number: 20050229751
    Abstract: A ratcheting wrench includes a handle, a head extending from an end of the handle and having a hole communicated with a compartment in the end of the handle, a drive member rotatably mounted in the hole of the head, and a ratcheting mechanism. The drive member includes an inner periphery for securely holding a fastener-driving member, allowing joint rotation when the drive member is turned. The drive member further includes a flange formed on an end of an outer periphery thereof and located outside the head for manual rotation of the drive member. The ratcheting mechanism is mounted in the compartment of the handle and engaged with the teeth of the drive member, allowing the handle to selectively move in a ratcheting direction for tightening/loosening a fastener and in a free turning direction reverse to the ratcheting direction in which the fastener is not turned.
    Type: Application
    Filed: July 6, 2005
    Publication date: October 20, 2005
    Inventor: Bobby Hu
  • Reversible ratcheting tool with a smaller head
    Patent number: 6955104
    Abstract: A ratcheting tool includes a handle, a head, and a drive member having a gear wheel rotatably mounted in a compartment of the head. An end of the drive member extends beyond the compartment. A pawl is mounted in the compartment and includes teeth for engaging with the teeth of the gear wheel. A switching plate is mounted to the end of the drive member and is pivotable between two positions. The switching plate includes a ring portion and a thumb piece. The ring portion includes a recessed portion, and a retainer is mounted on the recessed portion and partially engaged in an engaging groove in the end of the drive member. The thumb piece includes a protrusion on an underside thereof for engaging with a recess in the pawl such that the pawl is moved when the thumb piece is turned.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: October 18, 2005
    Inventor: Bobby Hu
  • Wrench
    Patent number: D515889
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: February 28, 2006
    Inventor: Bobby Hu
  • Tool handle
    Patent number: D528397
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: September 19, 2006
    Inventor: Bobby Hu
  • Wrench
    Patent number: D528883
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: September 26, 2006
    Inventor: Bobby Hu