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7632053 |
Method for the production of a screw, and screw produced according to said method
A screw ( 1 ) having a head ( 2 ), a shaft ( 4 ) that includes a thread ( 5 ), and an interior engaging member ( 3 ) in the head is provided. The screw ( 1 ) is produced from an ultra-high strength...
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7581910 |
Fastener head
A fastener has a recessed drive configuration with outlet channels extending from the recessed drive configuration to the outer surface of the fastener.
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7484440 |
Asymmetric wrench and fastener system
An asymmetrical wrench and fastener system comprising radially extending splines having opposing surfaces whose inner ends are inclined by different amounts with respect to a radius intersecting...
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7441483 |
Tamper-resistant fastener and method and tool for use with same
A fastener includes a round, blind hole or pocket in its head. Installation and removal of the fastener is accomplished with a tool containing an eccentric segment on the end of a shaft. When...
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7441998 |
Fastening element for hard constructional components
A fastening element for hard constructional components includes a cylindrical base body ( 22 ), a self-tapping thread ( 27 ) provided at least on a portion of an outer surface ( 26 ) of the base...
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7331744 |
Lobed 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...
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7316535 |
Screw 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...
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7293949 |
Spiral 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...
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7225710 |
Combination 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...
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7198306 |
Spring-biased locking bolt
A spring-biased locking bolt with an operating button and a bolt connected with the operating button is described, wherein the bolt is spring-biased and movable in a sleeve. The sleeve is screwed...
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7162939 |
Tamperproof 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...
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7150211 |
Screw 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 ( 18 a,b,c ). Each lobe is separated by a curved drive flange ( 20 a,b,c ,). A...
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7128513 |
Screw 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 ( 18 a, b, c ). Each lobe is separated by a curved drive flange ( 20 a, b, c )....
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7097404 |
Auto-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...
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7066062 |
Torque-setting, tamper-resistant fastener and method and tool for use with same
A fastener includes a round, blind hole or pocket in its head. Installation and removal of the fastener is accomplished with a tool containing an eccentric segment on the end of a shaft. When...
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7056075 |
Screw-type anchor
A self-tapping masonry anchor includes an axial bore that is formed at one end and extends through a portion of the anchor.
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6997085 |
Threaded-fastener wrenching structure, threaded fastener and wrenching tool
A threaded fastener capable of being reduced in size and weight. A pair of side wall surfaces of each of six radially outwardly projecting, torque transmitting portions lie on straight lines...
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6988432 |
Multi-tiered-recess screws
A screw and driver system includes a range of screws and a driver. Each screw has a head having a driving recess in its surface for engagement by the driver. The recess of larger screws in the...
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6935824 |
Tamper 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...
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6908126 |
Enhanced 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...
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6890139 |
Fastener 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,...
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6848907 |
Screw 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...
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6802680 |
Torque 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...
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6789989 |
Screw 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...
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6694700 |
Fastener 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...
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6685412 |
Multi-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...
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6682283 |
Sidewalk 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...
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6641586 |
Closure 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...
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6632057 |
Fixing 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...
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6626067 |
Retention 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...
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6481944 |
Combination 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...
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6430756 |
Closet 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...
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6402449 |
Screw 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...
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6393953 |
Combination 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 ( 30 a ) and comprising a vertical wall ( 33 ) with a preset depth, and with a cone...
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6341927 |
Tamper 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...
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6302630 |
Fastener 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...
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6286382 |
Rack 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)...
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6220805 |
Slotted 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...
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6186718 |
Threaded 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....
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6158094 |
Mechanical 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...
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6116834 |
Drywall 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...
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6109851 |
Screws 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...
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6016727 |
Recess 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...
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5957645 |
Spiral 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...
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5931706 |
Monolithic 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...
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5927240 |
Housing 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...
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5913650 |
Fastening 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...
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5904081 |
Fastener 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...
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5833419 |
Angularly 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...
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5827031 |
Self 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.
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