Abstract: A ratchet wrench having a rigid locking structure includes a wrench body, a ratchet wheel, a pawl member, and a restoring member. Thus, the support blocks of the pawl member are urged on the wall of the receiving chamber of the wrench body, thereby forming a double-support or multi-support structure between the pawl member and the wall of the receiving chamber of the wrench body, so that the locking teeth of the pawl member are engaged with the ratchet teeth of the ratchet wheel actually, closely, rigidly and stably, thereby increasing the efficient torque of the ratchet wrench, and thereby facilitating the user operating the ratchet wrench.

Abstract: A tool includes a handle having a chamber to receive a block of a tool member which is arranged to be rotated and driven by the handle. A control ferrule is engaged onto the handle and includes a catch engageable with the block of the tool member, to detachably secure the tool member to the handle. The block includes a peripheral groove to receive the catch, and to secure the block of the tool member to the handle. The block includes a peripheral rib having a notch to receive the catch, and to allow the catch to be engaged into the peripheral groove of the block via the notch of the peripheral rib.

Abstract: A reversible ratchet wrench includes a wrench body having a head portion that has a hole and a chamber communicated with the hole. A ratchet wheel is rotatably mounted in the hole of the wrench body. A pawl is moveably received in the chamber of the wrench body and meshed with the ratchet wheel. An annular cover is rotatably mounted on the head portion of the wrench body for preventing the ratchet wheel from escaping out of the hole of the wrench body. The annular cover has a driving member contactable to the pawl for driving the pawl to move to a position where the ratchet wheel can be forced to turn clockwise or counterclockwise.

Abstract: An air-guiding structure for an air sander includes a muffler assembly integrally formed from plastic material, a main passageway and a sub-passageway formed in the muffler assembly, a dust collection port formed at a bottom end of the sub-passageway, and a baffle integrally formed within the main passageway to divide the main passageway into a front section and a rear section. One side of the main passageway communicates with the sub-passageway, and the main passageway has a joint port and an exhaust port opposite to the joint port. The joint port and the dust collection port of the muffler assembly connect to the outlet port and joint port of the air sander, respectively. The baffle is formed with a predetermined number of thin holes to communicate the front section with the rear section, wherein the rear section of the main passageway communicates with the sub-passageway.

Abstract: The device has affair of handles each coupled to a tong, which are movable to clamp or release the target. A ratchet mechanism couples to a handle to re-vector the handle in order to reduce the operational footprint of the device to accommodate obstacles and operate successfully in confined and limited access spaces. Operation of the apparatus allows the action to be accomplished over a variable number of strokes, with the distance of each stroke, and thus the arc of the handles traversed, varying with each stroke, while still accomplishing the desired action.

Abstract: A ratchet wrench is provided which includes a handle having a head on the handle, a rotatable gear disposed in the head and having ratchet teeth, and a pivotable pawl engaged with the gear to allow ratcheting rotation of the gear in a first direction and prevent ratcheting rotation of the gear in a second direction. An obstruction is engageable with a cam surface at the base of the pawl in order to prevent the pawl from self-reversing.

Abstract: An adjustable wrench has a handle having a fixed jaw, a movable jaw, an adjusting worm and an adjusting device. The adjusting worm is received in an opening of the handle and engages with the movable jaw to drive the movable jaw to move along the guiding slot. The adjusting device has an axle portion received in a through hole of the adjusting worm and a wheel portion positioned beside the adjusting worm. The adjusting device is pivoted on the handle via a shaft to be turned along a rotation axle and the adjusting worm is turned along a rotation axle. The rotation axles of the adjusting device and the adjusting worm deviate from each other whereby the adjusting device is turned to move the adjusting worm toward or away from the movable jaw.

Abstract: A ratchet wrench is disclosed. The ratchet wrench is characterized in that the head portion has a tool connector cavity, and has a ratchet cavity adjacent to one side of the handle for communication with the tool connector, the ratchet block is positioned within the ratchet block cavity which can automatically move forward, the top face of the head portion corresponding to the top edge of the ratchet cavity is a notch for engaging with a covering plate; the middle section of the external edge is a tool connector is formed into a position-limiting circular slot, and the ratchet block having a ratchet wall with ratchet teeth is provided with position-limiting block which can correspondingly engage with the circular slot, and the top face of the ratchet block is protruded with a trigger rod passed through the covering plate, and the center of the covering plate is a corresponding T-shaped trigger recess, thereby a ratchet wrench is obtained.

Abstract: A finishing machine having a sandpaper positioning function includes a frame, a rotation wheel rotatably mounted on the frame, a sandpaper bonded on the rotation wheel, and an O-ring mounted on the rotation wheel and urged on the sandpaper. The rotation wheel has a periphery formed with an annular flange radially extending inward. The annular flange has an inner periphery formed with an annular groove. The O-ring is inserted into the annular groove of the rotation wheel and urged on the annular flange of the rotation wheel so as to position the sandpaper rigidly and stably.

Abstract: A ring opener for opening tab-top cans and capped containers having a lip portion for removing a container tab when engaged with the container tab, and a tooth portion for removing a container cap from the container's mouth when applied to the container cap.

