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| Number | Title | Issue Date |
| 7270509 | Fastener assembly A fastener assembly includes a threaded bolt and a locking nut assembly. The threaded bolt includes at least one longitudinal groove. The locking nut assembly includes a nut adapted to threadingly engage the bolt, a locking ring adapted to engage the bolt and the nu... | 09/18/2007 |
| 7252470 | Wheel locking assembly A wheel locking assembly for preventing theft of wheels and tires. The wheel locking assembly includes a wheel rim assembly including a disc-shaped wheel rim having a first side and a second side, and also having an axle-receiving opening being centrally disposed th... | 08/07/2007 |
| 7246980 | Fixing member comprising an integrity control system The invention concerns a fastening member comprising a threaded part (150) and a head (100) with which the threaded part can be turned in order to tighten the fastening member in a corresponding element. The head (100) is formed of a plate (1... | 07/24/2007 |
| 7097404 | Auto-torque, tamper-proof screws A screw having a screw-threaded shank and a circular head, the head being provided with three radially extending screwdriver tip receiving portions defined between three first, off central integrally formed projections designed to become shaved-off the screw head by... | 08/29/2006 |
| 7014403 | Finish screw fastener A fastener including a head having a screw driver or wrench engagement feature. The fastener includes a threaded shank extending from the head. A plurality of voids or scores in the shank spaced from but near the head permit rotational torque on the head in one dire... | 03/21/2006 |
| 6786676 | Tarpaulin deployment device An improved spindle and tarpaulin combination to be used in devices to deploy and take up a tarpaulin. The device is comprised of a reinforced spindle and a tarpaulin adapted to be attached to the spindle, such that the tarpaulin may be wound and unwound upon the sp... | 09/07/2004 |
| 6082941 | Torque-limiting fastener A torque-limiting fastener in which a threaded member having a drivable head portion is rotationally mounted within a capsule containing a calibrated spring loading element which is adapted to be compressed in one direction of rotation and released in the... | 07/04/2000 |
| 6024522 | Security fastener and drive tool for driving both security fasteners and conventional fasteners A security fastener including a body having a circumferential periphery and an end wall, a curvilinear groove in the end wall, a plurality of circumferentially spaced depressions extending inwardly into said circumferential periphery from said end wall an... | 02/15/2000 |
| 5765980 | Loosening preventive screw A cross-recessed head screw has in its head a tool engagement recess including first releasing surfaces which are adapted to be engaged with generally flat front edges of an end of a cross-headed tip screwdriver and have the function of moving the screwdr... | 06/16/1998 |
| 5647712 | One directional socket-driven component A threaded fastener which is constructed to be turned in one direction by a square socket drive includes a threaded stem and an integral modified head arranged with four raised projections which are circumferentially spaced. Each of the four raised projec... | 07/15/1997 |
| 5598753 | Eagle wing tips tamper-proof fastener and driver tool An eagle wing tips tamper-proof fastener and driver tool with complementary driver head contact for operating the same. A conventional threaded shank is perpendicularly connected to a substantially flat head. The head comprises a plurality of recessed cha... | 02/04/1997 |
| 5449260 | Tamper-evident bolt The invention herein disclosed involves a "tamper-evident bolt". More specifically, the bolt has ratchet or splined teeth on the outer periphery of the bolt head which will accept a socket for tightening the bolt. In the center of the head of the bolt is ... | 09/12/1995 |
| 5340256 | Security nuts A security nut, which can be tightened on to a bolt but not slackened, has a body which is dome shaped and through which a threaded bore passes. The external dome-shaped surface of the body is provided with grooves which have diverging walls which can be ... | 08/23/1994 |
| 5188492 | Split ring clamping arrangement A router having a depth of cut adjustment mechanism including an adjustment ring which engages a screw thread on the motor housing and rotationally engages the router base. There is further provided an arrangement for preventing relative rotation between ... | 02/23/1993 |
| 5138986 | Internal combustion engine starting control to prevent unauthorized starting A novel machine with an internal combustion engine, and practical use-control means to prevent an unauthorized person from starting such engine, and anti-bypass means to prevent a knowledgeable prepared unauthorized person from defeating use-control means... | 08/18/1992 |
