Reversing Patents (Class 81/63.1)
  • Patent number: 8250947
    Abstract: A ratchet wrench includes a head having a compartment. The compartment includes a first compartment section rotatably receiving a drive member and a second compartment section slideably receiving two pawls releasably engaged with the drive member. A switch is rotatably received in a switch groove formed in a side of the head and in communication with the second compartment section. A reversing plate is rotatably mounted to an engaging portion of the drive member extending beyond the head. The reversing plate includes a control section having a guiding groove. The switch includes a pin slideably engaged in the guiding groove. The switch pivots in the switch groove with the pin sliding in the guiding groove when the reversing plates pivots to control engagement between the drive member and the first and second pawls for controlling a driving direction of the ratchet wrench.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: August 28, 2012
    Inventor: Bobby Hu
  • Patent number: 8245602
    Abstract: A ratchet wrench includes a wrench head having a pawl compartment formed between a notch and a chamber of the wrench head, a drive member mounted in the chamber of the wrench head and having a ratchet gear, a pawl slidably received in the pawl compartment of the wrench head for engaging with the ratchet gear and for controlling the driving direction of the drive member by the wrench head, a handle having a pivotal coupling member mounted in the notch of the wrench head, and an actuating member attached to the pivotal coupling member and engaged with the pawl for moving the pawl to either side of the pawl compartment of the wrench head in order to determine the driving direction of the drive member by the wrench head.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: August 21, 2012
    Inventor: Meng Tsung Chan
  • Publication number: 20120192683
    Abstract: A hand tool with a bushing includes a receiving space defined in a driving head thereof, a ratchet assembly movably received in the receiving space for adapting to driving a work piece, and a bushing disposed between the ratchet assembly and an inner periphery of the receiving space. The ratchet assembly has an outer configuration substantially corresponding in geometry to the receiving space. When the ratchet assembly is operated, the bushing is able to sustain a wear of the ratchet assembly.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 2, 2012
    Inventor: Yi-Fu Chen
  • Publication number: 20120186403
    Abstract: A multi-size ratchet socket wrench comprises a ratchet unit disposed between a drive unit and a handle. The drive unit includes multiple forms of different sized engaging ends for driving different sized objects. Through the ratchet unit, the drive unit can rotate around the axial direction of the handle with respect to the handle and offers a ratchet function in the control direction of the user. By such arrangements, the multi-size ratchet socket can be applied in narrow space since it not only has multiple sizes of engaging ends but exerts a ratchet function, thus enhancing convenience in use.
    Type: Application
    Filed: March 4, 2011
    Publication date: July 26, 2012
    Inventor: I-Su CHEN
  • Publication number: 20120174716
    Abstract: An insulated ratchet wrench comprising a body and an insulated coat coated with an outer periphery of the body. The body is divided into a head and a handle and a through hole is defined in the head for mounting a ratchet device. The ratchet device includes a polygonal stub extending therefrom and passing through the insulated coat for connecting to a workpiece. An actuator extends through the insulated coat and the through hole for partially and moved received in the polygonal stub. The insulated coat includes an enlarged portion for coating the head. A recess is defined in the enlarged portion for movably receiving the actuator and a through hole is defined in a bottom of the recess to allow the actuator extending through the insulated coat.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 12, 2012
    Inventor: Cheng-Chang Tsai
  • Patent number: 8215207
    Abstract: A ratchet wrench includes a driving end including a ratchet member, two pawls releasably and selectively engaging with the ratchet member for setting the ratchet wrench in two operation modes, and a switching mechanism disposed between the pawls. The switching mechanism includes limits urging the respective pawls such that one limit engages with one pawl to urge it to disengage from the ratchet member while the other limit disengages from the other pawl to allow it to engage with the ratchet member in one operation mode, and the other limit engages with the other pawl to urge it to disengage from the ratchet member while the one limit disengages from the one pawl to allow it to engage with the ratchet member in another operation mode. Additionally, the pawls are prevented from being mis-shifted by the switching mechanism.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: July 10, 2012
    Assignee: New Way Tools Co., Ltd.
