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Having work engaging and force exerting portion inserted into cavity (e.g., allen wrench, screwdriver)

Subclass of:

081 - Tools

081052000 - WRENCH, SCREWDRIVER, OR DRIVER THEREFOR

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
081438000 Having structure adapting portion or tool for separation 25
081451000 With separate means for guiding or gripping work 23
081439000 Including discrete, separately usable inserted portions 15
081460000 Inserted portion having plural, noncollinear blades (e.g., Phillips) 15
081442000 Inserted portion having relatively movable components 9
081437000 Combined with or usable as diverse-type wrench 7
081461000 Inserted portion having plural, separate, work-engaging projections 6
081441000 Inserted portion cuts into or deforms cavity 3
20090211411TOOL FOR REMOVING AND APPLYING A FASTENING DEVICE - A tool for removing and applying a fastening device from and to a threaded stud is provided. The tool includes an elongated chamber and a retainer having a pair of spaced apart portions configured to hold fastening devices within the chamber. The tool further includes a positioning mechanism for positioning stored fastening devices for later installation onto the stud. In one embodiment, the retainer includes a worm gear. Opposing portions of the catch of the worm gear hold the fastening device. The positioning mechanism includes a cam assembly configured to rotate the shaft wherein the rotary movement of the shaft is translated into an axial movement of the fastening device within the chamber. In a second preferred embodiment, the retainer includes a pair of keepers configured to hold a fastening device. The positioning mechanism is operable to feed a fastening device into the keeper.08-27-2009
20090056511TOOL HEAD STRUCTURE - A tool head structure is used to screw a regular screw or a damaged screw and comprises two cutting portions located at the center of the front portion thereof. Between the two cutting portions is formed a ridge line, and behind the two cutting portions are formed two concave flank portions, and the respective flank portions are correspondingly linked up with scraping grooves. By such arrangements, the tool head structure can solve the problems of easy slipping and being unable to remove the damaged screw.03-05-2009
20090100973Device to extract broken fasteners embedded in a workpiece04-23-2009
081450000 Inserted portion mounted to pivot or swivel relative to longitudinal axis of handle 3
20100154604Tool with Adjustable Working Angle - A tool with adjustable working angle is provided with a first rod and a second rod which are pivoted to both ends of a connecting member, so the two rods are able to swing with respect to the connecting member. Furthermore, the swing direction of the connecting member with respect to the first rod is the same as the swing direction of the connecting member with respect to the second rod. Hence, through the pivotal motion between the connecting member and the first and second rods, the wrench of the present invention can be adjusted at different working angles so as to adapt to different working environments.06-24-2010
20120103146HIGH TORQUE SCREWDRIVER - The application discloses a screwdriver that is movable from a first position to a second position. In the first position, the drive shank of the screwdriver is positioned parallel with the elongate handle. In the second position, the drive shank of the screwdriver is positioned perpendicular to the elongate handle, and is selected when additional torque must be applied to the drive shank. Structure of the screwdriver provides enhanced stability for the drive shank supported by the handle.05-03-2012
20100000381Driver with tail - [PROBLEMS] Entire body of a driver is composed of a material which can be sterilized by an autoclave or an ultrasonic cleaner; when the driver is used in a limited space such as in a body cavity, work can be carried out efficiently without causing any trouble with a rotary work, and aspiration aberrant entry can be prevented when the driver body is dropped by mistake; ; and amount of rotation, rotation angle or rotary torque can be recognized even at the molar tooth portion.01-07-2010
081459000 Inserted portion having threaded periphery 1
20090255384TOOL KIT FOR REMOVAL OF BROKEN SPARK PLUGS - A kit for removal of a broken spark plug from a cylinder head includes first and second tools. The first tool is designed to position a broken porcelain element into the spark plug tip so that the second tool may be utilized to engage the tip by threading into the tip and thereafter axially withdraw the plug tip from the cylinder head by rotation of the tool.10-15-2009
Entries
DocumentTitleDate
20130042728SCREWDRIVER BIT - A screwdriver bit has a shank, a connecting portion axially protruding from the shank and a head axially protruding from the connecting portion. A stress dispersion recess is formed in an end surface of the shank. The stress dispersion recess disperses a residual stress present in the screwdriver bit. Therefore, the screwdriver has strengthened structure, good durability and prolonged life for use.02-21-2013
