Patents Issued in March 21, 2000
  • Patent number: 6038819
    Abstract: A powered drive assembly for positioning various slidable components within a vehicle interior. The powered drive assembly includes a motor assembly operably coupled to a flexible flocked drive cable which is supported for rotation within a housing. The flocked drive cable provides a helical surface. Specific coupling members are adapted to engage the helical surface and operably couple the drive cable with the slidable component. For example, in one preferred embodiment a coupling bracket operably couples the flocked drive cable to a slidable window assembly of the type used in the rear opening of a pick-up cab for opening and closing the window. In a second preferred embodiment, the coupling member operably couples the drive cable to a curtain assembly located within the interior of an over-the-road truck cab for opening and closing the curtain.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: March 21, 2000
    Assignee: ASC Incorporated
    Inventor: George W. Klein
  • Patent number: 6038820
    Abstract: The present invention provides a fabric, consisting of multiple cables and multiple panels, for roofing applications. The cables are arranged in sets of three over the area to be covered, and the panels are suspended between the cable sets to complete the fabric. Specifically, each panel has four attachment points and is suspended between two adjacent cable sets such that it attaches to two of the three cables in each set on either side of it. More specifically, each panel attaches to the middle cable of the two sets on either side, and to the top cable in one set and the bottom cable in the other set. This particular arrangement creates overlapping rows of overlapping panels that viewed from one perspective resembles overlapping shingles on a conventional roof, however, when viewed from another perspective reveals that the individual panels are held apart by the cable sets to allow air and light to diffuse through.
    Type: Grant
    Filed: July 8, 1999
    Date of Patent: March 21, 2000
    Assignee: John Rainbolt
    Inventor: John Rainbolt
  • Patent number: 6038821
    Abstract: A sill support for protecting the sill of a window or door in new or retrofit construction which minimizes the need for on-site fabrication and comprises left and right end dam sections that engage a center connecting member of variable length depending upon the width of the door or window opening being treated.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: March 21, 2000
    Assignee: Plastic Components, Inc.
    Inventors: John A. Larson, Thomas J. Gretz, John Ofcharsky
  • Patent number: 6038822
    Abstract: Construction blocks having a generally octagonal configuration. The octagonal shape is defined by first through eighth external side portions respectively connected end-to-end to define an octagonal shape with respective first through eighth corners; a transverse chord portion extending from said first corner to said fourth corner; a perpendicular segment portion extending perpendicularly from said transverse chord portion to said third corner defining a right angled cutout; an angled segment portion extending from said second corner to said transverse chord portion defining a triangle cutout; and a middle cutout defined by said triangle cutout, said right angle cutout and said transverse cord portion.
    Type: Grant
    Filed: February 3, 1998
    Date of Patent: March 21, 2000
    Inventor: Clyde James Keys
  • Patent number: 6038823
    Abstract: An adjustable pier assembly for use with a railroad control house includes a frame member, a movable sleeve having a pair of flanges rigidly attached to an extending sidewardly therefrom, and a pair of fine adjustment threaded members having associated hardware. By adjusting an initial adjustment bolt, an initial "rough" height adjustment is provided between the pier and the sleeve. A final fine adjustment is then provided between the sleeve and the frame of the apparatus by adjusting the location of the fine adjustment nuts which combine to capture the flanges along the lengths of their respective fine adjustment bolts. When four adjustment pier assemblies are used on four corresponding corners of a railway control equipment house, quick initial setup followed by fine leveling adjustment in two axes is readily provided.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: March 21, 2000
    Assignee: Serrmi Products, Inc.
    Inventors: Michael B. Gallimore, Donald Gibson
  • Patent number: 6038824
    Abstract: A noncombustible transportable building has a floor structure that includes a floor frame constructed of steel members. A concrete floor is disposed within the steel floor frame. Steel wall studs are welded to the floor frame to form the wall frame for the building. In addition, a steel roof frame, constructed of steel roof studs, is welded to the wall frames for supporting a roof and ceiling. Polystyrene foam insulation is secured to the roof frame and wall frames, between consecutive wall and roof studs. A cement mixture is applied to both the interior and exterior of the building along the four outer walls, the roof and ceiling. A steel mesh is secured to the exterior and interior of the building along the roof and walls. A lifting frame including four vertical columns mounted to the frame positioned at points on the frame to evenly distribute the weight of the building as it is lifted or lowered. Cross members and diagonal members extend intermediate the columns to support the columns for lifting.
    Type: Grant
    Filed: March 17, 1998
    Date of Patent: March 21, 2000
    Inventor: William T. Hamrick, Sr.