    Inventor: Ping-Wen Huang
  • Patent number: 8210074
    Abstract: A dismantling device comprises a tubular body and a tubular dismantling head, with a front end of the body inserted into a back end of the dismantling head, and a front end of the dismantling head provided with a dismantling structure to be engaged with a work piece. An inner wall of the back end of the dismantling head is provided with an inner toothed ring encircled by a number of teeth. An outside of the body is encircled by a hand wheel. The hand wheel is provided with a meshing block, revolving together with the hand wheel by a drive of the hand wheel. A link mechanism is provided inside a window, driving the meshing block to rotate a certain angle and making a front end of the meshing block to engage with the inner toothed ring at the dismantling head when the hand wheel is rotating.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: July 3, 2012
    Assignee: Shangyu Huanzhou Tools Co., Ltd.
    Inventor: Boyong Wang
  • Patent number: 8210073
    Abstract: A ratchet wrench includes a head having a compartment rotatably receiving a drive member. A pawl groove is formed in an inner periphery of compartment and slideably receives two pawls. A slot is formed in a side of the head and in communication with the pawl groove. A first end of a control plate is pivotably mounted to an engaging portion of the drive member extending beyond the side of the head via a hole in the side. A second end of the control plate includes two legs extending through the slot into the pawl groove for actuating the pawls upon rotation of the control plate to change a driving direction of the ratchet wrench. A positioning device is provided to position the control plate.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: July 3, 2012
    Inventor: Bobby Hu
  • Publication number: 20120118113
    Abstract: A ratchet wrench includes a handle and a wrench head unit having head body rotatably mounted on a head portion of the handle, a plurality of tubular coupling member angularly displaced from each other, and a plurality of driving heads, each coupled with the respective tubular coupling member by means of a ratchet unit. By virtue of the ratchet unit, the driving head can be selectively turned in a clockwise direction, a counterclockwise direction, or both thereof. By virtue of the driving heads, the ratchet wrench can be used to turn a variety of fasteners.
    Type: Application
    Filed: March 16, 2011
    Publication date: May 17, 2012
    Inventor: Chih-Hung WU
  • Publication number: 20120060653
    Abstract: A multi-size ratchet wrench, which is easy to operate and is of multiple sizes, includes a wrench handle having two ends, at least one of which forms a head that receives and retains therein a fitting assembly that effect single direction driving. The fitting assembly rotatably supports a rotatable block that has a rotational axis substantially perpendicular to a rotational axis of the fitting assembly. The rotatable block has a circumferential surface forming one or multiple fitting sections that are substantially normal to the rotational axis of the rotatable block. This arrangement allows a user to select among differently-sized fitting sections through direct rotation of the rotatable block. Thus, the number of sockets to be carried and times of replacing sockets are both reduced. Further, the single direction driving allows the wrench handle make loaded driving of the fitting assembly in one direction and load-free rotation in an opposite direction.
    Type: Application
    Filed: September 15, 2010
    Publication date: March 15, 2012
    Inventor: JUNG-CHOU HSU
  • Publication number: 20120055290
    Abstract: A steering device for a ratchet screwdriver includes a base. The base has a receiving hole defined therein. Two receiving grooves are defined in the base. A moving slot is comparted from receiving hole. A ratchet rod is partially received in the base. The ratchet rod includes a spindle and a ratchet wheel disposed on the spindle. Two blockers are respectively received in the two receiving grooves. Each blocker has unidirectional teeth formed on one end thereof for selectively engaging with the ratchet wheel. A housing is sleeved on the base. The housing has a protrusion disposed on an interior thereof for inserting into the moving slot.
    Type: Application
    Filed: September 8, 2010
    Publication date: March 8, 2012
    Inventor: Yi-Fu Chen
  • Patent number: 8122791
    Abstract: A compact, three-way ratchet drive mechanism selectively enables ratcheting operation in a clockwise direction, or an anti-clockwise direction, or disables ratcheting behavior. The mechanism includes a ratchet housing, a drive shaft, a ratchet wheel, J-shaped pawls, and a coaxially fitted selector sleeve for selecting a desired mode of operation.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: February 28, 2012
    Assignee: Winsire Enterprises Corporation
    Inventor: Waltherus Christianus Klomp
  • Publication number: 20120036968
    Abstract: The present invention discloses a ratchet wrench comprising a main body, a driving head, three pawls, a knurled rotatable disc and a locking ring. The driving head has a limit portion and a couple portion for coupling a workpiece. The limit portion has three tangent planes each forming a recess cut for pawl located. The limit portion has a cylinder linking with the locking ring. The limit portion is mounted by a mounting piece having three sliding slots and three rails. Each pawl is guided by a relative rail and has a rod linking to an elastic element. When the knurled rotatable disc is turned to interact the rod, the rod triggers the pawl, and the retaining cogs of the pawl are engaged with the ratchet teeth to control the driving head being turned clockwise or counterclockwise.
