| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 081125100 | Double-ended | 12 |
| 20100116099 | BOX END/OPEN END WRENCH - A driving head of a wrench includes three engaging surfaces and three reception concavities alternatively defined in an inner periphery thereof. A recess is defined in a center of each of engaging surfaces and located between first and second engaging portions. The last reception concavity has one of two insides connected to the second engaging portions next to it, the other insides of the last reception concavity is connected with a third engaging portion. The recesses and the reception concavities are sized to accommodate protrusions of a star-shaped nut. The reception concavity is sized to accommodate one of protrusions of a star-shaped nut. The adjacent first and second engaging portions have a common tangent line and three respective common tangent lines are located on three sides of a hexagonal object. The wrench is able to drive the object in two opposite directions without removing the wrench from the object. | 05-13-2010 |
| 20100288084 | Metric-inch wrench - The abstract of this invention is simply that our invention has both metric and standard units of measurements on the same wrench. Thus metric units on one end and standard units on the other. Or any combanition that a manufacture desires to make, thus the consumer does not need to purchase two different sets of wrenches. | 11-18-2010 |
| 20110005357 | Multi-size Wrench - A multi-size wrench is defined with an engaging hole in a head thereof, and an inner surface of the engaging hole of the head is formed by six arc-shaped engaging concaves and six arc-shaped connecting convexes which are alternatively connected to each other in such a manner that between each two neighboring engaging concaves is connected a connecting convexes. An angle between the connecting lines from two ends of the respective arc-shaped engaging concaves to the center of the engaging hole is 50 degrees, and an angle between the connecting lines from the center of the engaging hole to a middle connecting point of each arc-shaped connecting convexes and to a connecting end of the connecting convex is 5 degrees. By such arrangements, the multi-size wrench is applicable to a Metric hexagonal fastener, an English hexagonal fastener and a torx fastener which are correspondingly sized. | 01-13-2011 |
| 20110030515 | Speed wrench including an angled offset - A speed wrench is disclosed having at least one recessive portion inside a speed wrench head of the speed wrench, and at least one engaging portion inside the speed wrench head. The speed wrench also has at least one angled portion providing an angled offset measured from a planar surface that the speed wrench is resting on to the center axis of the speed wrench head. The speed wrench may further be double-sided and may be an open-ended wrench. | 02-10-2011 |
| 20110072940 | Wrench having detachable wrench head - A wrench includes a handle having an end surface defining a socket and an outer periphery defining a hole in communication with the socket, a wrench head having a body portion inserted in the socket of the handle, and a recess aligned with the hole of the handle, and a fastener detachably fastened to the hole of the handle and having a distal end inserted in the recess of the wrench head. Accordingly, as long as the fastener is removed from the hole of the handle, the wrench head can be drawn out from the socket of the handle for maintenance or replacement. | 03-31-2011 |
| 20110120276 | Light Bulb Changer - A device for installing and removing light bulbs. The device preferably comprises a tubular or frustoconical body with a detachable ring positioned proximately to one of the terminal ends. The ring includes a flexible mesh material positioned in covering relation to the opening at the terminal end for frictionally engaging a light bulb of various sizes and shapes. The device can further incorporate an extension attachment for changing light bulbs positioned in elevated locations or means for convenient storage and transportation. | 05-26-2011 |
| 20120079920 | Combination Wrench with Greater Strength and Torque - A combination wrench includes a shank, a first driving member mounted on a first end of the shank, and a second driving member mounted on a second end of the shank. The shank has different cross-sectional profiles and areas from the first driving member to the second driving member so that the shank has different thickness from the first driving member to the second driving member so as to correspond to different forces. Thus, the mediate portion of the shank has a uniform thickness and has greater strength and torque so as to withstand a larger force so that when a stress is concentrated on the mediate portion of the shank, the mediate portion of the shank can tolerate the stress, thereby preventing the shank from being deformed or broken due to an excessive force. | 04-05-2012 |
| 20120325059 | Quasi open-end wrench - An open end wrench having a shank with a smooth planar side, the length of the shank, that functions as a torqueing jaw of opposed wrench heads formed at opposite ends of said shank. | 12-27-2012 |
| 20130269490 | Wrench - A wrench includes a handle, a first driver, and a second driver. The first driver and the second driver are integrally connected to two ends of the handle respectively. An angle between a driving axis of the first driver and a central axis of the handle is α, an angle between one opening end of the first driver and the handle is φ, an angle between a driving axis of the second driver and the central axis of the handle is β, and an angle between one opening end of the second driver and the handle is θ. The angle α and the angle β are located at two sides of the central axis of the handle respectively. The other opening end of the first driver and the other opening end of the second driver are horizontally connected to the handle respectively. | 10-17-2013 |
| 20140060261 | DRIVING HEAD FOR OPEN WRENCH - An open wrench includes integral handle and first driving head. The first driving head has a U-shaped body which has a mounting hole defined therein and an opening communicates with the mounting hole. Each of top surface and bottom surface of the first driving head has a first face and a second face. The second face is a U-shaped face and located along with the mounting hole. The first face is a U-shaped face and located outside of the second face. A U-shaped groove is defined between the first and second faces. | 03-06-2014 |
| 20150336257 | Folding Multiwrenches - A folding multifunction wrench for tightening or loosening a plurality of different sized rotary fasteners, comprising at least two wrench heads attached to their own respective wrench arm with the wrench arms pivotally mounted together at a hinge and pivotal (foldable) to a smaller stowed position or extend to a larger operational position. Individual wrench arms can be used either as a wrench handle or as a wrench tool depending on which end of the wrench the user grasps. During use, the rotational axes of the gripping surfaces on the wrench head can be oriented within ten degrees of being perpendicular to the hinge axis of the two or more wrench arms, whereby torque can be transmitted across the hinge axis for turning the plurality of different sized rotary fastener. | 11-26-2015 |
| 20150343627 | Wrench - The present invention provides a wrench configured to allow a user to apply torque to nuts or bolts in tight spaces. The wrench includes a plurality of pieces that are removably attached including at least one handle shaft, at least one attachment shaft and at least two heads. The plurality of pieces are removably attached via fasteners. Each fastener includes a male adapter configured to removably attach to a female adapter via a ball detent mechanism. Preferably, the male adapter is a square protrusion, while the female adapter is a star-shaped aperture configured to receive the male adapter in a variety of angles. In one configuration, the plurality of pieces are removably attached to one another to form a Z-shape. In this way, a user can apply torque to nuts or bolts in tight spaces. | 12-03-2015 |
