Entries |
Document | Title | Date |
20090142159 | Self-Drilling Screw - Disclosed is a screw for hard wood, comprising a screw tip ( | 06-04-2009 |
20090279983 | FASTENER & FASTENING SYSTEM - The present invention utilises impact-driven fastener ( | 11-12-2009 |
20090290955 | DECORATING STRIP - A self-tapping screw comprises a self-tapping screw having a screw rod; one end of the screw rod being a head and another end thereof being a drilling head; the drilling head having two extending surfaces which are symmetrical; each extending surface being formed with a cutting teeth set; each cutting teeth set having a plurality of cutting teeth; each extending surface extending from a tip of the drilling head and having an approximate sector area; a notch being formed between each two adjacent radial edges of the two extending surfaces. Each cutting tooth is protruded from the extending surface. | 11-26-2009 |
20100226732 | SELF-TAPPING SCREW - A self-tapping screw is disclosed. The screw having a shaft bearing at least partially a thread, which shaft defines a longitudinal axis and on whose first end a drill point with a maximum width and on whose opposing second end a head are arranged, as well as having at least one first cutting edge and having at least one second cutting edge. A recess through which the longitudinal axis passes is arranged between the two cutting edges, with the minimum axial depth of the recess corresponding to at least 0.08 times the maximum width of the drill point. | 09-09-2010 |
20100266365 | SELF-BORING SCREW - A self-boring screw ( | 10-21-2010 |
20110211934 | SCREW HAVING UNDERSIDE POCKETS - 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 material-receiving pockets. These pockets receive material when the head of the screw bears against the surface. These pockets thus help lock the screw in place, i.e. help to prevent the screw from loosening over time. These pockets may have a circular or non-circular shape. | 09-01-2011 |
20110255936 | Threaded Fastener - A fastener includes an elongated body having a first end and a second end, a helical thread having a crest, a root, and flank portions formed on at least a portion of the elongated body, and at least one protrusion extending from the crest and flank portion. The at least one protrusion is an axially extending V-shape of the crest, flank portions, and root of the helical thread with a peak of the at least one protrusion having a ridge that extends radially outward from the root of the thread. | 10-20-2011 |
20110293387 | SCREW WITH DOUBLE NOTCHES - A screw with double notches includes a head portion, a shank portion extended outward from the head portion, a threaded section spirally surrounded on the shank portion. Wherein, a raw section on the shank portion is provided with a cambered surface formed integral with the shank portion in cross-section, and a notched section relative to the raw section has two cutting notches separately depressed into the shank portion and disposed near an end of the shank portion, thereby forming a protrudent part between the two cutting notches. By means of the cooperation of the cutting notches and the raw section, the cutting capability and the removal of debris are increased so that a fastened object is prevented from split. Thereby, the drilling speed is promoted, and the effort to rotate the screw is lessened. While the supporting strength of the screw is improved, the screw does not break easily while screwing. | 12-01-2011 |
20110318137 | DRILLING FASTENER - A drilling fastener utilizes at least two sides jointed to form a shank. A corner point is formed between any two sides for outwardly extending a rib therefrom. The rib includes a cutting section extended outwardly from the corner point about an arc contour, and a arc section whose two sides respectively connect to the cutting section and the side. A cutting tip is formed at a convergence of the cutting section and the arc section and located at which the largest outer diameter of the shank is defined. An accommodating room is defined between each arc section and the side. Thereby, the auxiliary cutting provided by the cutting tip allows the debris to be swiftly extruded via the accommodating room, thence preferably decreasing the driving torque and preventing the workpiece from being damaged. The fixing efficiency after screwing is further promoted. | 12-29-2011 |
20120128446 | DEVICE FOR A TIGHTENED CONNECTION OF STRUCTURAL PARTS ARRANGED ONE AFTER ANOTHER WITH DISTANCE - Device for tightened connection of structural parts positioned with distance between each other having a self-cutting screw penetrating an upper and a following lower structural part, and a screw thread engaging the structural parts. The upper structural part is prolonged by longitudinal rails received in recesses in the lower structural part, and an advance bolt is put in advance to the screw. The advance bolt stays in its advance position upon screwing back the screw thereby that a connection element activated by the displaced advance bolt causes a connection between the lower structural part and the longitudinal rails. Thereby both structural parts are kept at the existing distance. | 05-24-2012 |