    Type: Application
    Filed: October 13, 2010
    Publication date: February 16, 2012
    Inventor: Hong-Jen Lee
  • Patent number: 8109182
    Abstract: The present invention provides a ratchet tool, wherein a circular tooth row is arranged into the round groove of the main body's actuating end. A tool driving seat is assembled rotatably onto the round groove of the main body. A first braking slot, a second braking slot and an arched control slot are triangularly configured onto the internal surface of the tool driving seat. The first and second braking slots are separately fitted with the first and second braking swing blocks. A moveable control gear is placed into the control slot and can shift to the through-hole at both ends of the control slot such that it is mated simultaneously with inner tip edges of the first and second braking swing blocks. An elastic resetter is additionally provided to make the first and second braking swing blocks with inner tip edge swing inwards in a normal state.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: February 7, 2012
    Inventor: Ho-Yi Chen
  • Patent number: 8109180
    Abstract: A ratchet wrench includes a head rotatably receiving a drive member. The head includes an end wall having a hole. One of an inner face of the end wall and an end face of the drive member defines a first abutment face. The other of the inner face and the end face includes an annular groove having a bottom wall defining a second abutment face. A dustproof ring is mounted and compressed in the annular groove. The dustproof ring in an uncompressed state has a natural maximum height along a rotating axis of the drive member larger then a spacing between the first and second abutment faces. The dustproof ring includes three sealing units along a radial direction perpendicular to the rotating axis. Each sealing unit has a thickness along the rotating axis smaller than the spacing.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: February 7, 2012
    Inventor: Bobby Hu
  • Publication number: 20120017730
    Abstract: A ratcheting tool including a handle formed with an integral yoke at a first end and a tool head coupled to the yoke at a pivot. The tool head has a toothed hub facing rearwardly of the pivot and into the yoke. A locking spool is rotatably carried in the yoke adjacent the toothed hub. The locking spool has a first face, a second face, and a first tooth extending along both the first face and the second face and engaging the toothed hub. The locking spool is rotatable between a first position in which the first face is adjacent the toothed hub, thereby locking the tool head in a selected angular position with respect to the handle, and a second position in which the second face is adjacent the toothed hub such that the tool head is pivotable about the pivot.
    Type: Application
    Filed: October 3, 2011
    Publication date: January 26, 2012
    Applicant: EASCO HAND TOOLS, INC.
    Inventors: Pei Yang Lee, Antonio De La Torre
  • Patent number: 8096214
    Abstract: A ratcheting assembly for a tool comprising a housing, a gear supported by a hollow shaft located in the housing and a pawl to engage the gear. A ring in contact with the housing allows adjustment of the ratcheting assembly. The assembly can the releasably lock the tool within the ratcheting assembly by way of a locking mechanism located within the shaft. The assembly further has a compressible collar that will be used to release the tool from the ratcheting assembly.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: January 17, 2012
    Assignee: Bradshaw Medical, Inc.
    Inventor: Hua Gao
  • Publication number: 20110290083
    Abstract: A geared socket wrench hand tool is disclosed. The socket wrench is a clickless wrench allowing for more precise movement of the socket. The socket wrench, through a series of gears, can rotate in infinitesimally small rotations.
    Type: Application
    Filed: May 25, 2010
    Publication date: December 1, 2011
    Inventor: Dalwinder Singh Sidhu
  • Patent number: 8047101
    Abstract: A wrench comprises a handle connected to a housing. A socket is rotatably supported in the housing for ratcheting movement relative to the housing. A retaining member releasably secures a device in the socket. A retainer is supported on the housing and is movable between a first position and a second position. The retainer, when in the first position, at least partially overlays the socket. A plurality of guides orient a member relative to the socket. The guides are mounted in a rotatable body. A first handle is permanently connected to the housing and a second handle is removably connected to the housing.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: November 1, 2011
    Assignee: Irwin Industrial Tool Company
    Inventors: Brandon Seth Cross, Derek James Nash
  • Publication number: 20110259157
    Abstract: A ratchet tool includes a tool head provided with a plurality of ratchet teeth on an inner peripheral surface, a drive body having an outer surrounding surface confronting the ratchet teeth, and a guiding slot for receiving first and second pawls and a biasing member to permit the pawls to be displaced between extending and retracted positions, and an actuator twistable relative to the head and having two inner boundary contours to define two recessed regions to accommodate displaceable engagements of keys of the pawls with the inner boundary contours. The pawl end is configured to extend along an entire axial length of the drive body so as to be fully engaged with the ratchet teeth in the engaging position, thereby permitting transmission of a relatively large torque during rotation of the tool head.
