Patents Represented by Attorney David L. Kuhn
  • Patent number: 6076580
    Abstract: Disclosed is a pressurizable inner multi chambered tube for a tire having resilient radial walls in the body sealingly the chambers from one another. A ring shaped manifold on the tube communicates to the chambers by a check valve at each chamber, the check valves permitting fluid flow from the manifold to the chambers but preventing flow in the reverse direction. A valveless fluid passing fixture on the manifold permits the manifold to be connected to a source of pressurized air. If one chamber of the tube looses pressure, the remaining tubes will expand in an angular, circumferential direction and slide on the manifold so as to take up space formerly occupied by the one, depressurized chamber. The check valves of the remaining chambers will be released from engagement as the remaining chambers slide on the manifold.
    Type: Grant
    Filed: August 10, 1993
    Date of Patent: June 20, 2000
    Inventor: Mohammad S. Mazhar
  • Patent number: 6073953
    Abstract: An arrangement of a track laying combat vehicle towing a trailer utilizes a curved rail affixed to the aft end of the combat vehicle and generally tered about a vertical axis passing near the volumetric center of the combat vehicle. The hitch connection between the combat vehicle and the trailer includes a wheeled carriage that rides on the rail. Because of the rail and carriage, the outward swing of the combat vehicle aft end, which is in the opposite direction from the combat vehicle's turn direction, do not appreciably affect the trailer.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: June 13, 2000
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Donald H. Kendall
  • Patent number: 6053655
    Abstract: A fastener comprises a nut surrounding a collar that in turn surrounds a t, the nut and collar holding a bracket element against a mounting surface. The collar fits closely but slidably within the nut. Of the nut or collar, one has a boss that rides upon a cam surface of the other, so that a camming relation exists between the nut and collar. Turning the nut relative to the collar will thus squeeze the collar into an interference fit with the post so that the fastener attains a locking configuration. A groove adjacent the cam surface accepts the projection and retains it such that the fastener maintains its locking condition. A predetermined torque is needed to rotate the projection to the groove, whereby the fastener is a torque controlled fastener.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: April 25, 2000
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Mohammad S. Mazhar
  • Patent number: 6014099
    Abstract: A method of analyzing the radar cross section of a target vehicle determines the contributions to total radar cross section of various vehicle design details. The method includes obtaining ISAR images of the vehicle with a radar at a known position relative to the vehicle. A visible three-dimensional set of images of the vehicle is created. The visible images have the same point of view as the ISAR images. Each visible image is matched by one or more corresponding ISAR images in terms of distance from the target and angular position of the target relative to the vehicle's axis of rotation. The corresponding ISAR images are used to paint the visible images so as to produce one or more rendered composite images of the vehicle. A relation is then found between chosen vehicle details and bright zones in the composite image.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: January 11, 2000
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: John G. Bennett, Jack C. Jones
  • Patent number: 6003479
    Abstract: A piston for a high performance engine has a crown and a skirt integrally formed with the crown. A step is defined about the crown and an annular channel is machined in the step. A ring belt facially encircling the crown sealingly covers the annular channel so as to form an enclosed passageway where the coolant circulates. The piston has passages by which coolant under pressure is sent to the crown. The crown has a coolant entry duct communicating the passages to the annular channel and has a coolant exit duct communicating the annular channel with a cavity in the skirt.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: December 21, 1999
    Inventor: Mark M. Evans
  • Patent number: 5982422
    Abstract: Disclosed is a method to image events with a camera having a focal plane ay of sensors on a charge coupled device whose parallel vertical registers clock signal charges to a horizontal register. The method includes sending a first clock signal to first gates on vertical register zones proximal to the sensors, and sending a second clock signal to second gates on distal vertical register zones remote from the sensors. A first transfer pulse on the first clock signal causes first signal charges in the sensors to transfer to the proximal zones, and then the first signal charges dissipate into the substrate of the charge coupled device. A second transfer pulse of the first clock signal occurs at a predetermined interval after the first transfer pulse and second signal charges transfer to the proximal zone. The second signal charges are clocked off the charge coupled device to become part of a video signal.
