Rigid Deflector Fixed To Chamber Wall Patents (Class 366/57)
  • Patent number: 10843379
    Abstract: A mixing drum includes a body defining a head aperture and a discharge aperture opposite the head aperture, a head coupled to the body and extending across the head aperture, a bearing member coupled to the body and defining a bearing surface surrounding the body, and a mixing element positioned within the volume and coupled to the body. The head and the body define a volume configured to contain a fluid mixture. The mixing element is configured to drive the fluid mixture toward the head when the drum is rotated in a first direction. The mixing element is configured to drive the fluid mixture towards the discharge aperture when the mixing drum is rotated in a second direction opposite the first direction. The head is made from a first material, and the body is made from a second material having a lesser density than the first material.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: November 24, 2020
    Assignee: Oshkosh Corporation
    Inventors: Josh Rocholl, Terry Tucke, Bryan Datema, Thomas Harris, Jillian Steffek, Bob Hathaway, Chadwick Johnson
  • Patent number: 10246851
    Abstract: A hydrovac having a chassis, a mud tank and water tank assembly mounted on the chassis, a hydraulic lift assembly capable of raising the mud tank and water tank assembly through a dump angle, the mud tank having a floor, and the floor of the mud tank deepens forwardly. A belt drive is provided for a blower of the hydrovac, along with belt tensioning system.
    Type: Grant
    Filed: June 6, 2017
    Date of Patent: April 2, 2019
    Inventor: Robert Carl Rajewski
  • Patent number: 9144777
    Abstract: An apparatus is provided that is configured for attachment to an aerosol can to permit mixing of contents therein. The apparatus includes a generally flat base portion coupled to a drive shaft orthogonally oriented relative to the base portion, and a securing strap attached to the base portion. The securing strap is configured to engage or grip a cylindrical end portion of an aerosol can to secure the aerosol can to the apparatus, whereby the drive shaft is configured to be mounted within a drill chuck to permit the mixing apparatus to rotate an aerosol can attached thereto for mixing contents within the aerosol can.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: September 29, 2015
    Inventor: Nicholas Joseph Brawley
  • Patent number: 9010987
    Abstract: A method of mixing together liquids or liquid/solid combinations, and mixing apparatus/universal combine utilizing a vertical spinning container or vessel having a rib, or a cross rib in its bottom wall. The container is spun about a vertical axis with no wobbling component to the motion. Meshed elements are used for high shear mixing. Start/stop routines, and variable acceleration/speed values are used, to facilitate complete mixing. Use of ‘impeller’ blade stirrers is completely eliminated.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: April 21, 2015
    Inventors: Yury Sherman, Michael Sherman, Ilya Alexandrov, Ramkumur Krishnan
  • Publication number: 20140254301
    Abstract: A batch mixer for mixing concrete materials into a mixed concrete includes a mixing drum having a plurality of paddles fixed to the drum for rotation with the mixing drum about the longitudinal axis of the mixing drum. The paddles include mixing paddles oriented to urge the concrete materials away from the outlet opening at the second end of the drum when the mixing drum is rotated in the mixing direction, and at least one shearing paddle which is oriented at less than 25 degrees from the longitudinal direction of the mixing drum. The shearing paddles has a main body portion interrupted by shearing apertures through which concrete material are directed and an inner edge which is discontinuous and interrupted by longitudinally spaced teeth.
    Type: Application
    Filed: March 7, 2013
    Publication date: September 11, 2014
    Inventor: Mark E. Wallgren
  • Patent number: 8162529
    Abstract: A rotary concrete mixing drum (16) includes an interior surface (74) at least partially provided by a polymer (90) impregnated with a slip agent.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: April 24, 2012
    Assignee: McNeilus Truck and Manufacturing, Inc.
    Inventors: Anthony J. Khouri, William Rodgers, William Tippins
  • Patent number: 8132528
    Abstract: Described is a rotary pan (1) of the type comprising a central hollow cylindrical body (3) with end portions (4, 4?) shaped substantially like truncated cones, and mixing/deflecting means (7) attached to at least one inside surface of the pan (1) itself; the peripheral inside cylindrical surface (5) of the hollow body (3) comprises an extended zone (A) defined by a uniform distribution of through holes (6) and at least one zone (B) within the zone (A) forming an area by which the mixing/deflecting means (7) are attached or fixed to the peripheral surface (5).
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: March 13, 2012
    Assignee: I.M.A. Industria Macchine Automatiche S.p.A.
