US3820914A - Self contained mobile asphalt mixing and applying apparatus - Google Patents

Self contained mobile asphalt mixing and applying apparatus Download PDF

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Publication number
US3820914A
US3820914A US00288987A US28898772A US3820914A US 3820914 A US3820914 A US 3820914A US 00288987 A US00288987 A US 00288987A US 28898772 A US28898772 A US 28898772A US 3820914 A US3820914 A US 3820914A
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United States
Prior art keywords
aggregates
disposed
bituminous concrete
drum
conveyor
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Expired - Lifetime
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US00288987A
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English (en)
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H Zimmerman
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Barber Greene Co
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Individual
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Priority to US00288987A priority Critical patent/US3820914A/en
Priority to ZA735958A priority patent/ZA735958B/xx
Priority to CA179,979A priority patent/CA987665A/en
Priority to GB4191973A priority patent/GB1442829A/en
Priority to IT2884673A priority patent/IT993228B/it
Priority to BR7090/73A priority patent/BR7307090D0/pt
Priority to FR7332944A priority patent/FR2200409A1/fr
Priority to DE19732346212 priority patent/DE2346212A1/de
Priority to JP48103344A priority patent/JPS4965628A/ja
Priority to AU69189/74A priority patent/AU478692B2/en
Priority to CH734474A priority patent/CH593391A5/fr
Priority to BE6044614A priority patent/BE815770A/xx
Publication of US3820914A publication Critical patent/US3820914A/en
Application granted granted Critical
Priority to KE2778A priority patent/KE2778A/xx
Priority to HK437/77A priority patent/HK43777A/xx
Priority to MY7700312A priority patent/MY7700312A/xx
Assigned to M & I MARSHALL & ILSELEY BANK, NORTHWESTERN MUTUAL LIFE INSURANCECOMPANY, AND FIRST CHICAGO LEASING CORPORATION reassignment M & I MARSHALL & ILSELEY BANK, NORTHWESTERN MUTUAL LIFE INSURANCECOMPANY, AND FIRST CHICAGO LEASING CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BARBER-GREENE COMPANY
Assigned to BARBER-GREENE COMPANY reassignment BARBER-GREENE COMPANY RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: FIRST NATIONAL BANK OF CHICAGO AS AGENT FOR SEE DOCUMENT FORNAMES
Assigned to BARBER-GREENE COMPANY, A DE. CORP. reassignment BARBER-GREENE COMPANY, A DE. CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: B.V. OCEANIC FINANCE COMPANY
Assigned to FIRST AMERICAN NATIONAL BANK OF NASHVILLE reassignment FIRST AMERICAN NATIONAL BANK OF NASHVILLE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BARBER-GREENE COMPANY, A CORP. OF DE.
Assigned to FIRST NATIONAL BANK OF CHICAGO, THE reassignment FIRST NATIONAL BANK OF CHICAGO, THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). 4-27-89 Assignors: BARBER-GREENE COMPANY, ROADTEC, INC., TELSMITH, INC., TRENCOR JETCO, INC.
Anticipated expiration legal-status Critical
Assigned to BARBER-GREENE COMPANY reassignment BARBER-GREENE COMPANY RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CITIZENS AND SOUTHERN TRUST COMPANY (GEORGIA) N.A., AS SECURITY TRUSTEE FOR THE BENEFIT OF FIRST NATIONAL BANK OF CHICAGO, THE ; SEE DOCUMENT FOR OTHER ASSIGNORS.
Assigned to FIRST NATIONAL BANK OF CHICAGO, THE, CITIZENS AND SOUTHERN TRUST COMPANY (GEORGIA) reassignment FIRST NATIONAL BANK OF CHICAGO, THE AMENDMENT TO A PREVIOUSLY RECORDED SECURITY AGREEMENT DATED APRIL 27, 1989; SEE RECORD FOR DETAILS. Assignors: BARBER-GREENE COMPANY, ROADTEC, INC., TRENCOR JETCO, INC.
Assigned to ASTEC INDUSTRIES, INC., FIRST NATIONAL BANK OF CHICAGO, N.A., THE reassignment ASTEC INDUSTRIES, INC. TERMINATION & RELEASE OF SECURITY INTEREST IN PATENTS Assignors: NATIONSBANK OF GEORGIA, N.A. (F/K/A CITIZENS AND SOUTHERN TRUST COMPANY, N.A.)
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
    • E01C19/1068—Supplying or proportioning the ingredients
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/002—Apparatus for preparing and placing the materials and for consolidating or finishing the paving
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/1027—Mixing in a rotary receptacle
    • E01C19/1031—Mixing in a rotary receptacle the mixture being discharged continuously
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/104—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • E01C19/488—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with rollers for consolidating or finishing combined with tamping, vibrating, pressing or smoothing consolidation or finishing means
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C2019/1081—Details not otherwise provided for
    • E01C2019/109—Mixing containers having a counter flow drum, i.e. the flow of material is opposite to the gas flow

