Abstract: A method and device for magnetizing a tool bit. A housing is adapted for removably fitting around a magnetically attractive tool bit, and a plurality of magnets are disposed in the housing and adapted for making contact with the surface of the bit, to strengthen the magnetic coupling of the magnets to the bit. The device preferably remains on the bit while employing the bit, and is especially adapted for high speed use.

Abstract: In order to facilitate the removal of a fastener of the type having a head on a shank, a tool for removing such a fastener is disclosed. The tool includes support for a collet which makes it possible to impart torque for removal of the fastener through rotational movement of the collet in relation to the head of the fastener. Further, the collet is adjustably positioned on the support and is dimensionaly adjustable for gripping the head of the fastener.

Abstract: A ratchet screw driver includes a driving stem having a gear rotatably engaged in the bore of a handle and having a free end end for engaging with a fastener to be driven. A ratchet mechanism is engaged in the handle and engaged with the gear of the driving stem for selectively driving the driving stem. A barrel is rotatably engaged on the driving stem and movable along the driving stem for engaging around the fastener and for preventing the fastener from being tilted and for preventing the fastener from hurting the hand of the user.

Abstract: A screwdriver adapted to be coupled to an electric drill for automatic rotation thereof including an interior member having a lower extent with a circular cross-section and a screwdriver tip at its end. The interior member has an upper extent of an enlarged cylindrical shape with a hexagonal component extending rearwardly thereof. An exterior cylindrical member of the screwdriver has a lower extent of a reduced diameter and an upper extent of an enlarged diameter and has an interior bore extending therethrough. The bore of the upper extent is adapted to receive the upper extent of the interior member and the lower extent of the exterior cylindrical member is adapted to receive the lower extent of the interior member with the screwdriver tip extending through the lower end thereof.

Abstract: A driver tool has one or more magnets mounted or embedded within a conventional handle for providing a magnetizing and demagnetizing field, such fields being formed by permanent magnets which have energy products equal to at least 7.0.times.10.sup.6 gauss-oersteds. Magnets may be embedded within the handle and have polar surfaces exposed to provide the desired fields where the handle may be formed with one or more openings in which the fields are generated.

Abstract: Screw fastener jaws for the driver head of an automatic screw feeding and driving apparatus are disclosed for driving screws in face frame drilled holes. A tubular mandrel communicates with a screw feeding passage and a screwdriver passage at a first end to feed screws into the channel and then drive the screws. Spring action moves a plate to close off the free end of the channel to capture the screw. The plate is wide enough to engage the workpiece surface on both sides of the slanted hole. As the mandrel is advanced into the slanted hole, the plate is forced away from the end of the mandrel, releasing the screw for driving into the workpiece.

Abstract: A composite magnetic-field screwdriver (10) that consists of two elements: a non magnetic-conductive housing (12) and a selectable, magnetic-conductive tool bit (100). The housing (12) includes a tool bit cavity (80) that accepts the tool bit (100) and a drill-chuck connector sleeve (48) into which is frictionally inserted a non magnetic-conductive drill chuck connector (88). The housing (12) includes an upper ring magnet (60) and a lower circular magnet (84). The two magnets operate in combination to produce a composite magnetic flux path. The composite magnetic flux path is activated only when a workpiece (250) is attached to a tool bit (100) that has been inserted into the tool bit cavity (80). The composite magnetic flux path results in a high-level gauss at the bit's upper section which allows the workpiece i.e., a screw to be firmly attached to the tool bit (100).

Abstract: A tool for affixing a component to a dental implant fixture with a screw passing through the component and threaded into the implant fixture, in which the tool has two parts telescopically interfitting one within the other, the outer part being tubular for carrying the component at one end, and the inner part fitted at one end for carrying the screw positioned within the component, whereby the component and the screw within it can be carried together to the implant fixture where the outer part is used to hold the component in place while the inner part is used to drive the screw relative to the implant fixture.

Abstract: A clutch driver device for releasing torque between a power drill and a screwdriver when the screw being driven reaches a predetermined depth. The clutch mechanism including a hollow release cylinder slideably fitted on a drive shaft integrally formed in coaxial relation with a chuck shank to be inserted into the chuck of a power drill. The release cylinder is movable from a first position where the release cylinder holds several clutch balls against planar faces of a hexagonal end of a drive shank used to drive the screw into the work piece to a second position where the release cylinder releases the clutch balls held against the planar faces of the drive shank so that the screw driving end of the driver is disengaged from the power drill. The release cylinder being moved from the first position to the second position by an actuator sleeve positioned between the work piece and the release cylinder.

