Yielding Patents (Class 404/10)
  • Patent number: 7156576
    Abstract: Molded ribs are provided for use in connection with traffic channeling devices, such as drums, which employ external ballasting collars, such as molded rings or truck tire rings. The ribs are disposed at spaced intervals near the bottom of the external wall of the drum, for improving contact between the drum wall and the internal diameter of the ballasting collar, in order to eliminate undesirable separation of the drum and collar during ordinary use, and to prevent inadvertent rotation of the drum relative to the collar.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: January 2, 2007
    Assignee: Traffix Devices, Inc.
    Inventors: Jack H. Kulp, David C. Gertz
  • Patent number: 7128496
    Abstract: An adaptable barrier system protects a site of value that is adjacent to a trafficable surface, from impact by a vehicle. The system includes traffic patterns to reduce speed, followed by a first impact element that causes a vehicle to become elevated from the trafficable surface. A bed having a deformable structure or material beyond the first impact element lowers the elevation of a vehicle that encounters the bed. A cover overlies the compressible material to allow passage of pedestrians and lightweight vehicles. An impact element line beyond the bed has sufficient height to impact a chassis of the vehicle having an elevation that is lowered by the bed, and prevent further progress of the vehicle. The combination of the first impact element, the bed and the impact elements line may be reproportioned with respect to each other to provide a barrier intended to suit a particular application.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: October 31, 2006
    Assignee: Rock Twelve, LLC
    Inventors: Robert M. Rogers, Scott Demel, Lissa Parrott, Vincent Lee, Vanessa Keith, Graeme Waitzkin
  • Patent number: 7112004
    Abstract: An energy absorbing terminal is described that is made up of a plurality of cells partially defined by cambered panels made of thermoplastic or another suitable material. The panels are supported upon rectangular frames. The cambered portion of the panels provides a predetermined point of flexure for each panel and, thus, allows for energy dissipation during a collision. The stiffness of the crash cushion may be varied by altering material thicknesses and diaphragm spacing. In operation, a vehicle colliding in an end-on manner with the upstream end of the energy absorbing terminal will cause each of the cambered panels to bend angularly at its point of flexure and, thus, cause the cells to collapse axially. The use of thermoplastic, such as polyethylene results in a reversible, self-restoring collapse for the terminal, meaning that the terminal is reusable after most collisions.
    Type: Grant
    Filed: October 18, 2004
    Date of Patent: September 26, 2006
    Assignee: The Texas A&M University System
    Inventors: Dean C. Alberson, D. Lance Bullard, Jr., Christopher J. Karpathy, John F. Carney, III
  • Patent number: 7111827
    Abstract: To reduce the danger of bodily harm to occupants of vehicles that leave a roadway, a guardrail system includes an energy-absorption system is provided. The energy-absorption system including a cutting mechanism positioned to cut a guardrail section upon impact by a vehicle to decelerate the vehicle.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: September 26, 2006
    Assignee: Kothmann Enterprises, Inc.
    Inventors: Dean L. Sicking, Brian G. Pfeifer
  • Patent number: 7101111
    Abstract: An energy absorbing system with one or more energy absorbing assemblies is provided to reduce or eliminate the severity of a collision between a moving motor vehicle and a roadside hazard. The energy absorbing system may be installed adjacent to a gore area and other relatively wide roadside hazards. One end of the system facing oncoming traffic is relatively narrow. The width at an opposite end of the system may be varied to accommodate relatively wide or large roadside hazards. A sled assembly may be provided with a cutter plate such that a collision by the motor vehicle with the sled assembly will result in the cutter plate tearing or ripping the energy absorbing element to dissipate energy from the motor vehicle collision.
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: September 5, 2006
    Assignee: Exodyne Technologies Inc.