Definitions

  • ABSTRACT A bituminous concrete mixing and applying apparatus is disclosed which is constructed in an entirely selfcontained and mobile fashion whereby bituminous concrete can be mixed and applied at the job site.
  • the apparatus comprises an elongated mobile frame, such as a truck frame, upon which storage compartments are disposed for separately storing aggregates such as sand, stone, gravel, and the like, as well as liquid bitumens, such as asphalt, tar, or the like.
  • a conveyor means is provided beneath the storage compartments for the aggregates for conveying such aggregates out from the storage compartment through a metering device and into a heating and drying mechanism whereat the aggregates are heated, dried and agitated.
  • the dry aggregates as well as the liquid bitumens which similarly have been heated are discharged into a discharge mechanism or hopper assembly disposed on the mobile frame. whereat bituminous concrete is formed.
  • This bituminous concrete is applied to an underlying road surface to provide a covering commonly termed macadam, blacktop, or asphalt, by means of a spreader mechanism which, in the preferred inventive embodiment, constitutes a heating chamber, a plurality of spreading auger conveyors, a vibrator, and a roller compactor.
  • the instant invention constitutes a mobile bituminous concrete plant which can be sent directly to a job site to mix and apply the bituminous concrete.
  • Bituminous concrete as this technical term is utilized herein, relates to a resilient road surfacing material commonly designated macadam, blacktop,-or asphalt, as distinguished from rigid Portland cement, concrete road surfaces having a Portland cement binder.
  • bituminous concrete is then loaded on the back of a pick-up truck or other similar vehicle and then send a crew consisting of a number of men out to the road location whereat the repair is desired.
  • the bituminous concrete is then physically shoveled into the hole or crack in the roadway to form a repair, the bituminous concrete subsequently being manually tamped into place to complete the repair.
  • a pre-mixed bituminous concrete batch that is taken out to the repair job may be of the same high quality and/or consistency as bituminous concrete actually mixed at the job site.
  • Still another objective of the instant invention is the provision of a novel improved bituminous concrete mixing and applying apparatus by which quality repair of roadways can be achieved at low cost.
  • the apparatus is disposed upon a mobile frame, such as a truck, and incorporates a plurality of separate compartments for separately storing the aggregates and liquid ingredients of a bituminous concrete mix.
  • a mobile frame such as a truck
  • separate compartments are provided for the storage of fine and coarse aggregates, as well as for the storage of liquid bitumen, such as asphalt itself.
  • the aggregates are removed from the storage compartments therefor at the job site through metering gates or the like which ensures a predetermined amount and ratio of the aggregates.
  • the aggregates are then conveyed to a heating and drying mechanism also disposed on the mobile frame, which mechanism in the preferred inventive embodiment constitutes a rotatable heating and drying drum.
  • the aggregates are dried and are raised to a temperature of approximately 400 F. in the rotating drum mechanism and are dropped into a hopper containing a further metering mechanism from which the ingredients are discharged into a pug mill type mixing conveyor.
  • a liquid bitumen is added to the mixing conveyor, the bitumen being separately maintained in a separate storage compartment which may be heated.
  • the amount of dry aggregates vis-a-vis the liquid bitumen is carefully controlled by means of the metering mechanism associated with the hopper and by means of a bitumen metering device. In this fashion, bituminous concrete is provided having controlled consistency and quality.
  • the bituminous concrete i.e., the mixture of the aggregates and the bitumen, is then fed into a spreader mechanism preferably carried behind the mobile frame by which the bituminous concrete is applied to the surface of an underlying roadway.
  • the spreader mechanism constitutes a forwardly disposed heating chamber so as to heat the underlying road surface thereby assuring good adhesion for the bituminous concrete.
  • a plurality of auger conveyors are also provided for evenly distributing the bituminous concrete over the underlying and heated surface.
  • the distributed bituminous concrete is then settled by means of a vibrating mechanism and finally is compacted by a roller rearwardly disposed on the spreading mechanism.
  • the combination bituminous concrete mixing and spreading apparatus generally described above separately stores all the ingredients of the bituminous concrete so that the problems associated with premature hardening of a pre-mixed batch are entirely eliminated. Further, a predetermined amount of bituminous concrete having a controlled consistency and quality is mixed at the job site through the utilization of the apparatus of the instant invention, therefore eliminating the prior art problems of predetermining the amount of bituminous concrete that will be needed for any given job.
  • the repair effected by the machine of the instant invention can utilize the hot technique even during winter months and, importantly, operation of the apparatus of the instant invention can be effected by one man, if so desired.
  • FIG. 1 is a side elevational view of a truck constructed to incorporate the self-contained bituminous concrete mixing apparatus of the instant invention
  • FIG. 2 is a top plan view of the bituminous concrete apparatus of FIG. 1;
  • FIG. 3 is a side elevational view of the apparatus of FIG. 1 partially broken away and in cross-section for illustrative clarity;
  • FIG. 4 is a front elevational view of the apparatus of FIG. 3 takenalong lines 44 thereof;
  • FIG. 5 is an elevational view in section of the apparadepicted in FIGS. 1 and 3 of the drawings.
  • FIG. 9 is an elevational view, in section for clarity, of thelauger or spreading conveyor of the bituminous concrete spreading apparatus depicted in FIG. 8, taken along lines 99 thereof.
  • the bituminous concrete apparatus comprises a first storage means generally designated by the reference numeral 24 for storing coarse and fine aggregates such as sand and gravel, and a second storage means generally designated by reference numeral 26 for storing liquid bitumen, such as liquid asphalt or tar.
  • the aggregates within the first storage means 24 are removedand dispensed therefrom through a first metering means generally designated by reference numeral 28 (see FIG.
  • a conveyor mechanism having a first substantially horizontal section generally designated by reference numeral 30 and a second substantially vertical section generally designated by reference numeral 32, into a heating and drying means generally designated by reference numeral 34 wherein the aggregates are dried and are raised to an elevated temperature and transported towards the rear or left-hand side of the apparatus as viewed in FIGS. 1 and 3.
  • the aggregates are then dispensed into a hopper generally designated by reference numeral 36 containing a further metering mechanism from which the aggregates are discharged into a pug mill type mixing means 116 118 into which the bitumen is likewise metered so as to form bituminous concrete therein of controlled quality and consistency.
