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Class 81/460 - Inserted portion having plural, noncollinear blades (e.g., Phillips)


Subclass of Class 81 - Tools
Definition: Work-engaging and strain-exerting portions having a periphery
No. of patents: 115
Last issue date: 02/19/2008


1      
NumberTitleIssue Date
7331744Lobed drive for hi-lite fastener
A drive socket for a male threaded fastener includes three rounded lobes of equal radius which are located equidistant from the center of the fastener and 120° apart from each other. The drive socket also includes three flat surfaces, each flat surface being locate...
02/19/2008
7331743Lobed drive for hi-lite fastener
A drive socket for a male threaded fastener includes three rounded lobes of equal radius which are located equidistant from the center of the fastener and 120° apart from each other. The drive socket also includes three flat surfaces, each flat surface being locate...
02/19/2008
7325470Self-centering screw and retaining screw driver for use in surgery
The present invention relates to an orthopedic screw and a corresponding screw driver wherein the screw has a torque driving head with a rounded side a spherical wall for multiaxial use, a self starting, self tapping insertion tip and a threaded portion including a ...
02/05/2008
7322265Compound screwdriver head
A compound screwdriver head, which comprises a first working portion and a second working portion of the same size, the first, second working portion of the bigger size is used for screwing and unscrewing a bolt of bigger, smaller size respectively, so that differen...
01/29/2008
7316535Screw with a convenient screw head
A screw has a convenient head, wherein an engaging concavity is defined. Said engaging concavity includes a central portion and a plurality of radial recesses disposed around and in communication with the central portion. Each radial recess has two insides with one ...
01/08/2008
7311026Strip resistant screw head and screwdriver tip in combination
A screw head and screwdriver for use in combination are provided to reduce the occurrence of stripping a screw head during tightening or removing the screw. The head slot employs slot walls that indent in some portion of the wall, the indent portion forming a ledge ...
12/25/2007
7293949Spiral drive fastener with friction engageable surface
Interference surfaces are constructed on inner transition surfaces between wings of a fastener having a spiral recess. A portion of the transition surface is tapered to provide the interference. A standard driver for a spiral recess will engage the interference surf...
11/13/2007
7249949Internal connection dental implant
An internal connection dental implant and implant assembly in which the implant includes a lobed configuration for installing the implant and a beveled surface positioned on the proximal side of the lobed configuration for providing stability between the implant and...
07/31/2007
7226262Lobed drive for hi-lite fastener
A drive socket for a male threaded fastener includes a plurality of rounded lobes of equal radius which are located equidistant from the center of the fastener and an equal distance from each other. The drive socket also includes flat surfaces located opposite the l...
06/05/2007
7225710Combination driver and combination fastener
A driver has a tip that enables it to engage each one of a conventional hexagonal-head fastener and a conventional lobed-head fastener. The tip includes alternating flutes and crests. The crests are substantially flat to engage straight walls of a hexagonal-head. Th...
06/05/2007
7207248Threaded screw fastener characterized by high pull-out resistance, reduced installation torque, and unique head structure and drive socket implement or tool therefor
A threaded screw fastener is provided with a head portion that has integrally incorporated therein dual drive structure whereby the single threaded screw fastener can be rotatably driven by alternative rotary drive socket implements or tools, such as, for example, h...
04/24/2007
7188554Medical fastener and tool
A drive system for a surgical fastener is composed of a drive tool with a drive tip that mates closely with the recess formed in the head of a threaded fastener. The surgical fastener has a head with a quadrilobe fitting therein which closely mates with the quardilo...
03/13/2007
7185563Impact driver and fastener removal device
A fastener impact driver device includes a fastener engagement member having a plurality of projections disposed about a lower portion that engages a corresponding peripheral portion of a fastener. The device further includes a positioning member having an upper por...
03/06/2007
7168348Screwdriver bits
The invention pertains to a screwdriver bit with a drive section (14) and a front section (1) that contains a profiled penetrating section (2) and is manufactured by compression molding and subsequently sintering a hard metal powder, where the f...
01/30/2007
7165482Fastener and driving tool with retaining blade
A combination fastener driver and fastener, the fastener driver including a generally hourglass-shaped tip which flares from the shank to the tip and the fastener includes a generally hourglass-shaped slot in the fastener head with under cut side walls. The flared w...
01/23/2007
7162939Tamperproof screw, combination with screwdriver bit, and header punch for manufacturing tamperproof screw
Related to a tamperproof screw to which a conventional general screwdriver cannot couple so that screw tightening is prevented reliably, to a screwdriver bit that can be simply and quickly coupled to the screw and can reliably prevent a come-out phenomenon during sc...
01/16/2007
7150211Screw and driver therefor
A screw (10) has a threaded shank (12) and a head (14). The head has a recess (18) that comprises three lobes (18a,b,c). Each lobe is separated by a curved drive flange (20a,b,c,). A driver (100) has a d...
12/19/2006
7147421Screw and screwdriver
A screw and a screwdriver of the present invention provide an easy insertion of screwdriver bits and the screwdriver conveys a large torque when fastening so that the screwdriver does not rise up from the screw and does not damage recesses to fasten and loosen the s...
12/12/2006
7128513Screw and driver therefor
A screw (10) has a threaded shank (12) and a head (14). The head has a recess (18) that comprises three lobes (18a, b, c). Each lobe is separated by a curved drive flange (20a, b, c). A driver (100) has ...