  • Patent number: 6038825
    Abstract: An integral metal spacer for insulated glass units and method of fabricating the spacer. The spacer defines a substantially closed cross-section contour having a bottom surface, a pair of sidewalls, and a pair of generally abutting inner surfaces. A gap may be defined between the adjacent inner surfaces. The three interior corners are defined by fully mitered sidewalls. A pair of bridges are provided to integrally interconnect the inner surfaces of adjacent spacer segments. The method of fabricating includes taking a roll of flat metal stock and completely punching all corner and other structures therein while the stock is planar; severing the punched stock into individual spacer members; roll-forming the individual members into a finished linear spacer piece; applying desiccant, preferably a desiccant rope material during roll-forming; applying sealant; thereafter folding the elongate member into a square spacer thereby locking the desiccant therein.
    Type: Grant
    Filed: February 21, 1996
    Date of Patent: March 21, 2000
    Assignee: The Lockformer Company
    Inventors: Ashok Shah, Rick Blum, Gary Dickinson
  • Patent number: 6038826
    Abstract: This invention is directed to a multi-layer laminated shingle, wherein each shingle layer comprises granule and bituminous coated web, with the layers laminated together and with the butt zone of the base layer disposed against a bottom surface of the tab zone of the secondary layer and with the tab zone of the base layer disposed against the bottom surface of the butt zone of the secondary layer. The shingle lends itself to having tabs spaced by voids. Because the tabs in the base layer are inverted, the base layer's butt zone is visible through voids in the tabs of the secondary layer. The method of making the shingle lends itself to complementally cutting out the tabs of two side-by-side shingles from a given line. Enhanced nailing area is provided, and stacking of shingles for packaging is facilitated.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: March 21, 2000
    Assignee: CertainTeed Corporation
    Inventors: Kermit E. Stahl, Michael J. Noone, Joseph Quaranta
  • Patent number: 6038827
    Abstract: A trilaminated roofing shingle comprising:(a) an anterior layer consisting essentially of a rectangular, granular surfaced shingle sheet having an undivided headlap portion and a butt portion comprising a plurality of tabs of an average given breadth separated by spaces approximately 0.50 to 1.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: March 21, 2000
    Assignee: Building Materials Corporation of America
    Inventor: Frederick W. Sieling
  • Patent number: 6038828
    Abstract: A wall module has a first connecting portion with a non-symmetrical tongue with a tip at one end, an abutment near the opposite end, and a convex arcuate surface between them. The module also has a second connecting portion with a groove having a shape complementary to the tongue, including a blind first end, open second end with an abutment adjacent to it, and an arcuate surface between the ends. An intermediate portion connects the first and second connecting portions, and may be flat or define an open rectangle. Two modules are connected together by inserting the tongue of one into the groove of the other and rotating (e.g. about 90.degree.) until the abutments abut. The modules may be joined by bolts to other modules or an elevator cage.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: March 21, 2000
    Assignee: Alimak AB
    Inventor: Bo Backman
  • Patent number: 6038829
    Abstract: This invention relates to apparatus used in supporting safety rails and discloses a system in which a safety rail post support and security device is used in pairs or greater multiples to hold pieces of a safety rail at the edge of an elevated surface and is speedily attached to or detached from the three commonly found roof edge structures, that is, roofs that are flat right up to the edge, roofs that have a very low ledge or flashing around the perimeter, and roofs that have a parapet along the edge. Previous systems rely on cantilever weights positioned well in from the edge of the roof, interfering with the work to be done there. The post support and security device has a junction piece comprising four intersecting extruded stabilizer bars perpendicular to each other in one plane and a fifth bar protruding from that plane at ninety degrees. An upright post fits into one of the bars after the junction piece is bolted to a roof or to a wall abutting the edge of a roof, or is clamped to a parapet.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: March 21, 2000
    Inventor: Bert Franks
  • Patent number: 6038830
    Abstract: A heat insulated wall having two surface layers disposed at a distance from one another and are at least substantially vacuum-tight in construction. The two surface layers together with an at least substantially vacuum-tight connection element enclose an evacuable space that is filled with an evacuable thermal insulation material. The surface layers have angled sections with free ends directed away from the space and on which the connection element is disposed and is fastened in a vacuum-tight fashion to the angled sections.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: March 21, 2000
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Jurgen Hirath, Markus Schutte
  • Patent number: 6038831
    Abstract: An apparatus for packaging products in open or closed boxes, starting from a flat paperboard material, comprises a paperboard sheet removing assembly for successively removing individual paperboard die-cut sheets, to be supplied to an upward conveyor, supplying the paperboard sheets to a supplying line provided for supplying products to be packaged, which is arranged downward of a product separating device, the products being delivered by a product delivery device, the paperboard sheet being supplied to the line along a direction corresponding to the delivered product displacement direction, and a box forming assembly provided with a bending assembly for bending side flaps and top and bottom flaps of the boxes being formed being moreover provided.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: March 21, 2000
    Inventor: Vito Giovanni Nava
  • Patent number: 6038832
    Abstract: In the production of large packs (10) each comprising a pack group (11), in particular comprising cigarette packs (12), different-wrapper versions have to be taken into account. For this purpose, two folding turrets (21, 22) for different packaging material are provided, namely a folding turret (21) for cardboard blanks (13) and a folding turret (22) for blanks (20) made of paper or film. The two folding turrets (21, 22) are arranged one beside the other in horizontal alignment. Each folding turret (21, 22) is provided with four pockets which each run through three operating stations.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: March 21, 2000
    Assignee: Focke & Co (GmbH & Co.)