  • bituminous concrete so formed is then discharged into a spreading means generally designated by reference numeral 38 disposed rearwardly of the mobile frame, spreading means 38 depositing the bituminous concrete onto the surface of the underlying roadway so as to effect a proper repair of the roadway.
  • the first storage means generally designated by reference numeral 24 comprises a plurality of separate compartments such as compartments 40 and 42 as can best be seen from the top plan view of the apparatus depicted in FIG. 2.
  • Each of the compartments 40 and 42 define substantially rectilinear chambers with the outside walls 44 and 46 thereof (see FIG. 5) being downwardly and inwardly inclined much in the manner of a hopper.
  • Separate coarse and fine aggregates, such as sand and gravel or the like, are separately stored within each of the individual storage compartments 40 and 42. Loading takes place from the top of the compartments as shown in FIGS. 2 and 5.
  • each of the separate storage compartments 40 and 42 are open and are disposed immediately above an elongated substantially horizontal conveyor section generally designated 30, which conveyor 30 can, for example, comprise a belt conveyor driven in a clock-wise manner when viewing FIG. 3 by any suitable drive mechanism which has not been illustrated for purposes of illustrative clarity.
  • the drive mechanism 30 could be coupled via a gearing arrangement to the substantially vertically disposed conveyor section 32 to be described hereinbelow.
  • first metering means 28 a first metering means generally designatedby reference numeral 28. Attention is directed to FIG. 5 of the drawings wherein the detailed construction of the first metering means 28 can be seen.
  • the first metering means 28 comprises vertically slidable gates 48 and 50 respectively associated with compartments 40 and 42.
  • the vertically slidable gates 48 and 50 are disposed within channels or guides 52 and the vertical position of the respective'gates 48 and 50 and thus the degree or amount of opening of the gates can readily be controlled.
  • each of the gates 48 and 50 have a gear rack 54 associated therewith, each gear rack 54 being coupled to pinion gears 56 disposed on shafts 58 which can be rotated by the external hand wheels 60.
  • shaft 58 of the control mechanism for gate 48 is a flexible shaft, though it should be appreciated by those skilled in the art that other control mechanisms could readily be substituted for that specifically depicted in FIG. 5 of the drawings.
  • the amount and ratio of the aggregates, such as sand and gravel, that is dispensed from the individual or separate compartments 40 and 42 can volumetrically be controlled.
  • conveyor section 32 comprises a bucket conveyor which incorporates a plurality of buckets such as designated by reference numeral 64 disposed upon a chain 66, the chain '66 and thus the conveyor section 32 being driven by a gearing arrangement 68 which may constitute a power-takeoff from the truck upon which the bituminous concrete apparatus is mounted.
  • the conveyor section 32 therefore serves to lift and carry upwardly the aggregates dispensed into the trough or well 62 from the individual storage compartments 40 and 42.
  • the lifted aggregates are discharged into an underlying auger or screw generally designated by reference numeral 70.
  • the auger or screw 70 serves to carry the discharged ingredients rearwardly, i.e., from right to left when viewing FIGS. l and 3, for example, into a heating and drying means 34 whereat the aggregates are dried and are raised to an elevated temperature as will be further described.
  • the auger or screw'70 can be driven directly from the conveyor 32 by means of a chain or belt drive 72 as is depicted in FIG. 4, the chain or belt 72 being disposed about an idler pulley 74 as is indicated.
  • the chain or belt drive 72 as is depicted in FIG. 4, the chain or belt 72 being disposed about an idler pulley 74 as is indicated.
  • an elongated hollow drum 78 preferably constructed of steel and being reinforced with a plurality of ribs 80 which further extend into the interior of the hollow drum, and by a forwardly disposed crossbrace 82.
  • the hollow drum 78 is rotatable and is journalled for rotation at its rearward end by a journal bearing generally designated by reference numeral 84.
  • a shaft 86 is attached to the cross-brace 82, the shaft being journalled as at reference numeral 88 and being coupled for driving rotation to the idler pulley 74 of the substantially vertical conveyor section 32 by a chain or belt drive 90. Therefore, as the substantially vertical conveyor section 32 is operated, rotation of the elongated hollow drum 78 is effected.
  • a heating source such as a forced air oil burner generally designated by reference numeral 92.
  • substantially vertical conveyor section 32 is covered by a shroud 76 and it should further be noted that conveyor section 32 makes a slightly acute angle with the vertical, i.e., leans towards the rear of the apparatus so as to facilitate discharge of the aggregates into the heating and drying means 34 and so as to facilitate the mechanical gearing and other coupling arrangements between the heating and drying means 34, as will be described.
  • the function of the heating and drying means 34 is to dry and to raise the temperature of the aggregates deposited therein to approximately 400 F. and further to convey or transport the aggregates towards the rear of the apparatus for subsequent discharge.
  • the heating and drying means of the instant invention in the preferred embodiment thereof will be seen to source of air is coupled to the burner 92 by a line 94 as depicted in FIG. 7, which line runs to a blower 96 disposed on the side of the apparatus as is depicted in FIG. 1.
  • a non-illustrated oil line for supplying the burner 92 is coupled to an oil tank 98 also disposed on the mobile frame or bed 20 of the truck 22.
  • fuel other than oil can be utilized to effect operation of the burner 92.
  • the heated air from the heating mechanism or burner 92 passes through the hollow rotating drum 78 from the rear towards the front thereof, the rotation of the drum particularly in conjunction with the protruding vanes or fins serving to agitate the aggregates so as to effect a more even heating thereof and serving to transport or convey the aggregates from the front of the drum towards the rear thereof.
  • the hollow drum 78 is not disposed exactly on the horizontal in the preferred inventive embodiment, but is slightly inclined from front to rear to effectively make a right angle with the substantially vertical conveyor section 32.
  • the hot air blown into the rotating drum 78 is discharged through an air channel means 100 communicating between the hollow drum 78 and each of the storage compartments 40 and 42.
  • the air channel means 100 is partially formed by internal duct work leading to each of the storage compartments 40 and 42 and is further formed by a shroud or cover 102 which runs the length of the elongated hollow drum 78 and is disposed immediately above. Air flow into the drum 78 therefore follows arrow 104 as can best be seen in FIG. 3 into each of the storage compartments 40 and 42, which air flow serves to pre-dry the ingredients in the compartments and settles any dust that may occur through operation of the rotating drum 78.
