| Entries |
| Document | Title | Date |
|---|
| 20080219800 | Threaded fastener and fastener system - A wave threaded fastener and system. A wave thread extends from the outer surface of the body and is made up of a profile wave and a lateral wave. The profile wave includes a plurality of profile crests and profile roots defining a plurality of profile thread widths. The lateral wave includes at least one lateral crest and at least one lateral root defining at least one wave period. Each wave period forms a period arc having a period arc angle and the sum of all period arc angles about the lateral Wave equals three hundred and sixty degrees. Each of the profile crests and roots are aligned with corresponding lateral crests and roots and the wave thread travels one profile thread width per each period arc traveled. | 09-11-2008 |
| 20080260494 | METHODS AND APPARATUS FOR COUPLING GAS TURBINE ENGINE COMPONENTS - A method facilitates assembling a gas turbine engine assembly including at least a first member and a second member. The method comprises inserting a threaded fastener through an opening formed in a flange, and providing at least one shank nut including a flanged mating end, an opposite non-mating end, and a body extending therebetween. The body includes an internal surface, an external surface, and a centerline extending between the body ends. The flanged mating end includes a substantially planar exterior surface that is aligned perpendicularly to the centerline and an annular groove that extends from the exterior surface at least partially towards the non-mating end. The method also comprises securing the assembly together such that the mating end is positioned flush against the flange and such that the threaded fastener extends at least partially into a bore extending through the shank nut and defined by the shank nut internal surface. | 10-23-2008 |
| 20080260495 | THREADED SCREW FASTENER WITH MULTIPLE CHARACTERISTIC THREADS - A fastener with multiple thread characteristics includes a shank and head. The shank has a penetrating tip distal most from the head. The shank includes a first, conventional thread formation formed therein adjacent the penetrating tip and a second, anti-back-out thread formation adjacent the conventional thread formation, between the conventional thread formation and the head. | 10-23-2008 |
| 20090022568 | SELF-TAPPING CONCRETE SCREW - In order to improve the holding force of a self-tapping concrete screw ( | 01-22-2009 |
| 20090053008 | TAPPING SCREW - It is possible to prevent a screwing torque from becoming excessively high even when a screw is threadedly engaged into a deep guide hole. In a tapping screw | 02-26-2009 |
| 20090060676 | BOLT - In a bolt of the present invention, a guide portion ( | 03-05-2009 |
| 20090092463 | Fastening element - A fastening element has a shaft ( | 04-09-2009 |
| 20090110512 | Higher fastening screw - The present invention pertains to a higher fastening screw comprising a plurality of concavities formed on the threads, which are connected in sequence for being presented as a state of a single helix. Further, the concavities separately located adjacent to the screw head and to the drilling portion are disposed at relative positions for being accurately aligned by an imaginary line. In this manner, the configuration of the concavities would efficiently cut and sever the fibers of the object, so as to achieve a lower screwing resistance for a higher screwing efficiency and prevent the injuries to the operators. | 04-30-2009 |
| 20090110513 | Self-tapping screw | 04-30-2009 |
| 20090110514 | Screw | 04-30-2009 |
| 20090155018 | Thread-tapping screw - A thread-tapping screw ( | 06-18-2009 |
| 20090175702 | HIGH TORQUE TRANSMISSION FASTENER AND SOCKET THEREFOR - A fastener includes a driven head and a shank portion. The driven head has a top end, a bottom end, a plurality of flat guide surfaces connected between the top and bottom ends, a plurality of angularly spaced-apart rounded driven lobes each connected between two adjacent flat guide surfaces, and a flanged abutment section projecting outwardly and radially from the bottom end. Each flat guide surface is indented between two adjacent rounded driven lobes. The shank portion is connected to the driven head, and has a thread extending helically around an outer periphery of the shank portion. | 07-09-2009 |
| 20090290954 | Threaded Fastener with Retainer and Method of Making Such Fastener - A fastener element ( | 11-26-2009 |
| 20100068003 | Anti-Cross Threading Screw - An anti-cross threading screw ( | 03-18-2010 |
| 20100135746 | CONNECTING BOLT - A connecting bolt has: a screw rod which has threads in outer circumference part; a guidepost which is integrally formed so that the guidepost projects from a tip part of the screw rod, and which is the same outer diameter size as the root diameter of a thread, or is outer diameter size smaller than the root diameter of a thread; a shavings insertion hole which is formed in the guidepost and the screw rod; a tap part which is formed in a thread near the guidepost; a notch which is provided at least two or more, guides shavings into the shavings insertion hole, and is formed in the tap part and the guidepost; and a connecting means of the shape of a bolt or a nut which is integrally formed in the back end part of the screw rod. | 06-03-2010 |
