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| Number | Title | Issue Date |
| 8070405 | Self drilling bolt with anchor An anchoring device having a tapered, at least partially threaded shank with a front end, a drilling head and at a rear end thereof, a torque applying head and an anchor coaxially enveloping a front portion of the shank. The arrangement is such that during drilling ... | 12/06/2011 |
| 7686556 | Wood truss fastener A truss fastener which includes a shaft having a head and a tip. Threading extends along the shaft from the tip end toward the head end of the shaft. The threading is interrupted, abbreviated, and/or otherwise separated by wings projecting from the surface of the sh... | 03/30/2010 |
| 7677854 | Self-boring and self-tapping screw The invention relates to a self-boring and thread-forming tapping screw having a screw shaft with a screw tip at one end and at the other end a force application member for the transmission of a turning moment. The screw shaft includes a threaded section with the sc... | 03/16/2010 |
| 7402016 | Variably threaded screw A variably threaded screw has a first end and a second end, the first end of the shaft terminating in a tip and the second end having a widened head thereon. A first helical thread portion is located on the shaft adjacent the widened head. A second helical thread po... | 07/22/2008 |
| 7377019 | Method and apparatus for fastening together structural components A method and apparatus for fastening a first relatively soft structural component such as a wood panel to a second relatively hard structural component such as a steel angle iron using fasteners each having a forward self-drilling portion, a rearward, self-tapping p... | 05/27/2008 |
| 7367768 | Deck screw and installation method for composite lumber A deck screw and an installation method is intended for use with composite lumber, although it can be used with other products. The deck screw may be provided with a head and a shaft that has two regions of varying diameter. The upper region has threads that exceed ... | 05/06/2008 |
| 7334976 | Countersunk screw The invention relates to a countersunk screw having a threaded shank and a countersunk head, which latter has a conical surface tapering at a countersinking angle in the direction of the threaded shank. The conical surface has a plurality of ribbed protrusions distr... | 02/26/2008 |
| 7328482 | Fitting system The invention relates to a fitting system according to parent application DE 101 19 987.3 for rotatably bearing a door leaf (2) in a glass construction. A fitting (1) is disposed on the top and/or at the bottom of said door leaf (2) and interact... | 02/12/2008 |
| 7293947 | Screw having a knurled portion A fastener for securing particle or bulge producing materials, a method of manufacturing the fastener, and a method of using the fastener are provided. The fastener has a thread on a shank, and a knurled portion disposed between the thread and a head. The fastener a... | 11/13/2007 |
| 7290972 | Screw anchor for friable material A screw anchor includes a roughly cylindrical body (1) with a drilling portion (3) provided, at its free end, with drilling teeth (14-16), at the other end of the body, a bearing flange (5) and an external screw thread (7). ... | 11/06/2007 |
| 7213999 | Fastener with opposite hand threads for securing two components together A threaded fastener has opposite hand threads provided thereon for securing two components together, such as a companion flange and a flange yoke assembly that is used in a vehicular drive train system. The companion flange includes a hollow cylindrical sleeve porti... | 05/08/2007 |
| 7214019 | Self-tapping screw A self-tapping screw having a boring part and a threaded shaft for fixing a panel-type object to a preferably metallic substructure is provided. The screw is configured in such a way that it produces a through hole in the panel type object, said hole accommodating t... | 05/08/2007 |
| 7189045 | Deck screws suitable for use with composite lumber A deck screw is intended for use with composite lumber, although it can be used with other wood products, such as pressure treated lumber. The deck screw has a head and a shaft that has two regions of different diameter. The upper region has threads that exceed the ... | 03/13/2007 |
| 7156598 | Waffle stud for insert molded plastic members A fastener is configured for use in the manufacture of molded plastic components that will be subsequently attached to other components by the fastener. The low profile head portion of the fastener has a rounded contoured and convoluted top surface to facilitate the... | 01/02/2007 |
| 7140814 | Spade-type drill bit having helical configuration A spade bit including a longitudinally extending shaft having a cutting member located at a distal end thereof. The cutting member comprises a pair of helically shaped, opposed blades joined along the longitudinal axis of the shaft and an axially extending pilot spu... | 11/28/2006 |
| 7090453 | Screw A screw which can be more quickly screwed into a work piece and has better chip-exhausting effect. The screw has a rod body and higher thread and lower thread formed on the rod body. On a conic section of the screw, a cutting thread with another guide angle larger t... | 08/15/2006 |
| 7090452 | Tapping screw A tapping screw includes a head, a shank and a cutting member, Said the shank has male threads, and the cutting member extends down from the shank and has a plurality of cutting grooves lengthwise formed and/or a plurality of wings also lengthwise formed; an annular... | 08/15/2006 |
| 7070376 | Self-drilling, self-anchoring fastener for concrete A fastener adapted for anchoring into a masonry structure, such as a concrete block, employs an epoxy resin system so that the fastener is both mechanically engaged and bonded to the structure. In one preferred configuration, the bead is composed of a hardener, a re... | 07/04/2006 |
| 7044702 | Screw with a plurality of screwing angles and mold device for forming the same The screw with a plurality of helix angles comprises a first section having a first thread with a first helix angle, at least one third section having a third thread with a third helix angle; and a fifth section having a fifth thread with a fifth helix angle wherein... | 05/16/2006 |
| 7037059 | Self-tapping screw for composite materials In accordance with an embodiment of the invention the threads of the two thread sections have an opposite pitch. Further, chips are reduced in that the tip of the screw near the thread section has been configured as a multiple screw-thread, in particular a double sc... | 05/02/2006 |