10/31/2006
7124665Screw positioning device for a screwdriver
A screw positioning device for a screwdriver comprises a connecting rod assembly, a screw positioning sleeve and a magnetic member. The screw positioning sleeve is axially defined with a slide hole for insertion of an end of the connecting rod assembly, the magnetic...
10/24/2006
7111531Screw and screwdriver
A screw and a screwdriver of the present invention provide an easy insertion of screwdriver bits and the screwdriver conveys a large torque when fastening so that the screwdriver does not rise up from the screw and does not damage recesses to fasten and loosen the s...
09/26/2006
7097404Auto-torque, tamper-proof screws
A screw having a screw-threaded shank and a circular head, the head being provided with three radially extending screwdriver tip receiving portions defined between three first, off central integrally formed projections designed to become shaved-off the screw head by...
08/29/2006
7077038Screw having non-strip drive recess and driver bit for use with the screw
The present invention provides a screw, comprising a screw head having a drive recess and a screw shank having threads and being integrally formed with the screw head, wherein the drive recess includes a plurality of engaging grooves equiangularly radiating from an ...
07/18/2006
70734163-point/5-point fastener, 3-point/5-point bit
The present invention provides a fastener that can be used with a variety of bits as well as a fastener with several security features that can be used only with a very specialized bit and, also, a fastener/bit combination that can be used in conjunction with high-t...
07/11/2006
7059855Dental implant system
A dental implant system includes a dental implant having an external thread for threading into bone and an internal thread for attachment of a prosthesis. The internal thread has a plurality of notches which accept a complimentary shaped insertion tool. The insertio...
06/13/2006
7051624Security nut, bolt and screw
A security screw fastener, e.g. a nut or bolt having a head (3) around which is a curved exterior surface (5) which is at least partially conical or dome-shaped on which several left-handed and right-handed grooves (12, 13) are formed which are ...
05/30/2006
7036405Key with retractable pattern
A key for operating a security fastener having a lock pattern includes a retractable key pattern. The key pattern has an operational extension position in which the key pattern is enabled for substantial engagement with a security fastener having a matching lock pat...
05/02/2006
7028592Tool element and screw for mating engagement therewith
Disclosed herein is a kit comprising a tool element and a screw for mating engagement therewith. The tool element is preferably a portion of a screwdriver, ratchet or power tool and preferably comprises blade means, flared drive means and substantially rectangular s...
04/18/2006
7007573Impact driver and fastener removal device
A fastener impact driver device 10 includes a fastener engagement member 12 having a plurality of projections 14 disposed about a lower portion 16 that engages a corresponding peripheral portion 18 of a fastener 20. The devi...
03/07/2006
6968758Wrench adaptor for driving screw driver bits
An adaptor device is developed for attaching to a wrench and for being driven by the wrench, the adaptor device includes an extension for attaching to the wrench, a shank extended from the extension and having an engaging hole to receive a tool member, the shank inc...
11/29/2005
6951158System comprising a screw and a tool therefor
System comprising a crew and a tool (6) therefore, in which the screw head (1) with a slot (2), the slot (2) having a first recess (3) with an approximately straight-walled cross section, and the tool being provided with an engagem...
10/04/2005
6945142Socket
A socket includes a socket body having a periphery formed with a plurality of insertion recesses each having two opposite sides each formed with a first urging face and has a mediate portion formed with a second urging face located between the first urging faces of ...
09/20/2005
6938516Bicycle crank axle bolt
A bicycle crank arm apparatus includes an axle having a first end portion and a second end portion, wherein the first end portion has an outer peripheral surface and a threaded inner peripheral surface; an axle bolt having a threaded outer peripheral surface screwed...
09/06/2005
6922870Torque magnifying handle for driving tool
A handle which is sized for gripping and for holding a drive tool wherein the drive-tool handle can be alternately positioned in the body of the handle for achieving varying amounts of torque. As assembly involving the handle and the drive tool. ...
08/02/2005
6921236Tool for repairing damaged threads
A tool for rethreading a damaged threaded object having a solid body with at least one through bore including at least one cutting tooth. A slot intersects the through bore, allowing relief for shavings removed from the object as it is rethreaded. The tool can be ad...
07/26/2005
6908126Enhanced security catch assembly for retaining a handle on a spindle
A catch assembly that locks a handle onto the spindle of a lock mechanism has enhanced resistance to attempts to remove the handle by forcibly driving the catch assembly inwards. The catch assembly includes a base mounted on the spindle having a threaded opening tha...
06/21/2005
6886433Combination of screw and screw driver bit and header punch for its manufacture
A combination of a screw and a screw driver bit and a header punch for its manufacture capable of effectively preventing a come-out phenomenon of the screw driver bit by improving the structure of a groove part in a cross groove part in a cross groove of a screw to ...
05/03/2005
6868572Screwdriving and countersinking bit
The invention provides a bit (10) for use with a rotatable tool, said bit including: a shaft (12) having a rearward end adapted to be held by a chuck of the rotatable tool, and a forward end (18) having cutting tips formed thereon; a reaming hea...
03/22/2005
6857340Driver, fastener and forming tool
A device for use in a torque transmitting system including a driver having a specially configured driver end and a fastener having a specially configured recess for receiving the end of the driver, wherein the respective externally configured and internally configur...
02/22/2005
6685412Multi-lobe torque driving recess and tool in particular for an orthopedic implant screw
The present invention provides a fastener, such as a screw or nut and tool designed in particular for use with an orthopedic implant system wherein the fastener has a multi-lobed torque driving recess. The recess has a central area bounded by equally spac...
02/03/2004
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