Including Mold Charging Means Patents (Class 425/64)
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Patent number: 10940947Abstract: A waste compaction system includes a trolley for collecting waste and a docking station that is integratable into a cabin monument of a vehicle. The trolley includes a housing with chambers for waste, an opening for introducing waste, a vacuum compaction mechanism assigned to a chamber, and a suction port accessible from outside the housing and couplable to the compaction mechanism. The compaction mechanism includes a compaction sheath extending from a bottom of the housing to a frame arranged opposite the bottom, and is fillable through the opening, and a rigid plate is arranged on or in at least one lateral surface of the compaction sheath and moves together with the compaction sheath during the evacuation thereof. The docking station and the trolley mate with each other. The docking station includes another suction port that is couplable to a suction line in the vehicle and the first suction port.Type: GrantFiled: October 17, 2017Date of Patent: March 9, 2021Inventors: Ralf Schliwa, Marc Spille
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Patent number: 9157246Abstract: A method for extruding and depositing a slurry or mortar onto a selected work surface uses a mortar gun assembly with a chamber for receiving mortar from a remote supply hopper and an extruder configured to selectively apply a bead or ribbon of mortar of selected thickness onto the work surface. The mortar gun assembly provides mortar from the hopper under pressure and the user selectively applies mortar by controlling a rotating port valve between the hopper and the mortar gun chamber. The rotating port valve provides a “rest state” in which the mortar is not sent to the mortar gun, but is instead re-circulated by the pump back to the hopper so un-dispensed mortar is kept moving and cannot dry or set.Type: GrantFiled: May 18, 2012Date of Patent: October 13, 2015Inventor: Douglas S. Campbell
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Patent number: 8845940Abstract: Fresh concrete is treated with carbon dioxide prior to delivery to a product mold for forming concrete products. Carbon dioxide gas is directed through a manifold, which may be coupled to a feedbox or a hopper, upstream from the product mold. Treating the fresh concrete with the carbon dioxide gas while it is in a loose state prior to placement in the product mold may generally promote uniform and enhanced carbon dioxide uptake.Type: GrantFiled: October 25, 2012Date of Patent: September 30, 2014Assignee: Carboncure Technologies Inc.Inventors: Robert Niven, George Sean Monkman, Dean Forgeron
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Patent number: 8770139Abstract: An apparatus and process for depositing slurry upon a moving forming web. The apparatus includes a pivotally mounted headbox for depositing slurry from the inner bottom surface of the headbox down an inclined spillway as a continuous curtain onto a moving web. The headbox is mounted transverse to the direction of travel of the moving web. The headbox also has vertical edge boards, including a headbox back edge board and two opposed headbox side edgeboards, on three respective sides of the headbox to prevent slurry from spilling over the sides and back of the headbox. The headbox is supplied with slurry from a slurry mixer by a feed line mounted on a reciprocating trolley which moves, transverse to the direction of travel of the moving web, back and forth along the length of the headbox.Type: GrantFiled: March 3, 2009Date of Patent: July 8, 2014Assignee: United States Gypsum CompanyInventors: William A. Frank, Alfredas Blyskis
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Patent number: 8613611Abstract: The conductive polyrotaxane of the present invention contains an electron-accepting cyclic molecule in each of its repeating unit. Since the electron-accepting cyclic molecule remains stable because of molecular interaction with a ?-conjugated oligomer molecule, the electron-accepting cyclic molecule is not dissociated during rotaxane polymerization reaction, and thus a conductive polyrotaxane of stable quality can be obtained.Type: GrantFiled: April 22, 2010Date of Patent: December 24, 2013Assignee: National Institute for Materials ScienceInventors: Taichi Ikeda, Masayoshi Higuchi, Dirk G. Kurth
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Patent number: 8568129Abstract: A floating cut-off bar coupled to a feed drawer whereby a mechanism allows the floating cut-off bar to engage the specified contour of side rails and a division plate in a mold box assembly and aid in material distribution by screeding excess material and delivering additional material to areas of the mold box as necessary and method of making wall blocks therefrom. The specified contour of the side rails and optionally division plate is designed to optimally deliver material to achieve a specified uniform density of the block produced for greater structural integrity, strength and durability of the block.Type: GrantFiled: June 3, 2010Date of Patent: October 29, 2013Assignee: Keystone Retaining Wall Systems LLCInventors: David M. LaCroix, Robert A. MacDonald