20120183371 | Engineered Lumber Panel Fastener - A fastener adapted for anchoring engineered lumber panels has a threaded portion with a double included securement thread having an included angle between 15° and 25°. The ratio of the major thread diameter to the minor diameter exceeds 2.0 to provide a large thread surface to resist pull out. The fastener also includes a drill tip having an effective diameter substantially equal to the minor diameter of the thread. The fastener is configured to resist cocking upon being driven into the engineered lumber panel and to resist marring of the panel fascia. | 07-19-2012 |
20120294693 | Fastener - A fastener configured to couple a first substrate to a second substrate may include a head, a shank, and a tip. The shank may have a generally constant diameter between the head and tip, and the shank may include an unthreaded portion proximate the head, a threaded portion proximate the tip, and a reverse threaded portion therebetween. The threaded portion may include a plurality of right handed threads that continue onto the tip, and the reverse threaded portion includes a plurality of left handed threads. The unthreaded portion may have an axial length greater than an axial length of the reverse threaded portion. In addition, the fastener may include one or both of a cut extending radially inward toward the fastener axis proximate the tip and serrations on at least one of the plurality of right handed threads. | 11-22-2012 |
20120308330 | THERMALLY ISOLATING TUBULE FOR WALL ANCHOR - A tubule assembly for thermally isolating a surface-mounted wall anchor and an anchoring system employing the same are disclosed. The thermally-isolated tubule assembly is adaptable to varied anchor structures and for use with interlocking veneer ties and reinforcement wires to provide a high-strength surface mounted anchoring system for cavity walls. The stepped cylinders sheath the mounting hardware to limit insulation tearing and resultant loss of insulation integrity. The tubule assembly is thermally-isolated through the use of a series of strategically placed compressible nonconductive fittings and set within the perimeter of the anchor base. Seals are formed which preclude penetration of air, moisture, and water vapor into the wall structure. | 12-06-2012 |
20130136561 | ICE SCREW FOR FORMING A REMOVABLE BELAY POINT HAVING A SHARPENING RESERVE AT THE BASE OF EACH TOOTH - An ice screw comprises an elongated shaft with an external thread, and a bit with teeth. Each tooth has a cutting edge, and the bit is provided at a longitudinal end of the shaft. A notch is formed in bit at the base of each cutting edge in order to delimit a sharpening reserve of the associated tooth. | 05-30-2013 |
20130195579 | Method of Flow Drill Screwing Parts - A method of fastening a plurality of parts together with a flow drill screw. An indentation is formed on one side of a first part and a second part is assembled into engagement with the side of the first part with the indentation facing the second part. The flow drill screw is inserted through the indentation and material is displaced from the part into a void defined by the indentation. Two or more panels or parts may be joined by aligning a flow drill screw with voids formed by indentations that are formed by embossing one or more panels. | 08-01-2013 |
20130243547 | SCREW CAPABLE OF RAPIDLY DRILLING AND CUTTING - A screw capable of drilling and cutting includes two inclined cutting planes with a cutting edge formed on a convergence of the cutting planes. A tapered positioning member extends from the convergence of the cutting planes, where the cutting edge is divided into dual sub cutting edges by means of the positioning member. Each sub cutting edge has an inclined angle. An included angle included by the sub cutting edges is smaller than 180 degrees. Threads spiral on a shank and extend to the sub cutting edges. Setting the positioning member against on an object permits a steady performance during the first stage of screwing. Subsequently, the sub cutting edges provides a scraping effect on the object during drilling. Torque is reduced and drilling speed is promoted. | 09-19-2013 |
20130280013 | THERMAL BREAK FASTENER - A thermal break fastener includes a head that has a top side and an underside. The head has diameter. A shank depends from the underside of the head and has an end that has a longitudinal bore therein, opposite the head. The shank is formed from a thermally non-transmissive material. The shank has a diameter less than the diameter of the head. A seal is positioned on the shank. A driving/boring element has a driving point and a self-counter-bore cutter spaced from the driving point. The self-counter-bore cutter has a diameter about equal to the diameter of the shank. The driving/boring element is mounted to the shank with the self-counter-bore cutter disposed at about the end of the shank opposite the head. A two-piece configuration includes a driving/boring element including a self-counter-bore cutter and a separate a sealing head with a seal positioned on the sealing head. | 10-24-2013 |