| 5062325 | Pipe plug and centering construction for centering ridged key in mating groove in pipe plug or nut A pipe plug which cannot be removed from a pipe with the same key with which it is installed, the pipe plug having a body with a plurality of arcuate grooves having inclined arcuate ramps leading from its face into its body and terminating at shoulders fo... | 11/05/1991 |
| 5033501 | Fire hydrant cap and actuating tool therefor A fire hydrant cap and actuating tool for use therewith provide enhanced security for fire hydrants and increased safety when using the tool. The cap is forged of 8620 carbon steel; is provided with an internal steel lock washer of cadmium plate steel, an... | 07/23/1991 |
| 4981383 | Device for screwing a writing instrument tip into a writing fluid reservoir Apparatus for screwing a writing instrument tip into a writing fluid reservoir in a writing instrument in which the connection from the reservoir to the tip, in order to supply the writing fluid to the tip, is made by the screwing action just prior to usi... | 01/01/1991 |
| 4878794 | Collated screw fasteners A series of drywall screws are nested together and individually seated with a special driving tool after separation from one another. Each screw is hollow and has interior and exterior screw threads. One end of the screw has a hollow flat head and the bod... | 11/07/1989 |
| 4786224 | Wheel lug nut cover A lug nut cover is provided having a breakage shroud for restricting access to the lug nut and a retaining cap for securing the shroud to the lug. The shroud includes an internal ledge having ratchet teeth thereon. The cap includes an exterior flange havi... | 11/22/1988 |
| 4694667 | Permanent padlock-chain assembly In order to avoid separation of a padlock and chain which are utilized together, an assembly including a pair of brackets is employed. The brackets are each formed of bent sheet metal stock with upstanding ears and outwardly extending arms which over-lie ... | 09/22/1987 |
| 4657459 | Vibration resistant fasteners A self-locking fastener having a bearing surface comprising a plurality of sets of serrations arranged to penetrate a workpiece such that, while a resistance to the loosening of the fastener from the workpiece is created, the marring of the workpiece surf... | 04/14/1987 |
| 4655656 | Fastening device for door or window frames A device for adjustably fastening a door or window frame or the like to a fixed element, including a screw-like device having threads which engage the fixed element and a threaded sleeve member, displaceably arranged on the screw-like device, which engage... | 04/07/1987 |
| 4602903 | Anti-theft safety nut An anti-theft nut for forward threading on a threaded member and having removal preventing means. The nut has a nut case with an axially extending skirt and two axially extending blind bores, and a bottom nut attached to the skirt to define and inner cavi... | 07/29/1986 |
| 4512697 | Torque limiting fastener A fastener is disclosed having an integral limiting configuration which is adjustable to provide a variable maximum torque transmitted from a threaded bolt to the mechanism being fastened. The torque transmission is controlled at its maximum by a friction... | 04/23/1985 |
| 4503880 | Fluid distribution lockout apparatus A lockout device for a consumer gas supply includes a swivel pipe having an intermediate angulated section having a swivel connector at one end and a threaded connection at the opposite end. The swivel pipe is connected to the gas meter. An expandable plu... | 03/12/1985 |
| 4447055 | Playground equipment with wooden timbers having internal fasteners Playground equipment having wooden timbers includes a plastic fastener with a metal threaded core flushly mounted in the wooden timbers for interconnecting the wooden timbers to associated members of the playground unit. The plastic fastener has one-way t... | 05/08/1984 |
| 4429599 | One way screwdriver A tamper proof screw head screwdriver blade utilizes a handle attached to an elongated cylindrical shaft. The distal end of the shaft is contoured so as to have a pair of diametrically opposed wedge-shaped portions removed defining two pairs of wall-like ... | 02/07/1984 |
| 4258596 | Tamper-resistant fastener A tamper-resistant fastener is disclosed, having a head which tends to prevent the removal of the fastener by conventional tools. The fastener head is provided with three sockets, at least one of which is eccentrically disposed with respect to the other t... | 03/31/1981 |
| 4223585 | Double-ended stud with combined driving and locking means An integral stud member having shank portions extending from either side of a radially extending flange. A first shank portion including thread convolutions with means to form mating internal threads in an associated workpiece. The surface of the flange o... | 09/23/1980 |
| 4125051 | Tamperproof fastener A threaded fastener with a low profile head designed to prohibit unauthorized removal. The upper surface of the head is configured to include a very short cylindrical boss, coaxial of the fastener and a plurality of ribs extending radially outwardly there... | 11/14/1978 |