    Inventors: Nicola Gandolfi, Roberto Trebbi
  • Patent number: 8070348
    Abstract: A concrete mixing drum includes a wall having at least one projection (32a, 32b) integrally formed as part of a unitary body with the wall. The at least one projection extends from the inner surface of the wall and includes a tapered base region proximate the inner surface of the wall.
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: December 6, 2011
    Inventor: Anthony J. Khouri
  • Patent number: 8070349
    Abstract: A concrete mixing drum includes a wall having a first section (41) and a second section (43). The first section (41) extends in a spiral along an axial centerline (31) of the drum. The second section (43) extends in a spiral along the axial centerline (31) of the drum adjacent to the first section (41).
    Type: Grant
    Filed: August 15, 2003
    Date of Patent: December 6, 2011
    Inventor: Anthony J. Khouri
  • Patent number: 7987773
    Abstract: A churn for processing food products, comprising a rotating drum with an opening for loading and unloading the products, further comprising a hatch provided with elements for detachable coupling to the opening of the drum and comprising ports adapted to allow the outflow of water deposited on the bottom of the drum, elements being provided which are adapted to arrange themselves selectively in a position for opening and closing the ports.
    Type: Grant
    Filed: February 4, 2008
    Date of Patent: August 2, 2011
    Assignee: Inox Meccanica S.R.L.
    Inventor: Giovanni Bolzacchini
  • Publication number: 20080291771
    Abstract: A rotary concrete mixing drum (16) includes an interior surface (74) at least partially provided by a polymer (90) impregnated with a slip agent.
    Type: Application
    Filed: June 29, 2004
    Publication date: November 27, 2008
    Inventors: Anthony J. Khouri, William Rodgers, William Tippins
  • Publication number: 20080259716
    Abstract: A concrete mixing drum includes a wall having at least one projection (32a, 32b) integrally formed as part of a unitary body with the wall. The at least one projection extends from the inner surface of the wall and includes a tapered base region proximate the inner surface of the wall.
    Type: Application
    Filed: August 15, 2003
    Publication date: October 23, 2008
    Applicants: McNeilus Truck and Manufacturing, Inc., Favco Composite Technology (US), Inc., Favco Truck Mixers International Pty Limited, Composite Technology R&D Pty Limited
    Inventor: Anthony J. Khouri
  • Publication number: 20080225632
    Abstract: A concrete mixing drum includes a wall having a first section (41) and a second section (43). The first section (41) extends in a spiral along an axial centerline (31) of the drum. The second section (43) extends in a spiral along the axial centerline (31) of the drum adjacent to the first section (41).
    Type: Application
    Filed: August 15, 2003
    Publication date: September 18, 2008
    Applicants: MCNEILUS TRUCK AND MANUFACTURING, INC., FAVCO COMPOSITE TECHNOLOGY (US), INC., FAVCO TRUCK MIXERS INTERNATIONAL PTY LIMITED, COMPOSITE TECHNOLOGY R & D PTY LIMITED, RODGERS, William
    Inventor: Anthony J. Khouri
  • Patent number: 7048429
    Abstract: In order to make good-quality concrete, a concrete mixer for mixing materials of concrete by rotation is provided so as to enhance fluidity of a mixture. A mounting frame 7 supporting a drum 2 of a concrete mixer 1 fixes a vibration device 25 via a mounting plate 21. A pair of arms 20 is integrally formed with both ends of the mounting plate 21, while rollers 24 rotationally supported by one ends of the arms 20 respectively contact the outer periphery of the drum 2. A vibration of the vibration device 25 is transmitted from the rollers 24 rotatably supported by the pair of arms 20 to the drum 2, so that the drum 2 vibrates while it rotates. Accordingly, a mixture is liquefied, and thus concrete having a good quality can be produced.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: May 23, 2006
    Assignee: Kabushiki Kaisha Asami Seisakusho
    Inventor: Kunio Asami
  • Patent number: 7048430
    Abstract: A hydraulic concrete mixer includes a drum (110) having a mixing blade (120) attached to an interior thereof, a frame (130) supporting the drum, an engine (140) mounted on the frame, and a drive train (150) extending through at least a portion of the drum. The drive train includes: a hydraulic motor (210); a first rigid plate (220) between the hydraulic motor and the drum; a second rigid plate (230) inside the drum and coupled to the first rigid plate such that a portion of the drum is held between and in fixed relationship to the first rigid plate and the second rigid plate; a first shaft (240) inside the drum and adjacent to the second rigid plate; a second shaft (250) adjacent to the first shaft; and a mounting plate (260) coupled to the second shaft.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: May 23, 2006
    Inventors: David L. Birmingham, Sr., David L. Birmingham, Jr.