| 20110110745 | SCREW - A screw has a screw head and a shank. The screw head has a square cavity, a hexagonal cavity or a hexagonal boss to be wedged by a screw driver for wrenching. The shank has four sections of threads on the periphery. A first thread is asymmetrical to facilitate drilling holes and spaced with a first threaded pitch. A second thread has a carved V-shaped tail end extended in a direction of the shank at a length larger than one of the first threaded. A third thread has asymmetrical saw-type threads, and a fourth tread is asymmetrical. The screw thus formed can rapidly perform thread tapping and debris dispelling, and reduce friction and expand drilling holes and achieve fast fastening. | 05-12-2011 |
| 20110188963 | WALL ANCHOR SYSTEM - A wall anchor system includes an anchor member installable into a hollow wall. The anchor member includes a body having a first end that extends to a second end through an intermediate portion. The body includes an internal passage having a fastener retaining feature provided adjacent the first end. A fastener member is operatively engageable with the anchor member. | 08-04-2011 |
| 20110286814 | THREAD-FURROWING SCREW - A thread-furrowing screw comprises a shaft portion made of solid material and a thread portion attached to the shaft portion, which thread portion is wound from a profiled metal strip. | 11-24-2011 |
| 20110305540 | Impact-drivable screw with elastomer seal and tip highlight - An asymmetric thread impact drivable screw and clip for use with a power impact device for penetrating wood fibers while minimizing cut fibers. The screw includes an impact head and a conical shaped tip having a ballistic insertion angle at the ends of a shank. The shank defines asymmetrical threads with an insertion flank having a long side at a slide angle peaking at a crest supported by a catch flank positioned at a grip angle. Varying tool accepting recess are taught for the head along with multiple thread sections. A mushroom compaction thread section is also taught. | 12-15-2011 |
| 20120114448 | FASTENING METHOD OF A FASTENER - A fastening method of a fastener, applied to combine a metal object with a target object, prepares a holder, a cover, and a screw penetrating through the holder in a preparing step, drills a pre-drilled hole on the metal object to receive the holder and to secure the screw in a prearranging step, fixes the screw cased with the holder to the target object in a securing step, and finally places the cover on the holder for enveloping a head of the screw in a lodging step. Accordingly, the screw cased with the holder prevents a shank of the screw from having a direct contact with the metal object. Thus, the screw is not subject to rustiness. | 05-10-2012 |
| 20130034405 | Screw with Helical Groove for Receiving Chippings - A screw includes a shank and a thread extending spirally around an outer circumference of the shank. The thread includes a plurality of thread convolutions each having a front flank facing an insertion end of the shank and a rear flank facing away from the insertion end. The screw further includes at least one helical groove. The helical groove is formed in the outer circumference of the shank and extends helically along bottom edges of one the front and rear flanks of the thread convolutions. The helical groove is adapted for receiving chippings produced by the thread screwing into articles to be fastened, allowing rapid insertion of the screw into the articles while providing a high tightening force. | 02-07-2013 |
| 20130058735 | STRUCTURE OF CONCRETE SCREW - A concrete screw includes a rod body which has a top end forming a head for tightening operation and a bottom end forming an engaging section. A first thread is formed on the rod body and extends, at a helix angle between 16 and 23 degrees, from the head toward the engaging section. The first thread has a top-side flank that defines a first thread flank angle ranging from 90 to 120 degrees with respect to the rod body. The first thread has a pitch that ranges from 5 mm to 20 mm. Three cutting notches are formed in and distributed along the first thread and are close to the engaging section. The cutting notches have a depth substantially corresponding to a distance from an apex of the first thread to the rod body. The rod body may selectively form a second thread extending between the head and the engaging section. | 03-07-2013 |