  • This air flow can be further assisted by the provision of fans 106 in the channel means communicating between each of the compartments 40 and 42 and the hollow rotating drum 78.
  • the drive for each of the fans 106 can be taken off the various gears provided for the substantially vertical conveyor 32 which, as has been described, is itself driven from the power takeoff 68 of the truck.
  • the now-heated aggregates moving rearwardly through the hollow rotating drum 78 are discharged therefrom through an outlet 108 provided at the rear end thereof into a hopper assembly 36 as can best be seen from a review of FIGS. 1, 3, and 7.
  • the aggregates discharged into the hopper assembly 36 are dispensed or metered therefrom by the provision of a further gate 110 in association with a rotating drum or conveyor 112 which is contemplated to rotate in a clock-wise direction as appears in FIG. 7.
  • the heated aggregates discharged into the hopper assembly onto the rotating conveyor 112 are dispensed from the hopper assembly through the slidable gate 110, whereby the aggregates fall down a chute 114 into a pug mill type mixing means defined by a funnel mechanism 116 and an underlying lateral conveyor or auger 118 to be described hereinbelow.
  • a pug mill type mixing means defined by a funnel mechanism 116 and an underlying lateral conveyor or auger 118 to be described hereinbelow.
  • the liquid bitumen which has been stored -in storage compartment 26 and discharged through a pipe 120 through a metering valve 122 as can be seen in FIG. 7.
  • the liquid bitumen within the storage compartment or tank 26 may likewise have been raised to an elevated temperature through the provision of a further oil burner 124 which is fueled from the general supply tank 98.
  • the ratio of the dry ingredients to the liquid ingredi' ents discharged into the lateral conveyor or auger 118 can closely be controlled whereby the consistency and quality of the asphalt formed can be selected.
  • the hopper assembly and underlying rotating wheel or drum 112 are mounted on a pivotally disposed and spring-loaded lever or support arm 124.
  • the support arm 124 is pivoted to the truck frame around bearing 126 and the other end of support arm 124 is coupled to the body of the truck by a spring mechanism 128. In this fashion, the entire hopper assembly will move downwardly as aggregates accumulate therein, and, when empty, the hopper assembly would move upwardly, must as is shown in FIG. 7.
  • This movement of the hopper assembly and specifically of the lever or support arm 124 can be monitored as an indication of the amount of aggregates discharged from the heater and drying means 34.
  • operation of the rotating conveyor 112 is effected by an electric motor 130 which itself is controlled through mechanical linkage generally designated by reference numeral 132 coupled to the lever arm 124.
  • the electric motor 130 will be turned on by the linkage means 132.
  • the electric motor 130 will be turned off, thus effecting a selective control over the rotation of the conveyor 112.
  • the metering means or valve 122 disposed in the line 120 through which the liquid bitumen is discharged is likewise controlled via the mechanical linkage 132 by the position of the support or lever arm 124.
  • a controlled amount of liquid bitumen is likewise being dispensed or metered into the funnel 116. Additional control over the quality and consistency of the bituminous concrete being produced can be effected by operation of the gate 110 controlling the volume amount of aggregates dispensed, as has been mentioned above.
  • various other synchronization mechanisms can be utilized in place of the mechanical linkage 132 so as to control the aggregates and liquid bitumen dispensed into the funnel 116.
  • bituminous concrete The ingredients dispensed into funnel 116, both wet and dry, are mixed in the lateral conveyor or auger 118 to thereby form what is termed herein bituminous concrete.
  • bituminous concrete From the lateral auger or conveyor 118, the bituminous concrete is dispensed into a spreading means 38 disposed at the rear of the mobile frame 30 and carried along behind.
  • the spreading means or apparatus 38 comprises a heat chamber means 134 disposed forwardly of the mechanism to which is coupled an additional oil burner or other heater 136, also fueled from the fuel supply tank 98. In this fashion,.the surface of a roadway underlying the spreading means or mechanism 38 can be heated. In the preferred inventive embodiment, two such burners or heaters 136 are provided to either side of the ap paratus as can best be seen from a review of FIG. 8.
  • the lateral conveyor means generally designated by reference numeral 138 is disposed rearwardly of the heat chamber means 134 for receiving the bituminous concrete from the lateral auger or screw conveyor 118 and for evenly distributing the bituminous concrete over the heated underlying road surface.
  • the detailed construction of the lateral conveyor means 138 is best illustrated in FIG. 9 of the appended drawings, the lateral conveyor means comprising in the preferred embodiment two elongated augers 140 and 142 disposed one above the other, with auger 144 conveying the bituminous concrete outwardly towards either side of the apparatus and with auger 142 conveying the bituminous concrete inwardly from either side of the apparatus towards the center thereof. In this fashion, the even distribution of the bituminous concrete over the underlying roadway is assured.
  • a vibrator means generally designated by reference numeral 146 is disposed rearwardly of the conveyor means 138 for settling the distributed bituminous concrete.
  • the vibrating means 146 will be seen to comprise a triangularly shaped plate defining an inner chamber, to which plate a vibrator 150 is attached.
  • a hollow tube or duct 152 communicates between the interior of the heat chamber means 134 and the vibrator chamber 146 so as to further heat the bituminous concrete being settled, thus further assuring good adhesion properties and preventing the bituminous concrete from sticking to the chamber.
  • the plate 148 of the vibrating means 146 is preferably hingeably mounted such as at pivot point 152.
  • a compacting means generally designated by reference numeral 154 is disposed at the rear of the spreader means 38 for compacting the now settled bituminous concrete.
  • the compacting means 154 constitutes a weighted roller, as is shown'.
  • the spreader means 38 is attached to the rear of the truck 22 by mounting means generally designated by reference numeral 156.
  • such mounting means constitutes a triangular mount defined by three hydraulic cylinders.
  • a cylinder such a cylinder 158 is disposed to either side of the spreader apparatus 38.
  • a cylinder such as cylinder 160 is disposed centrally of the spreading apparatus 38, the hydraulic cylinders coupling the spreader apparatus to the mobile frame 20 of the truck 22 in a fashion such that the height of the spreader means 38 above the ground as well as its angle relative to the underlying ground surface can readily be controlled.
  • the rear of the spreader means 38 is supported by virtue of the compacting means or roller 154.
  • each of the various burners or heaters provided are contemplated to have associated therewith electrical temperature sensors so that the temperatures thereof can carefully be controlled.