    Inventor: James R. Albritton
  • Patent number: 7100903
    Abstract: An impact barrier system comprising a plurality of bow-shaped panels attached to a retaining wall in overlapping side-by-side relationship that, together with the configuration of the panels, provides a plurality of impact absorbing features that work together to absorb the impact of a vehicle and transfer the force of the impact across multiple panels. The panels are resilient and predisposed to assume their original configuration after the impact.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: September 5, 2006
    Inventor: Harold E. Wilson
  • Patent number: 7090429
    Abstract: A highway delineation marker fabricated of two thin, resilient, elongated panels, U-shaped in cross section, secured together open-face to open-face, capturing a foam core. The lower end of the rear panel is captured behind a tab on the front panel for ease of insertion and the front panel includes two or more outwardly projecting tabs for interaction with a mating insertion tool for placement of the delineator marker into a pilot hole.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: August 15, 2006
    Inventors: William D. Humphrey, Vernon Larson
  • Patent number: 7077599
    Abstract: A roadway marker has a pair of ramps, each inclining upward from a base toward the other. A slot is located between the ramps. On end of the slot is closed, while the other end of the slot has a pair of tabs that partially close the slot, leaving a gap between them. A flexible marker strip protrudes upward from the ramps and has a lower portion extending into the slot. The marker strip having a thickness less than the gap to enable the marker strip to be inserted into the slot from an end of the slot. The lower end of the marker is bent and extends into a lateral leg of the slot to prevent upward movement of the marker.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: July 18, 2006
    Inventor: Robert K. Hughes, Jr.
  • Patent number: 7065923
    Abstract: A method and apparatus for operating a security gate is disclosed which may comprise a drive mechanism arm having a first end and a second end, and including a security gate attachment member connected to the first end of the drive mechanism arm; a drive mechanism actuator operatively connected directly or indirectly to the drive mechanism arm and adapted to move the drive mechanism arm along a predefined path in relation to the actuator in response to operation of the actuator; and a release mechanism adapted to release the connection of the security gate attachment member to the first end of the drive mechanism arm in response to the application of a force to the security gate attachment member in a direction other than the force applied to the security gate attachment member by the drive mechanism arm in response to the operation of the actuator to move the security gate drive mechanism arm along the predefined path.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: June 27, 2006
    Assignee: The Chamberlain Group, Inc.
    Inventors: Walter Parsadayan, Wayne C. Hom
  • Patent number: 7056056
    Abstract: A collision safety device having a breakaway coupling. The collision safety device comprises first and second post segments. A first shear plate is attached to the first post segment and a second shear plate is attached to the second post segment. The first shear plate has a first contact surface and the second shear plate has a second contact surface opposite the first contact surface. The first and second shear plates are releasably attached by a breakaway coupling including a band. Friction between the shear plates and strength of the band are adjustable such that the upper post is released from the lower post when subjected to a pre-selected collision force.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: June 6, 2006
    Inventors: Kenneth E. Wiegand, Stuart E. Larsen
  • Patent number: 7052201
    Abstract: A safety bollard, post or stanchion to protect adjacent a vehicular area, each bollard, post or stanchion being so designed to provide a progressively increasing resistance to bending and/or deformation on impact by a vehicle, whereby the force of impact is progressively absorbed by the bollard, post or stanchion and deformation of the vehicle whereby the vehicle is progressively decelerated.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: May 30, 2006
    Assignee: Automotive Safety Engineering Pty Ltd
    Inventor: Gradimir Zivkovic
  • Patent number: 7037029
    Abstract: A crash cushion including a side portion extending in a longitudinal direction and having an outer surface defined at least in part by a plurality of convex cambered portions. At least one deflector skin has an inner surface, an outer surface, a leading edge and a trailing edge. The deflector skin is mounted to the outer surface of the side portion in an overlying relationship with at least one of the convex cambered portions.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: May 2, 2006
    Assignee: Energy Absorption Systems, Inc.
    Inventors: Michael J. Buehler, James B. Welch
  • Patent number: 7025527
    Abstract: A highway marker for implantation in a highway or roadway where a top surface of the marker is just above the roadway surface and is centered in a stripe that separates the lane or roadway from the lane or roadway shoulder. The highway marker includes an outer sleeve formed from a section of five inch steel pipe that is for installation in the road with its top edge level with the road surface and contains a steel core centered in the sleeve in rubber that extends to the inner surface of the outer sleeve, the bonded rubber tending to deflect downwardly and rebound when a force is applied onto the steel core.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: April 11, 2006
    Inventor: Lynn Mecham
  • Patent number: 7025016
    Abstract: An anchoring marker post comprising a hollow elongated member, the elongated member composed of a flexibly resilient polymer plastic and having a first end and a second end, integrally attached to the elongated member is a set of anchoring flaps, the anchoring flaps located proximate the second end of the elongated member, attaching each of the anchoring flaps to the elongated member is a flexible living hinge, the flexible living hinge allowing the anchoring flaps to be moveable from a first closed position to facilitate the handling and transportation of the marker post to a second open position to prevent the withdrawal of the elongated member from an embedded position.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: April 11, 2006
    Assignee: Rednet, Inc.
