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Class 411/413 - Of different pitch


Subclass of Class 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
Definition: Subject matter wherein the pitch of one of the helical ridges
No. of patents: 81
Last issue date: 04/13/2010


1      
NumberTitleIssue Date
7695228Screw
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 forcibly driven...
04/13/2010
7478987Method and apparatus for fastening steel framing using helical features
A pin with threads that extend along a portion of a stem of the pin interact with framing members as the pin pierces and is axially driven through the framing members. The interaction of the threads with the framing members cause the pin to rotate as the threads pas...
01/20/2009
7402016Variably 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
7367768Deck 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
7350438Connection rod for internal combustion engine
An internal combustion engine connecting rod is designed with bolts having a minimum required strength. A strength safety factor Sfa is calculated based on an axial strength limit load FX of the bolt and the maximum load FB to be born by the bo...
04/01/2008
7326014Interactive fit screw thread
A threaded fastener includes a curved-line path thread provided in a helical pattern along a shank of the fastener. The curved-line path can be provided on either side of the standard straight-line path or on opposite sides of the straight-line path. The curved-line...
02/05/2008
7322978Bone anchors for use in attaching soft tissue to a bone
Improved bone anchors are disclosed for anchoring one or more sutures attached to soft tissue to a bone. The bone anchor has an anchor body that extends between a distal and a proximal end. A bore is formed axially in the anchor body and opens at the proximal end. O...
01/29/2008
7303562Pedicle screws with inclined channels to hold support rods
This invention is a pedicle screw (1), comprising a threaded rod (2) having a longitudinal axis (XX) and a head (4) in which there is a channel (5) adapted to receive a spinal support rod, and a means for blocking the rod; the channel is ...
12/04/2007
7255523Dual threaded screw for composite materials
An improved dual threaded fastener for composite materials having a head and a shaft. The head is affixed to one end of the shaft and the shaft includes a point at its other end. The shaft includes an upper threaded portion and an upper threaded portion. The diamete...
08/14/2007
7232283Pin fastener for achieving metal-to-metal connections
A new and improved fastener, uniquely adapted for securing together vertically oriented stud members and horizontally oriented track members of wall framework structures, comprises a forwardly extending pointed tip portion having a tangent ogive configuration so as ...
06/19/2007
7217195Method of producing left-right screw
The present invention provides a method for manufacturing a right- and left-hand screw having a first external right-handed thread and a second external left-handed thread formed by an inexpensive rolling process using a rolling die with a first thread-cutting die f...
05/15/2007
7213999Fastener 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
7189045Deck 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
7172380Wheel nut assembly
A wheel nut assembly includes a stud (1), a main wheel nut (4) mountable on threads (3) provided on the stud, and a retaining nut (6) engageable with threads (5) provided on the stud to prevent accidental loosening of the wheel nut...
02/06/2007
7153075Press fit fastener and method of producing it
A press fit fastener (1) includes a shank (2), a head (3) and a press fit portion (4) being located at the shank (2). The head (3) is located at the first end of the shank (2). The press fit portion (4) include...
12/26/2006
7114902Self-tapping bush-shaped screwed insert
A thread-cutting screwed dowel has an essentially cylindrical, sleevelike dowel body with an axial bore and with a load engagement device disposed in the interior of the dowel body, for example with a female thread. On its outer face, the dowel body is equipped with...
10/03/2006
7090453Screw
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
7070376Self-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
7063702Screws of cortical bone and method of manufacture thereof
A screw formed of cortical bone for use in the human body with an implant having a screw hole for receiving at least a portion of a screw therethrough, includes a shaft with a thread along at least a portion of its length. The thread has an outer diameter dimensione...
06/20/2006
7063701Screws of cortical bone having a trailing end configured to cooperatively engage an implant
A screw formed of cortical bone for use in the human body with an implant having a screw hole for receiving at least a portion of a screw therethrough, includes a shaft with a thread along at least a portion of its length. The thread has an outer diameter dimensione...
