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WO/2000/031423A1 |
The invention concerns a wood-screw characterised in that it comprises two identical threads (5) and (6) longitudinally offset. Each of them consisting of two unsymmetrical flanks, one in front (9) along a first slope and the other at th...
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WO/2000/029754A1 |
The invention relates to a corrosion-resistant, threading (1), especially concrete screw, for screwing into a bore-hole with a bore-hole-wall, comprising an essentially cylindrical core (2) consisting of corrosion-resistant metal, with a...
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WO/2000/028225A1 |
The invention relates to a thread-cutting screw for screwing into a pre-bored hole in concrete, brickwork or similar. The inventive screw is characterised in that the bearing screw thread surface A0n of the stressed screw thread flank th...
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WO/2000/025032A1 |
A screw (1), especially one that can be inserted into wood or wooden materials, consisting of a shank (2) with at least one thread (7,8), whereby a head (4) with an attack surface (5) for a tool is provided on one end and a substantially...
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WO/2000/020767A1 |
A screw fastener (71) for attaching a profiled sheeting panel to a support, said fastener (71) comprising: (i) an elongate cylindrical shank (72); (ii) an enlarged head at one end of the shank (72) adapted for engagement with a driving t...
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WO/2000/013817A1 |
The invention relates to a thread-forming screw (10, 20, 40, 60, 80, 100) made of a thermosetting light alloy and used as a screwing tool, whose shaft (12, 22, 44, 64, 84, 104) exhibits a thread (14, 26, 48, 70, 86, 106) with flanks. The...
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WO1999058864A9 |
Disclosed is a fixing system for securing a first sub-assembly to a second component, especially for use in the motor vehicle industry. The inventive fixing system consists of at least one fixing screw (3);a corresponding first pre-assem...
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WO/2000/010473A1 |
The invention relates to a bone anchoring element (9) for fixing bone parts to another implant, comprising A) a longitudinal cylindrical anchoring part (1) having a longitudinal axis (2), an upper end (3) and a lower end (4); and B) a co...
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WO/2000/011358A1 |
A fastener is constructed having four thread zones (4, 5, 6, 7) constructed over the length of the fastener (1), from the head (2) to the tip (10), namely a ridged cylindrical holding zone (4), a ridged cylindrical transition thread form...
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WO/1999/067540A2 |
The present invention envisions a fastener and a blank (30) for forming a fastener. Threads are formed on the fastener blank (30) of the present invention to achieve the fastener of the present invention. The fastener and blank include a...
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WO/1999/040329A1 |
A screw (11) which can fix plaster board in a braced plaster board lined structure has an enlarged head portion (12) having a diameter (D), which is at least 9.5mm, and preferably at least 10mm, or possibly greater. The screw (11) has a ...
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WO/1999/031395A1 |
The screw to fix the distance of covering plates in a substructure is provided with two shank sections (9, 10) having threaded areas (11, 12) with different diameters. A stop-like section is formed below the screw head (14) and in a tran...
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WO/1999/023326A1 |
A gutter fastener (10) having a first shank portion (14) with a head (12a) integrally formed on one end and a second shank portion (16) integrally formed with the opposite end. The first shank portion has a length (L1) substantially equa...
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WO/1999/006719A1 |
The invention relates to a retaining screw produced by cold rolling, having a self tapping thread and designed to be screwed for example into thermoplastic material. Said screw has a virtually end-to-end cylindrical thread as well as thr...
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WO/1999/006715A2 |
The invention pertains to a screw produced by cold rolling, designed to be screwed into plastic material, and having a self tapping thread, the fillets (3) of which are formed, in a sectional view, like a knife blade. The fillet flank su...
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WO/1999/005421A1 |
A threaded fastener (1) is disclosed for anchoring into a substrate comprising a core portion (2) having at least one helical continuous thread provided along a substantial portion of the length of the core, in which the helical thread h...