20130042727SCREWDRIVER BIT - A screwdriver bit has a shank, a connecting portion, a necking portion defined between the shank and the connecting portion, a head disposed on a distal end of the connecting portion, multiple ribs separately arranged around the connecting portion and the necking portion and multiple shear grooves respectively defined between the connecting portion and the necking portion and each shear groove is defined between two adjacent ribs. When a torsion force is applied to the screwdriver bit, a shear force formed between the necking portion and the connecting portion is concentrated on points where the ribs and the shear grooves connect with each other in a dot-like form. Therefore, the screwdriver bit has strengthened shear strength and prolonged life for use.02-21-2013
20130025418SCREW HEAD AND TOOL FOR USE THEREWITH - A screw, tool and a system for driving a screw that includes a screw and a corresponding tool is provided. The screw includes a screw head including a slot in the upper surface of the screw head, a tapered recess disposed downwardly of the slot in the screw. The tool includes an upper engagement section which fits within the slot, and a lower engagement section shaped to extend into the tapered recess with a contact surface of an external surface of the lower engagement section in an interference fit with the tapered recess when the upper engagement section is disposed within the slot. The contact surface has a shape which substantially matches any of a plurality of angular inclinations the surface of the tapered recess may have at the interference fit.01-31-2013
20130205954TORQUE TRANSMISSION DRIVER - A torque transmission driver is disclosed. The torque transmission driver has a main body having a first end portion and a second end portion, where the first end portion is adapted to receive and transmit torque from a torque generation source, and the second end portion is opposite the first end portion and has a key shape adapted to fit a recess in a fastener and has a protruding lead end having a taper between 10 and 30 and different in shape than the key shape with at least a portion of the protruding lead end substantially coextensive with the major dimension of the key shape. A torque transmission driver adapted to drive a small fasteners is also disclosed where the key shape is adapted to fit the recess of the small fastener.08-15-2013
20130074662HEX WRENCH HAVING GREATER STRENGTH - A hex wrench includes a handle with a first twist portion having a substantially helical profile through an entire length thereof, a head with a second twist portion having a substantially helical profile through an entire length thereof, and a curved transition portion connected between the handle and the head. A first mounting portion which is a regular hexagonal prism and non-twisted extends integrally from the handle, and a second mounting portion which is a regular hexagonal prism and non-twisted extends integrally from the head. As such, the hex wrench has greater strength and stiffness without reducing its malleability so as to prevent the hex wrench from being cracked or broken due to an excessive applying force.03-28-2013
20090095138INSULATING SCREWDRIVER HAVING WEAR IDENTIFICATION FUNCTION - An insulating screwdriver includes a handle, a drive shank having a first end mounted in the handle and a second end protruding outwardly from the handle, an insulating jacket mounted on the second end of the drive shank, and an identification insulating sleeve mounted between the second end of the drive shank and the insulating jacket. Thus, when the insulating jacket is worn out or broken due to friction or hit, the identification insulating sleeve is still located outside of the drive shank to provide a secondary insulating effect to the drive shank so as to protect the user when operating the drive shank.04-16-2009
20110011219SCREWDRIVER - A screwdriver includes a locking member, a positioning member, a retaining member, and a rotatable member. The locking member defines a locking member hole therein. The positioning member is received in the locking member hole, and defines first and second positioning member holes. An angled surface is located between the first and second positioning member holes. The retaining member secures the positioning member to the locking member, and defines a retaining member hole to receive the positioning member. The rotatable member is received in the first positioning member hole, and slidable to abut the angled surface to slide the positioning member from a first position where the rotatable member is positioned in the first positioning member hole, to a second position where the rotatable member is positioned in the second positioning member hole so as to splay the second positioning member hole.01-20-2011