  • Patent number: 6726351
    Abstract: The present invention is to a method and apparatus for changing the flighting (20) within a mixing drum (12). A plurality of radially spaced apart doors or paddles (30) are connected to one of the two adjacent supports (60). Each door or paddle (30) is pivotally connected (35,34) to the interior (13) of the drum (12) and can be either open or closed depending on which fixed support (60) the door/paddle is connected to.
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: April 27, 2004
    Assignee: Dillman Equipment, Inc.
    Inventor: Bruce A. Dillman
  • Patent number: 6350052
    Abstract: A new concrete mixing device for mixing concrete as a user moves the device along a ground surface. The inventive device includes a rolling drum with one of the ends of the rolling drum having an opening into the interior of the rolling drum. The device also includes a handle member having opposite first and second ends and a pair of arms. The arms are spaced apart from each other at the first end of the handle member. Each of the arms has a mounting pin extending therefrom that face one another. The rolling drum is interposed between the arms with each of the ends of the rolling drum rotationally mounted to an associated mounting pin to permit free rotation of the rolling drum. A pair of hand grips are extended from the second end of the handle member.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: February 26, 2002
    Inventor: Stephen K. Storz
  • Patent number: 5964225
    Abstract: A tobacco treatment system comprising a rotatable cylinder and a plurality of axially directed flights, with each flight having a forward side and a back side relative to the rotational motion of the cylinder, with both the forward and back sides being concave-open in a direction toward the interior of the cylinder.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: October 12, 1999
    Assignee: Philip Morris Incorporated
    Inventors: Robert S. Blackwell, Roger L. Honaker
  • Patent number: 5934800
    Abstract: A portable mixer and method include providing a support frame having wheels and an opposite handle, an outer drum having a rotational drive mounted on the support frame, a rotatable drum, and a removable mixing container held inside the rotatable drum. A pivot arm handle extends at least one meter from the outer drum center of gravity. At least two spaced apart top handles on the removable mixing container are positioned axially spaced apart from at least two spaced apart bottom grippers. A handle extends from the support frame a distance at least one meter from the wheels. A mixer blade promotes thorough mixing. A keyway groove secures the removable mixing container within the rotatable drum. The keyway groove also serves as the mixer blade. A sidewall key on the rotatable drum expands into and holds the removable mixing container. A lock-in insert on the rotatable drum expands into and holds the removable mixing container.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: August 10, 1999
    Inventor: Anthony S. Bonacci
  • Patent number: 5839824
    Abstract: A concrete mixer including a mixing shell and a void located therein for receiving material to form concrete. The concrete mixing mechanism having a first blade mechanism spatially orientated to have a pitch capable of moving at least a portion of the material in a first predetermined direction and a second blade mechanism spatially orientated to have a pitch capable of moving at least a portion of the material in a second predetermined direction.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: November 24, 1998
    Inventors: James A. Backman, Todd A. Sherbinow
  • Patent number: 5816702
    Abstract: A mixing vane is mounted interior of a drum having a plastic lining--preferably a vinyl lining. Preferably two mixing vanes covers a cylindrical solid angle of 240.degree. while 120.degree. remains unoccupied to permit convenient pouring of the contents from the barrel. The mixing vane is preferably constructed with a L-shaped section with the bottom of the "L" fitted to the interior of the lined drum and the vertical member of the "L" protruding outward from the barrel wall as the mixing vane. In the preferred embodiment, the vertical member of the "L" is disposed along a helical path to produce directional movement of the barrel contents during barrel rotation. Preferably, the mixing vane is injection molded from vinyl or polyethylene. In fastening to the sidewall of the 55 gallon, the mixing vane is softened at the bottom of the "L" by either placement in a vinyl solvent or heating to produce a sticky surface.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: October 6, 1998
    Assignee: North American Packaging (Pacific Rim) Corporation
    Inventors: Harry Mays, Michael Morrison
  • Patent number: 5772317
    Abstract: The counterflow drum mixer includes an elevated virgin aggregate inlet end and an opposite asphaltic product discharge end. A burner lies intermediate the ends and defines a combustion volume. Shield flights surround the combustion volume defining an annular chamber with the drum wall. Recycle material is supplied to the annular chamber at the upstream end of the combustion volume for heating by convection and conduction in the annular chamber. The virgin aggregate material flows through a drying zone, into the combustion volume and between the shield flights into the annular chamber for contact with and conductive heating of the recycle material. Radiant heat transfer from the combustion volume along radii of the drum to the annular chamber is prevented.