    Inventors: Heinz Focke, Thomas Hafker, Martin Stiller, Michael Schlenker
  • Patent number: 6038833
    Abstract: Fill seal structures having an elastomeric seal element contained in a housing for use with a liquid filling machine for bottles having fill necks, wherein lifting mechanisms are employed to move the bottles upwardly toward sealing faces of fill ports on the fill bowl of the machine, and wherein the seal structures are designed to provide for fluid tight seals between the top open ends of the bottle necks and the sealing faces, wherein the seal element consists of a generally tubular wall providing a fluid flow passage having an outlet end section and a complex inlet end section, the outlet end section being formed to provide a first contact surface for engaging and sealing against the top open neck end of a bottle, the inlet end section having a generally radially inwardly directed flexible hinge segment integral with the wall at a hinge seam, an annular crest on a radially inner portion of the hinge segment and extending and facing generally axially outwardly therefrom, the crest being adapted to bear again
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: March 21, 2000
    Inventor: Bernie Beringer
  • Patent number: 6038834
    Abstract: A method for protecting a roll of pressure-sensitive paper and a package produced by the method uses bubble wrap and film to protect the roll of paper. The bubble wrap has a plurality of bubbles which permanently entrap air. These pockets of air in the bubble wrap cushion the roll of paper initially as well as over long periods of time.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: March 21, 2000
    Assignee: Appleton Papers, Inc.
    Inventor: Tedford E. Haley
  • Patent number: 6038835
    Abstract: In an inserting apparatus an envelope holder comprises a first envelope support connecting to a document feed path, for holding an envelope in a filling position in or against a first surface, and a second envelope support connecting to an envelope discharge path, for carrying another envelope in or against a second surface and in an overlapping relation with an envelope simultaneously held in the filling position. Also described is a method in which an envelope to be filled is brought into the filling position before the preceding, filled envelope has left a feed-through path and this envelope brought into the filling position temporarily overlaps the filled envelope. The proposed apparatus and method enable an increased processing capacity.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: March 21, 2000
    Assignee: Hadewe B.V.
    Inventors: Hendrik Andries de Haan, Christiaan Antoon Munneke
  • Patent number: 6038836
    Abstract: Process and apparatus for producing packs and for transporting blanks (10), for producing the packs, along a conveying path (11). For the purpose of monitoring and/or for the optoelectronic sensing of the blanks (10), monitoring elements (15) with sensors (16, 17) are arranged in the region of the conveying path (11). The blanks (10) are guided in the region of the monitoring element (15) such that the blanks (10) are moved beyond at least one of the sensors (16, 17) with sliding abutment, in order for the sensor to be cleaned constantly.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: March 21, 2000
    Assignee: Focke & Co. (GmbH & Co.)
    Inventors: Heinz Focke, Martin Stiller
  • Patent number: 6038837
    Abstract: Boxes each having a plurality of relatively short side panels having upper edges three of which are free edges and one of which is connected to a cover panel itself having free edges and at least one flap projecting from one of the free edges are closed by first inserting the boxes one after the other into respective pockets formed between crosswise partitions on an endless conveyor belt spanned over a plurality of rollers. Each cover is folded onto the respective box by engagement with the partitions of the respective pocket on insertion of the respective box into the respective pocket. Then adhesive is applied to the flaps while the boxes are in the pockets and the adhesive-coated flaps are pressed against the boxes while the boxes are in the pockets.
