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Patent Searching and Data


Matches 251 - 300 out of 3,362

Document Document Title
WO/2009/073663A1
A truss screw is disclosed for use in fastening framing members together. In embodiments, the truss screw includes a raised recess section having walls extending from a top surface of the screw head. The raised recess sinks into the back...  
WO/2009/070571A1
A threaded screw fastener has a point (5), a shank (4) and a head (2). The point is a ballistic point. The shank comprises a linear travel area (6), preferably unthreaded, adjacent to the point and a threaded area (13) between the linear...  
WO/2009/036452A3
An embodiment of the invention includes a self-drilling anchor. The self-drilling anchor includes a drill rod with a first end and a second end and a drill bit attached to the first end of the drill rod. The self-drilling anchor also inc...  
WO/2009/064158A1
A nut for use with self-tapping screws (3) utilized in sheet metal work which comprises an elongated hexagonal-shaped body (1) with a straight through centre core (4) and has a flanged rear end (7) that is beveled (9) at the edge of the ...  
WO/2009/024295A3
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/2009/023168A3
A thread forming fastener (20) comprising a drive head (22) and a shank (24), the shank including a profile which in axial cross-section includes a leading face (42), a trailing face (44) and a tip (46). The leading face (42) is composed...  
WO/2008/130855A3
A fastener (10) with multiple thread characteristics includes a shank (12) and head (14). The shank (12) has a penetrating tip (22) distal most from the head (14). The shank (12) includes a first, conventional thread formation (24) forme...  
WO/2009/047486A1
An extraction device is provided for use when extracting a ceramic foam filter, as used for example in the production and processing of aluminium. The extraction device includes an anchor device (3) suitable for driving into the filter, ...  
WO/2009/034276A2
The assembly of the invention includes a rod (8) made of a plastic material and a metal nut (10) to be screwed onto the rod (8) by forming an outer threading on the rod (8) upon the first screwing operation, the nut (10) having an inner ...  
WO/2009/036452A2
An embodiment of the invention includes a self-drilling anchor. The self-drilling anchor includes a drill rod with a first end and a second end and a drill bit attached to the first end of the drill rod. The self-drilling anchor also inc...  
WO/2009/034078A1
The present invention relates to a screw of the type composed of a head (2), a threaded body (3) and a tip (4), in which the tip (4) comprises at least one section (4b) which has a stepped profile with spiral helicoidal development.  
WO/2008/030507A3
A self drilling fastener (210) for use in a friable material with or without an underlying support member at the point of use comprises an elongated body (212) having an axis (6), a threaded exterior having a root, an enlarged head (214)...  
WO/2007/121081A3
A thread forming screw (10) having a minimum surface hardness of HRC 56. The screw (10) can form threads in a workpiece having a surface hardness which exceeds HRC 23. A method of surface hardening a screw (10) includes carbon enriching ...  
WO/2008/141693A1
The invention relates to a thread-cutting concrete screw (1) and to an arrangement of such a concrete screw (1) which has been screwed into a borehole (9). The invention proposes that the concrete screw (1) be formed with two threads (6,...  
WO/2008/139555A1
A connecting bolt is composed of a cylindrical rod with a continuous helical rib around a circular surface thereof, and a guide member made integral with the rod in a way extending beyond a tip of the rod and having an outer diametral di...  
WO/2008/138510A1
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/2008/016792A3
A threaded device such as a self-tapping screw or bolt, particularly for use in medical applications, provides a low-torque design that prevents a steady increase in the amount of torque necessary to drive the device into material as the...  
WO/2006/110898A3
A ready-to-use pocket joinery assembly is manufactured by a first forming a fastener pocket (63) in a surface of a joinery member (33) near to and spaced from an end of the joinery member (54). Subsequently, one propels a fastener (74) h...  
WO/2008/116581A1
The invention relates to a self-drilling screw which is produced from hardened, alloyed carbon steel comprising an alloying additive and which has a hard tip. The hardness of the tip increases owing to the alloying additive when the scre...  
WO/2008/116582A1
The invention relates to a self-drilling screw which is produced from hardened, alloyed carbon steel comprising an alloying additive and which has a hard tip. The hardness of the tip increases owing to the alloying additive when the scre...  
WO/2008/116491A1
The invention relates to a thread forming screw (10) for screwing directly into a borehole (12). Said screw (10) is introduced into a solid anchoring base and has a screw head (14) with tool driving means, an essentially cylindrical shaf...  
WO/2008/073147A2
A fastener element (16) has a head section (18), a threaded shank section (17) with threads (20) at a pitch and a distal end section (22). A retention device (24) is secured to the distal end section and is engageable with a fastener rec...  
WO/2007/146200A3
An anchor assembly structured for use in connection with ceiling or roofing structures for hanging industrial or commercial components, such as, for example, electrical conduits, heating units, water pipes for automatic water sprinkler s...  
WO/2007/118002A3
An asymmetric thread impact drivable screw (300) and clip (100) for use with a power impact device for penetrating wood fibers while minimizing cut fibers. The screw includes an impact head (310) and a conical shaped tip (330) having a b...  
WO/2008/044751A1
A coating film forming agent that can form on the outer circumference of tapping screw a coating film capable of trapping any internal thread formation waste occurring at the time of driving the tapping screw into a pilot hole of work an...  
WO/2008/030507A2
A self drilling fastener (210) for use in a friable material with or without an underlying support member at the point of use comprises an elongated body (212) having an axis (6), a threaded exterior having a root, an enlarged head (214)...  