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: June 30, 1998
    Assignee: Gencor Industries, Inc.
    Inventor: Theodore G. Butler
  • Patent number: 5515620
    Abstract: An apparatus and method for operating a rotatable drying drum are disclosed herein. The drying drum has a burner for generating hot gases of combustion for flow through the drum to dry aggregate. The drum includes identical drying flights each having a generally U-shaped body having side walls extending from opposite edges of a base and terminating in first and second edges having different configurations and consequent different veiling effects in the dryer by securing the flights in one of a plurality of orientations within the drum. By reorienting the identical flights within the drying zone of the rotary drum dryer, the veiling patterns of the aggregate across the drum may be altered, hence adjusting the exhaust temperature.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: May 14, 1996
    Assignee: Gencor Industries, Inc.
    Inventor: Theodore G. Butler
  • Patent number: 5492499
    Abstract: A device for massaging a portion of meat, which device comprises a frame and a vessel supported in that frame and driven rotatably on a lying axis, said vessel has a longitudinal wall and two end walls, wherein agitation members are arranged in the vessel, wherein the inner side of the longitudinal wall of the vessel is provided with agitation members standing thereon, wherein the agitation members are formed by hollow bodies, the closing edge of which is situated outside the vessel, so providing an easy discharge and cleaning of the vessel, whereas the agitating members can be easily constructed.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: February 20, 1996
    Assignee: Stork Protecon-Langen B.V.
    Inventors: Lambertus F. W. Van Haren, Henricus W. Van Doorne
  • Patent number: 5470146
    Abstract: A drum mixer asphalt plant is provided with a rotatable cylinder 10 in which virgin aggregate, recycle material and liquid asphalt are mixed to produce an asphaltic composition and the hot gas stream for heating and drying the materials flow in countercurrent relation. In a first zone within the cylinder 10, aggregates are heated and dried by heat radiation and a hot gas stream generated at a burner head 46 of a combustion assembly 40. In a second zone within the drum cylinder 10 isolated from the burner flame and hot gas stream by the combustion assembly 40, liquid asphalt is sprayed from an injection tube 76 to mix with aggregate materials. A recycle feed assembly 60 delivers recycle asphalt material to the second zone also for mixing with the aggregate and liquid asphalt.
    Type: Grant
    Filed: December 27, 1991
    Date of Patent: November 28, 1995
    Assignee: Standard Havens, Inc.
    Inventor: Michael R. Hawkins
  • Patent number: 5429434
    Abstract: A horizontal drum concrete batch mixer comprising a cylindrical mixer drum which may be rotated in a mixing direction or a discharge direction. The interior of the drum has mixing blades provided thereon for mixing the concrete when the drum is rotated in its mixing direction. The interior of the drum is also provided with transfer blades which transfer the mixed concrete from the inlet end of the drum to the discharge end of the drum when the drum is rotated in its discharge direction. A discharge chute is movably positioned in the discharge opening formed in the discharge of the drum and is movable from a discharge position to a mixing position. A plurality of spaced-apart discharge blades are secured to the interior of the drum adjacent the discharge end thereof for delivering the mixed material into the discharge chute when the discharge chute is in its discharge position and the drum is rotated in its discharge direction.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: July 4, 1995
    Inventor: Robert C. Milek
  • Patent number: 5403085
    Abstract: In an apparatus for heating and mixing a particulate material composition, an elongated drum is supported for rotation on a frame and hot gases are supplied to the drum at an output end of the drum and directed toward an input end. An outer shell encircles the drum adjacent the output end and defines an outer mixing chamber between the drum and the shell. A first particulate material is introduced into the drum adjacent the input end, is conveyed toward the output end, and is diverted into the mixing chamber. A second particulate material is introduced into the outer mixing chamber and is heated to an output temperature during mixing with the first material. Thereafter, the mixed materials are delivered from the outer mixing chamber and from the apparatus.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: April 4, 1995
    Assignee: Tarmac Industries, Inc.
    Inventor: Edgar N. Banks
  • Patent number: 5380085
    Abstract: A horizontal drum concrete batch mixer comprising a cylindrical mixer drum which may be rotated in a mixing direction or a discharge direction. The interior of the drum has mixing blades provided thereon for mixing the concrete when the drum is rotated in its mixing direction. The interior of the drum is also provided with transfer blades which transfer the mixed concrete from the inlet end of the drum to the discharge end of the drum when the drum is rotated in its discharge direction. A discharge chute is movably positioned in the discharge opening formed in the discharge of the drum and is movable from a discharge position to a mixing position. A plurality of spaced-apart discharge blades are secured to the interior of the drum adjacent the discharge end thereof for delivering the mixed material into the discharge chute when the discharge chute is in its discharge position and the drum is rotated in its discharge direction.