20080295653Hand tool with bit release device - A hand tool includes a socket which is connected to a head of the hand tool and the socket includes first and second recesses in two ends thereof and a passage is defined in communication between the first and second recesses. A push rod includes a head and a shank which extends through the first recess, the passage and is inserted in the second recess in which a bit is inserted. A spring is mounted to the shank and biased between the head and an inner end of the first recess. The screw bit can be quickly pushed out from the second recess of the socket by pushing the push rod toward the screw bit.12-04-2008
20120090435SCREW AND SCREWDRIVER FOR SCREWING AND UNSCREWING THE SCREW - The invention relates to hand tools and to threaded fasteners, and comprises a screw and corresponding screwdriver. The screw comprises a head and a threaded working end. The head slot for inserting the screwdriver is made in the form of a “dove tail.” The working section of the screwdriver for screwing and unscrewing the screw is made as a mirror image of the screw head slot, with the same angle of slope. The invention lengthens the life of screwdrivers and screws and their serviceability.04-19-2012
20110271800HEXAGONAL WRENCH - A hexagonal wrench has a head. The head has an end surface, six equal side surfaces and at least one groove. Each side surface has a left edge segment and a right edge segment adjacent to the left edge segment of an adjacent side surface. The at least one groove is formed in at least one of the right edge segments and the left edge segments and extends to the end surface. Therefore, the head can engage securely an inner surface of a socket to rotate the socket even when the socket is worn or rounded.11-10-2011
20090031867MULTI-FUNCTION SCREWDRIVER - A screwdriver has an elongate handle generally defining an axis and a substantially uniform elongate shank arranged along the axis. One end of the shank is embedded within the handle and defines a cylindrical surface and having another end provided with a driver tip arranged within a cylindrical envelope defined by the cylindrical surface and is configured for engaging and driving a fastener by rotating the fastener about an axis substantially coextensive with the handle axis. An auxiliary driver means is arranged within the cylindrical envelope for driving a fastener about an axis substantially normal to the handle axis.02-05-2009
20120096996Fastener turning tool with a surface protective collar - A fastener turning tool has a handle with an extending shaft and a protective collar. A working end of the shaft is provided with a tip that is configured to engage a fastener. A longitudinally extending slot is formed in the shaft between the handle and the tip. The protective collar is slidably received on the extending shaft. A guide member fixed to said collar is slidably received in the longitudinally extending slot and constrains the collar for limited sliding on the shaft. A compression spring is held on the shaft between the collar and the handle. The spring is normally expanded and holds the collar down beyond the tool tip. When the collar is compressed, position, the tool tip is exposed for engagement with the fastener.04-26-2012
20090165604Engaging portion of a screwdriver - An engaging portion of a screwdriver formed for engagement with a work-piece such as a screw, is described. The engaging portion comprises an imaginary central axis, a tip, a front face, a rear face, and a profile shape when viewed from a front view thereof. The tip has two outer ends. The profile shape is defined by the tip and two profile sides. Each profile side extends from an outer end of the tip, for at least a short distance, at a predetermined relationship to the central axis. Each face comprises side outer engaging edges. Each outer engaging edge extends from an outer end of the tip, for at least a short distance, at a predetermined relationship to the central axis. And, when viewed from a front view thereof the predetermined relationship of each profile side to the imaginary central axis is different than the predetermined relationship of each outer engaging edge to the imaginary central axis.07-02-2009
20110197721TOOL BIT - A tool bit includes a hexagonal drive portion, a working end, and a shank interconnecting the drive portion and the working end. The shank includes an outer peripheral surface having a curvature in a plane including a central axis of the tool bit. The outer peripheral surface having the curvature includes a length in the direction of the central axis. A ratio of the length of the outer peripheral surface having the curvature to the length of the tool bit is between about 0.2:1 and about 0.7:1.08-18-2011
20090165605Screwdriver with torque-enhancing sidewall edges - An engaging portion of a screwdriver formed for engagement with a work-piece such as a screw, is described. The engaging portion has an engaging tip, a front face, a rear face and opposing side walls. Each side wall has a front groove and a rear groove. Each groove has a wide region and a narrow region with the narrow region located closer to the tip than the wide region so as to create a torque-enhancing side wall edge.07-02-2009