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Patent number: 8518308Abstract: An apparatus may include a nozzle assembly configured to extrude material through an outlet; and a controllable robotic arm coupled to the nozzle assembly, the robotic arm having at one end a gripper configured to pick up an element and deposit the element at a desired position relative to the extruded material. The element may be one of: a reinforcement member for a structure being constructed; a segment of a plumbing pipe; an electric network component; and a tile.Type: GrantFiled: August 24, 2011Date of Patent: August 27, 2013Assignee: University of Southern CaliforniaInventor: Behrokh Khoshnevis
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Patent number: 8470229Abstract: A mat for creating patterns in concrete includes a center portion, a feathered border surrounding the center portion, a top surface, and a bottom surface. A design stamp is positioned in the center portion of the bottom surface.Type: GrantFiled: January 18, 2007Date of Patent: June 25, 2013Inventors: Jonathan Nasvik, Paul C. Nasvik
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Patent number: 8246877Abstract: Method and apparatus for casting a concrete product with a substantially horizontal slipform casting process, wherein the concrete mix is fed at least in one step through a limited cross-section moving progressively along with the cast, whereby the height of the product forming part (1) is changed during the cast. The invention also comprises a product forming part (1) having an adjustable height.Type: GrantFiled: January 3, 2006Date of Patent: August 21, 2012Assignee: Elematic Oy ABInventor: Lassi Järvinen
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Patent number: 8128390Abstract: A portable concrete molding machine can extrude concrete moldings of a range of widths by the provision of one or more tunnel plates within the mold, the machine being provided with respective pusher plates that have pusher faces of widths complementary to the effective widths of the mold. A pair of links connect a gearbox to the pendulum arms of the pusher means to ensure even driving force applied to the pusher plates as they undergo reciprocating movement to allow concrete to flow from a hopper through a mouth of the mold and to extrude the concrete from the mold, the machine being advanced in an extrusion direction by the extrusion of the concrete from the mold.Type: GrantFiled: May 2, 2008Date of Patent: March 6, 2012Assignee: Edgetec Group Pty Ltd.Inventor: Fergus O'Hara
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Publication number: 20120038074Abstract: An apparatus may include a nozzle assembly configured to extrude material through an outlet; and a controllable robotic arm coupled to the nozzle assembly, the robotic arm having at one end a gripper configured to pick up an element and deposit the element at a desired position relative to the extruded material. The element may be one of: a reinforcement member for a structure being constructed; a segment of a plumbing pipe; an electric network component; and a tile.Type: ApplicationFiled: August 24, 2011Publication date: February 16, 2012Applicant: UNIVERSITY OF SOUTHERN CALIFORNIAInventor: Behrokh Khoshnevis
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Patent number: 8113807Abstract: Methods and apparatus for fabricating structures, extrusion units, and structures fabricated using such methods and apparatus are disclosed. The apparatus may include a support configured for rotation about a central axis, a carriage that may move along the support when the support rotates about the central axis such that the carriage may move along a first spiral path about the central axis, and an extrusion unit that may be supported by the carriage and may move along a second spiral path as the carriage moves along the first spiral path. The extrusion units may be configured to extrude a strip of material through an extrusion die as the extrusion unit moves along a previously extruded strip of material such that the extruded strip may be fused onto the previously extruded strip as the extruded and previously extruded strips pass the extrusion die.Type: GrantFiled: August 24, 2007Date of Patent: February 14, 2012Inventor: Timothy Wilkinson
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Patent number: 8029258Abstract: An apparatus may include a nozzle assembly configured to extrude material through an outlet; and a controllable robotic arm coupled to the nozzle assembly, the robotic arm having at one end a gripper configured to pick up an element and deposit the element at a desired position relative to the extruded material. The element may be one of: a reinforcement member for a structure being constructed; a segment of a plumbing pipe; an electric network component; and a tile.Type: GrantFiled: August 20, 2010Date of Patent: October 4, 2011Assignee: University of Southern CaliforniaInventor: Behrokh Khoshnevis