    Inventor: Scott D. Landes
  • Patent number: 7018130
    Abstract: A corrugated side panel for use with crash attenuators and guard rails is provided with a plurality of angular corrugations including a plurality of flat ridges and flat grooves connected together by flat slanted middle sections. A portion of the trailing edge of each ridge is bent in toward the succeeding ridge so that a vehicle reverse impacting the crash attenuator does not get snagged by the trailing edge of the panel, but is at least partially redirected toward the roadway. Support gussets are selectively provided to reinforce the side panel.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: March 28, 2006
    Assignee: SCI Products Inc.
    Inventors: Jeffery D. Smith, Randy L Warner, Kelly R. Strong
  • Patent number: 7014389
    Abstract: An articulated guard rail reflector assembly includes a standardized base adapted for mounting the corrugations of a metal guardrail or on top of a guard rail and a pair of interchangeable top reflector holding members, one being circular in outline and one being trapezoidal in outline to fit in the corrugation of a metal highway barrier. The base member and the reflective member are joined by a spring steel L-shape clip that snaps into place. The base and reflector holding members may be made of sheet or galvanized metal, aluminum, polycarbonate plastic, ABS plastic or the like. The L-shape member is made of spring steel and allows the reflector to be moved backwardly of its direction facing traffic by either brushing forces rubbing against the guardrail, or by the pressure of packed snow being pushed against the guardrail by a motor vehicle carrying a snowplow or the like. Preferred reflector material includes plastic lenses and/or reflective tape.
    Type: Grant
    Filed: January 30, 2004
    Date of Patent: March 21, 2006
    Assignee: Hallan Products, Ltd.
    Inventor: Allen D. Siblik
  • Patent number: 7011470
    Abstract: A retractable speed bump helps control the speed of a vehicle traveling through a special speed zone such as a school zone or a road construction site. A housing is either buried in the roadway or is placed into a ramp that seats on top of the roadway, the housing having a retractable canister therein, which canister extends above the housing in response to the speed of a vehicle as detected by a speed sensor. The greater the speed of the vehicle, the greater the level of extension of the canister. The canister may have tire shredding spikes or explosive charges therein.
    Type: Grant
    Filed: March 29, 2004
    Date of Patent: March 14, 2006
    Inventors: Orville Alan Breazeale, Gregory Mark Lee, Charles J. Cole
  • Patent number: 6979145
    Abstract: An improved driveway gutter having a flexible gutter mat bridging the trough in the gutter for improving driving over driveway gutters. The mat is made of flexible material such as heavy rubber. The mat is placed with its flat bottom bridging the gutter, and fastened down by bolts in recessed holes in the mat. Because the mat is flexible, when a car drives over the mat it is forced down to conform with the gutter, and the top of the mat smoothes out the gutter for the car. When the weight is removed the mat springs back into shape bridging the gutter, so that the passage of water is not impeded. The fastening holes are deep enough that the fasteners do not protrude above the surface of the mat when it is deformed by a tire crossing the mat.