Abstract: A self-retaining screwdriver having a plurality of diametrically opposed, radially extending blades on its tip for engagement with corresponding slots of a screw or other fastener, wherein the blades vary radially in thickness. The screwdriver also includes diametrically opposed, radially extending blades of constant thickness arranged perpendicular to the blades of radially varying thickness. Tapered blades having a thickness which increases with distance from the screwdriver axis are disclosed in one embodiment in which the blades also have a convex end surface, for use with a screw having a convex head.

Abstract: An eagle wing tips tamper-proof fastener and driver tool with complementary driver head contact for operating the same. A conventional threaded shank is perpendicularly connected to a substantially flat head. The head comprises a plurality of recessed channels numbering three and the channels radially curve outwards from a common center point. In one embodiment, the substantially vertical right and left walls of each channel allow application of torque with the driver tool in both directions. In an alternate embodiment, the substantially vertical right wall and the surface of the substantially inclined left wall allow application of torque with the driver tool to the right only.

Abstract: A driving system and method for endoscopically inserting threaded suture anchors. The driving system incorporates a tubular guide adapted to receive a cylindrical drive shaft having a drive portion at its distal tip for engaging a threaded anchor and a stop member at its proximal end for enabling rotational motion of the drive system relative to the drill guide while limiting longitudinal motion beyond a predetermined point. The stop member is, in the preferred embodiment, an annular shoulder which prevents the drive shaft from advancing the anchor into the bone more than a desired amount sufficient to countersink the anchor below the bone surface. The invention facilitates use of a drive shaft having a minimized shaft diameter. The invention also comprises a method of using the driving system, the method comprising the steps of both turning and longitudinally limiting the motion of the driver from the proximal side of the driver.

Abstract: A one-piece socket having a hole therethrough with a rear recess for receiving the shaft of a driver tool, and a front recess for receiving the head of the workpiece (bolt) to be worked on. The hole includes a small segment for securing a key therein, the key being adjustable to extend into the front recess, and therebeyond to the exterior, selectively. The front recess engages convex surfaces on the workpiece and the key engages concave surfaces thereon. In an alternate form, the key is fixed and extends only into the recess.

Abstract: A tool for affixing a component to a dental implant fixture with a screw passing through the component and threaded into the implant fixture, in which the tool has two parts telescopically interfitting one within the other, the outer part being tubular for carrying the component at one end, and the inner part fitted at one end for carrying the screw positioned within the component, whereby the component and the screw within it can be carried together to the implant fixture where the outer part is used to hold the component in place while the inner part is used to drive the screw into the implant fixture.

Abstract: A tool for use with an integral reusable locking arrangement between the guide tubes and upper end fitting in a nuclear fuel assembly. A positioner on the tool locates the tool on the upper end fitting grillage and aligns a wrench on the tool with projections on a spring collar used in the locking arrangement. The wrench on the lower end of the tool has slots that engage with the reusable locking arrangement on the guide tube upon application of downward pressure on the tool driver. Rotation of the driver causes corresponding rotation of the spring collar on the reusable locking arrangement for locking or unlocking of the upper end fitting in place relative to the guide tubes. Axial and rotational motion of the driver is limited by interaction between a set screw on the positioner and slots in the driver. Upward motion of the driver disengages the wrench from the spring collar for removal of the tool.

Abstract: A screwdriver, or an adaptor for fitment to a screwdriver, having a shaft portion and drive blade and sleeve device slidably mounted on the shaft portion so that it can extend beyond the end of said drive blade in order to prevent the screwdriver blade from slipping off a screw and to enable the screw to be driven with substantial force from the start. The sleeve may also be rotationally coupled with the shaft portiion.

Abstract: In order to remove a one-way fastener of the type having a generally circular head with a flat upper surface portion and a convex upper surface portion, a security fastener removal tool is disclosed. The tool includes a shank having an end to be placed in engagement with the head of the one-way fastener. The end of the shank has a pair of fastener-engaging tips extending therefrom for mating engagement with a corresponding pair of tip-receiving recesses in the head of the one-way fastener. The tool also includes a generally cylindrical collar which is disposed so as to fully surround the pair of fastener-engaging tips. With this arrangement, the collar has an inner surface diameter substantially the same as the fastener head outer diameter, and the inner surface of the collar is adapted to grip the head of the one-way fastener.