    Type: Grant
    Filed: April 12, 1994
    Date of Patent: January 10, 1995
    Inventor: Robert C. Milek
  • Patent number: 5320248
    Abstract: The mixing bucket and integral mold (10) has frustoconical walls (12), a bottom wall (14), a bottom rim (32) and top rim (24). A lid (16) closes and seals the bucket. A bail (28) is provided for lifting and carrying the bucket. A flange (38) that is integral with the bottom wall (14) and inside the bottom rim (32) reinforces and supports the bottom wall and forms a mold cavity (36). Agitators (60) each of which has a base, an integral post (68) and agitation surfaces (72) are attached to the inside surface of the frustoconical walls (12) along two helixes (62,64). The agitation surfaces are shaped and oriented to agitate and mix material when the bucket is rolled on its side walls (12). The agitation surfaces can be shaped and oriented to merely divide the material being mixed, to move material toward the lid (16), to move material toward the bottom wall (14), to move material radially inward toward the central axis (18) or to move material radially outward toward the side walls (12).
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: June 14, 1994
    Inventor: Hugh V. Jamieson, III
  • Patent number: 5302017
    Abstract: A mixing drum unit for mixing a plastic resin and an aggregate includes a metal support drum and a plastic liner resting in the drum. An outer cover is secured to the drum overlying the outer end of the liner. The liner includes a cylindrical portion telescoped into the drum extending outwardly to an outer frustoconical portion having an outer end opening. The liner has a V-shaped shallow base which promotes mixing and ease of cleaning. The drum and liner include telescoping drive paddles which extend axially throughout the liner and project radially for coupling. The liner drive paddles extend into the outer frustoconical liner portion. The liner paddles have a radial wall and an inclined wall with an inner apex. The paddles are asymmetrically arranged about the drum and liner with at least one paddle spaced asymmetrically between the two adjacent paddles. The drum paddle is a metal plate projecting radially into the triangular liner paddle for direct coupling therebetween.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: April 12, 1994
    Assignee: Construction Forms, Inc.
    Inventors: Raymond C. Platek, Robert W. Cramer
  • Patent number: 5261738
    Abstract: A drum mixer which is useful in the continuous production of asphalt paving composition. The mixer includes a hollow drum which is mounted for rotation about an inclined axis, and the aggregate is introduced into the upper end of the drum so that as the drum rotates, the aggregate cascades through the interior of the drum and moves toward a discharge outlet at the lower end of the drum. A burner is mounted adjacent one end of the drum so that a heated gas passes through cascading aggregate. To permit the temperature of the exhaust gas to be maintained within acceptable limits so as to avoid detrimental effects to a downstream filtering baghouse, a gas flow bypass system is mounted in the downstream end portion of the drum.
    Type: Grant
    Filed: September 25, 1992
    Date of Patent: November 16, 1993
    Assignee: Astec Industries, Inc.
    Inventor: J. Donald Brock
  • Patent number: 5259300
    Abstract: A stirrer in the form of a stripe is installed on an inner wall of a cylindrical pot of food stirring apparatus, a width of a scrape-up surface is formed to be narrower from an opening side of the cylindrical pot toward a bottom thereof, and a projection is provided on an outer edge side of the scrape-up surface.In the food stirring and cooking apparatus which rotatably supports the cylindrical pot in which a stirrer is provided on the inner wall thereof, not only rotational operation along the edge of the cylindrical pot but also longitudinal rotational operation from the opening side of the pot to the bottom and from the bottom to the opening side are applied to food so that the food is turned and stirred whereby increasing the food stirring effect.When the cylindrical pot is rotated, the food put into the cylindrical pot moves in the direction reversed to the rotational direction of the pot due to its own weight and is scraped up by the stirrer.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: November 9, 1993
    Assignee: Sango Co., Ltd.
    Inventor: Kenji Yajima
  • Patent number: 5118198
    Abstract: An improved cement mixer having polyethylene cement mixing drum (20) held and supported by a cradle arm assembly (21) formed of cradle base support braces (23) and upright cradle arms (22) which interfit into crandle arm recesses (27) which are preformed with polyethylene drum (20). A bull gear (25) is provided and circumvolves polyethylene drum (20). Bull gear (25) is aligned with and attached to cradle arms (22) and drum (20) so they dual function both as a drive mechanism for rotating drum (20) and as a structural member for cradle assembly (21).