| 7029220 | Band shaped connected screws with inverse screw threads A plurality of screws (21) are aligned in parallel with each other, and head side portions (21b) of shaft portions (21A) of the screws are fixed, by a band (30) fixed to a strip sheet (31), to be band-shaped connected screws... | 04/18/2006 |
| 7025551 | Fastener clip for use in supplying fasteners to a fastener driving tool A clip of fasteners for use in attaching a structural panel to a metal substrate comprises a plastic strip with openings characterized by inwardly-extending ribs for gripping and supporting fasteners that comprise a forward self-drilling portion, a rearward self-tap... | 04/11/2006 |
| 7014383 | Shear wall hold-downs and wall anchor connectors A connector for securing a first building structural member to a second building structural member is provided. The connector includes a seat member with an opening for receiving an anchor bolt that secures the connector to the second building structural member. The... | 03/21/2006 |
| 6904728 | Log home construction system A wall includes a plurality of wall members stacked substantially vertically and including a bottom wall member and a top wall member. Each wall member has an upper surface in opposed relation to a lower surface and a through opening extending from the upper surface... | 06/14/2005 |
| 6887023 | Screw with protruding sheets on head portion A screw with protruding sheets on a head portion comprises a thread portion; a screw tail at one end of the thread portion, a slot formed on the screw tail; a plurality of screwing sheets formed at another end of the thread portion; a plurality of recesses formed be... | 05/03/2005 |
| 6739815 | Wood screw A wood screw is provided which can be smoothly driven in with a small driving force. Helical ribs that are the highest at the center and gradually lower toward both ends are formed on the outer periphery of the tip of a shank having threads on the outer periphery at... | 05/25/2004 |
| 6676353 | Self-drilling, self-tapping screws A clip of fasteners for use in attaching a structural panel to a metal substrate comprises a plastic strip with openings characterized by inwardly-extending ribs for gripping and supporting fasteners that comprise a forward self-drilling portion and a rea... | 01/13/2004 |
| 6672812 | Wood screw with different shank radii A wood screw includes a head part, a tapered insert part, and a shank part disposed between the head part and the tapered insert part. The shank part has first and second shank segments adjacent to the head part and the tapered insert part, respectively. ... | 01/06/2004 |
| 6666638 | Deck screw having multiple threaded sections A fastener for securing remnant-producing materials, a method of manufacturing the fastener, and a method of using the fastener are provided. The fastener is configured such that in use any remnants or slivers produced by rotation of the fastener are forc... | 12/23/2003 |
| 6644904 | Wood screw with square threads A wood screw to be used exclusively for fastening a wooden plate mainly has a screw shank helically disposed with squared threads, wherein a shaft flange is disposed at the bottom end of the screw shank to be parallel or slanted to the longitudinal axis o... | 11/11/2003 |
| 6616391 | Screw for plastic composite lumber A fastener for use in conjunction with plastic lumber is provided with an undercut head and radially projecting helical flutes on the shank which combine to contain plastic lumber material displaced by the shank and head beneath the head, permitting a sin... | 09/09/2003 |
| 6382892 | Wall anchor with improved drilling tip A wall anchor for use in a friable material, composed of a generally cylindrical body having a flanged end, a central portion, and a drill end. The drill end has a generally flat blade which includes a first portion and a second portion. The first portion... | 05/07/2002 |
| 6338599 | Abrasion tool for improved electrical conduction of connections Conductive devices and tools to provide electrical conduction with a generally planar conductor which is covered with an insulation substance such as paint, rust or dust, by scraping a portion of the conductor and removing the insulation substance. A cond... | 01/15/2002 |
| 6328516 | Screw with cutting edge A screw has a shank portion (20) provided with a thread (21) and passing over via a transition into a conical tip (22). One or more parallel fins (24) are provided at least in the area of the tip. They are formed with cutting edges (23) and preferably dis... | 12/11/2001 |
| 6296433 | Large diameter tapcon with debris reservoir end or tip A masonry anchor is provided with a reaming portion which includes recessed portions for defining reservoir regions for accumulating debris generated by the reaming operation when the anchor is installed within a masonry structure. The accumulation of the... | 10/02/2001 |
| 6290444 | Countersunk head screw A countersunk head screw is provided. The countersunk head screw includes a head attached to or integrally formed with the shank. A thread extends over a partial region of the shank and a portion of the head includes a bearing surface that tapers conicall... | 09/18/2001 |
| 6120225 | Lamina-shaped borepiece for self-boring fastening elements 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 edges (11,12) are provid... | 09/19/2000 |
| 6109850 | Screw fastener in metal connector to wood structure shear connection A wood screw for holding a wood structural member to another member such as a sheet metal member a heavy metal member or another wood member wherein the screw includes a shank having a threaded portion and an unthreaded portion. A knurled means is provide... | 08/29/2000 |
| 6106208 | Screw with two cut removing curved grooves A screw with two cut removing curved grooves has a head and a shank with a helical threads. The shank has two lengthwise grooves partially overlapping with each other, when viewed projectively from the horizontal surface or from the vertical surface of th... | 08/22/2000 |
| 6050765 | Fastener for logs and fastening technique therefor A fastener for fastening together logs and a technique therefor is directed to a self-drilling/tapping fastener which allows the fastener to be driven through the log to be secured without pre-drilling a bore. Counter-bore wings on shaft segment of the fa... | 04/18/2000 |