20130213193TAPERED LOBULAR DRIVER AND FASTENER - A torque transmission driver has a first end portion adapted to receive and transmit torque from a torque generation source, and a second end portion including a shaped tapered bit having drive surfaces with an alternating series of five or six lobes and troughs about a rotational axis, having a taper angle between 15 and 45° from the rotational axis operable to engage corresponding drive surfaces in a plurality of at least two size fasteners, the tapered drive surfaces of the bit comprising a first tapered portion operable to engage drive surfaces of a first sized fastener and a second tapered portion operable to engage drive surfaces of a second sized fastener, the drive surfaces of the second sized fastener being larger than the drive surfaces of the first sized fastener.08-22-2013
20090183609Radial foldout tool - A radial foldout tool includes a body with opposing ends and one or more sets of tool drivers. A first set of tool drivers are positioned on/near a first end and a second set of tool drivers are positioned on/near a second end. The tool drivers are contained within channels of the body when in a closed position. The tool drivers are also contained in a plurality of planes. The tool drivers open by rotating/moving in a direction at least perpendicular to a neighboring tool driver. When they are in an open position, each of the tool drivers are in/near the center of the end of the body. By being positioned in/near the center of the end, the radial foldout tool is able to be gripped and turned in a fashion similar to a standard screwdriver.07-23-2009
20090211410BATTERY-OPERATED SCREWDRIVER AND CHARGER SHELL THEREFOR - A battery-operated screwdriver has a housing with a handle, a rechargeable battery, charge contacts for charging the battery on a charger shell having at least one detachably mounted bit holder for storing tool inserts of the battery-operated screwdriver in captive fashion, so that the battery-operated screwdriver is placeable on the charger shell and a charging mode is produced automatically, and a charger shell for a battery-operated screwdriver has at least one detachable mountable bit holder configured to receive a plurality of bits which in operation are insertable in communication with the battery-operated screwdriver.08-27-2009
20110000345SINGLE-BIT RETRACTABLE SCREWDRIVER - A single-bit screwdriver comprising: a housing; a shaft slideably mounted in the housing; the shaft having a locking portion, and the housing having at least two locking mechanism, wherein each locking mechanism engages the locking portion to prevent sliding of the shaft relative to the housing.01-06-2011
20110174120TURN-ASSISTED DRIVER - With a structure capable of idly rotating a main body which is lower than a handle even when fixing the handle in a palm of a hand, a screwdriver can be retained by pushing the handle and rotated at the same time. Therefore, a finger force for retaining the screwdriver is not necessary. The screwdriver can be rotated by one hand. Since a clip chuck for setting the screwdriver is formed in an impeller shape, fingers can be suspended for rotation. Since the rotation can be performed not by grasping but using muscles of the entire hand, fatigue of the muscles can be reduced.07-21-2011
20110259161Screwdriver - A screwdriver comprises a shaft, and a handle core, a handle body and an outer layer formed on the shaft by injection molding. The multilayer structure of the screwdriver prevents the impact force from being transmitted to the user's hand and causing discomfort, and can relieve the discomfort caused by the impact force applied to the screwdriver while reducing the impact force loss during impact operation.10-27-2011
20090078095SCREWDRIVER MADE BY NON-CONDUCTIVE MATERIAL - A screwdriver includes a handle and a shank has one end integrally connected to the handle, a function end is connected to the other end of the shank. The handle and the shank are made by Polyphenylene Sulfide (PPS), Polytetrafluoroethylene (PTFE) or Polyetheretherketones (PEEK), the function end is made by Polyoxymethylene (POM). The screwdriver is light and non-conductive.03-26-2009
20100018366RATCHET SCREWDRIVER WITH AN ACCELERATING STRUCTURE - A ratchet screwdriver with an accelerating structure is provided, in particular to one combined a ratchet seat and a solar gear system. The ratchet seat controls the operating direction, and the solar gear system increases the output rpm for a user to choose high or low revolution to facilitate tightness or looseness of a screw.01-28-2010