20130302110 | FASTENER WITH MULTIPLE THREADED REGIONS - A fastener includes a shank having a point at a first end and a second, head end. A first helical thread region is formed at the first end adjacent to the point and has having a first helical thread having a first effective diameter. A sub-region of a second helical thread formed within the first helical thread region adjacent to the first end. A head at the second end includes a cutting structure, the cutting structure positioned to intersect a bottom surface of the disk and the shank, the cutting structure has a square cross-section formed by four walls intersecting the disk. A third helical thread region may be provided between the first region and the head. The shank diameter in the sub-region and the first region is smaller than the other regions. | 11-14-2013 |
20130309042 | THREADED FASTENER - A threaded fastener includes a top head portion, a shank, a thread and first and second flutes. The shank includes a threaded portion that extends axially along a central axis and a connecting portion that extends upwardly and axially along the central axis from the threaded portion to the top head portion. The thread extends upwardly and helically around an outer periphery of the threaded portion and along the central axis. The first flute is indentedly formed on the threaded portion and extends upwardly along the central axis. The second flute is indentedly formed on the threaded portion and above the first flute, and extends upwardly and axially along the central axis and opposite to the first flute. | 11-21-2013 |
20130336744 | THREADED MASONRY FASTENER - A thread forming fastener for use in concrete, masonry, brick, and the like, having a first thread, second thread, and third thread about a shank, the second thread having a major diameter greater than the major diameter of at least one of the first and third threads with grooves on either side of the second thread adapted to accommodate chips of material during fastening, and the second thread having notches in the major diameter of at least one turn adapted to engage at least one of concrete, masonry, and brick, a helical land axially extending between the third thread and adjacent first thread having an outside diameter greater than the minor diameter and less than the major diameter of the first thread and third thread, the axial land width between the third thread and adjacent first thread being at least 25% of the thread pitch. | 12-19-2013 |
20140017033 | SELF-TAPPING SCREW - A self-tapping screw includes a head, a shank provided on the head and threads provided on the shank, wherein the threads include a first contact surface and a second contact surface forming a thread angle of 40 degrees therebetween. A vertical line from a vertex of the thread angle is drawn perpendicular to the shank, and the first contact surface forms a first inclination angle with the vertical line, and the second contact surface forms a second inclination angle with the vertical line, wherein the first inclination angle is different from the second inclination angle. The present invention can be used to replace mechanical screws as it has a smaller assembly torque suitable for fastening onto lighter objects. | 01-16-2014 |
20140112733 | COMPOSITE NON-WOOD FLOORING THREADED FASTENER - A threaded fastener including a shank extending along an axis away from an enlarged head to a tip. A thread extends in a helix around the shank from the tip of the shank towards the enlarged head. A driving recess on a top surface of the enlarged head receives a tool for driving the fastener in a rotational manner around the axis of the shank. Cutter teeth are formed on a lower surface of the enlarged head. The fastener may be assembled with a hard composite non-wood material decking and a supporting metal I-beam. | 04-24-2014 |
20140112734 | SELF-TAPPING SCREW AND SCREWED FASTENING AS WELL AS BLANK FOR MANUFACTURING THE SCREW - A thread-forming screw comprising, at least in part, a shaft ( | 04-24-2014 |
20140112735 | Method And Pair Of Pinching Jaws For Producing A Drilling Tip - A method for integrally forming a drilling tip on a wire nail, in particular in order to produce a screw with the aid of a pair of pinching jaws, provides for the bulge formed by the displaced material during the integral forming of the drilling tip to be sheared off the drilling tip along the entire length of the cutting edges of the drilling tip produced and to be left connected to the drilling tip only along the longitudinal side edges of the latter by a predetermined breaking point. | 04-24-2014 |
20140147229 | Extension fastener for portable tool - An extension fastener for portable tool is described. The housing of the tool or the useful part of it encompasses a self-taping screw. The termination of the fastening screw is a perpendicular base plate for a firm support. The tool is fasten to the surrounding vegetation of any diameter or machined extensions in order to increase the tool reach of the light compact tool. | 05-29-2014 |