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Patent number: 7871256Abstract: A cable guide system and method are disclosed for a mold forming and extruding machine. The machine has a pair of spaced apart vertical members. The cable guide system includes a support shaft secured to the pair of vertical members. The support shaft retains a first stop member, a tensioning device, a spool loaded with a flexible reinforcement cable, and a second stop member. The spool cooperates with the tensioning device to prevent the cable from prematurely unraveling. The cable guide system further includes a guide member located below and forward of the spool and in horizontal alignment with a plunger. The guide member is capable of changing the direction of the flexible reinforcement cable as it is unwound from the spool. The plunger is capable of extruding a moldable substance from the machine while allowing the flexible reinforcement cable to pass through an aperture formed therein.Type: GrantFiled: March 6, 2009Date of Patent: January 18, 2011Assignee: Curb Solutions, LLCInventors: Aaron A. Techlin, Graham M. Conradt, Tyler N. Techlin
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Publication number: 20100260878Abstract: An auger feeder for concrete mix, comprising a helical segment (1), whereby the auger feeder comprises an insert (2) mounted on an upstream end of the auger feeder, said insert being manufactured in a material softer than that used for manufacturing the auger feeder's helical segment (1), and said insert comprising means (4) for fastening the auger feeder to a casting apparatus. The invention also comprises a method for manufacturing such an auger feeder, and a slipform-casting apparatus equipped with such an auger feeder.Type: ApplicationFiled: April 8, 2010Publication date: October 14, 2010Applicant: ELEMATIC GROUP OYInventors: Aimo SEPPÄNEN, Tapio KUKKA, Heikki LEHTONEN, Lassi JÄRVINEN, Jani EILOLA
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Patent number: 7708917Abstract: A method and apparatus for casting concrete elements with varying, determined length, equipped with one or with a plurality of longitudinal hollow cores, by means of a slipforming apparatus. The apparatus is movable with respect to the bed (2), said apparatus comprising forming members (10) for forming hollow cores. The mass is fed in the first step to the portion of the slab below the hollow cores, and in the second step the hollow-core forming members being brought onto the said portion of the slab and mass is being fed between the forming members and onto them. The forming member (10) for forming a hollow core comprises an attachable extension part (22). The height of a hollow core is changed by changing the extension part of the hollow core forming member.Type: GrantFiled: October 18, 2004Date of Patent: May 4, 2010Assignee: Elematic Oy ABInventors: Lassi Antero Järvinen, Aimo Tapio Seppanen
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Patent number: 7524180Abstract: In embodiments, the invention relates to an apparatus for applying a texture to pliable surfaces such as concrete panels used in construction of walls, sound barriers and other imprinted surfaces. The apparatus includes a main frame and a lift frame connected to the main frame with actuators. The actuators are operable to move the lift frame vertically. A flexible face is connected to the lift frame by a number of push devices. The push devices may be operated to apply force to a top surface of the flexible face. Attached to a bottom surface of the flexible face is a textured liner for applying a design to the pliable surfaces. The lift frame and the push devices operate to lay the flexible face flat on a pliable surface to imprint the design on the pliable surface. After imprinting the design, the flexible face is peeled away from the pliable surface.Type: GrantFiled: March 30, 2006Date of Patent: April 28, 2009Inventors: Douglas W. Myers, Richard Gary Fjelland
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Publication number: 20090051062Abstract: Methods and apparatus for fabricating structures, extrusion units, and structures fabricated using such methods and apparatus are disclosed. The apparatus may include a support configured for rotation about a central axis, a carriage that may move along the support when the support rotates about the central axis such that the carriage may move along a first spiral path about the central axis, and an extrusion unit that may be supported by the carriage and may move along a second spiral path as the carriage moves along the first spiral path. The extrusion units may be configured to extrude a strip of material through an extrusion die as the extrusion unit moves along a previously extruded strip of material such that the extruded strip may be fused onto the previously extruded strip as the extruded and previously extruded strips pass the extrusion die.Type: ApplicationFiled: August 24, 2007Publication date: February 26, 2009Inventor: Timothy Wilkinson
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Publication number: 20090053345Abstract: The present invention is an improved slip forming device for forming a concrete curb having a desired profile. The device consists of a hopper portion and a removeable extruder portion, the extruder portion being adapted and configured to extrude the concrete curb having the desired profile. The hopper portion of the invention has a top, an open bottom, side walls and a back wall having an opening. The extruder portion of the invention has a front wall, a back wall, a closed top, and open bottom and side walls. The front wall of the extruder has a front opening and the back wall of the extruder has a rear opening, the top and side walls of the extruder forming a channel between the front and rear openings of the extruder. The rear opening of the extruder is substantially in the form of the desired profile. The front wall of the extruder is releasably mounted to the back wall of the hopper such that the front opening of the extruder is in communication with the opening of the hopper.Type: ApplicationFiled: August 22, 2007Publication date: February 26, 2009Inventors: Jose Luis Simoes Martins, Afonso Condeco