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: November 9, 1999
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Laurence Flath, Eustace L. Dereniak, John P. Garcia, Steven M. Shepard
  • Patent number: 5957495
    Abstract: A vehicle exhaust orientation assembly directs an extremely hot, forceful haust gas flow from a tank or other vehicle that is towing a trailer or the like. The assembly has a transition shroud affixed to the exterior of the vehicle over its exhaust portal. A drum is rotatably connected to the shroud by rollers on the drum which engage a track on the shroud. Several anchoring structures are mounted on the shroud about the drum. The structures can hold the drum in one of several rotational positions of the drum on the shroud. Flow directing fins in the drum are pivoted by a linkage which can engage a tab on the drum so as to lock the fins in a selected pivot position. Rotational force is imparted to the drum and fins by flanges obliquely attached to the fins so that the fins are spun by the exhaust flow from the tank.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: September 28, 1999
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: John G. Korpi
  • Patent number: 5953156
    Abstract: A method to create a holographic projection adjusts both for relatively sl and relatively large head movements of the human viewer. Basically, the method includes sending sequences of images on an optical path from a projector to an eyebox array, the images in the sequences being views of the object from different angles. In the method's first step, the sequences of images are sent to a quasi-cylindrical mirror having two or more arcuate zones. Each zone corresponds to a particular range of viewer head positions and to a particular sequence of images, and each image reflects from a different, characteristic location in its associated zone. Once the images reflect from the quasi-cylindrical mirror, they pass through an HOE in the optical path to the eyebox array. Any given sequence of images is sufficient for an eyebox array whose width accommodates relatively small head, motions of the viewer.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: September 14, 1999
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Paul L. Muench
  • Patent number: 5949480
    Abstract: A method for obtaining spectral radiation data for points in a field of view utilizes a broad band variable filter to produce different intensity distributions on a photocell array. The array is in the focal plane of a camera and photocell locations correspond to points in the field of view. The variable filter has a sequence of optical train elements comprised of a first linear polarizer, a body of optically active material, a retarder and a second linear polarizer. A series of radiance measurements are taken at each photocell of the array and at least one of the optical train components is repositioned between measurements. For each photocell, a collection of photocell values is stored in a computer memory and is converted to a system of linear equations. Intensities for spectral components of light incident thereon are derived for each photocell. The method can be used to create a two-dimensional intensity map for the pixel array for each wavelength measured.
    Type: Grant
    Filed: March 3, 1997
    Date of Patent: September 7, 1999
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Grant R. Gerhart, Roy M. Matchko
  • Patent number: 5933955
    Abstract: A method of making a robust sprocket for a tracked combat vehicle includes orming flat steel plates from stock metallurgically dissimilar to and harder than that of the track shoes, the thickness of the plates being at least 0.72 times the axial width of track shoe pockets engaging teeth of the sprocket. The sprocket's teeth are formed by water jet machining, so that the metallurgy of the sprocket and the sprocket's flatness are unaffected by the tooth formation process, and so that the bearing surfaces of the teeth are smooth. After tooth formation, selected zones of the teeth are then hardened.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: August 10, 1999
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Bruce W. Barnhart
  • Patent number: 5916022
    Abstract: A defroster assembly uses heat from an engine's exhaust to heat the exterior of a windshield and the wipers thereon. The assembly comprises an air intake mechanism shared with the engine's air filter. The air intake mechanism leads to air ducts spaced from the engine block. Nodes in the air ducts encircle exhaust outlet pipes leading from the engine so that heat of the engine exhaust is transferred to air in the ducts. The assembly includes a vent subassembly for directing a stream of air in a laminar flow along the windshield. A fan of the assembly draws air from the ducts and forces it through the vent subassembly.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: June 29, 1999
    Inventor: Chic H. Lam
  • Patent number: 5899432
    Abstract: An adjustable test stand for holding ballistic samples during testing, the est stand having trusses carrying specimen holding members the trusses having curved arms which cooperate with the specimen holders to hold the specimens at various angles of incidence relative to the vertical to allow testing over a variety of incident angles.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: May 4, 1999
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Paul A. Petrovich, Richard J. Line
  • Patent number: 5865579
    Abstract: An adaptor is provided for a vehicle load bed having stake pockets along lateral edges. The adaptor allows pallets having indented peripheries to roll over the bed and to be locked in place on the bed. The adaptor has a base lying on the bed and guides in the form of upright walls disposed along lateral edges of the base. The guides keep the pallet on the bed as the pallet rides along the bed. Stakes on the bottom of the base are locked into the pockets to retain the adaptor to the bed. Extending from the walls are lips disposed over the pallet so as to limit or eliminate the pallet's vertical travel. The pallets ride on elongate rollers journalled between roller supports. The supports are fixed on the base parallel to the walls. Apertures of the same shape are defined both in the lips and the base and are aligned with one another. To fix the pallets to the adaptor, locking members are passed through the lip apertures, fit with indents of the pallets and passed through the base apertures.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: February 2, 1999
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: James D. Thomas
  • Patent number: 5857730
    Abstract: A low visibility interior armor construction for a door of an automotive icle is removably installed in the vehicle without structural change to the vehicle. The construction has a door panel armor component facing an inboard side of the door and a compressible pad between the inboard side of the door and the armor component. The armor component has hooks by which it hangs on the door. The armor component is tightened to the door by tensionable straps connected between the door and the armor component. The construction also has a plate of window armor alongside the door's window frame and a transparent frame forms a channel about a periphery of the plate. The frame is comprised of continuous polygonal bands forming side walls of the channel. Beds of the channel are recessed between the polygonal bands such that the transparent frame defines a continuous surface facing outboard of the vehicle. A transparent flange connects the door armor component to the transparent frame.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: January 12, 1999
    Assignee: United Stated of America as represented by the Secretary of the Army
    Inventors: John G. Korpi, Paul A. Petrovich, John J. Schmitz, Jack G. Rodgers, Kyle J. Nebel
  • Patent number: 5845922
    Abstract: A tow bar connecting a towed vehicle a towing vehicle has a shaft forking to tines whose hooks to engage the axle or undercarriage of the towed vehicle. A cradle or bracket slidable on the shaft engages the frame, bumper or other part of the towed vehicle. An arm is pivoted to the shaft by the arm's disk-like termini, which rotatingly sandwich the shaft's disk-like terminus. The arm's termini have satellite apertures which register with complementary satellite apertures in the shaft's terminus. Registering of the respective satellite apertures occurs at selected relative angular portions of the arm and shaft. Pins through the registered satellite apertures lock the arm and shaft in a given relative angular position. A jack raises the shaft once the tow bar is on the towed vehicle. The tow bar includes an eye or the like for attaching the tow bar to the hitch of the towing vehicle.