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: March 21, 2000
    Assignee: SIG Pack Systems AG
    Inventor: Heinz F. Odenthal
  • Patent number: 6038838
    Abstract: A packaging unit (1) for continuously producing aseptic sealed packages (2), containing a pourable food product, from a tube (14) of packaging material filled with the food product; the unit (1) has a first and second chain conveyor (10, 11) respectively having a number of jaws (12) and a number of counter-jaws (13), which interact with and grip the tube (14) to heat-seal cross sections of the tube; and the chain conveyors (10, 11) also have half shell elements (38) for controlling the volume of the packages (2), and which are connected to respective jaws (12) and counter-jaws (13) and cooperate with a relative cam (44) for controlling the relative movement of the half shell elements to and from the supply path (A) of the tube (14) of packaging material.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: March 21, 2000
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventor: Paolo Fontanazzi
  • Patent number: 6038839
    Abstract: A form-fill-seal machine in which a heated longitudinal seam sealer continuously forms a longitudinal lap seam along lapped edges of the tube being formed. This longitudinal lap seam sealer can be used in machines having conventional cross sealing jaws as well as in machines in which the cross sealing jaws move in the direction of the moving film during the cross sealing operation. The heated longitudinal seam sealer includes a wafer thin internal hot air dispenser that discharges hot air from both surfaces on the surfaces to be fused together. The heated longitudinal seam sealer also includes an external hot air dispenser that includes a plurality of hot air discharge jets through which hot air is discharges on the outer surface of one of the overlapped edges that not only provides necessary heat to cause fusion but also exerts sufficient pressure on the overlapped edge to insure proper sealing.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: March 21, 2000
    Assignee: Triangle Package Machinery Company
    Inventor: John M. Linkiewicz
  • Patent number: 6038840
    Abstract: A rear discharge mower unit (50) with a mower housing (55) defining grass clippings flow paths for directing grass clippings rearward. The mower unit includes a power transmission mechanism for rotating a center blade (58) and a second side blade (60) in one direction and a first side blade (59) in the other direction, a center baffle (63) extending around a rotational axis of the center blade and defining a center flow path (69a) for feeding grass clippings to a grass clippings outlet (66), a first side baffle (64) extending around a rotational axis of the first side blade (59) and defining a first side flow path (69b) for feeding grass clippings to the grass clippings outlet (66), and a second side baffle (65) extending around a rotational axis of the second side blade (60) and defining a second side flow path (69c) for feeding grass clippings to the center flow path (69a).
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: March 21, 2000
    Assignee: Kubota Corporation
    Inventors: Shozo Ishimori, Masatoshi Yamaguchi, Cristophe Auvergne, Bertrand Leguillette
  • Patent number: 6038841
    Abstract: An arrangement is provided for leveling the blade housing of a mower. The housing is suspended from the underside of a vehicle frame by a pair of suspension arms pivotally connected to the housing and the frame. A pair of brackets are joined to opposite sides of the housing, and a third bracket is joined to an end of the housing. An operator-controlled lift handle is connected to a rod pivotally connected to the frame. Three lift arms are joined to the rod so as to be displaced when the lift handle is actuated. First and second cables extend between respective ones of the pair of brackets, and a third cable extends between the third lift arm and the third bracket. The cables are selectively locked to their respective brackets. When the lift handle is activated to lower the housing to its maximum extent, unlocking of the cable permits the entire housing to settle on the ground.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: March 21, 2000
    Assignee: Murray, Inc.
    Inventors: Ray G. Bates, Jr., Robert M. Deweese, Jr., John A. Burns
  • Patent number: 6038842
    Abstract: A rotary blade assembly for a rotary mower that provides an equivalent cut with a substantial reduction in necessary driving power, and a method of implementing the same to reduce the necessary driving power of a mower. The rotary blade assembly includes a support structure fixedly disposed to a rotary drive shaft, at a height sufficient to avoid or to minimize contact with vegetation, such that the rotary drive shaft rotates the support structure about an axis. The rotary blade assembly includes a plurality of cutting elements that project downwardly and outwardly from the support structure to a predetermined distance such that the cutting elements are positioned to avoid contact with the ground and to cover the area to be cut in a more uniform way. The support structure of the rotary blade assembly can be a support arm having the cutting elements spaced over a length thereof.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: March 21, 2000
    Inventor: Osvaldo R. Quiroga
  • Patent number: 6038843
    Abstract: A mechanism for improving the dispersal of clippings in a container that receives clippings from a chute extending upwardly from a mower deck. A V-shaped deflector is provided and is struck by a portion of the clippings stream exiting the chute such that clippings are directed to the side portions of the container and a portion of the clippings stream passes beneath the deflector and accumulates against a back wall of the container in the central portion of the container.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: March 21, 2000
    Assignee: Deere & Company
    Inventors: Daniel Angelo Sebben, Melvin Orville Lux, Timothy Paul Zellmer, Matthew Paul Gueller, Brian David Seegert
  • Patent number: 6038844
    Abstract: A rake arm deployment spreader with two arms and an elbow member arrangement, optionally and preferably having a locking mechanism involving an overcenter arrangement of certain pivots, for deployment or retraction of a folding hay rake which is towable by a tractor. The hay rake has a primary towable frame with right and left secondary frames pivotally attached adjacent the rear of the primary frame. The deployment spreader assembly is pivotally attached to the primary and secondary frames for pivoting the secondary frame relative to the primary frame. The deployment spreader includes a telescopic arm and a leg and link to control the telescopic arm.
