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| Number | Title | Issue Date |
| 7303562 | Pedicle 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 |
| 7040850 | Fastener 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 |
| 7021877 | Self-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 |
| 7018154 | Paint spray gun This invention is directed towards a paint spray gun having a gun body with a male thread and having an air nozzle ring with a female thread which can be screwed onto the male thread of the gun body. The diameter of the thread is between about 30 and about 40 mm. Th... | 03/28/2006 |
| 6994502 | Pole joint screw for a basketball goal system A pole joint screw may be used to connect a first section of a basketball support pole and a second section of a basketball support pole. The pole joint screw may include an elongated body including a first end and a second end, a head disposed on the first end of t... | 02/07/2006 |
| 6966737 | Deck 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 |
| 6949100 | Bone screw for use in orthopaedic surgery The invention relates to an improved bone screw for use in orthopaedic surgery, in particular with external fracture fixation devices, of the type which comprises ahead (3), a shank (4), and a threaded portion (5) tapering towards a tip (2 | 09/27/2005 |
| 6939355 | Bone anchors for bone anchor implantation device Bone anchors and bone anchor implantation devices can be used to maintain or improve urinary continence by suspending or stabilizing the bladder neck of a patient. The bone anchors have a generally cone-shaped head with two or more cutting edges which reduce the amo... | 09/06/2005 |
| 6923611 | Self-drilling fastener A self-drilling fastener for attaching wood substrates to metal substrates comprises an elongate shank defining an axis, the shank having a first end and a second end. A drilling tip having a drill point and an axial length is formed at the first end. A broad head i... | 08/02/2005 |
| 6810956 | Thread coupling for a drill string for percussive rock drilling A thread coupling for a drill string for percussive drilling has a male thread (5) and a cooperating female thread (4). The male thread is arranged on a first drill string element (3) having a first impact surface (6). The female thread i... | 11/02/2004 |
| 6702537 | High profile thread forming screw A thread forming screw configured for insertion into relatively hard plastics includes an elongated core region having two ends, a head at one end and a point at the opposite end, a helical thread extending generally radially from the core region, the thr... | 03/09/2004 |
| 6672813 | Tapping screw The present invention is directed to provide a tapping screw for a soft material having a sufficiently large stripping torque compared to a driving torque and an increased tolerance of a fastening torque, and characterized in that it has threads each havi... | 01/06/2004 |
| 6454315 | Oil well pipe screw joint, and threading method and apparatus therefor An oil-country-tubular threaded joint can withstand tensile forces, and in addition, other forces such as compression and bending forces, thus producing highly improved characteristics in regard to the prevention of fluid leakage. The oil-country-tubular ... | 09/24/2002 |
| 6419435 | Wedging masonry anchor bolt and sleeve anchor for masonry bolt used in cinder blocks An enhanced strength screw-type, self-tapping masonry anchor bolt for fastening a fixture or other attachment to masonry in which a hole is drilled to receive the anchor. The anchor is provided with a shank having a root section surrounded by at least one... | 07/16/2002 |
| 6394726 | Threaded fastener A threaded fastener having a shaft with a screw thread disposed thereabout, a pressure flank of the screw thread having a first pressure flank angle on a radial inner portion thereof and a second pressure flank angle on a radial outer portion thereof, the... | 05/28/2002 |
| 6264677 | Wedge screw suture anchor A suture anchor for facilitating the anchoring of soft tissue to a bony site includes a distal sharpened tip, and intermediate threaded section and a proximal drive head. The drive head is configured to receive a socket drive tool and has a suture-receivi... | 07/24/2001 |
| 6185896 | Screw threaded fastener and fastening system A screw threaded fastener (103) has an elongate shank (122) with a drilling tip (104) at one end and a head (123) at the other end. A screw thread extends along at least a part of the length of the shank (122). The trailing flank (116) of the thread subte... | 02/13/2001 |
| 6019559 | Fastener having spiral shaped collar portion An improved fastener comprising a head portion, a flange portion, a shank portion which extends through two aligned apertures formed in adjacent panels and a collar swaged on the shank portion. The shank portion includes a gripping portion having a plural... | 02/01/2000 |
| 5957646 | Enhanced strength screw-type masonry anchor An enhanced strength screw-type, self-tapping masonry anchor for fastening a fixture or other attachment to masonry in which a hole is drilled to receive the anchor. The anchor is provided with a shank having a root section surrounded by at least one heli... | 09/28/1999 |
| 5951560 | Wedge orthopedic screw An orthopedic interference screw for compression anchoring a bone graft in a bore formed in a bone mass. The interference screw includes a biocompatible body with a root. A screw thread is formed over substantially all of the root. The screw thread includ... | 09/14/1999 |
| 5947670 | Self-drilling fastener A self-drilling fastener includes an elongated shank region having first and second ends, a head at the first end and a drill point at the second end. Included in the shank region is a root having helical threads extending therefrom with a predetermined t... | 09/07/1999 |