Abstract: A fastening system comprises a driving tool formed with a rectangular-shaped bit at its driving end, and a fastener such as a screw whose head is formed with a recess defining a central slot and four spaced undercuts each having parallel upper and lower walls and a side wall perpendicular thereto. The bit of the driving tool is inserted within the central slot of the recess and then rotated such that the side edges of the rectangular bit contact the side walls of two of the undercuts, and the top wall and bottom surface of the bit frictionally engages the upper and lower walls of such undercuts. Frictional engagement between the undercuts and the driving tool bit provides a positive, temporary interlock therebetween, and contact between the side edges of the driving tool and side walls of the undercuts permits the transfer of torque over a large surface to reduce wear.

Abstract: A tool for affixing a component to a dental implant fixture with a screw passing through the component and threaded into the implant fixture, in which the tool has two parts telescopically interfitting one within the other, the outer part being tubular for carrying the component at one end, and the inner part fitted at one end for carrying the screw positioned within the component, whereby the component and the screw within it can be carried together to the implant fixture where the outer part is used to hold the component in place while the inner part is used to drive the screw into the implant fixture.

Abstract: The stuffing tool transports and packs stuffing material into cavities of fabric dolls, animals, pillows, or other creations. The three sections of the stuffing tool are: the handle (20), the shaft (30), and the tip section (40).The handle (20) is made of a rigid material and is attached to the shaft (30) in the normal position of handles.The shaft (30) is made from a rigid material and is long enough to reach into the normal cavities of fabric dolls, animals, pillows, or other creations.The tip section (40) is made from a rigid material. The tip section (40) has a series of fluted ridges (40A) which extend outward from the shaft (30), grooves (40B), and a counter-sunk hole (40C) to allow it to grab the stuffing material and transport it to the interior of the cavity.The stuffing tool is made in several sizes and finishes.

Abstract: An elongate tubular housing includes a housing first end spaced from a housing second end coaxially aligned to mount rotatably a shaft, wherein the shaft is arranged for projection through the first end, with the shaft having a screw driver bit driver at the shaft second end recessed below the housing second end in a first position, wherein the shaft is arranged for reciprocation within the shaft for projection therefrom to extend the shaft in a screw driving procedure, with the shaft including a handle for manually securing the shaft during a driving procedure.

Abstract: A tool is provided for installing a positioning disk on a skid and the tool includes outer, intermediate and inner telescopingly engaged members with outer member including first and second ends in which tubular first and second abutment plugs, respectively, are removeably secured. One end of the intermediate member is disposed between the plugs and has a weight and impact sleeve secured thereabout for impacting with the plugs and the intermediate member projects outwardly out of the plug secured in the first end of the outer member and has diametrically opposite longitudinal slots formed therein through which the opposite ends of a diametric support shank carried by the inner member extend. The support shank ends are slidably received in the slots and have axial hand grips carried by the terminal ends thereof outwardly of opposite sides of the intermediate member, the latter also being rotably received within the outer member.

Abstract: Squeaks in a floor or stair are eliminated by driving screws in the area. At least one scored screw to be driven into the squeak area combines with a specialized driving bit and a alignment and depth control fixture to eliminate the squeak. The alignment and depth control fixture can be used to direct the scored screw to the proper point while the driving bit can stop driving the screw at the desired position. After the alignment and depth control fixture is removed, the screw is broken at the prescored position. To minimize damage to an in place carpet, a tape is wrapped around the threads of the screw.

Abstract: At least one scored screw is driven into the squeak area with a specialized driving bit and an alignment and depth control fixture. The alignment and depth control fixture is used to direct the scored screw to the proper point into the floor so that the scored area is at or beneath the surface of the floor. The driving bit can stop driving the screw at the desired position. After the alignment and depth control fixture is removed, a gripping tool is used to apply force to the screw and break the screw at the prescored position. The barrel of the screw being left in the floor locks the floor or the step to the desired support. One screw or series of these screws in usually an arcuate or a radial fashion around the squeak area, can eliminate the squeak.

Abstract: A fastener driving tool which uses the mechanical advantage of a lever to aid in the loosening and tightening of screws, bolts, nuts, and the like. The tool amplifies the force of a user that is exerted on a fastener bit (e.g. screwdriver blade) and a fastener head (e.g. screw head) thereby reducing the chance of the fastener bit slipping off the fastener head. A lever arm has a first end which attaches to an adjacent nearby screw or bolt. The fastener bit is attached to the lever arm and engages the targeted fastener head. The fastener bit functions as the fulcrum (i.e. the support about which the lever turns) of the lever arm. The user exerts downward force on the second end of the lever arm while using a conventional torquing tool (e.g. screwdriver, wrench, etc.) to loosen or tighten the hard to turn fastener.