  • the positioning of the various metering gatesabove-described can be controlled through various well-known hydraulic means and, to this end, the novel invention is contemplated to include, if desired, hydraulic pump and suitable automatic controls therefor coupled to the power takeoff of the truck. Similar automatic controls and gearing can be provided to control the relative speeds of the various conveyors and the like so that the entire operation of the bituminous concrete producing apparatus can be automated.
  • the novel invention has been seen to comprise a selfcontained mixing apparatus which is disposed upon an elongated mobile frame such as a truck body. Separate storage compartments are disposed on the frame for separately storing the aggregates and the liquid bitumen. A conveyor means is provided for conveying the aggregates from the various storage compartments therefor forwardly to the front end of the mobile frame,
  • the heater and drying means incorporates an agitator means or vanes serving to move the aggregates heated therein from the front of the frame to the' rear thereof, whereat the heated agregates are discharged into a discharge means disposed at the rear of the frame.
  • the heated aggregates are now dropped downwardly into a mixing means into which the liquid bitumen is also dispensed, the amount of ingredients dispensed into the mixing means being carefully controlled and metered so as to form bituminous concrete.
  • this bituminous concrete is then spread and applied to the underlying roadway by means of a separate, though associated, apparatus which serves to first heat the underlying roadway, spread the bituminous concrete, settle the bituminous concrete, and compact same.
  • the entire apparatus as abovestated, is mobile and can readily be transported to the scene or site of a repair job, and operation of the apparatus can readily be effected by a minimum crew, thus resolving many problems that have faced the prior art.
  • a self-contained bituminous concrete mixing apparatus comprising, in combination:
  • conveyormeans disposed on said frame adjacent said aggregate storage compartment for transporting aggregates from said compartment into said one end of said hollow drum;
  • receiving means disposed on said frame adjacent said other end of said hollow drum for receiving the heated and dried aggregates from said hollow drum and for discharging same; mixing means disposed on said frame beneath said receiving means into which is discharged the heated and dried aggregates;
  • said mixing means effecting a mixing of the aggregates with the liquid bitumen to therein form bituminou's concrete.
  • An apparatus as defined in claim 4 further including a spreader means for spreading and compacting the bituminous concrete on a road surface.
  • said storage compartments include a plurality of separate chambers for separately storing aggregates disposed substantially along the length of the frame in a location to either side of and substantially immediately below said hollow drum defining said heater means, said conveyor means including an elongated substantially horizontal section disposed immediately below said separate chambers for feeding the aggregates therein in a direction toward the front of said mobile frame, and controllable gate means in association with said horizontal section of said conveyor to meter the amount of aggregates removed from each of said separate chambers.
  • said conveyor means further includes a vertical section defined by a bucket conveyor for carrying aggregates discharged by said horizontal section upwardly and into said hollow drum.
  • said burner associated with said hollow drum defining said heater means is a forced air burner effecting a flow of heated air through said hollow drum and about the aggregates therein.
  • An apparatus as defined in claim 8 further including air channel means communicating between said hollow drumand each of said storage compartments for storing the aggregates for effecting flow of air from said drum into said storage compartments whereby the aggregates within said storage compartments are further dried and whereby dust within said storage compartments is settled.
  • said receiving means includes a hopper for receiving the heated aggregates from said drum, and a first dispensing means for controlling the amount of aggregates discharged from said hopper into said mixing means, wherein a second dispensing means is provided for controlling the amount of liquid bitumen discharged from said storage compartment therefor into said mixing means, and wherein means are provided to synchronize said first and second dispensing means.
  • said first dispensing means comprises a conveyor disposed at the bottom of said hopper for carrying aggregates therein towards a discharge point whereat metering gates are provided, the speed of said conveyor, the closure of said gates, and the amount of liquid bitumen discharged by said second dispensing means being correlated.
  • said synchronizing means includes means to sense the weight of the aggregates within said hopper to control operation of said rotary conveyor and said second dispensing means.
  • a mobile apparatus for applying bituminous concrete to an underlying road surface comprising, in combination:
  • heat chamber means disposed forwardly of said apparatus for heating the underlying road surface
  • hopper means disposed over and in feeding relation to said lateral conveyor for receiving bituminous concrete from some external source
  • said lateral conveyor means comprises two elongated augers disposed one above the other, one of said augers conveying the bituminous'concrete outwardly toward either side of the apparatus toward the center thereof.
  • said compacting means comprises a roller, said roller supporting said apparatus on the underlying surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
US00288987A 1972-09-14 1972-09-14 Self contained mobile asphalt mixing and applying apparatus Expired - Lifetime US3820914A (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
US00288987A US3820914A (en) 1972-09-14 1972-09-14 Self contained mobile asphalt mixing and applying apparatus
ZA735958A ZA735958B (en) 1972-09-14 1973-08-30 Self-contained mobile bituminous concrete mixing and applying apparatus
CA179,979A CA987665A (en) 1972-09-14 1973-08-30 Self-contained mobile bituminous concrete mixing and applying apparatus
GB4191973A GB1442829A (en) 1972-09-14 1973-09-06 Selfcontained mobile bituminous concrete mixing apparatus
IT2884673A IT993228B (it) 1972-09-14 1973-09-12 Apparato mobile autonomo per mescolare e applicare conglomerato bituminoso
BR7090/73A BR7307090D0 (pt) 1972-09-14 1973-09-12 Maquina de locomocao propria para mistura e aplicacao de concreto lutuminado
FR7332944A FR2200409A1 (enrdf_load_stackoverflow) 1972-09-14 1973-09-13
DE19732346212 DE2346212A1 (de) 1972-09-14 1973-09-13 Fahrbare bitumenbeton-mischvorrichtung
JP48103344A JPS4965628A (enrdf_load_stackoverflow) 1972-09-14 1973-09-14
AU69189/74A AU478692B2 (en) 1972-09-14 1974-05-21 Self-contained mobile bituminous concrete mixing and applying apparatus
CH734474A CH593391A5 (enrdf_load_stackoverflow) 1972-09-14 1974-05-29
BE6044614A BE815770A (fr) 1972-09-14 1974-05-30 Dispositif mobile autonome de melange et d'application de betonbitumineux
KE2778A KE2778A (en) 1972-09-14 1974-10-26 Self-contained mobile bituminous concrete mixing apparatu
HK437/77A HK43777A (en) 1972-09-14 1977-08-25 Self-contained mobile bituminous concrete mixing apparatu
MY7700312A MY7700312A (en) 1972-09-14 1977-12-30 Self-contained mobile bituminous concrete mixing apparatus