    Type: Grant
    Filed: January 5, 1998
    Date of Patent: March 21, 2000
    Assignee: H&S Manufacturing Co., Inc.
    Inventors: Kenneth J. Peeters, Gregory L. Landon
  • Patent number: 6038845
    Abstract: A process for bobbin replacement on a flyer frame provided with a drafting frame, flyers, spindles and a bobbin rail, in which, while the flyer frame is running, a sliver end for each sliver supplied by the drafting frame is placed upon an empty bobbin sleeve. Initially only the flyers and the spindles of the flyer are driven. The flyers and the spindles are either immediately advanced in a forward direction or are initially driven backwards and after the lapse of a predetermined time period, brought to standstill and then driven forwardly, whereby the standstill of the flyers and the spindles coincide in time or are offset in time. After the start of the forward drive of the flyers and the spindles, the time-delayed drafting frame is set into operation.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: March 21, 2000
    Assignee: Zinser Textilmaschinen GmbH
    Inventors: Franz Machnik, Hans-Peter Weeger
  • Patent number: 6038846
    Abstract: The invention concerns a roving machine with a device for the automatic replacement of full roving bobbins journalled on a bobbin rail 4, with empty roving sleeves 13, which has at least one guide rail 5 for feeding a suspension carriage train 10 into and out of the region having front and rear flyer rows of a flyer rail 3 and a replacement region, the guide rail being transverse to the longitudinal direction of the roving machine and the suspension carriage trains having hangers in which the full bobbins 12 or the empty roving sleeves can be suspended for their automatic replacement in working positions, whereby the suspension carriage trains are each displaceable between the front and rear flyer rows in the guide rails and whereby the bobbin rail 4 is laterally movable relative to the suspension carriage train 10.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: March 21, 2000
    Assignee: Zinser Textilmaschinen GmbH
    Inventor: Karl-Heinz Mack
  • Patent number: 6038847
    Abstract: A process for manufacturing different shrinkage micro-fiber texture yarn which uses a blend of micro-fiber yarn having a boil-off shrinkage lower than 10% and a low crimped filament having a boil-off shrinkage higher than 15%. The different shrinkage micro-fiber texture yarn is made by false twisting and drawing the micro-fiber, combining the micro-fiber with the low crimped filament and then intermingling the yarns together by using an air-tangling jet.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: March 21, 2000
    Assignee: Nan Ya Plastics Corporation
    Inventor: Zo-Chun Jen
  • Patent number: 6038848
    Abstract: In the case of a method for frequency support in operation of a power station system, the spontaneous power increase is carried out by supplying an additional medium (19) to the operating process of this power station system. This medium (19) is composed of a basic material (17) to which an amount of energy (18) required for its chemical and/or physical reaction is added. The medium (19) which is provided for the operating process is stored under pressure (26) in a container (20) and is available spontaneously at any time for its use.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: March 21, 2000
    Assignee: Asea Brown Boveri AG
    Inventor: Hansulrich Frutschi
  • Patent number: 6038849
    Abstract: A method is provided to ensure that a combustion turbine power generation system may operate at maximum allowable power at elevated ambient temperature and/or at low air density. The method includes providing at least one combustion turbine assembly including a compressor, an expansion turbine operatively associated with the compressor, a generator coupled with the expansion turbine; a combustor feeding the expansion turbine; flow path structure fluidly connecting an outlet of the compressor to an inlet of the combustor.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: March 21, 2000
    Assignee: Michael Nakhamkin
    Inventors: Michael Nakhamkin, Boris Potashnik
  • Patent number: 6038850
    Abstract: A combined cycle power plant comprises a gas turbine system and a steam cycle system having a steam turbine to be driven by the steam generated by the waste heat of the exhaust gas of the gas turbine system, wherein the steam from the steam cycle system flows through a gas turbine cooling system of the gas turbine to cool the gas turbine blades and other elements of the gas turbine system to be cooled and the waste heat of the gas turbine system is effectively collected. The gas turbine cooling system has two or more than two cooling ducts formed in two or more than two elements of the gas turbine system to be cooled such as the gas turbine blades and the combustor of the gas turbine system so that steam is made to flow through the cooling ducts of these two or more than two elements to be cooled to effectively and maximally exploit the cooling potential and the waste heat collecting potential of the steam and hence improve the overall thermal efficiency of the plant.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: March 21, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Fumio Ohtomo, Yuji Nakata, Yoshitaka Fukuyama, Asako Inomata, Sachio Shibuya, Akinori Koga, Junji Ishii, Shoko Ito, Hironobu Yamamoto