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WO/1999/005420A1 |
A hybrid screw (S, S'') comprises a flared head (10, 10''), a cylindrical stem (12, 12'') and a distal pointed section (14, 14'') with the flared head (10, 10'') defining a cruciform opening (16, 16''). The cylindrical stem (12) defines ...
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WO/1999/000221A1 |
A screwdriver (10) for driving collated screws (16) including a slide body (20) coupled to a housing (18) for reciprocal displacement in a cycle including a retraction stroke and an extension stoke, a lever (48) pivotably mounted to the ...
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WO/1998/056998A1 |
The invention relates to a connection between two wooden construction parts (2 and 3). According to the invention, a joint plate (4) is introduced, the base part (5) of said joint plate (4) being connected to the wooden construction part...
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WO/1998/051933A1 |
A fastener (20) is described having a body comprising a substantially parallel portion (12) with a head (13) at one end and a tapered portion (14) leading to a point (15) at the other end, and a helical formation (21) providing an edge (...
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WO/1998/050706A1 |
The invention relates to a screw, comprising a shaft (2) and a head, said head being provided with a means (6) of engaging a tool. The shaft has a thread (4) and is provided with a boring part (5) at its free end. The height (LK) of the ...
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WO/1998/046891A1 |
Disclosed is a drilling and threading fastening, in particular a screw (1) comprised of a threaded rod (3) and a drilling tip (4) to bore a pilot hole for the threaded rod (2). The drilling tip (4) is designed as a multi-diameter drill c...
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WO/1998/044268A1 |
The invention concerns a wood screws with cut-out thread, characterised in that the thread (2) comprises a cut (6) on at least part of the screw length. Preferably, these cut-out parts form four helical cut-out lines (8) around the screw...
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WO/1998/042989A1 |
The invention concerns a screw (1) provided with a shank (3), a head (2) and a boring part (5). The shank (3) has a thread (4). The head (2) comprises a collar (6) disposed at an axial spacing (B) from the support face (12), a section (7...
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WO/1998/031959A2 |
The invention involves primarily a novel self-thread-forming plug and fastener (10, 110, 210, 310, 410, 510, 610, 710) for sealing and forming internal threads (30, 130, 230, 330, 430, 530, 634, 730) in an opening (20) in a workpiece (P)...
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WO/1998/027345A1 |
The invention concerns a screw (1) for the mutual securing of two components (2 and 3), a shank (4) with a thread (6), a non-threaded shank section (7) and a screw head (5) being provided. The end region (8) of the thread (6) facing the ...
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WO/1998/019071A1 |
A screw for fastening metal sections (10) onto a base (11), comprising a shank (2) with a threaded section (5) and an engaging section (3) enabling a screw-in device to be arranged. The section of the shank which is connected to the enga...
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WO/1998/011354A1 |
A fastener system capable of clamping a workpiece that provides for enhanced distribution of the internal forces that are generated in the components as a result of the assembly of the system. The fastener system includes an externally t...
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WO/1998/004842A1 |
A thread-forming screw, in particular a concrete screw, has a cylindrical core with a longitudinal centre line and a thread designed in a single piece with the core and provided in the area of its outer circumference with cutting notches...
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WO/1998/003799A1 |
A combination screw and clearance drill (10) is provided that in one mode of operation is able to drill a pilot hole for the screw threads (15) through a top piece of material and then screw into a lower piece of material, thus enabling ...
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WO/1997/044590A1 |
An improved relief screw (18) is provided for installing a wallboard panel (12) to a stud (14), which consists of a flat head (20) made of an inverted rectilinear slant height frustrum portion (22) and a straight thin cylindrical portion...
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WO/1997/039248A1 |
A screw for securing sections on a substructure has a shaft (2) with a boring section (4) and a threaded section (5), as well as a screw head (3). The section (6) of the shaft (2) adjacent to the screw head (3) is conically tapered towar...
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WO/1997/026460A1 |
The distance screw proposed has a first threaded section (1) desinged to be screwed into a substrate, a head section (3) designed to be screwed into a construction element, a shaft section (2) located between the head section and the fir...
