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Patent Searching and Data


Matches 201 - 250 out of 3,362

Document Document Title
WO/2011/154279A1
A self-tapping screw is described with a drilling part and a shaft (14) which is provided with a thread (12) and a core diameter (Dk). The drilling part has a drilling tip (20) which is arranged eccentrically in relation to a longitudina...  
WO/2011/153619A2
A screw fastener (1) having a head (H), threaded shank (S) with compound, divided threads (T) and tip end (P) has an upper thread surface extending at a substantially flat angle from a normal to a longitudinal axis (3) of the screw which...  
WO/2011/143733A1
A screw fastener (1) having a head (A), threaded shank (B) and tip end (C) has an upper thread surface(s) extending at an angle x of 0° - 3° from a normal to a longitudinal axis (3) of the screw and an apex angle β at the periphery of...  
WO/2011/133967A1
A reusable low cost drill bit element for operative, removable attachment to a turning implement for drilling anchor installation holes, particularly of at least ½" diameter, in drywall. The drill bit is comprised of a section to be eng...  
WO/2011/111023A1
The present invention relates to a thread-forming element, particularly for holes made in cold-deformable materials, comprising a cylindrical body (2) with a circular cross-section which has on at least part of its outer surface a helica...  
WO/2011/111288A1
Disclosed is a wood screw comprised of a wood screw main body and a truncated cone-shaped washer wherein the top of the head of the wood screw main body and the top of the washer can rotate substantially in the same plane, said washer be...  
WO/2011/103653A1
A self-countersinking, self-tapping screw has a head with a substantially flat underside that acts like a washer for bearing against a surface of a material into which the screw is inserted. On an underside of the head are one or more ma...  
WO/2011/103522A2
A building structure including a first building member and a second building member may be connected by a plurality of fasteners, each fastener having a head, a threaded portion having a through hardness of between HRB 70 and HRC 40, a t...  
WO/2011/088502A1
A joint (8, 6, 7A, 7C, 8A, 8B1 11 A, 9A, 9B, 9C) for connection of mutually adjacent structural members (11 A, 11 B), (11, 12), (12, 14), (11, 13), (11,11), (11, 12), characterized in that each structural member has a pair of opposed wal...  
WO/2011/083060A1
The invention relates to a screw having a polygonal cross section (4) and comprising a thread segment and a form section (7) adjacent to the thread section and extending to a front rounded screw end (8), optionally free of threads. The s...  
WO/2011/066985A1
A thread-forming screw for clamping two components is characterized in that the screw has two threaded sections (4, 5) with threads of different pitches, wherein the thread pitches of both threads adjoin each other in the joint.  
WO/2011/063138A1
A threaded fastener (100) includes a shank (104) having a first, threaded portion (102) and a hardened thread portion. The shank (104) includes a thread (112) extending outwardly from a shank body over a first length of the shank (104). ...  
WO/2011/056538A1
A self-drilling bolt and nut assembly includes a nut which has a window to permit visual inspection of the fastener thread upon engagement with the nut. The nut also includes a protective cap or receives a protective cap so that upon thr...  
WO/2011/053920A1
A fastener mountable to a rigid substrate such as a fiber cement panel and also mountable to the panel and an underlying support, such as a metal or wooden stud. The fastener may include a drilling portion (10) having a reaming portion f...  
WO/2011/047933A1
A drilling screw comprises, at the front end thereof facing away from the screw head, a drilling tip (7) with two drilling cutting edges (8). At an axial distance from the drilling cutting edges (8), the screw shank has a constriction (1...  
WO/2011/038447A1
A self-countersinking fastener for engagement with wood or similar composite material, said fastener including a penetrating shaft, and a tool engaging head; wherein said tool engaging head is substantially frusto-conical in overall shap...  
WO/2011/032259A1
A screw has a generally flat washer-like head. On an underside of the head are a plurality of cutters or cutting wedges arranged circumferentially around the shank of the screw. The cutters cut or carve off material when the screw is ins...  
WO/2011/023666A1
The invention relates to a self-tapping screw comprising a cylindrical shank (1) with a conical screw tip (2) which ends in a punctiform sharp tip. The screw thread (4) starts already in the screw tip (2), at a small distance from the pu...  
WO/2011/021959A1
A fastening joint for assembling wooden structures and constructions relates to the field of building and can be used for assembling wooden structures and constructions made from a dry, glued beam, cylindered timber, a one-piece profiled...  
WO/2011/006491A1
The invention relates to a self-drilling fastening element (10), comprising a rotationally symmetrical drilling tip (16) and a shaft (14), wherein the cross-section of the drilling tip (16) is bounded by a first radius (R2), the origin (...  
WO/2011/008152A1
The present invention relates to a method to obtain a time saving and ergonomic sustainable piercing, forming of threads and fixing of at least two metal sheets (2, 3) by using a hand held power tool for driving a drilling screw (1) with...  
WO/2010/148626A1
A self-drilling screw (10) with two or more angles is disclosed. The self-drilling screw (10) comprises a head part (11), a rod (12), a screw thread (121) formed on the rod (12) and extended axially, and a self-drilling end part (13) who...  
WO/2010/139608A1
The invention relates to a self-tapping screw comprising a drive part, a thread part (30), a drilling part (40), and two blades (42) freely projecting transversely to the screw axis (12) on the drilling part (40). The boundary of each bl...  
WO/2010/135016A1
A low energy wood screw that may be inserted quickly and using less energy than conventional screws. In various embodiments, the screw may include a countersunk head (30) having a recess (34) for accommodating a driving tool, a tapered n...  
WO/2010/119052A1
The invention relates to a method for manufacturing a flanged drill screw (10), which method comprises the steps of : - providing a shaft (1) with a head (2) at one end and a free tip at the opposite end of the shaft; - bulging part of t...  