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US00288987A US3820914A (en) 1972-09-14 1972-09-14 Self contained mobile asphalt mixing and applying apparatus
AU69189/74A AU478692B2 (en) 1972-09-14 1974-05-21 Self-contained mobile bituminous concrete mixing and applying apparatus
CH734474A CH593391A5 (enrdf_load_stackoverflow) 1972-09-14 1974-05-29

Publications (1)

Publication Number Publication Date
US3820914A true US3820914A (en) 1974-06-28

Family

ID=27155797

Family Applications (1)

Application Number Title Priority Date Filing Date
US00288987A Expired - Lifetime US3820914A (en) 1972-09-14 1972-09-14 Self contained mobile asphalt mixing and applying apparatus

Country Status (12)

Country Link
US (1) US3820914A (enrdf_load_stackoverflow)
JP (1) JPS4965628A (enrdf_load_stackoverflow)
AU (1) AU478692B2 (enrdf_load_stackoverflow)
BE (1) BE815770A (enrdf_load_stackoverflow)
BR (1) BR7307090D0 (enrdf_load_stackoverflow)
CA (1) CA987665A (enrdf_load_stackoverflow)
CH (1) CH593391A5 (enrdf_load_stackoverflow)
DE (1) DE2346212A1 (enrdf_load_stackoverflow)
FR (1) FR2200409A1 (enrdf_load_stackoverflow)
GB (1) GB1442829A (enrdf_load_stackoverflow)
HK (1) HK43777A (enrdf_load_stackoverflow)
KE (1) KE2778A (enrdf_load_stackoverflow)

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US4072435A (en) * 1976-11-11 1978-02-07 Irl Daffin Associates, Inc. Method and apparatus for maintaining highways
US4226552A (en) * 1978-05-17 1980-10-07 Moench Frank F Asphaltic pavement treating apparatus and method
US4624575A (en) * 1985-08-30 1986-11-25 Lantz Construction Company Cement mobile mixer
US4768884A (en) * 1987-03-03 1988-09-06 Elkin Luther V Cement mixer for fast setting materials
US4781466A (en) * 1986-05-23 1988-11-01 Zimmerman Harold M Method and apparatus for producing concrete
US5044819A (en) * 1990-02-12 1991-09-03 Scanroad, Inc. Monitored paving system
WO1991016497A1 (en) * 1990-04-20 1991-10-31 Minkkinen Risto J A system for spreading a wet mass
DE4200760A1 (de) * 1991-01-18 1992-07-23 Alex Sin Mfg Strassenasphaltiermaschine mit drehbarem trommelmischer und in zonen unterteilter heizkammer zur herstellung von asphaltaggregaten fuer strassendecken
US5193935A (en) * 1991-01-07 1993-03-16 Cedarapids, Inc. Soil decontamination apparatus and methods of decontaminating soil
US5590976A (en) * 1995-05-30 1997-01-07 Akzo Nobel Ashpalt Applications, Inc. Mobile paving system using an aggregate moisture sensor and method of operation
ES2116856A1 (es) * 1994-10-18 1998-07-16 Impergalicia S A Maquina para la aplicacion en caliente de mastic bituminoso, alquitran vinilo o similares con o sin armadura de aluminio.
US5824138A (en) * 1997-05-01 1998-10-20 Taylor, Iii; C. Milton System for removing noxious odors from a chemical tanker truck
US5980153A (en) * 1998-07-30 1999-11-09 Akzo Nobel Asphalt Applications, Inc. Telescoping auger shaft and method of manufacture
US6161986A (en) * 1998-06-12 2000-12-19 Geff's Manufacturing, Inc. Aggregate spreading apparatus and methods
US6398453B1 (en) 1998-07-30 2002-06-04 Akzo Nobel Asphalt Applications, Inc. Telescoping spreader box with replaceable strike-off system
US20070065229A1 (en) * 2005-09-20 2007-03-22 Mark Westbrook Road patching equipment
US20070231069A1 (en) * 2006-03-24 2007-10-04 Joseph Voegele Ag Paving convoy
US7458746B1 (en) * 2005-08-22 2008-12-02 Zimmerman Harold M Mobile asphalt production machine
CN100519940C (zh) * 2004-12-29 2009-07-29 湖南力威液压设备有限公司 车载拖挂式沥青路面养护机
WO2010072879A1 (es) * 2008-12-23 2010-07-01 Excavaciones Breogan-Hugo, S.L. Dispositivo para la colocación de hormigón armado en superficies
US20100322710A1 (en) * 2009-06-18 2010-12-23 Bill Ryan Pothole patching machine
US7980484B1 (en) 2008-04-21 2011-07-19 Highway Equipment Company Automatic flow gap adjusting anti-slab method and apparatus
US8556536B2 (en) 2009-01-02 2013-10-15 Heatwurx, Inc. Asphalt repair system and method
US8562247B2 (en) 2009-01-02 2013-10-22 Heatwurx, Inc. Asphalt repair system and method
USD700633S1 (en) 2013-07-26 2014-03-04 Heatwurx, Inc. Asphalt repair device
US8801325B1 (en) 2013-02-26 2014-08-12 Heatwurx, Inc. System and method for controlling an asphalt repair apparatus
US20150008094A1 (en) * 2013-07-05 2015-01-08 Joseph Voegele Ag Construction machine with heatable bearing structures
CN105178140A (zh) * 2015-09-20 2015-12-23 四川人杰筑路机械有限公司 沥青混凝土拌合设备的除尘矿料单独计量使用的方法
CN105200902A (zh) * 2015-10-26 2015-12-30 徐州徐工筑路机械有限公司 一种保温储料式沥青路面综合养护车
US9416499B2 (en) 2009-12-31 2016-08-16 Heatwurx, Inc. System and method for sensing and managing pothole location and pothole characteristics
CN107386061A (zh) * 2017-08-04 2017-11-24 浙江美通筑路机械股份有限公司 一种沥青路面热再生养护车的热风加热及除尘一体化装置
US20180142431A1 (en) * 2016-11-18 2018-05-24 Dragon Asphalt Equipment, LLC Portable paving material mixing apparatus
US20180313059A1 (en) * 2017-04-28 2018-11-01 MK-1 Construction Services, LLC Self-propelled pavement material placing machine and methods for backfilling micro-trenches
US10337154B2 (en) * 2017-10-24 2019-07-02 Renova Industries, LLC Asphalt recycler
US10480129B2 (en) * 2017-07-10 2019-11-19 Cimline, Inc. Methods and apparatus for repairing road surfaces
US10688687B2 (en) 2016-11-08 2020-06-23 J&P Invesco Llc Volumetric concrete mixing system, equipment, and method
IT201900002791A1 (it) * 2019-02-27 2020-08-27 Cavecon S R L Macchina semovente per la preparazione di miscele bituminose a caldo.
CN111847952A (zh) * 2020-06-12 2020-10-30 福建省铁拓机械股份有限公司 用于rap及骨料加热的带可伸缩燃烧室的复合烘干滚筒
IT202000016135A1 (it) 2020-07-03 2022-01-03 Bunni S R L Veicolo per il rattoppo della pavimentazione stradale, metodo e flotta
US11370148B2 (en) 2015-09-21 2022-06-28 Eagle Strong Investments, Llc Volumetric mobile powder mixer
US12173471B1 (en) 2020-09-17 2024-12-24 J&P Invesco Llc Applicators for micro-trenching