  • Patent number: 6038851
    Abstract: An exhaust re-combustion type combined cycle power generation plant comprises a gas turbine plant, a boiler connected to the gas turbine plant, in which an exhaust gas from the gas turbine plant is heated, a steam turbine plant connected to the boiler and provided with a condensate and feed water system and a low temperature reheat system, in which the heated exhaust gas from the boiler is supplied to the condensate and feed water system as a heat source, a cooling steam supply system connected to the low temperature reheat system and adapted to supply a cooling steam to the high temperature section of the gas turbine plant, and a cooling steam recovery system connected to the high temperature section for recovering the cooling steam after cooling the high temperature section to an intermediate stage of an intermediate turbine of the steam turbine plant.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: March 21, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Akio Shiba
  • Patent number: 6038852
    Abstract: A gas turbine augmentor fuel manifold unit is provided which includes a plurality of fuel manifolds, each having a plurality of feed tubes, and at least one wear resistant clamp for clamping the feed tubes. The wear resistant clamp includes first and second wear sleeves, first and second clamp members, and a fastener. The wear sleeves are disposed between the clamp members and the tubes to minimize wear therebetween. The first wear sleeve, which is fixed to one of the feed tubes, includes a plurality of retaining tabs to limit the travel of the first and second clamp members.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: March 21, 2000
    Assignee: United Technologies Corporation
    Inventor: George R. Celi
  • Patent number: 6038853
    Abstract: A two-stage method for NO.sub.x reduction in an oxygen-rich engine exhaust comprises a plasma oxidative stage and a storage reduction stage. The first stage employs a non-thermal plasma treatment of NO.sub.x gases in an oxygen-rich exhaust and is intended to convert NO to NO.sub.2 in the presence of O.sub.2 and hydrocarbons. The second stage employs a lean NO.sub.x trap to convert such NO.sub.2 to environmentally benign gases that include N.sub.2, CO.sub.2, and H.sub.2 O. By preconverting NO to NO.sub.2 in the first stage with a plasma, the efficiency of the second stage for NO.sub.x reduction is enhanced. For example, an internal combustion engine exhaust is connected by a pipe to a first chamber in which a non-thermal plasma converts NO to NO.sub.2 in the presence of O.sub.2 and hydrocarbons, such as propene. A flow of such hydrocarbons (C.sub.x H.sub.y) is input from usually a second pipe into at least a portion of the first chamber. The NO.sub.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: March 21, 2000
    Assignee: The Regents of the University of California
    Inventors: Bernardino M. Penetrante, George E. Vogtlin, Bernard T. Merritt, Raymond M. Brusasco
  • Patent number: 6038854
    Abstract: A non-catalytic two-stage process for removal of NO.sub.x and particulates from engine exhaust comprises a first stage that plasma converts NO to NO.sub.2 in the presence of O.sub.2 and hydrocarbons, and a second stage, which preferably occurs simultaneously with the first stage, that converts NO.sub.2 and carbon soot particles to respective environmentally benign gases that include N.sub.2 and CO.sub.2. By preconverting NO to NO.sub.2 in the first stage, the efficiency of the second stage for NO.sub.x reduction is enhanced while carbon soot from trapped particulates is simultaneously converted to CO.sub.2 when reacting with the NO.sub.2 (that converts to N.sub.2). For example, an internal combustion engine exhaust is connected by a pipe to a chamber where carbon-containing particulates are electrostatically trapped or filtered and a non-thermal plasma converts NO to NO.sub.2 in the presence of O.sub.2 and hydrocarbons. Volatile hydrocarbons (C.sub.x H.sub.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: March 21, 2000
    Assignee: The Regents of the University of California
    Inventors: Bernardino M. Penetrante, George E. Vogtlin, Bernard T. Merritt, Raymond M. Brusasco
  • Patent number: 6038855
    Abstract: A collector is disclosed for the primary pipes of an exhaust manifold in an internal combustion engine. The collector includes a common cavity and a plurality of primary pipes having a first cross-sectional area at their outlet ends and second cross-sectional area at an upstream location, the first cross-sectional area being less than the second cross-sectional area, with the primary pipes being in direct contact with the common cavity of the collector and further arranged to include a single central pipe with the remainder of the pipes spaced around the central pipe, with the outlet of the central pipe being formed as a conically tapering portion and the outer wall of the central pipe forming part of the inner wall of the remainder of the pipe.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: March 21, 2000
