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...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!

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Class 411/403 - Socket or slot


Subclass of Class 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
Definition: Subject matter wherein the head driving structure consists
No. of patents: 162
Last issue date: 12/15/2009


  2        
NumberTitleIssue Date
6966737Deck screws suitable for use with composite lumber
The present invention is directed to a deck screw intended for use with composite lumber, although it can be used with other wood products, such as pressure treated lumber. The deck screw of the present invention may be provided with a head and a shaft that has two ...
11/22/2005
6948408Flat ended double cube shaped tipped, screwdriver system
A sure grip screwdriver system comprises a shaft. The shaft has a handle end and a working end. The shaft has a working inner portion and a working outer portion. The working inner portion is adjacent to the handle end. The working outer portion is adjacent to the w...
09/27/2005
6935824Tamper resistant screw
An improved tamper resistant screw and driver tool. In one embodiment, the present invention provides a tamper resistant screw and screw driver tool. The screw head features a unique tamper resistant design. The screw cannot be turned successfully with standard scre...
08/30/2005
6931968Drive for automated assembly
A member for being joined to a mating member is provided. The member includes a number of drive sections that are engagable by a driver having corresponding driver sections. The rotation of the driver causes the member to be joined to the mating member. Each drive s...
08/23/2005
6932822Spinal implant, driver tool and nut guide
A driver tool for a spinal implant having an implant body and an anchoring screw portion, and a nut member screwed onto a head portion of the implant body and having an upper wall formed with a tool engagement groov. The driver tool includes an elongated shaft, and ...
08/23/2005
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
6890139Fastener having recess useable with multiple drivers and method of manufacture
A fastener is described having a head formed with a recess which accommodates a square head driver, symmetrical drivers, such as PHILLIPS™ style drivers, asymmetrical style cross head drivers, such as POZIDRIV® style drivers, and combination square and cross driv...
05/10/2005
6848907Screw for dental implants
A screw for dental implants, used to fix dental prostheses to abutments combined with fixtures previously inserted in the alveolar bone, includes a screw portion and a screw-head portion. The screw-head portion includes a pair of inclined planes on either side of a ...
02/01/2005
6802680Torque limiting fastener
A torque limiting fastener includes a fastener body and a fastener head insert configured to fit within the fastener body and to transfer a limited amount of torque to the body. The fastener body has a head with a bore formed therein and having a first set of protru...
10/12/2004
6789989Screw having a head with concave underside
An integrally formed screw, such as a wood screw has a threaded cylindric stem and a head (9). At least a part (25) of the head (9) is shallowly convexly curved (25) and is provided with a screwdriver recess (26). The head (9
09/14/2004
6736580Lobed 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...
05/18/2004
6694700Fastener attaching frame members of a patio enclosure
A fastener for use in forming a joint of a framework for a patio enclosure. The joint includes an end of an elongated first frame member fastened to a side of an elongated second frame member. The fastener includes a body having a first end and a second e...
02/24/2004
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
6682283Sidewalk bolt
A sidewalk bolt is provided. The bolt includes a head portion, a threaded shaft portion extending perpendicularly outward from a first side of the head portion, and a socket head recess well formed within a second side of the head portion for use in drivi...
01/27/2004
6655888Lobed 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 b...
12/02/2003
6641586Closure system for spinal fixation instrumentation
A closure system for fixing a spinal fixation element to a spinal fixation element receiving body includes a low profile outer locking nut for engaging an outer surface of the spinal fixation element receiving body and an inner set screw for engaging an i...
11/04/2003
6632057Fixing unit with an end imprint in a threaded terminal portion
A fixing unit includes a threaded terminal portion, with the end face having a hollow imprint with a multilobate shape. The distance between the peripheral edge of the imprint and the external peripheral surface of the portion varies between maximum (d1) ...
10/14/2003
6626067Retention socket geometry variations
A device includes a body having a plurality of alternating drive regions and corner regions arranged about a central axis for cooperation to define a socket recess having an open outer end and an inner end. Each drive region has a drive surface disposed t...
09/30/2003
6481944Combination sidewalk bolt
A combination sidewalk bolt is provided. The bolt includes a head portion, a threaded shaft portion extending perpendicularly outward from a first side of the head portion, a socket head recess well formed within a second side of the head portion for use ...
11/19/2002
6430756Closet bolt
A closet bolt is provided for mounting a toilet bowl to a specific installation. The closet bowl has a cylindrical shaft in which a hollow passage is formed. The hollow passage advantageously facilitates shortening of the closet bolt through cutting. Also...
08/13/2002
6402449Screw with an improved head
Disclosed is a screw with an improved head, in which a stress-relieving notch is formed at each corner of a driving recess on the screw head. The stress-relieving notch is in an equal arcuate shape. Apart from the well known slotted or Phillips one, the d...
06/11/2002
6393953Combination of screw with driver bit or wrench