06/20/2006
7044702Screw 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
7040850Fastener for use with frangible material
A metal fastener for frangible material has a threaded shank, a head proximate one end of the shank and a tip at the opposite end. The fastener has a coarse pitch and relatively large ratio of major to minor diameters suited for securing the fastener into frangible ...
05/09/2006
7037059Self-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
7029220Band 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
7021877Self-tapping screw
The invention relates to a self-tapping screw, whose threads, in a rear area (facing the head), have a substantially cylindrical external diameter and, in a front area (facing away from the head), extend with an external diameter which decreases towards the end of t...
04/04/2006
6976818Threaded fastener particularly suited for plastics
A male threaded fastener particularly suited for use in plastics has a high thread and a low thread. Depressions are provided in the pressure flank of the high thread. Dimensional relationships are defined for scaling the fastener to commonly accepted sizes. ...
12/20/2005
6974289Pressure flank screw and fastening system therewith
A male threaded fastening member is provided with depressions in at least one or several helix wraps of the thread adjacent the head, the depressions extending inwardly from an edge of the thread at least part way toward a shank of the male fastening member. In a fa...
12/13/2005
6966737Deck screws suitable for use with composite lumber
The present invention is directed to a deck screw intended for use with composite lumber, although it can be used with other wood products, such as pressure treated lumber. The deck screw of the present invention may be provided with a head and a shaft that has two ...
11/22/2005
6945729Structure for fastening by screw
A second material is fastened to a first material by a tapping screw having a male thread. The first material includes a hole and a concave portion around the hole. The hole has a surface in which a female thread is formed as the tapping screw is screwed in. ...
09/20/2005
6941635Screw for remnant-producing alternative lumber material
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 forcibly driven...
09/13/2005
6904947Apparatus for wrapping articles, particularly groups of cigarettes
In a wrapping apparatus, particularly for enclosing articles consisting of or containing groups of cigarettes in wrapper material, the articles are received in a pocketed drum in which at least one overlapped region of the wrapper material is heat scaled. Preferably...
06/14/2005
6789991Screw
A screw includes a rod-shaped portion, and a spiral-shaped thread winding around the rod-shaped portion. The rod-shaped portion has a straight portion, and a front end portion tapering towards a pointed front end. Several cutting trenches are formed on the rod-shape...
09/14/2004
6666638Deck 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
6561741Fastener with aligning lead thread
A fastener having an aligning lead thread that does not follow the helical pattern of the fill threads around the shank of the fastener. The aligning lead thread is located on the shank distant from the first full thread to enable the engage the threads o...
05/13/2003
6390506Fastening system for fixing a motor vehicle steering column assembly unit
A fastening system for fixing a first assembly unit to a second component for use especially in the motor vehicle industry is presented, which has at least one fastening screw, a corresponding first preassembly thread on the first assembly unit, in which ...
05/21/2002
6328516Screw 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
6325583Screw for fixing wooden laths on a roof substructure or a wall foundation
In a screw (1) for fastening wooden laths (10) to a roof substructure provided with wooden beams (9) among other alternatives, one threaded portion (2, 3) each adjoining the head (5) of the screw and adjoining a penetrating or boring point (6) is provided...
12/04/2001
6053653Fastening method, fastening system and bolt used therefor
The present invention provides a fastening method for fastening a first member to a second member by a bolt, comprising the steps of: inserting the bolt through a hole in the first member into a hole in the second member to start threadably engaging the b...
04/25/2000
6042314Fastener and method of operation thereof for installing a thin layer of material at an adjustable distance from a support
A fastener has a screw with an anchor located thereon, the anchor being spaced apart from the head. The anchor has a cut-away portion with a leading edge and a trailing edge of the cut-away portion angling downward. The leading edge angles downward a furt...
03/28/2000
6030162Axial tension screw
A screw having a root and threads formed on the root. The screw is configured to generate and/or maintain axial compression between threads formed in leading and trailing sections of the screw either by virtue of pitch differential in the threads or the w...
02/29/2000
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