WO/2008/012051A1
The invention relates to a hole-forming and thread-forming screw comprising a head provided with a tool receiving element, in addition to a threaded shaft, and a hole-forming part tapering off in the form of a cone and ending in a trunca...  
WO/2008/012052A1
The invention relates to a self-tapping drill screw (1) which can be screwed into a metal sheet (20) comprising a slotted head (2) and a threaded shank (3), a slightly tapered tapping part and a friction part (5, 8, 12) being slightly co...  
WO/2008/012050A1
The invention relates to a hole-forming and thread-forming screw (1) for screwing into a metal plate, said screw comprising a head (2) provided with a tool-receiving element, in addition to a threaded shaft (3) and a hole-forming part (4...  
WO2006133542A8
The concrete screw of the invention reduces the driving torque required, reduces shear failure, and provides increased pull-out resistance The screw has Hi-Low threads, the major thread being of greater diameter than the minor thread, th...  
WO/2007/146200A2
An anchor assembly structured for use in connection with ceiling or roofing structures for hanging industrial or commercial components, such as, for example, electrical conduits, heating units, water pipes for automatic water sprinkler s...  
WO/2007/137771A1
Disclosed is a screw for hard wood, comprising a screw tip (3) with two cutting edges (5) that extend approximately parallel to each other and perpendicular to the longitudinal axis of the screw. The cutting angle of the cutting edges am...  
WO/2006/084119A3
Cross-threading occurs generally due to angular and axial misalignment between the threaded members during assembly. It is particularly troublesome for unskilled laborers and automated assembly operations, resulting in reduced productivi...  
WO/2007/134681A1
The invention relates to a screw anchor for fixing wood components to concrete or masonry. Said anchor has a shaft (1) comprising a first threaded section (2) with a wood screw thread (6) for screwing into wood, and a second threaded sec...  
WO/2007/134361A1
A screw for fastening semi-rigid sheet material to a substrate has a cutter arrangement integrally formed with the screw shank for cutting in the sheet a clearance hole relative to the screw shank so as to accommodate thermal movement be...  
WO/2007/121081A2
A thread forming screw (10) having a minimum surface hardness of HRC 56. The screw (10) can form threads in a workpiece having a surface hardness which exceeds HRC 23. A method of surface hardening a screw (10) includes carbon enriching ...  
WO/2007/087904A1
The invention relates to a self-tapping and thread-forming screw (1), having a screw shank (2) with a screw tip (4) at one end and a force application point (6) at the other end for the transmission of torque. The screw shank (2) is comp...  
WO/2007/025736A3
The invention relates to a tapping screw (1) having projections (5) on its screw thread (4), the rear flank (8) being provided, starting from the start of the screw thread, with protruding projections and the load flanks (9) forming a co...  
WO/2006/050707A3
The invention relates to a screw-in member comprising a changing thread profile, particularly a screwable artificial acetabulum (1, 9, 17), and a method for producing such screw-in members. In order to create a specific progress of the t...  
WO/2007/073326A1
A screw comprising a head part (50), a pointed insert part (52) and a shank part disposed between said head part and said pointed insert part and having a shank axis (A). The shank part comprising a first shank segment (53) adjacent to s...  
WO/2007/061537A2
A reverse angled threadform with anti-splay clearance includes inner and outer helical threads, each with respective leading stab flanks and trailing load flanks, the load flanks mutually engaging when an inner member with the inner thre...  
WO/2007/045222A1
The invention relates to a method for assembly of lock-washer bolts (10) with a lock-washer (18) and locking grooves (16) arranged at the level of the lock-washer, wherein the lock-washer bolt (10) is screwed with low torque into the int...  
WO/2007/036081A1
A self-tapping screw for jointing fiberboard comprises a screw head and a screw shank. It may include additionally screw tip. A threading portion is provided on a part of the screw shank or the entire screw shank. Any cross-section of th...  
WO/2007/025736A2
The invention relates to a tapping screw (1) having projections (5) on its screw thread (4), the rear flank (8) being provided, starting from the start of the screw thread, with protruding projections and the load flanks (9) forming a co...  
WO/2007/012417A1
A thread-cutting concrete anchor (1) for self-tapping anchoring in hard substrates such as concrete, stone, masonry or the like comprises a substantially cylindrical shaft (2) whose core diameter is graduated. The shaft (2) has a cutting...  
WO/2007/012795A1
An extraction device is provided for use when extracting a ceramic foam filter, as used for example in the production and processing of aluminium. The extraction device includes an anchor device (1) having an anchor body (2) suitable for...  
WO/2006/135558A3
In one aspect, a holder (10) mountable to a friable substrate may include a self-drilling drywall fastener (24), a wall engaging base plate (26) having an opening (30) for receiving a fastener, and at least one leg (28) extending from th...  
WO/2004/113736A3
The present invention is directed to a tamper-resistant threaded fastener which may be readily installed into a workpiece but once installed cannot readily removed. The threaded fastener includes a shank portion having a threaded region ...  
WO/2006/137460A1
This invention provides a self-tapping screw that the molded product body has an ultrafine grain ferrite texture having an average particle diameter of not more than 2 μm in at least one cross-section in an arbitrary direction and at le...  
WO/2006/133542A1
The concrete screw of the invention reduces the driving torque required, reduces shear failure, and provides increased pull-out resistance The screw has Hi-Low threads, the major thread being of greater diameter than the minor thread, th...  

Matches 251 - 300 out of 3,362