Abstract: A correlation optical time domain reflectometer (OTDR) system embeds an OTDR signal in a digital data signal that is to be converted into an optical signal and transmitted across an optical fiber to a remote receiver. In particular, the digital data signal is amplitude modulated with the OTDR signal, which is based on a pseudo noise (PN) sequence, such as an M-sequence. The amplitude modulation is relatively small, for example, less than about 10% of the digital data signal's peak amplitude in an effort to limit the OTDR signal's effect on communication performance. A sequence recovery element receives reflections from the optical fiber and converts the reflections to digital samples. Each digital sample from the sequence recovery element is correlated by correlators that respectively correspond to delays and, hence, locations along the optical fiber, and accumulators accumulate the correlation values from the correlators.
May 20, 2010
Date of Patent:
December 10, 2013
Michael D. Turner, Leif J. Sandstrom, John Gordon Brooks, Kevin W. Schneider, Daniel M. Joffe
Abstract: This invention is directed to a bow end used for sliding bow covering systems which utilizes a solid trolley rail or trolley rail cables or cable or tubular track, trolley wheels and a trolley base having a bow support. The trolley rails or cables are attached to each side of any open top unit or the track is attached along the side. The trolley bow end rides on the trolley rail or in the track without touching the trailer. The important difference in this concept is that the roller wheels are located substantially below the horizontal line of the top of the trailer unit, this allows for side delivery of the contents of the trailer without allowing the contents to effect the trailer trolley rails or cable. Also an extension for storing the bows and tarp in the open position extends out either the front or back end, thus not interfering with the open top of the dump unit. The unit is designed for use with any open to dump box.
Abstract: A high lift farm dump box particularly constructed to produce a stable unit when the box supporting sections are in extended position by providing a stabilizing cross bar which not only supports the dumping cylinders for the box but also provides a stabilizing connection between the lower ends of the upper strut sections and the upper ends of the next lower strut sections.
Abstract: A farm utility wagon for carrying round or cylindrical bales with a center superstructure running from the front to the rear of the wagon. The superstructure can be raised or lowered by hydraulic cylinders. When the superstructure is in a lowered position it forms with the wagon base two parallel channels on to which two parallel rows of round or cylindrical bales can be set and moved. When the superstructure is raised, the bales are forced off to the side.
Abstract: A toy has a body and a tipping load carrier which is rotatably mounted in the body about a horizontal axis for rotation between a load-receiving position and at least one tipping position. The body has a planar upper surface portion. The load carrier has a planar lower surface portion with which the load carrier, when in its load-receiving position, is resting on the planar upper surface portion of the body. Each of two mutually aligned pivot pins defining said axis is fixed to one of the load carrier and the body. The pivot pins are mounted each in a vertically elongate hole which is formed in the other of the load carrier and the body.
Abstract: A motorized vehicle has an elongated space between a drivers cab at the front and a garbage compactor at the rear, one side of the space being occupied by a glass collection bin and a can collection bin. The other side of the space is occupied by a newspaper receptacle, between a glass hopper and a can hopper. The collection bins move several feet laterally and then tilt to dump away from the side of the vehicle. The paper receptacle tilts to discharge. The hopper and vertical conveyors are enclosed and the conveyors cannot move unless the access doors are closed. All actuations are hydraulically powered with "dead man" safety control valves.
Abstract: A machine for clearing and cleanly chipping trees and brushwood in the path of the machine as it moves forward. A pair of counterrotating disk cutters cut a kerf in the standing material and propel the cut material upwardly and rearwardly to the throat between a pair of feed rollers. The feed rollers deliver the cut material to a chipper, which reduces the material to chips and delivers them to a chip storage bin. The bin can be tilted to dump chips alongside the machine. The entire mechanism is carried by a self-propelled, articulated, track-supported vehicle which is especially well-suited for operation over soft, boggy ground.
Abstract: Tobacco plants are harvested by having an operator ride a harvesting vehicle along a plant row so that as plants are successively cut from the ground by a cutter on the vehicle, the operator may grasp the severed plant and impale the same onto an upright stake likewise carried by the vehicle. As the stake becomes loaded with plants, the operator may remove the loaded stake from its holding socket on the vehicle and lay the same on a rearwardly disposed deck. He then replaces the loaded stake with an empty stake obtained from a supply thereof carried by the vehicle, and repeats the cutting, impaling and replacement steps until a sufficiently large accumulation of loaded stakes has been obtained on the deck. Thereupon, the deck is tilted to an inclined position so as to dump the plant-loaded stakes onto the ground in a pile, whereupon the cycle is repeated.
Abstract: A method of loading bales of refuse from a horizontally acting baling press on to a transport vehicle without the use of a separate loading machine such as a fork-lift truck comprises aligning the transport vehicle with a discharge from the press; moving each bale as it is discharged from the press on to a transverse table; moving some of the bales laterally so that the bales are formed into two or more rows side by side aligned with the transport vehicle and moving the two rows of bales progressively forward as successive bales are discharged from the press so that the rows are moved from the transverse table on to the vehicle and the rows are built up on the vehicle until the vehicle is fully loaded.
Abstract: In a dump truck including a base supporting a dump bucket supported pivotally along one of its upper edges at the upper ends of vertically extending telescoping struts carried by the base, and power devices connected to the top edge of the bucket in transversely spaced relation from its pivotal axis and operable to raise the bucket, whereby the bucket is first raised in a non-tilted position by extension of the struts, and then tilted to a dump position about its pivotal axis, the provision of a locking latch operable to secure the struts releasably in their extended positions, the latch being activated by movement of the bucket away from its horizontal position, and deactivated by the return of the bucket to its horizontal position.
Abstract: A dump truck bed including a tiltable dump bucket adapted to dump its load laterally of the bed, and mechanism operable to elevate it to any desired elevation within a substantial range before dumping, whereby its load may be dumped into high truck beds or other higher receptacles, and to move said bucket laterally of the bed in the direction of dumping, whereby its load may be dumped into receptacles further from the side of the bed.