    Type: Grant
    Filed: June 7, 1990
    Date of Patent: June 2, 1992
    Inventor: Marvin E. Whiteman, Jr.
  • Patent number: 5073030
    Abstract: In a dryer apparatus including an elongated rotatable drum having an input end and an output end, a burner for directing hot gases into the input end of the drum, and an aggregate feed mechanism for supplying aggregate particles into the drum adjacent the input end and for conveying the aggregate particles toward the output end, an assembly adapted to introduce reclaimed asphalt pavement particles into the dryer includes an inner drum for introducing reclaimed asphalt pavement particles into the elongated drum at a position adjacent the output end of the elongated drum and for moving the recycled asphalt pavement particles within the elongated drum in a direction counter to the direction of flow of the hot gases so that the hot gases heat the recycled asphalt pavement particles during travel of the recycled asphalt pavement particles within the inner drum assembly.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: December 17, 1991
    Inventor: Edgar N. Banks
  • Patent number: 5054931
    Abstract: A counterflow drum mixer producing less undesirable hydrocarbon gases and capable of more efficiently drying virgin aggregate. The drum mixer has a rotatable drum with first end receiving virgin aggregate and second end removing combined aggregate, reclaimed paving material, and mixed liquid asphalt. A burner projects into the drum from the outlet end and directs hot gases toward the inlet end. A reclaimed asphalt pavement inlet and a liquid asphalt inlet are located within the drum at a point isolated from the hot gases produced by the burner by a burner shield. When the drum mixer is operating, virgin aggregate moves down the drum toward the outlet counterflow to the drying hot gases projected toward the aggregate inlet by the burner. Reclaimed asphalt pavement is entered into the drum at a point behind the burner shield downstream (with respect to the flow of material) from the burner head producing the hot gases and is not exposed directly to those gases.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: October 8, 1991
    Assignee: Barber-Greene Co.
    Inventors: Robert E. Farnham, Fredric W. Prill
  • Patent number: 5033863
    Abstract: Flights in drums of drying and mixing apparatus are attached with bolts held by bolt cages disposed on inner surfaces of the drums. The bolt cages are formed of channels, the channel openings of which face the inner surface of the drums, and which channels have longitudinal slots extending from ends of the channels into the bases thereof for receiving the shanks of bolts. The bases or base plates are consequently spaced by side walls of the channels from the inner surfaces of the drums, the depth of the channels being such to admit the height of a head of a bolt between the inner surface of the drums and adjacent and facing surfaces of the bases of the channel type cages. The side walls of the cages extend parallel to the slots and are spaced to slidingly accept the width of the head of a bolt across opposite parallel faces of such bolt. The spacing between the sidewalls thereby prevents the rotation of a caged bolt about its longitudinal axis as a result of a nut being torqued onto its shank.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: July 23, 1991
    Assignee: Cedarapids, Inc.
    Inventor: Don R. Linkletter
  • Patent number: 4973167
    Abstract: Apparatus for mixing cement, aggregate and water to form concrete includes a drum having an axis, an interior face and an exterior face; apparatus for rotating the drum; and a plurality of vanes for directing the associated cement, aggregate and water to provide thorough mixing, the vanes being disposed in a plurality of columns extending generally parallel to the axis of the drum, at least some of the vanes being disposed to direct flow of the associated cement, aggregate and water in first direction and at least some other of the vanes being directed to direct flow of the associated cement, aggregate and water in a second direction which is opposite to the first direction. The drum has first and second open ends and the ends are each substantially in the form of a truncated cone. The axis of the apparatus is substantially horizontal throughout all operations of the apparatus.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: November 27, 1990
    Inventor: Hieronim Zmarlicki
  • Patent number: 4963032
    Abstract: An improved tiltable rotating concrete mixing drum has a relatively flat rear conical charging zone, a front conical zone having a central discharge opening for discharging materials when mixed and a generally cylindrical central zone disposed between front and rear conical zones in which the overall length-to-diameter ratio is reduced. The improved mixing drum has two sets of mixing blades, one in the central or mixing zone and one in the front or discharge zone which is scoop-shaped and configured to increase the efficiency of mixing along the horizontal axis of the drum by increasing the overall mixing efficiency.
    Type: Grant
    Filed: February 22, 1990
    Date of Patent: October 16, 1990
    Assignee: McNeilus Truck and Manufacturing, Inc.