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JPS61188605U (enrdf_load_stackoverflow) * 1985-05-16 1986-11-25
US5006012A (en) * 1989-03-09 1991-04-09 Sterner Carl L Combination road repair machine with improved crack-filling capabilities
FR2677383A1 (fr) * 1991-06-04 1992-12-11 Colas Sa Machine de construction de chaussee du type finisseur.
FR2955946B1 (fr) * 2010-02-02 2012-04-20 Famaro Procede de determination du debit de bitume ou de liants hydrocarbones a injecter dans une centrale d'enrobage continu
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CN112376357B (zh) * 2020-12-05 2022-11-29 江苏雷畅建设发展有限公司 一种道路养护用沥青加热装置
CN114319016B (zh) * 2021-11-24 2024-01-26 怀宁县四通混凝土制品有限公司 一种改性环氧沥青混凝土加工装置及其加工工艺

Cited By (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4072435A (en) * 1976-11-11 1978-02-07 Irl Daffin Associates, Inc. Method and apparatus for maintaining highways
US4226552A (en) * 1978-05-17 1980-10-07 Moench Frank F Asphaltic pavement treating apparatus and method
US4624575A (en) * 1985-08-30 1986-11-25 Lantz Construction Company Cement mobile mixer
US4781466A (en) * 1986-05-23 1988-11-01 Zimmerman Harold M Method and apparatus for producing concrete
US4768884A (en) * 1987-03-03 1988-09-06 Elkin Luther V Cement mixer for fast setting materials
US5044819A (en) * 1990-02-12 1991-09-03 Scanroad, Inc. Monitored paving system
WO1991016497A1 (en) * 1990-04-20 1991-10-31 Minkkinen Risto J A system for spreading a wet mass
US5193935A (en) * 1991-01-07 1993-03-16 Cedarapids, Inc. Soil decontamination apparatus and methods of decontaminating soil
US5350252A (en) * 1991-01-07 1994-09-27 Cedarapids, Inc. Single drum multiple soil remediation and classification apparatus and method
DE4200760A1 (de) * 1991-01-18 1992-07-23 Alex Sin Mfg Strassenasphaltiermaschine mit drehbarem trommelmischer und in zonen unterteilter heizkammer zur herstellung von asphaltaggregaten fuer strassendecken
ES2116856A1 (es) * 1994-10-18 1998-07-16 Impergalicia S A Maquina para la aplicacion en caliente de mastic bituminoso, alquitran vinilo o similares con o sin armadura de aluminio.
US5590976A (en) * 1995-05-30 1997-01-07 Akzo Nobel Ashpalt Applications, Inc. Mobile paving system using an aggregate moisture sensor and method of operation
US5824138A (en) * 1997-05-01 1998-10-20 Taylor, Iii; C. Milton System for removing noxious odors from a chemical tanker truck
US6161986A (en) * 1998-06-12 2000-12-19 Geff's Manufacturing, Inc. Aggregate spreading apparatus and methods
US6398453B1 (en) 1998-07-30 2002-06-04 Akzo Nobel Asphalt Applications, Inc. Telescoping spreader box with replaceable strike-off system
US5980153A (en) * 1998-07-30 1999-11-09 Akzo Nobel Asphalt Applications, Inc. Telescoping auger shaft and method of manufacture
CN100519940C (zh) * 2004-12-29 2009-07-29 湖南力威液压设备有限公司 车载拖挂式沥青路面养护机
US7654772B1 (en) 2005-08-22 2010-02-02 Zimmerman Harold M Mobile asphalt production machine
US7458746B1 (en) * 2005-08-22 2008-12-02 Zimmerman Harold M Mobile asphalt production machine
US7201536B1 (en) * 2005-09-20 2007-04-10 Mark Westbrook Road patching equipment
US20070065229A1 (en) * 2005-09-20 2007-03-22 Mark Westbrook Road patching equipment
US20070231069A1 (en) * 2006-03-24 2007-10-04 Joseph Voegele Ag Paving convoy
US7572081B2 (en) * 2006-03-24 2009-08-11 Joseph Voegele Ag Paving convoy
US7980484B1 (en) 2008-04-21 2011-07-19 Highway Equipment Company Automatic flow gap adjusting anti-slab method and apparatus
WO2010072879A1 (es) * 2008-12-23 2010-07-01 Excavaciones Breogan-Hugo, S.L. Dispositivo para la colocación de hormigón armado en superficies