Abstract: There is provided an apparatus for polishing a substrate, including (a) a polishing pad formed with a plurality of through-holes through which polishing material is supplied to a surface of the polishing pad, (b) a level block on which the polishing pad is mounted, and (c) a rotatable carrier for supporting a substrate thereon, the carrier being positioned in facing relation with the level block, the level block being rotatable around a rotation axis thereof with the rotation axis being moved along an arcuate path, and causing the polishing pad to make contact with the substrate for polishing the substrate, the polishing pad having a first ring-shaped region concentric thereto where no through-holes are formed. For instance, the first ring-shaped region has a width greater than 10%, but smaller than 95% of a radius of the polishing pad. The apparatus enhances uniformity in polishing a substrate.

Abstract: A method of machining a glass substrate by using a laser, in which a low-permittivity, low-dielectric-loss glass substrate capable of coping with mass production processes is made applicable as the substrate of a high-frequency circuit intended for microwave and millimeter-wave bands in particular. For that purpose, a glass substrate is provided in which the amount of air bubbles in glass is arbitrarily controlled to improve the workability of the substrate itself. Then, the glass substrate is machined while being irradiated with a pulsed laser for a plurality of times, thereby improving the machining shape of the glass substrate. Since glass substrates which are typically difficult to machine can be easily applied to the fabrication of high-frequency circuits, it becomes possible to supply high-performance circuits and apparatuses widely to the public.

Abstract: A holder for semiconductor wafers in an apparatus for chemical-mechanical polishing of semiconductor wafers, having a disk-shaped head, a holding plate and a ring-shaped membrane attached to the carrier section and the holding plate which defines a pressure chamber between these components, the bores in the holding plate being connected with the pressure chamber, a contact membrane of elastomeric gas-impermeable material having a peripheral edge which is fixedly connected to a peripheral portion of the holding plate in a gas-tight manner and engages the lower side of the holding plate.

Abstract: A socket adapter for a ratchet wrench, in which the bottom of the base body of the adapter comprises a coupling portion for engaging with a socket wrench or other liked tools. At the top surface of the base body a locking nut is rotatably disposed for inserting in a drive ratchet of the ratchet wrench. The locking nut is provided with a hexagonal portion at periphery thereof; by rotating the locking nut through a certain angle, the hexagonal portion is accordingly locked manually with any corner of the drive ratchet of the ratchet wrench, such that the socket adapter of the present invention can be detachably fixed in the drive ratchet of the ratchet wrench.

Abstract: A folding multipurpose tool incorporating a latch release mechanism including a lever, a cam, and a rocker-shaped grip body to easily effect release of a catch for holding knife or screwdriver blades extended. A spring and cams are arranged to hold each of a pair of handles either extended or folded with respect to the tangs of a pair of pliers jaws or the like. The handles include inwardly directed comfortable rounded rims. Portions of folding blades interlock with other folding blades on an opposite handle when the tool is folded, to stabilize the handles while using a knife or screwdriver. Blades of folding scissors include edges that are serrated only near their tips. A container opener includes a hook defining a recessed throat.

Abstract: A process for forming printed circuit boards having integral inductor cores. According to the invention, a thin nickel layer is formed on a copper foil. The copper foil structure is then laminated to a substrate such that the nickel layer is in contact with the substrate. The copper foil is removed, leaving the nickel layer on the substrate. Using photomechanical imaging and etching techniques known in the art, NiFe is plated and patterned directly on the nickel layer, thereby forming integral inductor cores of the substrate. This process of the present invention allows for the elimination of several steps used in known processes, while also reducing etch time and minimizing waste of NiFe.

Abstract: An apparatus and method for chemical mechanical polishing in which a substrate is pressed against a polishing pad by a carrier head having a plurality of chambers. A common pressure is applied by the plurality of chambers in the carrier head using a common regulator, but a duration of application of the first pressure to each chamber from the plurality of chambers is controlled independently from other chambers.

Abstract: A bevel edging wheel is described which has differing hardness abrasive matrices on the bevel cutting surfaces. The bevel edging wheel, which is suitable for edge finishing of an optical lens, includes: (1) a hub portion for attachment to a rotary power source: and (2) an outer circumferential cutting surface having a width, the surface including a bevel edging portion including a first abrasive surface and a second abrasive surface adapted for forming a bevel edge on a lens. The first abrasive surface comprises a first abrasive matrix, and the second abrasive surface comprises a second abrasive matrix wherein one of the first abrasive matrix or the second abrasive matrix has an effective hardness greater than the other.

Abstract: A cutting-tool mounting structure includes a cutting-tool base that supports a cutting-tool blade and permits one to pivot the blade about an axis parallel to the cutting direction of the blade and through a range of positions. The range of positions includes a first position where the blade is perpendicular or approximately perpendicular to the cutting surface, a second position where the blade is canted to one side of the first position, and a third position where the blade is canted to the other side of the first position. The tool base includes a motor mount that supports a cutting-tool motor and a blade mount that supports the blade and is rotatably attachable to the motor mount. By rotating the blade mount, the vertical cutting angle of the blade can be made substantially perpendicular to a cutting surface so that the blade can be positioned perfectly plumb for cutting.

Abstract: A detachable combination tool includes a first body, a second body, two locking blocks, and an elastic member. Thus, the second body can be detached from the first body easily and conveniently, so that the second body and the first body can be used independently, thereby facilitating the user operating the combination tool. In addition, the detachable combination tool can withstand a larger torque or force during operation.