Abstract: An improved screwdriver in which a replaceable bit is removable secured to a mandrel by the bit being axially slidable in an axial socket in the end of the mandrel. A resilient split-ring which serves to retain the bit in the socket is carried by and replaceable with the bit. With each new bit a new split-ring is also provided.

Abstract: A fastener support apparatus for facilitating the installation of individual screws into a work surface which includes a rotatable bit for engaging the head of the screw; a housing borne by the rotatable bit and defining a passageway, and wherein the bit is received in the passageway and the housing simultaneously rotates with the bit; a screw support assembly movably borne by the housing, the screw support assembly including a passageway defining a screw receiving station and which is operable to receive the head of the screw; a locking assembly movably borne by the screw support assembly and operable to travel from a first, partially occluding position relative to the screw receiving station to a second, substantially nonoccluding position; and an actuating assembly movably borne by the screw support assembly and which positions the locking assembly in the first or second positions.

Abstract: A power transmission tool for the installation and removal of a spanner nut (15) on a threaded end of a drive shaft (27) comprises a torque reactor plate (32) with a central threaded aperture (35,37) for threaded engagement with a wrench shaft (39). The pitch of the wrench and reactor plate threads (37,39) is the same as the pitch of the drive shaft and spanner nut threads. The reactor plate (32) is fastened (60,63,65) to a drive flange (20), the flange being mounted on an end of the drive shaft and having splines to prevent relative movement therebetween. An aperture (73) is formed in the torque reactor plate for receiving a bar which is used to react the torque applied to the drive shaft/flange combination by the wrench via the nut, thereby preventing rotation of the flange and shaft combination when torque is applied to the wrench.

Abstract: A tool for affixing a component to a dental implant fixture with a screw passing through the component and threaded into the implant fixture, in which the tool has two parts telescopically interfitting one within the other, the outer part being tubular for carrying the component at one end, and the inner part fitted at one end for carrying the screw positioned within the component, whereby the component and the screw within it can be carried together to the implant fixture where the outer part is used to hold the component in place while the inner part is used to drive the screw into the implant fixture.

Abstract: A screw holding and driving device for use with powered drills including a slidable transparent sleeve mounted in concentric relation with a screw drive shaft of the device. The sleeve is provided with an internal surface that is fluted with the fluted surfaces extending parallel to the longitudinal axis of the cylindrically shaped sleeve. The inner surfaces with larger radii remain clear of the shaft and thus will not be scratched as the shaft moves relative to the sleeve. Further, a split ring of oval construction is provided for holding the sleeve on the shaft. The ends of the split oval retaining ring are sized to fit in a groove on the shaft and thus do not extend outside the groove to scratch the transparent sleeve.

Abstract: A head bolt and associated socket includes a head portion associated with the bolt configured for enhanced grasping thereof by a complementary tool member. A first and second multifaceted stepped torque application head surface of the head bolt are utilized for the spreading of torque loads to the head surfaces of the bolt minimizing distortion by or deformation of the head surfaces during torquing. A modified aspect of the invention includes an adhesive sealing fluid contained within the head bolt selectively utilized and directed by the socket.

Abstract: A fastener drive tool for applying a rotational torque to a threaded fastener for driving the fastener into or out of a workpiece. The drive tool has an elongated shaft portion with a free end which is engageable with a recess formed in the fastener. Alternating merging concave and convex partially-cylindrical surfaces are formed on the outside of the shank towards the free end of the drive tool. The axes of curvature of the concave and convex partially-cylindrical surfaces are generally parallel to one another. The drive tool has at least one interlobular fastener retention piece attached between two convex partially-cylindrical surfaces which engage a corresponding convex partially-cylindrical surface formed in the fastener recess. The interlobular fastener retention piece releasably retains the fastener on the drive tool when the drive tool is engaged with the recess formed in the fastener and prevents wobbling of the fastener when it is driven by the drive tool.

Abstract: A fastener support apparatus for facilitating the installation of individual screws into a work surface including means for driving individual screws into the work surface; a support member borne on the driving means; a screw support assembly borne on the support member and defining a screw receiving station which is operable to receive the head of the screw; a locking assembly borne on the screw support assembly and operable for travel from a first, partially occluding position relative to the screw receiving station to a second, substantially nonoccluding position; and an actuating assembly borne on the screw support assembly and which positions the locking assembly in the first or second positions.

