| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 081580100 | With additional head-turning means | 9 |
| 20090139376 | SELF-CONTAINED HYDRAULICALLY OPERATED TOOL - A compact, hydraulically operated tool for use in hard-to-reach or compact spaces. | 06-04-2009 |
| 20100031782 | Positioning Device for Rotary Wrench - A rotary wrench includes a handle having a clamping portion with two arms. Each arm includes a holding portion having a hole. At least one of the holding portions includes a positioning section. Two axles are respectively formed on two sides of a head and rotatably engaged in the holes. At least one of the sides of the head includes a positioning portion releasably engagable with the positioning section so that the head is rotatable relative to the handle about an axis and positionable relative to the axis in one of a plurality of angular positions surrounding the axis. An adjusting member is mounted to the arms and operable to adjust the spacing between the arms to move the arms between a clamping position clamping the head and a releasing position not clamping the head. | 02-11-2010 |
| 20100282027 | ATTACHMENT SYSTEM FOR RATCHET TYPE WRENCHES - A drive system cooperating with the drive mechanism of a ratchet wrench enables a user to use the wrench for its intended purpose and also spin the drive at high speed by pulling an endless belt. The belt is contained in a manner which causes structures on the belt to engage with exposed gear teeth of the ratchet wrench or an attachment. The containment structure provides for proper alignment and positioning of the belt to allow for the desired engagement with the drive teeth even after the user releases grip from the belt. The containment structure further allows an opposite end of the belt to hang loose and thus be easily accessible by a user. The drive system can be used on a socket ratchet without exposed teeth by adding gear teeth to a ratchet drive member or socket either permanently, as an added part or as an extension to the socket ratchet or socket. | 11-11-2010 |
| 20110056335 | Wrench for Providing Two Operative Modes - 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. | 03-10-2011 |
| 20110088518 | SYSTEM TO ENABLE HIGH SPEED OPERATION OF SOCKET TYPE RATCHET WRENCHES AND OTHER TOOLS - A drive system cooperates with other tools, such as the drive mechanism of a socket type ratchet wrench to enable a user to use the wrench for its intended purpose at high speed by pulling an endless belt. The belt is contained within a chamber created by the attachment system in a manner to allow the belt to engage with an outer surface of a pulley. The pulley connected to the drive shaft of the socket type ratchet wrench to cause force to be transferred from the belt to the wrench drive shaft. The system utilized a cover operably coupled to the pulley to contain the belt while minimizing interference with the wrench. The cover contains the belt while also allowing an opposite end of the belt to hang loose and thus be easily accessible by a user. | 04-21-2011 |
| 20130139653 | Double Action Internally Geared Rotary Tool - The invention provides a ratchet tool that includes a tool head, a drive including a sun gear, a ratchet mechanism, and planet gears mounted to a carrier and meshed with the sun gear. The tool head has drive teeth meshed with the planet gears. The ratchet mechanism is mounted to the tool head and is operative to directly couple the tool head to the input when the tool head is rotated in a first direction and to uncouple the tool head from the input when the tool head is rotated in a second opposite direction. Rotation of the tool head in the second direction, while the user holds the carrier stationary, rotates the drive in the first direction. | 06-06-2013 |
| 20140123816 | WRENCH DEVICE WITH A PLURALITY OF DRIVING HOLES - A wrench device with a plurality of driving holes includes a wrench body having two first through holes, each first through hole having an opening end and a positioning end which having two positioning grooves defined thereon, the two positioning grooves corresponding to each other, two actuating member having two driving holes and a positioning block, each driving hole having a first ratchet ring and a second ratchet ring, each positioning block passing through each corresponding first through hole, each positioning block having a positioning slice, a flexible assembly received into the positioning block. Under this arrangement, a user rotates the actuating member relative to the wrench body so as to change the driving hole, so that the user unlocks the screws with different size rapidly and easily. | 05-08-2014 |
| 20150314426 | RATCHET WRENCH - A ratchet wrench includes a wrench member, a driving shaft, a rotary member, two first paws, a grip, and a second paw. The wrench member has a ratchet hole, an axial hole, and first inner teeth on a sidewall of the ratchet hole. The driving shaft is received in the axial hole of the wrench member. The rotary member is received in the ratchet hole of the wrench member, and has annular teeth to engage a gear of the driving shaft. The first paws are provided on the barrel, and each has first outer teeth to engage the first inner teeth of the wrench member. The grip is pivotally connected to the wrench member, and has second inner teeth. The second paw is provided on the driving shaft, and has second outer teeth to engage the second inner teeth of the tube. | 11-05-2015 |
| 20160046005 | HAND TOOL WITH RATCHETING FEATURE - A hand tool includes a handle, a tubular member, a driving rod and a return unit. The handle has a passage, a pressing recess, a releasing recess, an engaging recess and a first hole. A tubular member extends through the passage and has a through hole, a bead hole, an annular groove, a first wall and a second wall. The driving rod is inserted through the through hole and has a spiral groove and straight slots which communicates with the spiral groove. A bead is located in the bead hole and magnetically attracted by a magnetic member located in the first hole. The return unit is used to return the driving rod. A C-clip is movably located in the engaging recess. The handle is located at a press position or a release position relative to the tubular member when the C-clip contacts the first wall or the second wall. | 02-18-2016 |