    Type: Grant
    Filed: July 12, 2005
    Date of Patent: December 27, 2005
    Inventor: Michael Kozlowski
  • Patent number: 6978582
    Abstract: A one piece beam means used a post to support a longitudinal impact-resistant member, such as a guardrail along a highway. The one piece, stamped construction simplifies installation because fewer steps and parts are involved.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: December 27, 2005
    Inventor: Gwynn Alan Bernard
  • Patent number: 6971817
    Abstract: Aircraft arresting beds constructed of cellular concrete at ends of runways may be subject to damaging effects of jet blast phenomena. Arresting units resistant to such effects are described. A block of compressible material, such as cellular concrete, provides compressive failure characteristics suitable for arresting travel of an aircraft overrunning a runway. Relatively thin frangible material positioned above the block provides a stronger, more damage resistant surface, while still readily fracturing in an arresting incident. Intermediate material, such as a foam layer, positioned under the frangible material may be included to provide a protective cushioning effect by mitigating transmission of external phenomena forces to the block. A fastening configuration at least partially enclosing other portions of the arresting unit provides a stable unified composite, without destroying desired compressive failure characteristics of the unit.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: December 6, 2005
    Assignee: Engineered Arresting Systems Corporation
    Inventors: Glenn Allen, Richard D. Angley, John L. Gordon, Peter T. Mahal, Silvia C. Valentini
  • Patent number: 6969212
    Abstract: A self-aligning pivotable delineator pole preferably includes a first post, a second post, a first retention tube, a second retention tube, a first coupling member, a second coupling member and an extension spring. A first end of the extension spring is retained in the first retention tube. A second end of the extension spring is retained in the second retention tube. One end of the first post is preferably joined to the first retention tube with the first coupling member. The second post is preferably joined to the second retention tube with the second coupling member. The other end of the first post is inserted into the ground or retained in a weighted base. If a person or an object contacts the second post, the second post will pivot relative to the first post and return to its original position, after the contact ceases.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: November 29, 2005
    Inventors: Carolyn M. Richens, Stephen E. Richens
  • Patent number: 6962328
    Abstract: A safety system including cables and support posts is provided. The safety system may be used to prevent vehicles from impacting with an associated roadside hazard. The safety system will typically maintain engagement between associated cables and support posts for a longer period of time as the posts are bent during a vehicle impact.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: November 8, 2005
    Assignee: TRN Business Trust
    Inventor: Peter Bergendahl
  • Patent number: 6962245
    Abstract: Tunable pull-through energy attenuator and decelerator devices is disclosed which provide for variable force-time profiles, deceleration and kinetic energy attenuation of moving objects so as to prevent damage or injury to impacting objects, vehicles or persons. The device employs either consumable inelastic or reusable, viscoelastic deforming elements, such as tubes, rods, plates or strips, which absorb substantial amounts of energy through repeated inelastic or viscoelastic deformation when the deforming element is pulled-through a tunable array of rigid pins having a variety of configurations and settings. The disclosed devices provide for variable force-time profiles which control the cumulative deformation and thereby the amount of energy absorbed and rate of deceleration of impacting objects.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: November 8, 2005
    Assignee: Worcester Polytechnic Institute
    Inventors: Malcolm H. Ray, Chuck A. Plaxico
  • Patent number: 6955496
    Abstract: A reflective road marker (10, 48) to be mounted on a road surface to indicate the position of traffic control lines on that surface. The road marker has a base (14, 62) which can be secured to the road surface by adhesive. An resilient support (20, 50) is secured to the base and supports light reflectors (24, 68) at an acute angle to the road surface. The support allows the reflectors to be deflected resiliently towards the base in response to passage of a vehicle tyre over the road marker. To prevent damage to the reflectors means is provided to prevent ingress of solid particles between the reflector and the base. In the preferred embodiment, the support is provided by a hollow diaphragm of a resilient material.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: October 18, 2005
    Inventor: Shaun Burchell
  • Patent number: 6955495
    Abstract: A delimiter that can be arranged along the sides of a runway. The delimiter can be locked in an upright position for most normal operations. When the runway must be cleared of snow, an operator can lower the delimiters in place, either manually or by motor. After the runway has been cleared of snow, the delimiters can be raised again for use. Unlike the delimiters described above, these delimiters meet all aircraft regulation requirements. When collapsed, they do not protrude above the surface of the ground. The delimiters also have a shear mechanism that allows the raised portion of the delimiter to break off when struck. This shear mechanism protects aircraft by breaking away the upper portion of the delimiter.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: October 18, 2005
    Inventors: Calvin Datta, Jennifer Datta
  • Patent number: 6948880
    Abstract: A guardrail terminal having a number of vertical supporting members fix into the ground one after the other along the edge of the road. The guardrail terminal, in certain embodiments, has a curved or straight first transverse horizontal retaining member fixed to the vertical supporting members at a given height off the ground, and curves in the horizontal plane so as to extend gradually away from the edge of the road. The guardrail terminal further may include a curled second transverse horizontal retaining member, which projects from the terminal end of the first transverse horizontal retaining member, curves back in the horizontal plane towards the first transverse horizontal retaining member, and is fixed by its own terminal end to the start end or to an intermediate portion of the first transverse horizontal retaining member, so as to form, together with the first transverse horizontal retaining member, a substantially tear-shaped collapsible annular member.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: September 27, 2005
    Assignee: Metalmeccanica Fracasso S.p.A.