| 5891146 | Wedge orthopedic screw An orthopedic interference screw for compression anchoring a bone graft in a bore formed in a bone mass. The interference screw includes a biocompatible body with a root. A screw thread is formed over substantially all of the root. The screw thread includ... | 04/06/1999 |
| 5788440 | Threaded adapter bushing A bushing adapted to be secured within a circular aperture of a structural channel support member has a head, and a shank portion having an external male machine thread. A centered bore having an internal machine thread penetrates the head and shank porti... | 08/04/1998 |
| 5735658 | Thread forming tool A tool having a profile for the forming or shaping of a complementary thread in and/or on a fastener which can be utilized with advantage as a bone screw or another osteosynthetic force transmitting member, instrument or accessory. The thread which is for... | 04/07/1998 |
| 5722808 | Threaded fastener system A fastener system capable of clamping a workpiece that provides for enhanced distribution of the internal forces that are generated in the components as a result of the assembly of the system. The fastener system includes an externally threaded member hav... | 03/03/1998 |
| 5704750 | Multiple use screw with tapered threads A threaded screw has a first segment adjacent the screw head (10) with nontapered sides for engaging metal automotive fastener clip nuts (30) and a second segment with tapered sides for engaging plastic bosses (24). The second segment is adjacent the firs... | 01/06/1998 |
| 5669746 | Fastener having spiral shaped collar portion An improved fastener comprising a head portion, a flange portion, a shank portion which extends through two aligned apertures formed in adjacent panels and a collar swaged on the shank portion. The shank portion includes a gripping portion having a plural... | 09/23/1997 |
| 5636956 | Fastener and screw means therefor A fastener is a screw having a threaded shaft, and a fastening strip or sheet having a raised portion provided with an aperture being preformed to have an at least partly helical threadform-defining edge shaped and dimensional to matingly receive the thre... | 06/10/1997 |
| 5544993 | Threaded fastener A fastener which can be utilized with advantage as a bone screw or another osteosynthetic force transmitting member, instrument or accessory has a thread with two flanks each having a first section adjacent the crest and a second section adjacent the root... | 08/13/1996 |
| 5531553 | Masonry fixing A masonry fixing device 1 comprises a steel shank 2 which in the form of the blank is right circular cylindrical form. A ridge-groove-ridge configuration extends helically along the lower portion 4 of shank 2 and comprises a pair of parallel opposed ridge... | 07/02/1996 |
| 5461209 | Stud bolt A stud which is automatically fed so as to welded stably and properly, has a large electric contact surface with the collet, facilitates clip attachment, and maintains the engagement firmly after the attachment of the clip. A stud 1 extends upwardly into ... | 10/24/1995 |
| 5437526 | Arrangement for anchoring a rod-shaped tension member of composite fiber material An anchoring arrangement for use in underground mining or foundation work or as a reinforcing element for concrete includes a rod-shaped tension member of composite fiber material which has, over at least an anchoring portion thereof, a helically extendin... | 08/01/1995 |
| 5304023 | Metal panel fastener A fastener for fastening a pair of metal panels comprises a head which has an annular recess at its underside. A threaded shank has a buttress thread which terminates in a self-driving tip. An sealant/adhesive coating is preapplied to the fastener. The co... | 04/19/1994 |
| 5190424 | Bolt for use with resin clips Disclosed is a stud bolt having nonsymmetrical screw threads projecting from the shank thereof, wherein each screw thread of the stud bolt has an inwardly concave curved flank and an outwardly convex curved flank. With this arrangement, the load required ... | 03/02/1993 |
| 5163523 | Screw thread structure for percussion drill driver sub and case A driver sub and a case for enclosing a piston chamber of a percussion drill are threadedly connected by respective identical male and female screw threads. Each of the identical male and female screw threads includes a root portion, the shape of which is... | 11/17/1992 |
| 5127784 | Fatigue-resistant buttress thread A fatigue resistant buttress thread. The thread has a load flank angle of approximately 30° plus or minus approximately 5° and a relief flank angle of approximately 46° plus or minus approximately 5°. The thread engaged depth is approximately 0.232 ti... | 07/07/1992 |
| 5060740 | Screw thread coupling A thread coupling comprises two interconnected screw threads. Each of the screw threads has a root portion shaped as a portion of an ellipse. With respect to one of the threads having such a shape, the major axis of the ellipse is longer than that of the ... | 10/29/1991 |
| 5056611 | Screw thread structure A screw thread structure includes a root portion, the shape of which is defined by portions of two axially overlapping ellipses interconnected by a flat.... | 10/15/1991 |
| 4907926 | Thread form and fastener system using the form A modified buttress thread has a root diameter equal to substantially Ýa;0.7 of the core diameter with a pitch substantially equal to 1/6 of the core diameter. The thread root extends parallel to the axis of the fastener as a surface and transitions i... | 03/13/1990 |
| 4854311 | Bone screw A bone screw for use with a connecting member for connecting a bone portion with the connecting member. The bone screw includes an elongate shank having a longitudinal central axis. A first externally threaded portion receives a nut for attaching the conn... | 08/08/1989 |