    Type: Application
    Filed: September 1, 2010
    Publication date: October 27, 2011
    Inventor: Chin-Tan Huang
  • Publication number: 20110232426
    Abstract: A quick-turn wrench includes a driving head with an axle hole. One side of the axle hole has a claw. A ratchet ring is accommodated in the axle hole. One end of the ratchet ring extends outside the axle hole and connects to a wrench handle. The ratchet ring is surrounded by a ratchet part that correspondingly engages the claw. A transmission rod is inserted into the ratchet ring, with one end having a transmission part. A bottom plate is disposed at the bottom of the axle hole. The end surface of the bottom plate facing the axle hole has a sliding groove. A pushing element is disposed in the sliding groove corresponding to the claw. The transmission part of the transmission rod connects to the pushing element. As the transmission rod rotates, the pushing element is driven to push the claw to release the fixing state between the claw and the ratchet ring.
    Type: Application
    Filed: January 21, 2011
    Publication date: September 29, 2011
    Applicant: ADVANCE TEAM POWER INC.
    Inventor: Chun-Lang Lin
  • Publication number: 20110232425
    Abstract: A folding tool includes two support plates, a ratchet driver pivotally mounted between the two support plates, a rotation seat rotatably mounted between the two support plates, and a plurality of tips each removably mounted on the rotation seat and each detachably mounted on the ratchet driver. The ratchet driver drives each of the tips to rotate in the operation direction only and idles in the opposite direction so that each of the tips can rotate the screw member in the operation direction successively so as to screw or unscrew the screw member easily and quickly. Thus, when the folding tool is used in a smaller space, each of the tips is driven by the ratchet driver to rotate the screw member in the operation direction successively and to screw or unscrew the screw member easily and quickly.
    Type: Application
    Filed: March 25, 2010
    Publication date: September 29, 2011
    Inventors: Maan-Jyi Chang, Paul Chang
  • Patent number: 7987747
    Abstract: A ratcheting tool such as a reversible dual-pawl ratchet wrench is disclosed that minimizes wasted motion during ratchet slip or counter-rotation. The ratchet wrench includes a bias assembly that biases the pawls apart to bias a first, selected pawl for a selected drive direction towards engagement with a ratchet gear, and that the biases the selected pawl into a concentric alignment with the ratchet gear. In this manner, non-ratcheting initial rotation of the pawl due to counter-rotation prior to the pawl camming out of engagement with the ratchet gear is eliminated, thus eliminating wasted motion and maximizing the available angular sweep for the wrench.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: August 2, 2011
    Assignee: Snap-On Incorporated
    Inventors: David T. Ross, Steven R. Wente
  • Patent number: 7975574
    Abstract: A ratchet wrench includes a head and a handle interconnected to the head. The head includes a first compartment rotatably receiving a drive member. Two pawls are slideably received in a compartment of the head. A switch is slideably received in a third compartment of the head between first, second, and third operative positions to change the driving direction of the ratchet wrench. An actuator is slideably received in the second compartment and includes two guiding portions selectively engaged with one of the pawls when the switch is in one of the first and second operative positions. The pawls are disengaged from the guiding portions and engaged with the drive member when the switch is in the third operative positions, allowing the handle and the drive member to rotate in either of two directions driving a fastener, and not allowing free rotation of the handle relative to the drive member in either of the two directions without driving the fastener.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: July 12, 2011
    Inventor: Bobby Hu
  • Publication number: 20110162489
    Abstract: A ratchet wrench includes a driving end including a ratchet member, two pawls releasably and selectively engaging with the ratchet member for setting the ratchet wrench in two operation modes, and a switching mechanism disposed between the pawls and including limits urging the respective pawls such that one limit engages with one pawl to urge it to disengage from the ratchet member while the other limit disengages from the other pawl to allow it to engage with the ratchet member in one operation mode, and the other limit engages with the other pawl to urge it to disengage from the ratchet member while the one limit disengages from the one pawl to allow it to engage with the ratchet member in another operation mode. Additionally, the pawls are prevented from being mis-shifted by the switching mechanism.