    Assignee: AB Volvo
    Inventors: Lars Markstrom, Lennarth Zander, Erik Olofsson, Olof Norblad
  • Patent number: 6038856
    Abstract: A governor for air compressors of vehicles, that serves to control additional devices, especially energy-saving devices. From an inlet connection supplied from the compressed air supply, a pilot valve designed as a round slide valve with a small cross section is controlled. The pilot valve monitors the supply of compressed air to a switching piston for a double valve with a large cross section. The double valve is supplied with compressed air from the inlet connection and causes an outlet connection connected with the additional device to be charged with air or cut off from the air. The switching piston is connected with a valve tube of the round slide valve in such fashion that this valve, during switching processes, is moved in a direction opposite to that of regulating piston of the pilot valve, so that a precise switching of the governor that reflects the pressure differential is achieved at the upper and lower pressure limits.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: March 21, 2000
    Assignee: Knorr-Bremse
    Inventor: Holger Knaust
  • Patent number: 6038857
    Abstract: A control apparatus for a brake system having a housing with a first bore for retaining a spool valve and a second bore for retaining a selector valve. A cap separates the first bore into a first chamber and a second chamber. The first chamber has an inlet port connected to a source of fluid under pressure, a gear port for connected the source of fluid under pressure to a hydraulically operated device, a relief port connected to a reservoir and an outlet passage connected to a selector valve which communicates pressurized fluid through an outlet port to a brake booster. The second chamber is connected to the reservoir and the second bore. The a spool valve has a peripheral surface with first and second grooves separated by lands and an internal operational passage connecting the second groove to the outlet passage.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: March 21, 2000
    Assignee: Robert Bosch Technology Corporation
    Inventors: Kenneth Scott Towers, Richard Becker McClain, John e. Mackiewicz
  • Patent number: 6038858
    Abstract: What is disclosed is an inching and braking system for a hydraulically powered apparatus with a brake system and a drive system, wherein the drive system and the brake system can be controlled in order to generate a braking effect by actuating the inching and braking system. In the solution according to the invention, an inching valve arrangement and a brake valve arrangement can be coupled mechanically to one another so that the apparatus can be controlled more sensitively during transition from inching to braking.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: March 21, 2000
    Assignee: Mannesmann Rexroth AG
    Inventor: Hubertus Mies
  • Patent number: 6038859
    Abstract: This invention relates to a hydraulic fluid circuit comprising a reversible hydraulic motor, a braking device, two principal conduits respectively connected to the two principal supply and exhaust ports of the motor, a principal selector adapted to occupy a position of rest and two active positions in order to select the circulation of the fluid between the principal ports of the motor and the principal conduits to which they are connected. The circuit also comprises an intermediate system of selection capable of occupying a first configuration in which the principal selector is maintained in its position of rest and a second configuration in which the principal selector is allowed to leave its position of rest. The control means of the intermediate system of selection are connected to the braking device so that this intermediate system can pass from its first to its second configuration only when the brake is de-activated.
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: March 21, 2000
    Assignee: Poclain Hydraulics Industrie
    Inventors: Alain Mangano, Bernard Allart, Louis Bigo, Michel Garczarek, Yannick Ethet, Joel Crave, Philippe Peignon
  • Patent number: 6038860
    Abstract: A system and method for recirculating exhaust gas in a turbocharged internal combustion engine is disclosed. The disclosed method comprises the steps of: (a) recirculating a selected volume of exhaust gas from the exhaust manifold to the intake manifold via a recirculation conduit; (b) diverting a flow of cool intake air to bypass the engine via a bypass conduit; and (c) cooling the recirculating exhaust gas in the recirculation conduit using the flow of diverted intake air.
    Type: Grant
    Filed: August 12, 1999
    Date of Patent: March 21, 2000
    Assignee: Caterpillar Inc.