    Inventor: Luigi Cicinnati
  • Patent number: 6945731
    Abstract: A flag assembly includes an elongated and rectilinear shaft having opposed end portions situated adjacent a ground surface. The shaft includes a banner attached to one of the end portions having surface indicia imprinted thereon. A protective cover member is provided with a centrally registered countersunk bore situated therebelow. A frusto-conical spring member having axially opposed first and second end portions is conjoined to another end portion of the shaft and extends downwardly away therefrom along a vertical plane respectively. A bushing having a monolithically formed lower portion provided with a tapered diameter is inwardly offset from a diameter of the shaft. The bushing further has an axially registered upper portion operably conjoined to the spring member and cooperating with the shaft such that the spring member can be resiliently adapted between compressed and equilibrium positions to absorb vertically channeled impact forces encountered during installation procedures.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: September 20, 2005
    Inventor: Randy T. Vait
  • Patent number: 6942263
    Abstract: A truck mounted attenuator includes an interface structure comprising a pivot mount at a first location and a bearing surface at a second location vertically spaced from the first location. The pivot mount is adapted to be pivotally mounted to a pivotable truck component and the bearing surface is adapted to slidably engage an understructure of the truck. A backup structure is pivotally mounted to the interface structure at a third location and is engaged with the interface structure at a fourth location spaced from the third location. A crash cushion is supported at least in part by said backup structure. This crash cushion can be implemented as described in detail below to provide carefully tailored decelerating loads on the impacting vehicle. In other aspects, a truck outfitted with an impact attenuator and a method for mounting a truck mounted attenuator on a truck are also provided.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: September 13, 2005
    Assignee: Energy Absorption Systems, Inc.
    Inventors: James B. Welch, Doug E. Wilkinson
  • Patent number: 6932537
    Abstract: A modular energy absorbing soft wall system consisting of a plurality of partially overlapping interlocking panel structures slidably mounted on anchors on the side surface of an elongated concrete roadway barrier or median. Each panel consists of a flexible core layer sandwiched between an front and rear high density plastic layer. The core layer consists of a plurality of vertically extending air chambers. An elongated top piece with a flat bottom and an arched top is secured to the top portion of the core layer. The bottom portion of the system rests upon intermittent supports which extend to the road surface. During a vehicular impact energy is absorbed when the plastic layers deform, the chambers collapse, and the trapped air in the chambers escape out apertures in the inner plastic layer and through the bottom of the rubber layer.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: August 23, 2005
    Inventor: David L. Witcher
  • Patent number: 6926461
    Abstract: A high-impact, energy-absorbing vehicle barrier system generally includes a substantially rigid outer containment wall coupled via cable restraint assemblies with an energy-absorbing inner impact wall, and energy-absorbing cartridges strategically positioned between the impact wall and containment wall. The impact wall is constructed of a number of rectangular tubes coupled with one another to presents a substantially smooth, uniform surface to passing vehicles. The energy-absorbing cartridges generally consist of a number of foam sheets which compress and crush between the containment wall and impact wall to absorb energy from an errant vehicle striking the face of the impact wall, while the deflection and deformation of the impact wall tubes dissipates additional energy to reduce peak decelerations and mitigate the severity of high-energy vehicular impacts.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: August 9, 2005
    Assignee: Board of Regents of University of Nebraska
    Inventors: Ronald K. Faller, Dean L. Sicking, John R. Rohde, John D. Reid, Eric A. Keller, Robert W. Bielenberg, James C. Holloway, Kenneth H. Addink, Karla A. Polivka
  • Patent number: 6921228
    Abstract: A deformable panel member is provided for absorbing the energy of a moving object impacting the panel member. The panel member is adapted to be connected to a rigid member and has a front wall, a rear wall and two side walls extending between and interconnecting the front and rear walls. A support member in panel member extends between and interconnects at least two of the walls. The side walls are adapted to be angled relative to the rigid member in a direction of movement of the object when the panel member is mounted to the rigid member. An impact on the panel member will tend to deform the panel member toward the rigid member in the direction of movement of the object. This deformation allows the panel member to absorb the energy of the object for decelerating and redirecting the object subsequent to impact. An energy absorbing barrier is also provided comprising a plurality of the panel members mounted at spaced intervals along the rigid member.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: July 26, 2005
    Inventors: Tim Lee Williams, Bret A. Conway
  • Patent number: 6905283
    Abstract: An energy absorbing safety barrier system comprising a plurality of plates and a plurality of fins affixed to the plates. The plates are affixed to a stationary object, such as a retaining wall on a motor racing track, via mechanical fasteners. The fins are equidistantly spaced from adjacent fins and set at a specified angle in relation to the normal direction of vehicle traffic. The specified angle of the fins optimizes the dissipation of impact energy through the fin, the energy displacing adjacent fins into one another and further dissipating through friction and energy required to displace the fins.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: June 14, 2005
    Inventor: David C. Salyer, Sr.