| 20130142590 | Fastening Element - A fastening element, which may be in the form of a blind rivet or screw, is intended to be fired into an unperforated workpiece. In its front region that is intended to be fired into the workpiece, it includes a punching section which is formed in a cylindrical manner, and has a front end face which extends obliquely to the longitudinal axis. The punching section may be smaller in diameter than the body of the fastening element or else have the same diameter. The section between the end face and the outer side of the punching section forms a punching edge. On account of the oblique profile of the end face, said punching edge is arranged such that, when the fastening element is fired in, the punching edge first of all strikes the metal sheet at one or else at two points, and the opening in the metal sheet is enlarged by shearing off the metal sheet at a point migrating around the circumference. | 06-06-2013 |
| 20130142591 | Fastening Element - A fastening element, which may be in the form of a blind rivet or screw, is intended to be driven into an unperforated workpiece. In its front region that is intended to be driven into the workpiece, it includes a punching section which is formed in a cylindrical manner and has a front end face which extends obliquely to the longitudinal axis. The punching section may be smaller in diameter than the body of the fastening element or else have the same diameter. The section between the end face and the outer side of the punching section forms a circumferential edge. On account of the oblique profile of the end face, this circumferential edge is arranged such that when the fastening element is driven in, the circumferential edge first of all strikes the metal sheet at a front point. At this front point, the circumferential edge is in the form of a cutting edge extending in the circumferential direction. Upon striking the workpiece, it first of all forms a cut which is then enlarged in both circumferential directions as the procedure continues. | 06-06-2013 |
| 20130266398 | FASTENER, INSTALLATION TOOL AND RELATED METHOD OF USE - A fastener including a chisel point that pre-bores a hole in a work piece to prevent damage to the work piece as the fastener advances. The fastener can include a head, a shaft and a chisel brake point formed at an end of the shaft. The chisel brake point can include first and second opposing inclined surfaces disposed at an angle of about 80° to about 150° relative to one another. A thread can begin adjacent the chisel brake point and form an extension of an inclined surface and/or a chisel edge. The chisel brake point can scrape material from a work piece while pre-boring a hole. The material can be transferred to the thread, and subsequently fed up the thread, out of the pre-bored hole. The chisel brake point can also selectively retard advancement of the fastener into the work piece. Methods of installing the fastener also are provided. | 10-10-2013 |
| 20130302109 | SCREW MADE OF LOW-ALLOY CARBON STEEL, AND METHOD FOR PRODUCING SUCH A SCREW - The invention relates to a screw having a head, an adjoining retaining section and a functional tip for use as a self-tapping screw. The functional tip is of greater hardness than the retaining section. The entire screw is made of hardened low-alloy carbon steel. The special feature of this screw is that its functional tip has a higher carbon and/or nitrogen content than its retaining section | 11-14-2013 |
| 20140044499 | SELF-TAPPING SCREW - [Object] To provide a self-tapping screw which is the most suitable for tightening a workpiece made of a soft material such as a resin or an aluminum alloy. | 02-13-2014 |
| 20150063946 | FASTENER WITH HEAD CUTTING STRUCTURE - A fastener includes a shank having a point at a first end and a second, head end. A head structure at the head end includes a top portion and having a cutting structure, the cutting structure comprising four planar walls, each wall engaging the shank at an angle, each wall adjoining an adjacent wall by a rounded edge. | 03-05-2015 |
| 20150093211 | BOLT FOR GAS TURBINE ENGINE ROTOR - The bolt has, in sequence along a bolt axis: a threaded portion, a thread run-out portion, a shank, and a head, the threaded portion having a thread with a given root radius and a given depth, the thread run-out portion connected to the shank via a thread run-out fillet having a thread run-out fillet radius, the thread run-out fillet radius being between two and six times the thread root radius. | 04-02-2015 |
| 20150377273 | 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 ( | 12-31-2015 |
| 20160131171 | SELF-TAPPING SCREW FOR SOFT METALS - Provided is a self-tapping screw for soft metals that features low required initial driving torque, high axial force in the tightened state, small axial force reduction due to heat or the like, and a low manufacturing cost because no intricate and expensive mold is required, and also has an advantage that an amount of produced chip powder is small. The self-tapping screw includes a tapered smaller diameter part | 05-12-2016 |
| 20160138639 | BOLT - The bolt of the present invention can reliably peel coating even when fastened with a low torque, and can secure sufficient conductivity. A coating peeling part | 05-19-2016 |
| 20160186795 | THREADED SCREW WITH SHANK SLOT - The present invention is an improved screw fastener design that exhibits greater holding power and a reduction in installation time over previously known designs. | 06-30-2016 |
| 20160201711 | THREADED FASTENING ELEMENT | 07-14-2016 |