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Patent number: 7452196Abstract: An apparatus may include a nozzle assembly configured to extrude material through an outlet; and a controllable robotic arm coupled to the nozzle assembly, the robotic arm having at one end a gripper configured to pick up an element and deposit the element at a desired position relative to the extruded material. The element may be one of: a reinforcement member for a structure being constructed; a segment of a plumbing pipe; an electric network component; and a tile.Type: GrantFiled: January 21, 2005Date of Patent: November 18, 2008Assignee: University of Southern CaliforniaInventor: Behrokh Khoshnevis
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Publication number: 20080274220Abstract: A portable concrete molding machine can extrude concrete moldings of a range of widths by the provision of one or more tunnel plates within the mold, the machine being provided with respective pusher plates that have pusher faces of widths complementary to the effective widths of the mold. A pair of links connect a gearbox to the pendulum arms of the pusher means to ensure even driving force applied to the pusher plates as they undergo reciprocating movement to allow concrete to flow from a hopper through a mouth of the mold and to extrude the concrete from the mold, the machine being advanced in an extrusion direction by the extrusion of the concrete from the mold.Type: ApplicationFiled: May 2, 2008Publication date: November 6, 2008Applicant: EDGETEC GROUP PTY LTD.Inventor: Fergus O'Hara
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Publication number: 20080131541Abstract: A device (1) for manufacturing a three-dimensional object by a layer wise solidification of a building material at positions in the respective layers that correspond to the object is provided. The device comprises a machine frame (2, 3, 4, 5); a door (73) that is mounted at the machine frame and is swiveling between an open position and a closed position; a container (25) that can be removed from the device; and a support device (26) that is vertically movable in the container and has an upper side, which forms a building platform (78) on which the three-dimensional object is generated layer wise. A mounting (74) for the container (25) is provided at the door (73) and an attachment (75) is provided at the container (25), which attachment can be brought into an engagement with the mounting (74), so that the container (25) can be moved into the device (1) by closing the door (73) and/or can be moved out of the device by opening the door (73).Type: ApplicationFiled: November 19, 2007Publication date: June 5, 2008Applicant: EOS GmbH Electro Optical SystemsInventors: Thomas Halder, Hans Perret
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Publication number: 20080111279Abstract: Method and apparatus for casting a concrete product with a substantially horizontal slipform casting process, wherein the concrete mix is fed at least in one step through a limited cross-section moving progressively along with the cast, whereby the height of the product forming part (1) is changed during the cast. The invention also comprises a product forming part (1) having an adjustable height.Type: ApplicationFiled: January 3, 2006Publication date: May 15, 2008Applicant: ELEMATIC OY ABInventor: Lassi Järvinen
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Patent number: 7273364Abstract: A drop box for a rotational molding system includes a substantially rigid outer shell, a substantially rigid inner shell, configured to contain unmelted polymer material, and thermal insulating material, disposed between the inner and outer shells. Substantially rigid bridge material interconnects the inner and outer shells and forms part of the rigid structure thereof. The bridge material is configured to provide a thermal break between the inner and outer shells, to reduce heat transfer therebetween.Type: GrantFiled: May 13, 2005Date of Patent: September 25, 2007Assignee: MFS, LLCInventors: David J. Laws, M. Taw Lindsey
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Patent number: 6998075Abstract: A method and apparatus are disclosed for slip-form casting a concrete product, the product being made from at least two different grades of concrete so that the concrete mix grade can be changed in an uninterrupted fashion during casting at a desired point along the length of the casting bed.Type: GrantFiled: December 17, 2002Date of Patent: February 14, 2006Assignee: Addtek Research & Development Oy ABInventor: Leo Sandqvist
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Patent number: 6969476Abstract: A method is disclosed for casting a concrete product using two or more different grades of concrete mix, in which method predetermined amounts of different grades of concrete mix are delivered at appropriate instants into the feeder hopper of the slip-form casting machine.Type: GrantFiled: March 25, 2003Date of Patent: November 29, 2005Assignee: Consolis Technology Oy AbInventor: Leo Sandqvist