    Inventor: Brett M. Bailey
  • Patent number: 6038861
    Abstract: A main stage fuel mixer that reduces NO.sub.x and CO emissions of a gas turbine combustor by providing a more homogeneous fuel/air mixture for main stage combustion is provided. A gas turbine combustor according to the present invention includes a nozzle housing having a nozzle housing base, a plurality of main nozzles, and a main stage fuel mixer. A main combustion zone is located adjacent to the nozzle housing. Each main nozzle extends through the nozzle housing and is attached to the nozzle housing base. The main stage fuel mixer has a plurality of inlets, each of which is adapted to receive a flow of gas, and an outlet adjacent to the main combustion zone. The main stage fuel mixer has a plurality of transition ducts, each associated with one inlet. Each transition duct provides fluid communication from the inlet associated with the transition duct to the outlet.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: March 21, 2000
    Assignee: Siemens Westinghouse Power Corporation
    Inventors: David J. Amos, Mitchell O. Stokes
  • Patent number: 6038862
    Abstract: A vibration damper 38 for a fuel nozzle 24 having a central axis about which are disposed an inner 34 and outer 36 concentric fuel tubes. The damper includes a sleeve 40 and at least two legs 42, each leg having a radial portion extending from the sleeve and a resilient, longitudinally extending portion 46. The sleeve engages the inner tube while the longitudinally extending portions of the legs bear against the inner surface 37 of the outer tube to dampen vibrations between the concentric tubes. Besides damping objectionable vibratory forces experienced by the fuel tubes in the fuel nozzle, the present invention offers minimal fuel flow blockage in the concentric fuel tubes.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: March 21, 2000
    Assignee: United Technologies Corporation
    Inventors: Jeffrey D. Melman, Aaron S. Butler
  • Patent number: 6038863
    Abstract: The burner arrangement for a gas turbine comprises at least one burner (2), which is arranged in the plenum of the gas turbine and leads with an inner injection space into a combustion chamber and to which compressed air is admitted on the outside from a compressor stage of the gas turbine. Furthermore, a fuel lance (9) for the alternative feeding of liquid and/or gaseous fuels is allocated to the burner (2), which fuel lance (9) has a central liquid-fuel tube (19) and a pilot gas tube (11) concentrically surrounding the liquid-fuel tube (19), the tubes (11, 19) ending in associated outlet openings (22, 23, 23a-c) in a lance head (12) at the tip of the fuel lance (9).
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: March 21, 2000
    Assignee: Asea Brown Boveri AG
    Inventors: Jakob Keller, Paul Marlow, Robin McMillan, Martin Valk
  • Patent number: 6038864
    Abstract: A burner includes an axis and a configuration which is rotationally symmetrical relative to the axis and includes an outer casing and an inner casing coaxial thereto. The configuration defines an annular gap extending from an inlet to an outlet for guiding a stream of oxygen-containing gas. A multiplicity of nozzles for supplying a fuel to the stream and a swirl lattice are disposed in the annular gap. The configuration including the outer and inner casings is constructed in such a way that the stream flows through the annular gap between the swirl lattice and the outlet at an essentially constant meridional velocity. The burner is particularly suitable for use in a gas turbine.
    Type: Grant
    Filed: March 23, 1998
    Date of Patent: March 21, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventors: Bernd Prade, Bernhard Schetter, Holger Streb
  • Patent number: 6038865
    Abstract: A temperature-controlled appliance is provided with mutually-independent temperature-controlled compartments arranged close to each other. Each of the compartments comprises a casing formed of a heat-insulating layer, a thermal conductor arranged in the casing and provided with a heat-conducting surface located opposite a storage space in the casing, a Peltier device thermally connected with the thermal conductor, a power supply for feeding electric power to the Peltier device, and a controller for controlling electric power to be fed to the Peltier device so that a temperature in the casing is controlled.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: March 21, 2000
    Assignee: Thermovonics Co., Ltd.
    Inventors: Hideo Watanabe, Motohiro Sakai, Hirofusa Tezuka
  • Patent number: 6038866
    Abstract: In a gas pressure-driven type cryogenic refrigerating machine, an inner space of a cylinder 2 is divided into a lower pressure room 20, an upper pressure room 29 and expansion rooms 30, 31 by a slack piston 17 and a displacer 22 connected to the slack piston, a rotary valve 35 alternately changes between a high-pressure valve-open position for supplying high-pressure helium gas to the upper pressure room 29 and the expansion rooms 30, 31 and a low-pressure valve-open position for discharging the helium gas in the upper pressure room 29 and the expansion rooms 30, 31, and a difference in gas pressures between the upper and lower pressure rooms 29, 30 causes the slack piston 17 to be driven to reciprocate the displacer 22 thereby producing a cold condition at an extremely low temperature level.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: March 21, 2000
    Assignee: Daikin Industries, Ltd.
    Inventors: Masakazu Okamoto, Toshiyuki Kurihara
  • Patent number: 6038867
    Abstract: A thermally insulating joint for multilayer insulating blankets for a superconducting magnet with layers of low thermal emissivity material separated by low conductivity spacers staked together with adjacent joints and vents offset from each other and with low emissivity adhesive strips overlying the remote ends of adjacent layers of the joined blankets.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: March 21, 2000
    Assignee: General Electric Company
    Inventors: William Louis Einziger, Phillip William Eckels, Michael Loren Creel
  • Patent number: 6038868
    Abstract: Apparatus and methods for freezing products, such as food products, in which a breathable liquid cryogen is sprayed onto the products as they are conveyed into the insulated enclosure of a mechanical conveyor freezer. Some of the cryogen vaporized through contact with the products is ducted into the top of the enclosure, and means may be provided for spraying cryogen directly into the freezer enclosure.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: March 21, 2000
    Assignee: The BOC Group plc
    Inventors: Michael B. Pooley, Carl N. Strotton, David G. Wardle