  • Patent number: 6902150
    Abstract: A guardrail support post includes a continuous structural member having a top edge, a bottom edge, and a generally uniform cross section from the top edge to the bottom edge. The structural member includes first and second generally parallel flanges, and a web forming a coupling between, and extending generally perpendicular to the first and second flanges. The structural member includes a lower portion for installing below grade adjacent a roadway, and an upper portion configured to be coupled with a guardrail beam. A mid portion of the structural member is disposed between the upper portion and the lower portion. In accordance with a particular embodiment of the present invention, the first and second flanges include first and second cutouts, respectively, that occur within the mid portion. The cutouts are operable to weaken the structural member about an axis generally perpendicular to the flanges without substantially weakening the structural member about an axis generally parallel to the flanges.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: June 7, 2005
    Assignee: The Texas A&M University System
    Inventors: Dean C. Alberson, D. Lance Bullard, Jr., C. Eugene Buth, Roger P. Bligh
  • Patent number: 6890122
    Abstract: A highway marker device is provided for marking the location of an object, such as a culvert, located adjacent to a highway. The marker device is comprised of a coil spring having a first end and a second end, wherein the coil spring is comprised of a plurality of windings around a spring axis. Further, a marker post is connected with the first end of the coil spring, wherein the marker post has a post axis and wherein the post axis is substantially perpendicular to the spring axis. Finally, the marker device is comprised of a mounting mechanism for connecting the device with the object such that the coil spring is substantially restrained from bending about the spring axis.
    Type: Grant
    Filed: November 28, 2003
    Date of Patent: May 10, 2005
    Assignee: Shamrock Valley Enterprises Ltd.
    Inventor: Murry R. Nielsen
  • Patent number: 6877929
    Abstract: A speed hump device for discouraging vehicles form exceeding a designed threshold speed is disclosed. The speed hump device mainly comprises: a housing device, whose figure is like a box, having a housing room therein and a opening thereon; a hump device with a hump member and a arc-shaped member pivoted on the housing device by a first pivot, the hump member can be rotated in and out the housing room from the opening about the first pivot; a transmission device including a gear set, a transmitting mechanism and a abutment member, wherein the arc-shaped member is engaged with one gear of the gear set; a rebound device used to push the hump member out the housing device when no extra force presses on the hump member. When a car passing through the speed hump device with a slow speed, e.g.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: April 12, 2005
    Inventor: Chih-Cheng Yang
  • Patent number: 6863467
    Abstract: A crash cushion comprising a resilient cylinder having a substantially vertical longitudinal axis and an outer surface at least a portion of which is adapted to be exposed in or to a roadway. A deflector skin has a curved contour shaped to mate with the outer surface of the cylinder. The deflector skin is mounted on the outer surface over at least a portion of the portion of the outer surface that is adapted to be exposed to the roadway. A crash cushion system includes an array of cylinders and at least one deflector skin. In another aspect, a plurality of cylinders, at least some of which define a side of the array, each have an outermost vertical tangent, the combination of which defines a vertical plane. One or more deflector skins each including a leading edge and a trailing edge are mounted to corresponding ones of the cylinders forwardly of the tangent.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: March 8, 2005
    Assignee: Energy Absorption Systems, Inc.
    Inventors: Michael J. Buehler, James B. Welch
  • Patent number: 6848856
    Abstract: A pylon or barrier arrangement which is recessed into the ground or other surface and includes a post-like pylon which is movable between an extended position for control of vehicular or pedestrian traffic, and a retracted position beneath the ground. Movement of the pylon is achieved by a linear-type drive mechanism which acts as a clutch by decoupling from an upright and rotatable smooth drive shaft during abrupt downward driving of the pylon to avoid damage to the internal components of the arrangement. A sealing arrangement is provided for preventing the entry of debris into the interior of the pylon arrangement, and a heating unit is provided for preventing seizure of the arrangement during harsh weather conditions.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: February 1, 2005
    Assignee: National Sign & Signal Co.