Abstract: An apparatus for feeding slender parts has a feed rod adapted to magnetically hold a slender part on its front end, and a projecting piece formed on the front end of the feed rod for supporting the part from below. In the case of a headed slender part such as a projection bolt, the projecting piece includes a stopper portion for receiving the head and a support portion for supporting the stem portion of the part. When the feed rod is extended until it reaches a predetermined position, the effect of the magnetic force on the part is forcibly nullified, with the result that the part, while rotatively rising, falls under its own weight to fit in a bolt hole or the like in a mating member positioned below.

Abstract: Depth locator apparatus for insert bit holders provides a means for adjustably setting the depth of a screw head relative to a fastened work-piece surface. The apparatus is comprised of a sleeve, externally threaded, and with an internal bore to affixedly engage the drive end of a bit holder. The apparatus additionally includes two locking rings with internal threads to engage the external thread of the sleeve. The depth of the fastener relative to the work-piece surface is determined by the location of the outermost lock ring, relative to the insert bit, as it locates against the surface, being constrained against axial movement by the rearmost lock ring. The forward ring includes a work engaging cap that rotates relative to the sleeve and the rings.

Abstract: A wrench for rapid and safe adjustment of a scroll saw blade retaining clamp screw. The wrench provides a parallel guide pin attached to the wrench. The guide pin is inserted into a hole in the blade retaining clamp jaws, aligning and supporting the wrench head relative to the clamp screw.

Abstract: A driver for screws, bolts and the like which have a socket for receiving the bit of a driver, in which a tapered holding section between the bit and the shaft of the driver serves to hold an article by frictional engagement with the opening edge of the socket when the bit is engaged in the socket for turning the article. The bit is shorter than the depth of the socket, and the holding section expands sufficiently away from the bit so as to make frictional contact with the edge of the socket when the bit is engaged in the socket.

Abstract: A tool for use in attachment of a drain basket to a drain hole in a basin or the like, is provided in the form of a cylindrical body having lugs projecting longitudinally from one end thereof. The drain basket has a lower cup-like portion with a plurality of drain apertures and a threaded portion on the exterior of the cup-like portion for attachment to a drain pipe, the cup-like portion receiving therein a strainer basket for retaining particles from water flowing from the basin to a drain pipe. The lugs of the tool are shaped and dimensioned to fit into the drain apertures near the bottom of the cup. Around the base or joint of the lugs with the tool body, there is a radially extending ring or ledge. The tool may be attached to the external bottom of the drain basket by inserting the lugs through the cup-like portion and into the slots, then applying the lower flange around the tool body and threading it onto the lower threaded fitting which extends down from the cup.

Abstract: A screw head depth limiter which is a collar having a bore therethrough and adapted to fit frictionally over a screwdriver tip with the tip protruding through the front end of the collar and a step located in the vicinity of the rear end of the collar on which the screwdriver tip seats. The tip is disengageable from the head of a screw when the front end of the collar counteracts the surface of a workpiece and the desired depth of the screw head in the workpiece is reached.

Abstract: The improved screwdriver bit and finder system of the present invention substantially aligns the axis of a screwdriver bit with the axis of a slotted-head fastener and maintains the alignment while the fastener is being driven. The inside diameter of a cylindrical finder and the diameter of a cylindrical driver portion and blade formed on an end of the bit are substantially matched in four different systems, with four discrete ranges of fastener head diameters. These matched systems of the present invention minimize the problems generated by conventional "one size fits all" bit and finders, namely, bit "wobble" in the finder and misalignment of the bit axis with the fastener axis, resulting in damaged bits and fasteners. In contrast, the axial alignment produced by the bit and finder system of the present invention minimizes the amount of driving force required and saves bits and fasteners from damage.

Abstract: A cylindrical internally contoured sleeve-shaped attachment for a screwdriver designed to prevent the screwdriver from slipping out of a slotted head screw and thereby inflicting injury to the fingers or work piece. A cushioned end prevents any marring of the work piece. This attachment is preferably molded of clear plastic material and has no direct mechanical connection to the screwdriver.

Abstract: Depth locator apparatus for insert bit holders provides a means for adjustably setting the depth of a screw head relative to a fastened work-piece surface. The apparatus is comprised of a sleeve, externally threaded, and with an internal bore to affixedly engage the drive end of a bit holder. The apparatus additionally includes two locking rings with internal threads to engage the external thread of the sleeve. The depth of the fastener relative to the work-piece surface is determined by the location of the outermost lock ring, relative to the insert bit, as it locates against the surface, being constrained against axial movement by the rearmost lock ring.