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Patent number: 6962490Abstract: A concrete extruder attachment for a vehicle includes a hopper adapted to hold flowable concrete. The hopper has an upper concrete inlet and a lower concrete outlet. A slip form is connected to the lower concrete outlet. An internal vibrator causes concrete to flow from the hopper through the lower concrete outlet to the form. A mounting is provided which is adapted to mount to a vehicle. A hopper support is secured to the hopper. The hopper support is pivotally mounted to the mounting for pivotal movement between a first position with the hopper extending toward a first side of the vehicle and a second position with the hopper extending toward a second side of the vehicle. The support is selectively locked in one of the first position or the second position. The ability to pivot the hopper enables the concrete extruder to access corners.Type: GrantFiled: October 23, 2003Date of Patent: November 8, 2005Inventor: Norman John Garden
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Patent number: 6921501Abstract: A method of forming a circumferentially closed wall having the same cross-section over its entire length included providing at least two circumferentially closed inner falseworks each formed of circumferentially closed inner part and a circumferentially closed climbing strip releasably securable to an upper end of the main part. A concrete wall is formed in a plurality of concrete-placing steps, with use of the inner falseworks in more than one step. In a first concrete-placing step, an initial section of a concrete wall is formed. In each subsequent concrete-placing step, a circumferentially closed concrete wall section is formed on an upper end of an already formed section of the concrete wall.Type: GrantFiled: November 6, 2002Date of Patent: July 26, 2005Assignee: Rund-Stahl-Bau Gesellschaftm.b.H.Inventor: Hugo Mathis
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Patent number: 6913717Abstract: A method of constructing a rail track in which a concrete track slab is produced and rail track anchor members are inserted in the track slab by an inserter system mobile along the route of the rail track includes the following steps: using a machine for continuously pouring concrete to produce two concrete walls laterally delimiting the edges of the track slab to be poured; pouring the concrete track slab between the walls; and using the inserter system to insert anchor members in the freshly poured track slab, the tie plate inserter system being adjusted accurately by a measuring station, topographical survey points, a measuring system, and reflectors carried by the inserter system.Type: GrantFiled: December 4, 2002Date of Patent: July 5, 2005Assignee: AlstomInventors: Marc Sayadi, Yvan Skific
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Patent number: 6911165Abstract: A method is provided for fabricating a concrete slab in a substantially horizontal slip casting process method, concrete mix is fed into a mold through a delimited cross section moving progressively in the casting process so as to form a concrete product of a desired shape. Onto the surface of the casting bed (1) is placed a core (3, 9, 10, 11) capable of delimiting the cross section of the concrete product (5, 5?) so as to provide an opening or a provision for an opening in the bottom surface of the slab. A core is provided for obtaining an opening or a provision for an opening. The structure and/or material of the core is/are such that the core is capable of yielding in vertical direction. A core may also be a multipart core, the outer part of which becomes detached from the inner part of the core in conjunction with lifting off the concrete slab from the casting bed.Type: GrantFiled: April 2, 2003Date of Patent: June 28, 2005Assignee: Consolis Technology Oy ABInventors: Tarmo Sahala, Aimo Seppänen, Lassi Järvinen
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Patent number: 6878315Abstract: A method and apparatus are for fabricating a concrete product in a slip-form casting process, in which method concrete mix is fed into a slip-form mold of a defined cross section moving progressively in the casting process so as to obtain a concrete product of a desired shape. The method includes an interruptible guidance control of the prestressing tendons so as to allow the tendon guides to travel past supplementary parts such as reinforcing steels connected to the prestressing tendons.Type: GrantFiled: January 27, 2003Date of Patent: April 12, 2005Assignee: Consolis Technology Oy ABInventors: Lassi Antero Järvinen, Aimo Tapio Seppänen
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Patent number: 6849211Abstract: A method is provided are for fabricating a concrete product in a substantially horizontal slip-form casting process, in which method concrete mix is fed into a slip-form mold of a defined cross section moving progressively in the casting process so as to give a concrete product of a desired shape. The input power need of the concrete mix feed and compaction is measured, whereupon the travel resistance of the casting machine is controlled based on the value of a measured process variable. Therefore, quality variations in a slip-form cast product that are caused by changes in the density of the concrete mix and the travel resistance of the casting machine are eliminated.Type: GrantFiled: May 15, 2002Date of Patent: February 1, 2005Assignee: Addtek Research & Development Oy ABInventors: Lassi Järvinen, Arto Lähteenmäki, Aimo Seppänen