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: December 8, 1998
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Joseph G. Warner
  • Patent number: 5829935
    Abstract: A fastener assembly connects two layers of different hardness in a panel. e assembly has a screw and has a mechanism for boring through the softer layer comprised of a collar of material softer than the material of the screw. The screw is tapped into the collar and has a bit for boring through the harder layer of the panel. The screw's head fits into the collar so that the screw and collar can be countersunk together into the softer layer of the panel. The collar has a lead end having a leading cutting edge for drilling into the softer layer of the panel. The collar also has a trailing end having a frustoconical skirt on which is located a trailing cutting edge. The torque to rotate the screw in the collar is greater than a torque to rotate the collar in the softer layer of the panel. But the torque to rotate the screw in the collar is less than the torque to rotate the screw in the harder layer of the panel.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: November 3, 1998
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Donald H. Kendall
  • Patent number: 5784738
    Abstract: A hinge connects the webbing of a first bridge span to the webbing of a second bridge span. The hinge has male hinge plates on opposite sides of the first span's webbing and has female hinge plates on opposite sides of the second span's webbing. A shaft passing through the male hinge plates and first span's webbing is threaded on the ends but is smooth between the ends. Pockets at outer surfaces of the male plates surround the threaded ends and accept torque limiting nuts engaging the shaft. The nuts have heads, recess bodies and frangible necks connecting the heads to the bodies. No part of the bodies extends past the outer surfaces of the male plates. When the nuts are driven onto the shafts at a given torque, the necks break and the heads twist off. Then any remaining parts of the necks are removed. The male hinge plate can then be rotatably mounted adjacently between the female hinge plates.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: July 28, 1998
    Inventor: Gregory J. Updike
  • Patent number: 5786542
    Abstract: A system for clearing anti-personnel mines includes a vehicle, a blast shd on the front of the vehicle, and arms pivoted to the blast shield. A roller wheel subassembly is connected to the arms by cables or chains. Cross members fastened diagonally between the arms minimize side to side swing of the arms on the blast shield while allowing the arms to swing up and down relative to each other. The vehicle has a boom for lifting the arms and roller wheel subassembly. The arms connect to the boom by another chain or cable that slides through an eye on the boom so that the chain or cable accommodates relative vertical swing of the arms. The roller wheel subassembly has an axle and roller wheels on the axle, the inner diameter of the roller wheels being greater than the axle's diameter. Annular spacers on the axle alternate with the wheels, the spacer diameters being larger than the wheels' inner diameters but smaller than the wheels' outer diameters.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: July 28, 1998
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Paul A. Petrovich, John J. Schimtz, Jack G. Rodgers, Israel M. Grinwald
  • Patent number: 5782490
    Abstract: A flat bed off-road trailer has a rigid planar frame supporting the bed. frame has transverse members at the forward and rear edges of the bed, and has longitudinal members at lateral edges of the bed. A rigid undercarriage fixed to the trailer's axle is hinged to the frame via journal connections between forward outboard zones of the frame and forward outboard zones of the undercarriage. The trailer has springs for absorbing road shocks, the springs being located between rear outboard zones of the frame and rear outboard zones of the undercarriage. The trailer has a tiltable tractive subassembly which comprises walking beams journalled to the axle, wheels mounted at either end of the walking beams, a band wrapped around the wheels and structure to limit tilting of the subassembly.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: July 21, 1998
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Donald H. Kendall, Kenneth W. Kendall
  • Patent number: 5778506
    Abstract: A method to retrofit a vehicle panel with a ballistic enhancement mat sta by providing a continuous batt of fibrous material. The batt is impregnated with a matrix of material that is, or can be made to be, deformable and then hardened. The batt is cut into mats shaped in an outline of the panel. An individual mat is placed on the panel and conformed to the topography of the panel to create a surface-to-surface interface between the mat and the panel. The mat and panel are fixed together at points all over the interface via an adhesive, a hook-and-loop layer, threaded fasteners or any other suitable mechanical fastening mechanism. The matrix is then hardened, whereby the mat becomes an integral reinforcement mechanism for the panel. The matrix material can be resoftened to facilitate removal of the mat if the mat needs replacement.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: July 14, 1998
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Rene G. Gonzalez