Abstract: A device for facilitating driving of a threaded screw into a member by a screw driver having a shank and a drive head. Such device comprises an elongated housing having first and second longitudinally aligned portions, the first portion configured to readily removably receive the shank of the screw driver with a friction fit restraining the shank to limited relative movement with respect to the first portion along the longitudinal axis of the shank, and defining an enlarged longitudinal slot through which the drive head and shank of the screw driver are insertable at an angle to the longitudinal axis of the first portion. A second portion is configured to have one end engageable with such member and receive a threaded screw and drive head in driving relation therein.

Abstract: A rotatable driving tool for imparting torque to a driven member, such as a threaded fastener having an axial recess in the head thereof, comprises a circularly cylindrical body with a plurality of substantially circularly helical driving portions projecting laterally therefrom and equiangularly spaced about the cylindrical axis, each of the driving portions having a small helix angle, preferably between one and three degress. The driving portions mate with lobes of the fastener recess but are slightly inclined with respect thereto to provide a wedge fit to retain the fastener in engagement with the tool body.

Abstract: The base of the illuminated screwdriver attaches to the light source, and the screwdriver shank is attached to the base. The tip of the screwdriver is a flat metallic blade inserted into the shank. The shank is made of light transmissive material so that light from the source is delivered at the blade. A shield is slidably mounted on the shank to slide from a position away from the tip to a position surrounding the tip. The shield is made of insulator material to prevent the blade from shorting between adjacent screws.

Abstract: A screwdriver and mating screw are shown with interlocking features for coupling with one another to facilitate driving the screw into a workpiece. The screwdriver includes a handle and a blade with an engagement flange on the outer extremity of the blade. The engagement flange engages a complementary recess provided in the head of the mating screw, the recess including a downwardly facing shoulder. A coupling sleeve mounted on the blade exerts an axially directed force on the screw once the engagement flange and complementary recess are engaged to thereby interlock the screwdriver and mating screw.

Abstract: A screwdriver includes a power driven spindle (50) having an end face (52), an enclosure defining a closed cavity (70, 24, 14), a sleeve (60) having a central bore (70) communicating with said cavity and having a forward opening (70c) to receive the head (94) and part of the thread of a threaded fastener (90), and a vacuum (86, 88) for lowering the pressure in the cavity and continuously drawing air from the forward end of the sleeve past the head while holding the head while the fastener is held in a forward end portion (60a) of the sleeve and without driving the spindle. The spindle drives the fastener forwardly and into a workpiece (96) and an air path (70d, 70c, 70b, 70a) sucks contaminants rearwardly and from the workplace.

Abstract: The socket of a plug and socket type coupling is mounted with an assembly tool which makes sure that a threaded connection between the socket and a mounting member is properly tightened. When the socket is to be mounted, the socket is operated to a disengaged condition and the assembly tool is inserted into the socket. The socket is then operated to an engaged condition. This causes locking elements in the socket to engage the assembly tool to hold the assembly tool in the socket. Torque is then applied to the assembly tool. When the threaded connection has been tightened to a desired extent, a breakaway section of the assembly tool fractures to interrupt the transmission of force to the socket. The socket is then operated to the released condition and the end portion of the broken assembly tool is removed from the socket. A plug is then inserted in the socket to enable fluid under pressure to be conducted through the coupling.

Abstract: A non-slip screwdriver head mechanism is taught. Briefly stated, an inner ferrule is spring biased, in telescoping fashion, inside an outer ferrule. The outer ferrule is held onto the screwdriver shaft through the use of a compressible bushing. The inner ferrule extends beyond the outer ferrule and the screwdriver blade and has a cup-type bore at its free end. By placing the cup end over a screw head, the non-slip screwdriver captures the screw head. The blade is then urged into engagement with the slot on the screw head.

Abstract: An end effector, which is adapted to be disposed on a movable industrial manipulator arm, is capable of placing a holed object having an opening therethrough onto a stud member. The end effector includes a tool adapted to centrally releasably support the holed object and a support mount slidingly connected to the tool for mounting the tool to the industrial manipulator arm. A first sensing system is utilized for sensing when the holed object has been aligned with, and is disposed about, the stud member, and a second sensing system is used for sensing when the holed object is misaligned with the stud member. A third sensing system is provided for determining the amount of misalignment between the holed object and the stud member in one of two planar directions, and a fourth sensing system is included for determining the amount of misalignment between the holed object and the stud member in the other of the two planar directions.