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Patent number: 6841110Abstract: A method for the production of prestressed concrete products and a plant for implementing the method. Moulds provided with pretensioned wires are moved through fixed casting machines into a hardening space. In the hardening space, the combination of mould and product is lifted sideways from the casting line before hardening, using synchronised lifting equipment. The combination may be stacked for space economy. After hardening, the product is removed from the mould using the same lifting equipment. The moulds are returned to the beginning of the casting line, during which stage they are cleaned and refurbished. The products are transferred to cutting and finishing stations.Type: GrantFiled: March 2, 2001Date of Patent: January 11, 2005Assignee: Addtek Research Development OY ABInventors: Aimo Seppänen, Heikki Kankkunen
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Patent number: 6841100Abstract: A method is disclosed for casting a concrete product, in which method the concrete product is cast in an essentially horizontal slipform casting process during which the top surface height and profile of the concrete product being cast is measured continually. Based on the measurement results, the relative proportion of the concrete mix flowing to the upper layer or lower layer of the concrete product is controlled by way of moving or tilting a feed trough (12) located below the concrete mix feed means (2).Type: GrantFiled: September 11, 2003Date of Patent: January 11, 2005Assignee: Consolis Technology Oy ABInventor: Aimo Seppänen
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Patent number: 6817849Abstract: A curb or other structure is formed by a moving slip form mold receiving material used to form the structure from a hopper. The slip form mold includes two portions pivotally connected to each other. In one configuration, the slip form mold portions form a straight structure and in another configuration they are employed to form a curved structure.Type: GrantFiled: December 5, 2001Date of Patent: November 16, 2004Assignee: B. R. Lee Industries, Inc.Inventor: Edgar Taylor
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Patent number: 6770228Abstract: A method for successive concrete of high vertical walls by using a climbing shuttering system having a support structure on which various concrete shuttering elements are loaded hanging downwards. The top supporting carrier and the climbing shuttering system can be supported on completed wall sections. There is at least one lifting device that brings about a relative movement between the too supporting carrier and a lower support carrier of the climbing shuttering system. The shuttering elements can be positioned in a substantially even surface to form a shuttering and at the same time the top supporting carrier can be positioned on the shuttering elements placing them respectively against the walls.Type: GrantFiled: June 29, 2001Date of Patent: August 3, 2004Assignee: Doka Industrie GmbHInventor: Ernst Röck
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Patent number: 6755633Abstract: A process and apparatus for manufacturing fiberglass-reinforced panels are provided. The apparatus includes a guide mechanism and drive mechanism to drive individual elongate molds through a gel coating spraying section and thereafter through an oven to cure the gel coat. The elongate molds are thereafter driven through first and second resin/fiberglass application stations to apply a composite of resin and fiberglass strands. The apparatus also includes a station whereby wooden boards may be placed over the top of the resin and the fiberglass strands, and thereafter to a vacuum station whereby a vacuum can be placed over the wooden boards, such that when a vacuum is drawn on the composite, the resin is drawn into the wooden boards to form an integrated deposit panel.Type: GrantFiled: November 30, 2001Date of Patent: June 29, 2004Assignee: Owens Corning Fiberglas Technology, Inc.Inventor: Lester D. Miller
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Patent number: 6722870Abstract: A spiral conveyor for a concrete extrusion machine has a first spiral conveyor section with a first external diameter. There is a second spiral conveyor section having a second external diameter which is greater than the first diameter. The second section is spaced apart from the second section. A third spiral conveyor section is between the first section and the second section. The first end of the third section is connected to the first section and the second end is adjacent to the second section. The second spiral conveyor section may be mounted on a hollow shaft of the third section. The second section has two longitudinally divided components, each having a recess therein. Connectors interconnect the two components and a locking device is between the hollow shaft and the second section.Type: GrantFiled: October 22, 2001Date of Patent: April 20, 2004Inventor: George Putti