    Type: Application
    Filed: January 5, 2010
    Publication date: July 7, 2011
    Inventor: Ping-Wen Huang
  • Publication number: 20110162486
    Abstract: An open end ratchet wrench includes a socket member received in an opened head member and having an open notch for selectively aligning with an open slot of the head member, a pawl engaged in the head member for determining the rotating direction of the socket member by the head member, and a spring biasing member engaged with the pawl and having two end portions extended out of the pawl and engaged with the head member for anchoring the spring biasing member to the head member and for evenly biasing the pawl to engage with the teeth of the socket member, the wrench head member includes rounded upper and lower peripheral portions for allowing the socket member and the ring member to be reached and to be easily operated by the user.
    Type: Application
    Filed: January 7, 2010
    Publication date: July 7, 2011
    Inventors: Jack Lee, Jimmy Lin
  • Publication number: 20110146459
    Abstract: A multi-angle hand tool for a handle includes a shank including a body, and a compartment defined in the body. An operating device includes a connecting end having an engaging portion defined thereon. A guide is mounted in the compartment and includes an embedding portion defined thereon. A connecting device is disposed and interconnected between the operating device and the guide. The multi-angle hand tool has a plurality of operation modes and in each operation mode the operating device is prevented from moving and pivoting with respect to the shank by engaging the engaging portion with the embedding portion. Furthermore, a longitudinal length of the operating device is perpendicular to, or angled to non-perpendicularly, or aligned with the longitudinal length of the body of the shank selectively for different operation modes.
    Type: Application
    Filed: September 17, 2010
    Publication date: June 23, 2011
    Inventors: Tsai-Ching Chen, Fanny Hi
  • Publication number: 20110132149
    Abstract: A ratchet wrench includes a wrench body having an action end with a housing space formed thereon to hold a ratchet wheel, and two siding troughs located at two sides of the housing space to hold two brake members, and a latch member located at the rear side of the housing space. A direction control member is hinged on the rear side of the housing space and includes a swinging bar, a position member and a stirring bar that are stacked in a up and down manner. The stirring bar can be turned to move the position member and the swinging bar concurrently. The position member is latched by the latch member and positioned. The swinging bar can push the slider at one side to move the brake member forwards to engage with ratchet teeth while another brake member at another side is moved rearwards to separate the ratchet wheel.
    Type: Application
    Filed: December 3, 2009
    Publication date: June 9, 2011
    Inventor: Tuan-Jung LEE
  • Publication number: 20110126678
    Abstract: A ratchet device includes a body having a compartment extending along a first axis. A ratchet member is rotatably received in the compartment about the first axis. The body includes first and second sides each having a receptacle in communication with the compartment. A ratchet block is received in each receptacle. A control member is received in a groove in a top side of the body. The groove is in communication with the compartment via an opening. The control member is movable between three positions along an axis perpendicular to but spaced from the first axis to disengage a toothed portion of either of the ratchet blocks from teeth on the ratchet member so as to control the driving direction of the ratchet device.
    Type: Application
    Filed: October 14, 2010
    Publication date: June 2, 2011
    Inventor: Bobby Hu
  • Publication number: 20110120272
    Abstract: A ratchet wrench with variable output torque includes a wrench body, a control bar, a control pin, and a handle. The body includes a shank having an end forming a driving section for coupling with a socket and an opposite end pivotally connected to an end of the control bar through a pivot pin. The pivot pin is substantially normal to but not intersecting a central axis of the driving section so that the control bar is rotatable about the pivot pin for angular displacement. The control pin controls angular displacing between the control bar and the shank. The handle forms a bore slidably and slidably receiving the control bar to thereby form an extendible/contractible handle arrangement constituted by the handle, the control bar, and the shank. The handle is freely rotatable about an outer circumference of the control bar for efficient and effective operation of rotating the driving section.