A screw with a polygonal hole (30) formed with a polygonal hole (32) disposed in the center of a screw head (30a) and comprising a vertical wall (33) with a preset depth, and with a cone base oriented from the lower edge of the vertical wall toward the ce...
05/28/2002
6341927Tamper reistant fastener
A tamper resistant fastener, which can only be rotated with a specific key, is described. The fastener includes a head for rotation about a vertical axis. The head is provided with the least two cutouts in the head of the faster spaced away from the verti...
01/29/2002
6302630Fastener with recessed head and head insert
A fastening device (10) including a fastener (20) and a recess insert (12) retained within the head (21) of the fastener (20). The fastener has a head (21) at one end and a threaded shaft (25) at the opposing end. The fastener head (21) has an engagement ...
10/16/2001
6286382Rack and pinion steering gear and method of manufacturing the gear
A rack and pinion steering gear (10) comprises a rack (14) and a housing (12) for receiving the rack. The housing (12) has a chamber (42) for receiving a rack supporting yoke (70). The chamber (42) has a threaded portion (44) with internal threads (45). A...
09/11/2001
6276885Bicycle crank arm parts/assembly and assembly tools
A crank axle includes an axle body having first and second ends, a first rotary linkage member disposed at the first end of the axle body for nonrotatably fitting a first crank arm thereto, and a first centering structure disposed at the first end of the ...
08/21/2001
6220805Slotted screw and method, and apparatus for forming a slot in a semi-product of a screw prior to thread formation
The slotted screw is made with an apparatus for forming a slot in a semi-product of a screw prior to thread formation and includes a punch and a die mechanism. The die mechanism includes a tubular member, and an elongated die member formed integrally with...
04/24/2001
6186718Threaded fastener having a head with a triangle centerpost within a triangle recess
The fastener of the present invention has a head integrally formed with a threaded shank. The face of the head has a triangular recess with a triangular centerpost extending upward from the recess. The recess has three sides forming corners, and the cente...
02/13/2001
6158094Mechanical clamp controlling
A mechanical clamp used to secure hoses includes an elongated band. The band surrounds a central region and has a sequence of slots along its length. An adjustment screw has a hexagonal head that rotates about a longitudinal axis and has a thread that ext...
12/12/2000
6116834Drywall screw
The drywall screw includes an elongated shaft about an axis, a screw head at one end and threads about the shaft. The screw head has a recess having upper and lower portions. The upper portion is comprised of an upwardly flared thin-walled section having ...
09/12/2000
6109851Screws having selected heat treatment and hardening
A carbon steel screw has one or more portions which have been selectively hardened by selective heat treatment and quenching. In one embodiment, an upper portion of the screw head is selectively hardened to prevent or reduce damage when torque is applied ...
08/29/2000
6016727Recess drive bone screw and cooperable driving tool
A fastener with a recessed drive socket and a driving tool with a cooperable driving head. The socket having a cylindrical interior wall interrupted by a plurality of driving corners. The driver having a tapered driving head including a plurality of sharp...
01/25/2000
5957645Spiral drive system for threaded fasteners
A spiral drive system for threaded fasteners includes driver-engageable surfaces on the head end of the fastener in which at least some of the driver-engageable surfaces are defined by a spiral segment configured to maximize torque transmission while spre...
09/28/1999
5931706Monolithic terminal board-cable assembly, in particular for the electric supply of electric household appliances
A terminal board-cable assembly has an electric supply cable, and a boxlike terminal board molded from synthetic plastic material and defined by a base having at least one electric contact projecting from a first face of the base, and by a cover which is ...
08/03/1999
5927240Housing shared by vehicle component and disabling switch and decoder
An automotive anti-theft system comprising an enclosure of a device or system necessary to operate the vehicle; this enclosure also enclosing an interlock or disabling entity disabling operation of that device or system, and also enclosing a decoder contr...
07/27/1999
5913650Fastening device with security feature
216-type screws and KS-type screws are two types of fastening devices typically used to restrict access to the chambers of building entrance protector (BEP) enclosures used in telecommunications applications. Access to such chambers is limited to those us...
06/22/1999
5904081Fastener and tool combination for applying equivalent torque along fastener length
A threaded fastener and mating driver system is used to apply a uniform torque to the entire fastener body and thereby facilitate removal of stuck fasteners. The driver tool is a two stage driver with one stage driving the inner bore of the fastener and t...
05/18/1999
5890860Drywall screw
The drywall screw includes an elongated shaft about an axis, a screw head at one end and threads about the shaft. The screw head has a recess having upper and lower portions. The upper portion is comprised of an upwardly flared thin-walled section having ...
04/06/1999
5833419Angularly accessible head for threaded connector
The angularly accessible head for a threaded connector comprises a spherical structure having a centered slot therein, the slot having a bottom surface or wall in the shape of an inverted V, with a center point thereof extending toward and terminating bel...
11/10/1998
5827031Self starting finishing screw and driver tool
A self starting finishing screw with a cylindrical shaft with a taper on one end and a tool engaging recess on the other end. The shaft is threaded along the entire length....
10/27/1998
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