    Inventor: Dwight David Johnson
  • Patent number: 6835024
    Abstract: An inertial barrier system comprises inertial barriers formed of two modules, each of them being differently sized and being adapted to stack one upon the other. An interlocking geometry on each of the mating ends of modules assists in obtaining a secure stacking arrangement. One of the two modules functions as a container, facing upwardly so that its volumetric capacity is available for filling by a particulate ballasting material. The lower module functions only as a pedestal for the support of the upper module. The upper module is advantageously fillable to different predetermined levels, so that the apparatus, comprising the joined lower and upper modules, is capable of functioning as differently weighted barrier systems.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: December 28, 2004
    Assignee: Traffix Devices, Inc.
    Inventor: David C. Gertz
  • Patent number: 6817805
    Abstract: A traffic channelizer device includes a deformable hollow plastic drum that may be ballasted by a drop over ballasting collar or by a base having an upper portion that may be releasably retained within the open bottom of the drum by a plurality of circumferentially spaced radially inwardly extending locking fingers adjacent the bottom edge of the drum that releasably engage a groove in the upper portion of the base. An intermittent stacking rim may be provided at the top of the drum to prevent overstacking of a plurality of such drums. Also the intermittent stacking rim may be used to prevent rotation of a portable sign assembly relative to the drum and keep the portable sign assembly from inadvertently sliding up off the drum top.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: November 16, 2004
    Assignee: Plastic Safety Systems, Inc.
    Inventors: Charles M. Mettler, Gregory H. Brown
  • Patent number: 6813860
    Abstract: A railroad crossing gate is repaired by lowering the crossing gate mechanism with a lever. The end of the lever can contain a conical opening mating with the conical pivot pin on the gate mechanism.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: November 9, 2004
    Inventors: Wayne Board Burnette, Charles Glenn Perkins
  • Patent number: 6790021
    Abstract: An apparatus for repairing or refurbishing thermoplastic drums. A damaged drum, or at least a damaged portion thereof, is heated until it reaches a softened state and is then drawn over a template, or mold, having the substantially the same shape and size of an undamaged drum. The drum is allowed to cool sufficiently to return to its hardened state, whereby it substantially assumes the shape of the template. The refurbished drum is then removed from the template and is essentially ready to be used again.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: September 14, 2004
    Assignee: Dowling & Son, Inc.
    Inventors: Virgil E. Dowling, Ray P. Richard, Samuel G. Dowling, Johnny M. Seago
  • Patent number: 6773201
    Abstract: A modular energy absorbing soft wall system consisting of a plurality of partially overlapping interlocking panel structures slidably mounted on anchors on the side surface of an elongated concrete roadway barrier or median. Each panel consists of a flexible core layer sandwiched between an front and rear high density plastic layer. The core layer consists of a plurality of vertically extending air chambers. An elongated top piece with a flat bottom and an arched top is secured to the top portion of the core layer. The bottom portion of the system rests upon intermittent supports which extend to the road surface. During a vehicular impact energy is absorbed when the plastic layers deform, the chambers collapse, and the trapped air in the chambers escapes out apertures in the inner plastic layer and through the bottom of the rubber layer.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: August 10, 2004
    Assignee: Safety Systems, Inc.
    Inventor: David L. Witcher
  • Patent number: 6769833
    Abstract: A vehicular barrier post includes an upper tubular portion and a lower tubular stand-off. The upper portion is joined to a rocking base having a tubular bottom portion telescopically received in the stand-off. The upper end of a tension spring is secured to the upper body portion by a pin. The lower end of the spring is attached to a tension member, such as a chain, which passes through the stand-off so as to be received in a hole in a suitable external support. The chain is pulled past the external support and when the spring is appropriately tensioned, a locking pin is passed through the chain, preventing its reverse travel through the external support. The upper body portion is allowed to freely rock about the stand-off.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: August 3, 2004
    Assignee: Dicke Tool Company
    Inventors: Grant D. Dicke, James Kokenes
  • Publication number: 20040141808
    Abstract: Aircraft arresting beds constructed of cellular concrete at ends of runways may be subject to damaging effects of jet blast phenomena. Arresting units resistant to such effects are described. A block of compressible material, such as cellular concrete, provides compressive failure characteristics suitable for arresting travel of an aircraft overrunning a runway. Relatively thin frangible material positioned above the block provides a stronger, more damage resistant surface, while still readily fracturing in an arresting incident. Intermediate material, such as a foam layer, positioned under the frangible material may be included to provide a protective cushioning effect by mitigating transmission of external phenomena forces to the block. A fastening configuration at least partially enclosing other portions of the arresting unit provides a stable unified composite, without destroying desired compressive failure characteristics of the unit.