    Type: Application
    Filed: September 6, 2010
    Publication date: May 26, 2011
    Inventors: YING-HAO PENG, Chia-Hui Peng
  • Publication number: 20110113933
    Abstract: The present invention discloses a ratchet wrench with a head portion disposed at one end of a main body. A driving head is disposed in the head portion. A retaining portion is disposed on the driving head. The periphery of the retaining portion has three recess cuts each holding one pawl in a swing status. A circular chamber is disposed in the periphery of the retaining portion. Three pawls are pin-connected by three connecting pins so as to move together. The circular chamber is coupled with one triangular elastic piece. One rotatable disc and one cardioid spring are disposed on the head portion. When the rotatable disc is turned, the shift pin at the bottom of the rotatable disc drives the cardioid spring and one pawl, then the other two pawls move together so that the retaining teeth on one side of the pawl engage with the ratchet teeth, and further control the driving head on clockwise or counterclockwise driving.
    Type: Application
    Filed: November 15, 2009
    Publication date: May 19, 2011
    Inventor: Hong-Jen Lee
  • Patent number: 7942253
    Abstract: Provided is a novel handle device that encloses a ratcheting mechanism that a user can easily control and operate using only one hand by employing conveniently located push button ratchet controls situated at the opposing lateral surface ends of the handle.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: May 17, 2011
    Assignee: K2M, Inc.
    Inventors: Brian C. Schneeman, Scott A. Jones, Richard W. Woods
  • Publication number: 20110094350
    Abstract: A ratchet wrench includes a handle pivotally coupled to a head, a shaft rotatably attached to the head and having a gear and a bevel gear, two pawls engaged in the head for engaging with the gear and for determining the driving direction of the shaft by the head and the handle, an actuating member for selectively disengaging either of the pawls from the gear, a cartridge attached to the shaft, and a driving member rotatably attached to the cartridge and having another bevel gear engaged with the bevel gear of the shaft for allowing the driving member to be rotated by the shaft and the bevel gears and for allowing the pivot head ratchet wrench to be easily used to drive or unthread the fasteners located at a higher position.
    Type: Application
    Filed: October 26, 2009
    Publication date: April 28, 2011
    Inventor: Chung Cheng Yang
  • Publication number: 20110088519
    Abstract: A tool box includes a body having a front end and a force-receiving portion spaced from the front end. The body further includes first and second sides and two lateral walls. The lateral walls, the front end, and the force-receiving portion are integrally formed as a single and inseparable component of the same material. The front end includes a compartment. A receiving space is defined between the lateral walls and has an opening in the second side or the force-receiving portion. A ratcheting mechanism includes a main body mounted in the body and a ratchet wheel rotatably received in the main body. The ratchet wheel is located in a quarter corner of the body adjacent to the front end and the first side. A driving groove is defined in the ratchet wheel for engaging and driving a shank to rotate. A bit-receiving rack is removably received in the receiving space.
    Type: Application
    Filed: September 8, 2010
    Publication date: April 21, 2011
    Inventor: Bobby Hu
  • Patent number: 7926390
    Abstract: A driving tool includes a shank, a sleeve, and a return spring disposed therebetween. The shank has a ball recess with a ball received therein. The shank has an interior interface adapted for receiving a tool bit. The ball recess substantially extends into the interior interface. The sleeve mounts on the shank to slide between limits. The sleeve has a first interior ball release recess followed by an interior ball lock surface and then a second interior ball release recess. The release recesses and surface are oriented with respect to the ball recess so as to permit selective displacement of the same over the ball recess to unlock the ball with movement in either direction. A return spring is disposed between the shank and the sleeve. The spring has a first and second end.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: April 19, 2011
    Assignee: Greatbatch Ltd.
    Inventor: Jeffrey Bennett
  • Patent number: 7926391
    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: Grant
    Filed: April 13, 2009
    Date of Patent: April 19, 2011
    Inventor: Bobby Hu
  • Patent number: 7921751
    Abstract: A ratchet wrench includes a body having a first compartment rotatably receiving a drive member and a second compartment slideably receiving two pawls. A positioning member extends into the second compartment. A switch is slideably mounted to the body and includes two legs extending into the second compartment for moving the pawls. A restraining member is slideably received in the compartment and coupled to the legs to move therewith. The restraining member includes at least two positioning sections selectively engaged with the positioning member corresponding to at least two positions of the switch.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: April 12, 2011
    Inventor: Bobby Hu
  • Publication number: 20110079115
    Abstract: A handled ratcheting tool is able to be used in a standard, L handle or T handle orientation. The handled ratcheting tool includes a handle, a stem, a ratcheting mechanism and multiple tools. Multiple tools are coupled to the ratcheting mechanism which are able to form the L and T configurations depending on which tools are positioned in an open position and which are in a closed position.