WO/2010/111802A1
A bone screw (600) comprising a proximal head (618) with a central axis (619) and an external thread (626) having a pitch p for lockingly engaging a bone plate hole (652) and a first shaft (602) extending distally from said head (618) an...  
WO/2010/098925A1
A self-drilling fastener from which objects may be hung, for use in a friable material with or without an underlying member at the point of use or in a semi-rigid material such as a hollow core door comprises an elongated body (12) havin...  
WO/2010/093329A1
A thread forming screw thread fastener for fastening into a hole formed by the fastener in a work piece, the fastener comprising: a head having a drive to be engaged with a driver bit; and a shank with threads having a symmetrical thread...  
WO/2010/093330A1
A torque retention screw thread fastener and corresponding thread roll die to manufacture the screw thread fastener is disclosed. The torque retention thread forming screw comprises retention elements in the thread valley of the screw th...  
WO/2010/088647A1
A fastener may include a shaft and a head. The shaft may have first and second opposing ends and a first surface having a first diameter. The head may be attached to the first opposing end of the shaft. The head may have a second surface...  
WO/2010/084469A1
A self-drilling screw for fastening sheet metal roofing or other cladding to wood or metal, has a buttress thread in which the trailing flank of the thread is inclined at a greater angle to the axis of the screw shank than is the leading...  
WO/2010/083634A1
A self-drilling screw consists essentially of a screw head, a rod body, a plurality of screw threads which are formed on the rod body and extended along the axis direction, and a bore tail part, wherein a drilling point is extended forwa...  
WO/2010/040607A1
The invention relates to a self-drilling screw (1) for fastening insulating panels having cover layers arranged optionally on both sides and a corresponding method. The self-drilling screw (1) comprises a screw head (2) and a screw shank...  
WO/2010/034390A1
The invention relates to a screw (1) comprising a shaft (2), a tip (3), a head (4) having rotary dog means (5), a primary thread (6) and a secondary thread (7), wherein the primary thread (6) has a lesser thread pitch than the secondary ...  
WO/2010/007649A1
To provide a screw fastening structure for enhancing the strength of a bolt and fatigue strength by reducing the machining process without altering the shape of an associated member, and for achieving downsizing by keeping the fitting le...  
WO/2010/003901A1
A screw with a polygonal cross section comprises a threaded section (5) and a non-threaded section (7) that extends from the threaded section (5) to a front, rounded screw tip (8). The side line of the non-threaded section (7) runs smoot...  
WO/2008/138510A8
The invention relates to a particle board screw having a conical screw tip with a thread. The thread extends from the screw shaft to the front end of the screw tip. In order to make it easier to screw in, and in order to reduce the split...  
WO/2009/145169A1
A lash adjuster in which an oil film by a squeeze effect is less likely to occur between the pressure flank of a male screw thread and the pressure flank of a female screw thread. The lash adjuster (1) is provided with a nut (14) having...  
WO/2009/111314A3
A screw-type fastener includes an internal cinching mechanism that physically locks exposed threads of a screw outside a housing after a certain number of turns. The fastener may for example, be affixed to a faceplate of a printed circui...  
WO/2009/121448A1
A thread-forming screw comprises a shank portion of a solid material and a thread portion which is joined to the shank portion and is wound from a profiled metal strip.  
WO/2009/122189A1
A fastening assembly for attachment of objects (1 ) to substrates (2) formed from friable materials, such as plasterboard, includes one or more longitudinal pins (8) having threaded head portions (10), which thread into one or more corre...  
WO/2009/109383A1
The invention proposes a blind fastening element, which is constructed similarly to a screw. The fastening element thus has a head (1), which is disposed on one end of the shaft (3) and has a contact surface, which faces toward the shaft...  
WO/2009/106483A1
What is described is a self-boring screw (2) comprising a bore section (6) attached to the free end of the screw shaft (4), two vanes (12) radially protruding from said bore section, the border of said vanes facing toward the bore tip (8...  
WO/2009/103935A1
The coated meta screw (1) of the. invention comprises a tapered tip (It) with an assorted integral screw head (4) and has a substantial length of screw heads (2), thickly coated with resilient elastic material (3). The advantages thereof...  
WO/2009/101751A1
Provided is a tapping screw which ensures smooth plastic flow of a partner material when the tapping screw is screwed into the partner material for tapping, and does not cause cutting or destruction of the internal structure of the partn...  
WO/2009/091857A1
A fastener wherein the tip portion (318) includes a structure that enables and facilitates the insertion of the fastener into both wood and concrete substrates. The tip portion (318) includes a half-cone structure (325) in which a pointe...  
WO/2009/090069A1
The invention relates to a connecting device (27) having a screw (1) and a carrier (7, 70), wherein the latter has a hollow space (8, 9, 28, 29) receiving the screw (1), said space being frictionally and/or positively connected to the th...  
WO/2009/090103A1
The invention relates to a self-cutting screw-in insert having a preferably buckled and/or curved external surface and a region which has a thread (31, 32, 33, 34) and is located on said external surface, wherein the tooth profile of sai...  
WO/2009/024295A4
The invention relates to a screw anchor for fastening devices in concrete or masonry, particularly for use in corroding surroundings, for example outside, with a shaft (1) provided at least partially with a thread. The screw anchor is ch...  
WO/2009/074813A1
The present invention relates to a fixing device for fixing to timber, plastics materials and friable substrates, the fixing device comprising a shank (1) having a first end and a second end, the shank comprising helically extending firs...  

Matches 201 - 250 out of 3,362