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Publication number: 20030141608Abstract: A method and apparatus are disclosed for slip-form casting a concrete product, the product being made from at least two different grades of concrete so that the concrete mix grade can be changed in an uninterrupted fashion during casting at a desired point along the length of the casting bed.Type: ApplicationFiled: December 17, 2002Publication date: July 31, 2003Inventor: Leo Sandqvist
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Publication number: 20030091672Abstract: A method is provided for use of a concrete composition and an associated apparatus. The method provides for mixing of the concrete material, accelerant powder and, optionally, an associated substance to enable the controlled hardening of the concrete material in a monolithic structure. The apparatus can dispose a slip-plane film to facilitate a relatively continuous process.Type: ApplicationFiled: October 31, 2001Publication date: May 15, 2003Inventors: Dominick Michael Colavito, Joseph Michael Schmidt, Michael Joseph Buscarini, James Charles Peter Rosso, Ronald Warren Schmidt, Richard Charles Griffin
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Patent number: 6540435Abstract: A molding device for placement of formed cementitious material such as concrete on a mounting surface. The device is used in combination with a supply of pressurized cementitious material communicated through a hose from a conventional cement pump or the like. It features a mold unit having an a compression chamber at a first end communicating with an extrusion chamber at a second end. Cement material is forced into the compression chambers from the cement pump and extruded from the exit orifice of the extrusion chamber. The device is propelled forward by the pressure from the injected cement against the front of the device and away from the formed material means control any upward travel of said mold unit caused by said internal pressure against said top wall. Weights may be added to the top of the device to limit upward travel and a steering mechanism may be added to the front of the device to steer it on a defined course.Type: GrantFiled: November 16, 2000Date of Patent: April 1, 2003Inventor: Rodolfo Lizarraga
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Publication number: 20030003173Abstract: The invention relates to a method and apparatus for method for fabricating a concrete product in a substantially horizontal slip-form casting process, in which method concrete mix is fed into a slip-form mold of a defined cross section moving progressively in the casting process so as to give a concrete product of a desired shape. The method is characterized by the measurement of the input power need of the concrete mix feed and compaction, whereupon the travel resistance of the casting machine is controlled based on the value of a measured process variable. The invention can eliminate quality variations in a slip-form cast product that are caused by changes in the density of the concrete mix and the travel resistance of the casting machine.Type: ApplicationFiled: May 15, 2002Publication date: January 2, 2003Inventors: Lassi Jarvinen, Arto Lahteenmaki, Aimo Seppanen
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Publication number: 20020081344Abstract: A spiral conveyor for a concrete extrusion machine has a first spiral conveyor section with a first external diameter. There is a second spiral conveyor section having a second external diameter which is greater than the first diameter. The second section is spaced apart from the second section. A third spiral conveyor section is between the first section and the second section. The first end of the third section is connected to the first section and the second end is adjacent to the second section. The second spiral conveyor section may be mounted on a hollow shaft of the third section. The second section has two longitudinally divided components, each having a recess therein. Connectors interconnect the two components and a locking device is between the hollow shaft and the second section.Type: ApplicationFiled: October 22, 2001Publication date: June 27, 2002Inventor: George Putti
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Patent number: 5997270Abstract: A flexible automated trowel for sliding formwork machine allowing the finishing of a continuous trapezoidal wall of the type having one rectangular side and one side inclined towards the top or with two angular sides. A mold supporting the trowel comprises two straight sides, an enlarging setback originating from a formwork line. A driveway cutter proceeds from the enlarging setback in the direction of the slope of the angular wall. The cutter may have a concave face which is to be placed against a moldable face to produce a superior convex face to the continuous wall. Materials like concrete for curbs, gutters, driveway entrances may be continuously poured and necessitate little or no finishing touches.Type: GrantFiled: September 29, 1997Date of Patent: December 7, 1999Inventor: Hubert LaBonte