    Type: Application
    Filed: October 5, 2009
    Publication date: April 7, 2011
    Applicant: WAGIC, INC.
    Inventors: Ronald L. Johnson, Yugen Patrick Lockhart
  • Publication number: 20110056335
    Abstract: A wrench includes a handle, a yoke, a shaft, a head, a mandrel, a first transmitting unit and a second transmitting unit. The shaft includes a first section securely connected to the handle and a second section rotationally inserted in the yoke. The head is pivotally connected to the yoke. The mandrel is inserted through the head. The first transmitting unit can be used to transmit a small torque to the mandrel from the handle spun relative to the yoke. The second transmitting unit can be used together with the first transmitting unit to transmit a large torque to the mandrel from the handle pivoted together with the yoke.
    Type: Application
    Filed: September 8, 2009
    Publication date: March 10, 2011
    Inventor: Da-Sen LIN
  • Publication number: 20110048179
    Abstract: A ratchet wrench includes a head having a compartment. The compartment includes a first compartment section rotatably receiving a drive member and a second compartment section slideably receiving two pawls releasably engaged with the drive member. A switch is rotatably received in a switch groove formed in a side of the head and in communication with the second compartment section. A reversing plate is rotatably mounted to an engaging portion of the drive member extending beyond the head. The reversing plate includes a control section having a guiding groove. The switch includes a pin slideably engaged in the guiding groove. The switch pivots in the switch groove with the pin sliding in the guiding groove when the reversing plates pivots to control engagement between the drive member and the first and second pawls for controlling a driving direction of the ratchet wrench.
    Type: Application
    Filed: May 12, 2010
    Publication date: March 3, 2011
    Inventor: Bobby Hu
  • Patent number: 7895922
    Abstract: A ratchet wrench includes a body, a ratchet wheel, a control unit, and a rotary knob. The body has an end forming a ratchet wheel bore and a receiving hole, which respectively and rotatably receive the ratchet wheel and the rotary knob therein. A channel is defined in the body between the ratchet wheel bore and the receiving hole for receiving therein the control unit. The control unit includes two detent blocks and a spring. The detent blocks are selectively engageable with teeth formed in the ratchet wheel. The rotary knob retains a control bar and a positioning ball. The receiving hole has an inner circumferential wall in which two positioning notches are defined. The control bar is operated to move the detent blocks to desired positions and the positioning ball is biased by a spring into selective engagement with the positioning notches for proper positioning of the detent blocks.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: March 1, 2011
    Inventor: Wen-Ding Hung
  • Patent number: 7895921
    Abstract: A ratchet tool includes a head and a handle, a ratchet is received in the space and two pawl sets are respectively received in two recesses defined in the inner periphery of the space. Each pawl set has a pawl and a spring which biases the pawl to be engaged with the teeth of the ratchet. Each pawl has a flat surface defined in the end having the engaging teeth. An operation member has a flange which is rotatably engaged with a groove defined in the inner periphery of the space and the flange includes a pressing surface which presses one of the flat surfaces of the two pawls by operating the operation member. By choosing one of the pawls to be engaged with the ratchet, the ratchet tool can output torque in desired direction.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: March 1, 2011
    Inventor: Ping Wen Huang
  • Publication number: 20110030146
    Abstract: A reversible socket wrench is disclosed having a file formed integral with the transverse part of the T-shaped body thereof for smoothing damaged surface or border edge of a skateboard and an adapter hex wrench detachably attached to the socket at the link at the longitudinal part of the T-shaped body by magnetic attraction and used for rotating the socket-head king pin of a skateboard.
    Type: Application
    Filed: August 4, 2009
    Publication date: February 10, 2011
    Inventor: San-Shien Wu
  • Publication number: 20110023664
    Abstract: The present invention provides a ratchet tool, wherein a circular tooth row is arranged into the round groove of the main body's actuating end. A tool driving seat is assembled rotatably onto the round groove of the main body. A first braking slot, a second braking slot and an arched control slot are triangularly configured onto the internal surface of the tool driving seat. The first and second braking slots are separately fitted with the first and second braking swing blocks. A moveable control gear is placed into the control slot and can shift to the through-hole at both ends of the control slot such that it is mated simultaneously with inner tip edges of the first and second braking swing blocks. An elastic resetter is additionally provided to make the first and second braking swing blocks with inner tip edge swing inwards in a normal state.