20090173192ANTI-LOOSE AND ANTI-DETACHMENT INSULATED SCREWDRIVER - An anti-loose and anti-detachment insulated screwdriver including a main body made of insulation material, a shank body enclosed in the main body and a driving member having a top end as a driving end. A bottom end of the driving member is connected with a top end of the shank body. The main body has a handle section and a stem section. A top end of the stem section of the main body encloses a circumference of the driving member with the driving end of the driving member exposed to outer side of the main body. The main body is connected with the shank body by greater connection strength so that the shank body can bear greater twisting force. The shank body has such a configuration that the total weight of the insulated screwdriver is reduced.07-09-2009
20110154959Hex Wrench Having Greater Strength - A hex wrench includes a handle (06-30-2011
20120255402THREAD PROTECTOR MANIPULATION TOOL - A system is provided to facilitate the substitution of power tools for manual manipulation of thread protectors on threaded tubulars. Male-thread protectors are manipulated using a driven cup with a flexible inner liner to engage the protector, the cup having expansion and gripper features. Female-thread protectors are manipulated using a driven elastic body fittably engaged with the inner surface of the protector. The manipulators are fitted with tool adapters to fit power tools such as an impact wrench.10-11-2012
20090145270Torque reducing and stabilizing screwdrivers and slotted threaded fasteners and related methods - Novel screwdrivers used in combination with novel threaded fasteners are disclosed, both of which comprise male and female stabilizing segments which contiguously match male and female torque-applying segments which contiguously match.06-11-2009
20130019721TILTING SCREW BIT AND SCREW BIT HOLDER - The present invention provides a screw bit and holder system wherein the screw bit is capable of tilting or swiveling in order to work at angles off of perpendicular to a screw head. The base of the bit is rounded with sides that are flat to prevent rotating the bit while allowing a tilt.01-24-2013
20120247285UNIVERSAL BROKEN LIGHT BULB EXTRACTOR - A utility grip for extracting broken light bulb structures from all size sockets which can be either gripped with the hand or mounted on standard extension poles and handles for distance extractions. The utility grip engages the broken light bulb structure at whatever remaining structure is left and with a counterclockwise turn the structure to be loosened from the structure. The utility grip can accommodate light bulb sizes of 1.5v to 300v. In the specification, other uses are loosening threaded components such as bottle and container caps, funneling liquids and granulates into small and narrow-necked containers, and holding various household items.10-04-2012
20120247284INTERLOCK DRIVING INSTRUMENT - An interlock driving instrument is configured to be releasably lockable to a fastener, such as a bone anchor. A bone anchor can be locked to the interlock driving instrument by inserting an expandable distal end of the shaft of the interlock driving instrument into the driving opening of the bone anchor and expanding the distal end within the driving opening by translating an expansion member into the expandable distal end. Alternatively, the bone anchor can be locked to the interlock driving instrument by inserting the distal end of the shaft of the interlock driving instrument into the driving opening of the bone anchor and translating a sliding member along a sloped surface defined in a channel extending into the shaft.10-04-2012
20130133487Tool Head Structure - A tool head structure includes a body and an assistant rotary member pivotally mounted on a drive end of the body in an eccentric manner. When the tool head is inserted in a worn out hole, and the user rotates the tool head, the assistant rotary member will be pivoted into an eccentric position with respect to the drive end of the body, so that the contacting area of the tool head for contacting the worn out hole is increased, which makes the tool head of the present invention more applicable to the worn out hole as compared to conventional ordinary tool head.05-30-2013
20120279364Screwdriver Blade with Inclined Drive Surfaces and Method of Manufacturing - A screwdriver blade has faces formed on front and back sides of a shank. Each face has a drive surface extending from each side edge inward toward a longitudinal axis. Each drive surface is inclined relative to a plane containing the axis and bisecting each of the side edges. A thickness of the blade increases from the shank distal end. Each of the drive surfaces appears curved when viewed in a distal end view. Each of the drive surfaces extends from the shank distal end to a face proximal end. A central portion between each of the drive surfaces may also appear curved when viewed in a distal end view, or it may be flat. The drive surfaces and the central portion may be formed at a single radius of curvature. The central portion may have a increasing width from the distal end or it may have a constant width.11-08-2012

Patent applications in class Having work engaging and force exerting portion inserted into cavity (e.g., allen wrench, screwdriver)

Patent applications in all subclasses Having work engaging and force exerting portion inserted into cavity (e.g., allen wrench, screwdriver)