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WO/1997/022811A1 |
A fastener having a shank portion (11), at least part of the shank portion being provided with a screw thread (14), an head portion (12) at one end of the shank portion and a tip portion (13) at the other end of the shank portion wherein...
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WO/1997/016652A1 |
The invention concerns a rustproof screw with a hard tip (5), a head (2) of austenitic steel and a shank (3) which in at least one section including the screw tip (5) consists of maraging steel, maraging steel having greater hardness tha...
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WO/1997/012152A1 |
A fastener (10) comprising a shaft (28) and a head (36). The shaft is provided with an enlarged shaft portion (30).
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WO/1996/038676A1 |
The invention relates to a countersunk head screw with an even number of ribs with countersinking blades on the underside of the screw head and projecting therefrom. Every other rib has a step at its end towards the screw shaft formed by...
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WO/1996/022472A1 |
A screw, particularly a wood screw which has a threaded cylindric stem (10, 110) merging, over an inversely frustoconical part (16, 116) with an enlarged diameter cylindric portion (20, 120) which is integral with an underside of a large...
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WO/1996/019675A1 |
A hole-shaping and thread-forming screw (1) has a non-cutting hole-shaping end section (2) that ends in a point, a shaft section (4) provided with a thread and an engagement section (5) with a tool. The tapering end section (2) of the sc...
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WO/1996/019676A1 |
A hole-shaping and thread-forming screw (1) has a non-cutting hole-shaping end section (2) that ends in a point, a shaft section (4) provided with a thread (3) and an engagement section (5). The non-cutting hole-shaping end section (2) t...
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WO/1996/016274A1 |
A self-cutting screw has a shaft (1) with a thread (9) provided at its screwing side with a hardenable thread-shaping part that extends over several thread turns. The thread-shaping part is designed as a flat, elongated insertion (7) ins...
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WO/1996/016273A1 |
A self-centering wall anchor (10, 100) having an outwardly threaded hollow cylindrical body (101, 111) with a flanged proximal end and a cutting distal end. The hollow cylindrical body diminishes in diameter toward the distal cuting end ...
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WO/1996/015378A1 |
A self-boring, thread-milling screw has a boring section (1) with a substantially constant diameter followed by a transition area (15), a flow forming section (2) and a threaded shaft (3). The grooves (7) for chips that start at the bori...
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WO/1995/025901A1 |
The invention relates to a drill with a drill shank (1), especially a screw shank with a self-tapping thread (18) and a forked drill bit (10) of hard material at the opposite end of the shank to the driving end which is inserted into a h...
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WO/1995/024566A1 |
A lamina-shaped borepiece (4) for a self-boring fastening element (1) is provided at its front side with cutting edges (5, 6 ) flanked by grooves (7, 8) that extend approximately parallel thereto. Indents (9, 10) with set-back cutting ed...
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WO/1995/022701A1 |
A sheet-metal section screw (10) consists of a head (11) and a shank (13) shaped on it. The sheet-metal section screw (10) comprises a washer (12) and an annular seal (14). Firstly at least the head (11) and the washer (12; 21) are coate...
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WO/1995/014863A1 |
A radial extrusion thread-forming screw (20) comprises a lead thread (36), load-bearing threads (34), and a forming thread (38). The forming thread (38) has a plurality of forming elements (50) that extend outwardly from the forming thre...
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WO/1994/025764A1 |
The present invention relates to a screw, consisting of austenitic stainless steel with a hardness which does not exceed 250 HV, which stainless austenitic steel exhibits a surface hardened layer (3), produced by ion nitriding, which has...
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WO/1994/025763A1 |
A thread-forming screw that can be screwed directly into concrete, stone or the like has a screw head (11), a screw shank (12) and a thread (14) which extends at least partly over the length of the screw shank. The invention provides tha...
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WO/1994/016636A1 |
A bone screw (10) having a continuously varying pitch includes a tapered root portion (12) having a relatively small diameter on a leading end (16) of the screw and a larger trailing end (18) diameter. The pitch of the screw decreases be...
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