    Type: Application
    Filed: January 9, 2004
    Publication date: July 22, 2004
    Inventors: Glenn Allen, Richard D. Angley, John L. Gordon, Peter T. Mahal, Silvia C. Valentini
  • Patent number: 6761000
    Abstract: An infoboard having at least one board part intended for an imprint, the infoboard comprising a frame carrying the at least one board part, the frame near an underside being firmly connected with the base, which base has such a weight that the infoboard is only movable by means of a lifting crane.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: July 13, 2004
    Assignee: Bordbusters B.V. i.o.
    Inventors: Eric Cornelis Johannes Hendrikus Heijting, Jan Kemperman, Alexander Richardus Maria Hubers, Theodorus Hermanus Klaassen
  • Publication number: 20040076469
    Abstract: A flexible parking post is provided with an aluminum base, a flexible support and a rigid square tube which are mechanically fastened together, thus resulting in a durable device that may be used to easily display signs in parking lots or any other location. It can also be used to act as a barrier at the end of a parking space.
    Type: Application
    Filed: August 11, 2003
    Publication date: April 22, 2004
    Inventor: Sylvain Audet
  • Patent number: 6719484
    Abstract: A marker support for use on a ground surface utilizing a base member having a flexible body. The base member includes a first surface with a plurality of flaps which extend outwardly from the same. The second surface is intended to contact the ground. An upright member is positioned to extend outwardly from the first surface and includes an area for accommodating the plurality of flaps. The plurality of flaps are linked to the base member by an element located within the recess.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: April 13, 2004
    Inventor: Robert F. Johnson
  • Patent number: 6715735
    Abstract: A guardrail extruder terminal includes a rail feeder chute associated with a downstream end of the guardrail extruder terminal. The terminal also includes an impact portion associated with an upstream end thereof. The impact portion is coupled to the upstream end of the rail feeder chute and includes an impact plate positioned to face oncoming traffic, a first side member coupled to the impact plate and positioned on a roadway side of the guardrail extruder terminal, and a second side member coupled to the impact plate and positioned opposite the first side member. The impact portion may include a top plate and a bottom plate, each being coupled between the first and second side members. The top and bottom plates each have a traffic side edge positioned to face a roadway that is approximately flush with a traffic side of the rail feeder chute.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: April 6, 2004
    Assignee: The Texas A&M University System
    Inventors: Roger Bligh, Steve Brown, Eugene Buth, Hayes E. Ross
  • Patent number: 6702513
    Abstract: An impact barrier provides an impact absorbing wall surface for racecar tracks. The present invention comprises a car-contacting panel having a top edge and a bottom edge. The steel wall bottom edge is disposed in a groove at the periphery of a roadway and a bladder contacts the steel wall. In the case of a car hitting the impact barrier the bladder would deflate and absorb some of the force of the impact.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: March 9, 2004
    Inventor: James E. Raupach
  • Patent number: RE39170
    Abstract: A security device (2) is described for protection access to and from a parking space by being suitable for secure mounting to the entrance/exit of the parking space at ground level comprising a barrier or sign (9) capable of movement between a raised position for preventing movement of a vehicle past the barrier (9) and a lowered position permitting the vehicle to be driven over the device (2), and arming pedal (4) which is depressed when the vehicle is driven over the device (2) to energize a driving means in the form of a torsion spring (78) which is connected via a control means including a cam (40) having two cam lobes (42,44) for effecting movement of a bar (60), to the barrier (9) by a suitable connection means, such as for example a slotted wheel (84) and pulley arrangement, so that operation of the control means causes lower or raising of the barrier.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: July 11, 2006
    Inventors: Mark Harrison Wagner, David Stratton