    Inventor: Robert W. Strehlow
  • Patent number: 4940334
    Abstract: A reverse flow post-mixer attachment for direct-fixed asphaltic concrete mixers includes a modified discharge box for the downstream end of the drum and an enclosure for the downstream portion of the drum forming a passage along the exterior of the drum. If the smoke point of the liquid asphalt to be added to the material in the drum meets an established standard it is injected into the material upstream of the downstream end of the drum and discharged from the latter end in the normal manner. If the smoke point of the asphalt does not meet the standard, the material exiting the drum is diverted into the passage along the exterior of the drum and the asphalt added there out of the burner stream in the durm. The material and asphalt are then mixed and moved through the passage and finally discharged.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: July 10, 1990
    Assignee: Cedarapids, Inc.
    Inventor: Joseph E. Musil
  • Patent number: 4813784
    Abstract: A reverse flow post-mixer attachment for direct-fixed asphaltic concrete mixers includes a modified discharge box for the downstream end of the drum and an enclosure for the downstream portion of the drum forming a passage along the exterior of the drum. If the smoke point of the liquid asphalt to be added to the material in the drum meets an established standard it is injected into the material upstream of the downstream end of the drum and discharged from the latter end in the normal manner. If the smoke point of the asphalt does not meet the standard, the material exiting the drum is diverted into the passage along the exterior of the drum and the asphalt added there out of the burner stream in the drum. The material and asphalt are then mixed and moved through the passage and finally discharged.
    Type: Grant
    Filed: August 25, 1987
    Date of Patent: March 21, 1989
    Inventor: Joseph E. Musil
  • Patent number: 4802139
    Abstract: Disclosed are a method of and an apparatus for producing a heated reproduction asphalt mixture, in which a new material and a normal-temperature waste material, the water content of which is set at a limited range of values, are adapted to be mixed together in the ratio of (90 to 40):(10 to 60) in terms of weight. The temperature of heating the new material by means of a dryer is controlled to range from 190.degree. C. to 350.degree. C. so as to be in conformity with the above mixing weight ratio. Both the materials are mixed and kneaded together in a mixer at a kneading temperature of 150.degree. C. or more. The gas generated within the mixer is exhausted toward a chimney in a state wherein the amount exhausted is made adjustable.
    Type: Grant
    Filed: August 21, 1987
    Date of Patent: January 31, 1989
    Assignee: Taisei Road Construction Co., Ltd.
    Inventor: Hideo Sasaki
  • Patent number: 4756623
    Abstract: A collapsible mixing drum is provided in which two similarly contoured, frustoconical members, one of which is open and the other closed at the small end, and both of which are provided with a plurality of circumferentially spaced and inwardly offset stiffening and mixing ribs, terminating in radial wall portions at the large ends of the frustoconical members, the radial wall portions having aligned apertures to receive axially oriented fasteners, are detachably joined together through clamping engagement with an annular ring member having on opposed radial surfaces thereof aligned grooves for sealably receiving circumferential edges of the large ends of the frustoconical members, and the outer surface of the ring member being contoured to provide a circumferential groove, gear teeth, or a combination thereof to facilitate rotational support and/or rotational driving of the assembled drum.
    Type: Grant
    Filed: November 14, 1986
    Date of Patent: July 12, 1988
    Inventor: Robert J. Bishop
  • Patent number: 4634284
    Abstract: A hand-operated mixing device is provided in which a mixing drum, having an open end, a closed end and divergently tapered circumferential walls extending from the ends to an enlarged diameter portion intermediate the ends, an annular groove at the outer periphery of the enlarged diameter portion, and the closed end having a detachably mounted crank member terminating in a bearing shaft coaxial with the drum axis, the drum being detachably mounted on a light-weight frame having at the forward portion thereof transversely spaced rollers for engagement with the annular groove, and at the rear portion thereof a bearing orifice detachably receiving the bearing shaft of the crank handle, the positioning of the rollers and bearing orifice being such as to orient the drum axis at an angle of about 10-20" to the horizontal to thereby elevate the open end of the drum, the light-weight frame being of knockdown construction having parts of such dimension as to permit packing when disassembled in a container adapted to c
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: January 6, 1987
    Inventor: Robert J. Bishop
  • Patent number: 4597026
    Abstract: In an X-ray generator system having a pulse-width-modulated transistor inverter with associated flywheel diodes, method and apparatus is provided to sense when a diode associated with a non-pulse-width-modulated transistor is conducting and for inhibiting the turning on of that transistor during such period, to thereby avoid the transition from reverse conduction to direct conduction in an uncontrolled manner.