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Patent number: 5820887Abstract: Pre-stressed concrete railroad ties are manufacture by the slip form process in the absence of mold members, other than the slip form itself. Tie casting occurs on a portable casting soffits between portable soffit anchored deadmen supporting the pre-stressed tie tensile members immediately overlying the casting soffit. Tie formation occurs with the slip form passing around and over the pre-stressed tension members. Track fastening hardware is vibrationally inserted through windows of the slip form to place the track fastening hardware to precise measured dimension along the route of slip form movement and to configure that portion of the tie adjacent the track fastening hardware. End of tie locations as well as tie batch identification are likewise marked during the slip form process. Upon cure, the ties are cut at their marked end location.Type: GrantFiled: March 27, 1997Date of Patent: October 13, 1998Inventor: Richard L. Mogel
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Patent number: 5670178Abstract: Foamed plastic is applied on a roof substrate by progressively dispensing expandable plastic foam material on the substrate along a path and progressively confining the vertical and lateral expansion of the material along the path and relative to the substrate. Apparatus for applying the foamed plastic comprises a platform having opposite ends and opposite sides having an endless belt supported on the platform for displacement relative thereto in the direction between the opposite ends. The belt is supported above the roof substrate by laterally spaced rails or by tracks on the belt, and a motor is provided on the platform for driving the belt to move the platform along the path. A dispensing gun is supported on the front end of the platform for dispensing expandable plastic foam material onto the substrate ahead of the belt and vertical and lateral expansion of the material is confined by the belt and rails or tracks as the platform moves along the path.Type: GrantFiled: August 16, 1995Date of Patent: September 23, 1997Inventor: Richard A. West
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Patent number: 5618476Abstract: Pre-stressed concrete railroad ties are manufactured by the slip form process in the absence of mold members, other than the slip form itself. Tie casting occurs on portable casting soffits between portable soffit anchored deadmen supporting the pre-stressed tie tensile members immediately overlying the casting soffit. Tie formation occurs with the slip form passing around and over the pre-stressed tension members. Track fastening hardware is vibrationally inserted through windows of the slip form to place the track fastening hardware to precise measured dimension along the route of slip form movement and to configure that portion of the tie adjacent the track fastening hardware. End of tie locations as well as tie batch identification are likewise marked during the slip form process. Upon cure, the ties are cut at their marked end location.Type: GrantFiled: August 3, 1995Date of Patent: April 8, 1997Inventor: Richard L. Mogel
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Patent number: 5554392Abstract: The invention relates to an improved apparatus for the production of substantially vertical walls, and specifically, walls made of concrete which includes a single sided concrete form used, for example, to form a concrete wall against a preexisting wall or embankment, by pumping concrete into a gap between the form and the preexisting wall or embankment, and raising the form vertically as the pumped concrete settles and drys. The apparatus enables the construction of vertical walls of superior strength in less time as compared to currently available systems.Type: GrantFiled: April 17, 1995Date of Patent: September 10, 1996Inventor: Leroy D. Gray
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Patent number: 5533888Abstract: A system for continuously forming a concrete structure that extends in a generally horizontal direction and has a predetermined cross-sectional configuration is provided. The system includes a frame, a first form, and a second form. The first and second forms are coupled to the frame and support at least a portion of the sides of the concrete structure being formed. The second form forms a pattern in one of the outside surfaces of the concrete. The first form may also form a pattern. The pattern includes concave and convex portions that extend other than just in the horizontal direction. The second form coacts with the first form to enclose an area having a cross-sectional configuration corresponding to the predetermined cross-sectional configuration of the concrete structure. The frame includes a side arm assembly that slidingly engages the outside of one or both of the forms.Type: GrantFiled: February 28, 1994Date of Patent: July 9, 1996Inventor: John F. Belarde
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Patent number: 5527129Abstract: A manually operable and steerable curb extrusion device for extruding curb, barrier, wall, gutter or the like from concrete, cement or some other moldable building material. The curb extrusion device has a hopper into which building materials are placed to fall onto a reciprocating orbital compaction member which compacts, kneads, and forces the building material through an open ended extrusion mold where it is shaped before extrusion.Type: GrantFiled: March 10, 1995Date of Patent: June 18, 1996Assignee: Paul G. McKinnonInventor: Paul G. McKinnon