20140178148 | FLAT DRILL END OF A SCREW - A flat drill end of a screw mainly includes a cylinder with a drill end having a thread wrapped around the cylinder, and a flat drill portion formed to the cylinder along to the drill end of the cylinder with a predetermined length. The thickness of the flat drill portion is less than a half of the width of the flat drill portion for receiving more debris and ejecting the debris during the drilling so as to form a drill screw capable of drilling fast and preventing split on to the working piece. | 06-26-2014 |
20140294534 | VARIABLE THREAD KNURL FASTENER - A fastener includes a shank having a point at a first end and a second, head end. A first portion of a thread is formed with a first thread angle and a second portion of the thread is formed with a second thread angle. One or more knurls are provided in the shaft in the threaded or unthreaded regions of the fastener. The thread may be serrated or jagged over one or more portions of the fastener, including the area of the first thread angle. | 10-02-2014 |
20140314522 | Screw - A screw includes a shank and at least one end cutting groove. The shank includes a lower section disposed near an insertion end thereof and an upper section disposed near a head end thereof. The lower section has triangular transverse cross sections, and the upper section has circular transverse cross sections. A first thread is disposed on the lower section of the shank, and a second thread is disposed on the upper section of the shank. A non-threaded section is disposed between the lower section and the upper section of the shank. An outer diameter of the non-threaded section is larger than an outer diameter of the upper section. The end cutting groove is formed in the lower section of the shank, and an included angle between 3 and 9 degrees is formed between an extending direction of the end cutting groove and a longitudinal axis of the shank. | 10-23-2014 |
20150010374 | VARIABLE THREAD FASTENER - A fastener includes a shank having a first end and a second end. A first portion of a thread is formed with a first, symmetric thread angle and a second portion of the thread is formed with a second, asymmetric thread angle. The thread may be serrated or jagged over one or more portions of the fastener, including the area of the symmetric thread angle. A blunt end comprises the leading end of the fastener. | 01-08-2015 |
20150139751 | SELF-DRILLING SCREW AND USE THEREOF - A self-drilling screw made of an austenitic or other stainless steel, is provided having a drilling tip. The shank is integrally formed of an austenitic or other stainless steel and has a galvanically applied thin coating at least in the tip region, with the coating being harder than a non-coated region. The thin coating has a pearl-like or columnar surface, a coating thickness of at least 2 μm and a hardness in a range of from 500 to 1500 HV0.3. The self-drilling screw can be produced more simply than a typical self-drilling screw, in which the drilling tip consists of a harder material than the shank and is welded to the shank made of stainless steel. The coating ensures the drilling capacity and thread formation. | 05-21-2015 |
20150322990 | Schraubelement - Screw Element - A screw element ( | 11-12-2015 |
20160003283 | Steel stud anchor - A metal anchoring fastener fastens millwork onto walls constructed with wall cladding fastened to steel studs. The load typical of a loaded cabinet is borne by the steel stud anchors owing to the mate between the profile of the steel stud anchor and the layers of millwork and wall cladding and steel stud that said anchor penetrates. The pitch of the thread adorning the profile of the steel stud anchor progresses non-linearly along the length of said shaft, the shaft is generally non-linear in profile, and the thread profile is non-uniform along the length of said shaft. The anchor can also support a secondary screw concentrically penetrating the void at the center of the anchor, in order to hang loads from a wall, with or without millwork. Predrilling of the holes can enable installation of these zinc anchors. | 01-07-2016 |
20160091010 | FLOW DRILL SCREW ASSEMBLY AND METHOD - An assembly is provided including a first workpiece and a second workpiece that are positioned together. A groove is provided in an exposed face of one of the workpieces. A location is provided at the bottom of the groove having a reduced cross-sectional thickness. The flow drill screw is extended through this location when joining the workpieces together. | 03-31-2016 |
20160186794 | Trim Board Screw - A trim board fastener for composite or plastic material comprises a head having a recessed underside with a rim. A shank extends from the head and has an upper region, an unthreaded intermediate land and a lower region. The upper region has a first diameter traversed by a left hand thread having a first pitch. The lower region has a diameter smaller than the diameter of the upper region and is traversed by a double lead right hand thread which has a second pitch larger than the first pitch. | 06-30-2016 |
20160252126 | WELDLESS BUILDING STRUCTURES | 09-01-2016 |