    Type: Grant
    Filed: December 22, 1983
    Date of Patent: June 24, 1986
    Assignee: General Electric Company
    Inventors: Carlos M. Santurtun, Felix L. Ceca, Jose M. Quevedo Bengoechea
  • Patent number: 4525070
    Abstract: A mixing apparatus for dry or wet ingredients is disclosed, which comprises an upwardly inclined trackway, and a mixing container mounted for rolling movement along the trackway. The trackway includes a scale at the lower end which permits the container and its contents to be weighed, and so that predetermined amounts of a number of ingredients may be loaded into the container. A power system is provided for pulling the container upwardly along the trackway, and such that the container is subjected to a rotary motion for mixing the ingredients, and a simultaneous linear transport to an elevated position. The container includes unique internal mixing vanes which facilitate mixing of the ingredients during rotation of the container, and which also permit substantially all of the mixed ingredients to be freely discharged by gravity at the elevated discharge location.
    Type: Grant
    Filed: April 8, 1983
    Date of Patent: June 25, 1985
    Inventor: Tatum W. Gressette, Jr.
  • Patent number: 4522498
    Abstract: An apparatus for recycling asphaltic concrete comprises an elongated rotatable drum in which composition is introduced at a first end and recovered at the opposite second end, and having a burner extending into the drum so that the burner nozzle is located within the drum intermediate the first and second ends and directs the hot gases toward the first end, and wherein the portion of the drum between the burner and the first end is provided with lifters of a type which prevent the formation of a veil of composition particles from falling through the hot gases of combustion as the drum is rotated, and a second portion between the burner nozzle and the second drum end and which is provided with lifters which cause a veil of composition particles to pass through hot gases of combustion as the drum rotates.
    Type: Grant
    Filed: April 14, 1980
    Date of Patent: June 11, 1985
    Inventor: Robert L. Mendehall
  • Patent number: 4521116
    Abstract: Improved apparatus for mixing concrete or the like is described and includes a support frame, a rotational drive mounted to the frame, a drum liner support rotatably connected to the rotational drive and a drum liner connected to and supported by the drum liner support and comprising a container having one open end for receiving therewithin the material to be mixed.
    Type: Grant
    Filed: June 1, 1984
    Date of Patent: June 4, 1985
    Assignee: Gordon W. Orthner
    Inventor: Gordon H. Adsit
  • Patent number: 4491415
    Abstract: A light weight, inexpensive rotary drum mixing device is provided in which an essentially pear shaped drum, open at the small end and having an axially elongated socket at the large end, is rotatably supported on a unitary base having a transversely extended forward end and an upwardly and angularly extending rear end providing a bearing portion detachably engageable with said socket to rotatably support the drum at an inclination of about 35.degree., readily engageable means on the bearing portion and socket for preventing unintended axial movement, the forward end of the frame being slightly forward of the center of gravity of the rotatably supported drum to firmly support the same as drum contents are being mixed by rotation of the drum, and providing a pivot fulcrum for tilting the assemblage to discharge contents of the drum, and groove means adjacent the large end of the drum facilitating application of circumferential force to impart controlled rotation to the drum.
    Type: Grant
    Filed: March 5, 1984
    Date of Patent: January 1, 1985
    Inventor: Robert J. Bishop
  • Patent number: 4480922
    Abstract: An improved recycling apparatus for particulate asphaltic concrete comprises a rotatable drum in which the particulate composition is gradually heated between an input end and an output end having a retractable chute extending into a port at the output end for recovering composition of a selected temperature. The chute contains a temperature sensing device, and the apparatus preferably includes a drive means for inserting or retracting the chute, and thermostat means for selecting a product temperature whereby the drive means causes the chute to be extended into the drum to recover the composition of a selected temperature. In another embodiment, the drum includes first, second, and third lifters each extending along different respective lengths of the drum interior to achieve different exposure of the particulate composition to the heating gases in the drum in the respective different drum sections to achieve improved heating and mixing efficiency.
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: November 6, 1984
    Inventor: Robert L. Mendenhall
  • Patent number: RE32043
    Abstract: A portable concrete mixing and transport device comprises a trailer having wheels and a drum supported above the wheels, said drum being movable into and out of engagement with the wheels. Concrete mix carried in the drum is agitated by pulling the trailer with the drum in contact with the wheels, causing the drum to rotate. The drum may be tilted to allow pouring of the mix. The device allows for convenient and inexpensive transport and mixing of small quantities of concrete.
    Type: Grant
    Filed: August 15, 1984
    Date of Patent: December 3, 1985
    Inventor: Edwin J. Routson