    Type: Application
    Filed: July 30, 2009
    Publication date: February 3, 2011
    Inventor: Ho-Yi CHEN
  • Publication number: 20100326247
    Abstract: A ratchet wrench includes a parts replacement structure that ensures effort-saved and smooth operation and prevents parts from getting lost. The wrench has a handle having an end forming a head portion that rotatably receives therein a driving collar. A lid plate is fixed to the head portion to retain a pawl member that engages and controls the rotation of the driving collar. The pawl member includes a pusher pad positioned on and movable along a top of the lid plate. A retention block is set at the side of the pawl member opposite to the driving collar to apply a biasing force to the pawl member through a push bar. In this arrangement, the push bar will not get lost when the pawl member disengages from and thus releases the driving collar for replacement.
    Type: Application
    Filed: June 29, 2009
    Publication date: December 30, 2010
    Inventor: Ching-Tseng CHU
  • Publication number: 20100326243
    Abstract: A ratchet wrench has a handle and a ratchet housing that both extend along a first axis. A drive body is connected for rotation relative to the ratchet housing about a second axis, perpendicular to the first axis. A yoke substantially encircles the body and is connected to the ratchet housing and a direction selector is coupled to the drive body and extends along the second axis. The direction selector is rotatable about the second axis with respect to the drive body between a first position, in which the yoke is fixed for counterclockwise rotation with the drive body about the second axis, and a second position, in which the yoke is fixed for clockwise rotation with the drive body about the second axis. A direction actuator is connected to the direction selector for rotation about the first axis to move the direction selector between the first and second positions.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Applicant: INGERSOLL RAND COMPANY
    Inventors: James Francis Bouchard, Douglas Edward Souls, Jefferey Clifford Yaschur
  • Publication number: 20100307297
    Abstract: A tool includes a shank, a driving device mounted on the first end of the shank and including a first ratcheting mechanism including a compartment and a plurality of first teeth in the compartment, and a second ratcheting mechanism rotatably received in the compartment and including a plurality of second teeth engaged with the plurality of first teeth. The first ratcheting mechanism is rotatable relative to the second ratcheting mechanism in a single direction. The second ratcheting mechanism also includes a channel extending therein. A driving head is moveably received in the channel between two releasably fixed positions. In one position, the driving head is adapted to turn an element in a first direction. In another position, the driving head is adapted to turn the element in the second position opposite to the first position.
    Type: Application
    Filed: June 9, 2009
    Publication date: December 9, 2010
    Inventor: Jung-Chi Chiang
  • Patent number: RE42768
    Abstract: A wrench includes a handle, a clutch, a detent, a controller, a gear and a C-ring. The handle includes an annular head defining a circular space, a pothole not overlapping the circular space, a channel for communicating the circular space with the pothole, a recess and an annular groove both defined in a wall of the circular space. The clutch includes two claws put in the recess and a spring put between the claws. Each of the claws includes a toothed face and a rod. The claws can easily be put into the recess since the rods can be moved through the channel. A controller is put rotationally in the pothole for moving the rods. The gear is put in the circular space. The gear includes a toothed face for engagement with the toothed face of one of the claws. The C-ring includes an external edge put in the annular groove, an internal edge for retaining the annular gear in the circular space and a gate projecting from an upper face for blocking the channel.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: October 4, 2011
    Assignee: Infar Industrial Co., Ltd.
    Inventor: Hsiu-Ching Huang
  • Patent number: RE42816
    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. A retainer is mounted around the end of the drive member and has two resilient portions extending into the hole of the drive member via the slots for rotatably holding the drive member in the hole of the head and for securely, releasably holding the fastener-driving member in the hole of the drive member.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: October 11, 2011
    Inventor: Bobby Hu
  • Patent number: RE43286
    Abstract: A ratchet wheel includes an inner periphery and an outer periphery. The outer periphery includes a number of arcuate concave teeth each having two sides and an intersection of the two sides. The ratchet wheel includes a center, a line from the center to the intersection dividing an angle between the two sides into two unequal portions, thereby forming asymmetric arcuate concave teeth to provide improved structural strength and improved torque. In another embodiment, the concave teeth are non-arcuate to reduce the formation time for the teeth, thereby reducing the production cost.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: April 3, 2012
    Inventor: Bobby Hu