ES2346171A1 (es) * 2008-12-23 2010-10-11 Excavaciones Breogan- Hugo, S.L Dispositivo para la colocacion de hormigon armado en superficies.
ES2346171B1 (es) * 2008-12-23 2011-08-12 Excavaciones Breogan- Hugo, S.L Dispositivo para la colocacion de hormigon armado en superficies.
US8556536B2 (en) 2009-01-02 2013-10-15 Heatwurx, Inc. Asphalt repair system and method
US8714871B2 (en) 2009-01-02 2014-05-06 Heatwurx, Inc. Asphalt repair system and method
US8562247B2 (en) 2009-01-02 2013-10-22 Heatwurx, Inc. Asphalt repair system and method
US20100322710A1 (en) * 2009-06-18 2010-12-23 Bill Ryan Pothole patching machine
US8167513B2 (en) * 2009-06-18 2012-05-01 Bill Ryan Pothole patching machine
US9022686B2 (en) * 2009-12-31 2015-05-05 Heatwurx, Inc. System and method for controlling an asphalt repair apparatus
US20140348586A1 (en) * 2009-12-31 2014-11-27 Heatwurx, Inc. System and method for controlling an asphalt repair apparatus
US9416499B2 (en) 2009-12-31 2016-08-16 Heatwurx, Inc. System and method for sensing and managing pothole location and pothole characteristics
US8801325B1 (en) 2013-02-26 2014-08-12 Heatwurx, Inc. System and method for controlling an asphalt repair apparatus
US20150008094A1 (en) * 2013-07-05 2015-01-08 Joseph Voegele Ag Construction machine with heatable bearing structures
US9340365B2 (en) * 2013-07-05 2016-05-17 Joseph Voegele Ag Construction machine with heatable bearing structures
USD700633S1 (en) 2013-07-26 2014-03-04 Heatwurx, Inc. Asphalt repair device
CN105178140A (zh) * 2015-09-20 2015-12-23 四川人杰筑路机械有限公司 沥青混凝土拌合设备的除尘矿料单独计量使用的方法
US11370148B2 (en) 2015-09-21 2022-06-28 Eagle Strong Investments, Llc Volumetric mobile powder mixer
CN105200902A (zh) * 2015-10-26 2015-12-30 徐州徐工筑路机械有限公司 一种保温储料式沥青路面综合养护车
US10688687B2 (en) 2016-11-08 2020-06-23 J&P Invesco Llc Volumetric concrete mixing system, equipment, and method
US11850769B1 (en) 2016-11-08 2023-12-26 J&P Invesco Llc Volumetric concrete mixing system, equipment, and method
US11173630B1 (en) 2016-11-08 2021-11-16 J&P Invesco Llc Volumetric concrete mixing system, equipment, and method
US20180142431A1 (en) * 2016-11-18 2018-05-24 Dragon Asphalt Equipment, LLC Portable paving material mixing apparatus
US10443211B2 (en) * 2017-04-28 2019-10-15 MK-1 Construction Services, LLC Self-propelled pavement material placing machine and methods for backfilling micro-trenches
US11168460B1 (en) 2017-04-28 2021-11-09 J&P Invesco Llc Self-propelled pavement material placing machine and methods for backfilling micro-trenches
US20180313059A1 (en) * 2017-04-28 2018-11-01 MK-1 Construction Services, LLC Self-propelled pavement material placing machine and methods for backfilling micro-trenches
US10480129B2 (en) * 2017-07-10 2019-11-19 Cimline, Inc. Methods and apparatus for repairing road surfaces
US11091885B2 (en) 2017-07-10 2021-08-17 Cimline, Inc. Methods and apparatus for repairing road surfaces
CN107386061A (zh) * 2017-08-04 2017-11-24 浙江美通筑路机械股份有限公司 一种沥青路面热再生养护车的热风加热及除尘一体化装置
US10337154B2 (en) * 2017-10-24 2019-07-02 Renova Industries, LLC Asphalt recycler
IT201900002791A1 (it) * 2019-02-27 2020-08-27 Cavecon S R L Macchina semovente per la preparazione di miscele bituminose a caldo.
CN111847952A (zh) * 2020-06-12 2020-10-30 福建省铁拓机械股份有限公司 用于rap及骨料加热的带可伸缩燃烧室的复合烘干滚筒
IT202000016135A1 (it) 2020-07-03 2022-01-03 Bunni S R L Veicolo per il rattoppo della pavimentazione stradale, metodo e flotta
EP3933108A1 (en) 2020-07-03 2022-01-05 Bunni S.r.l. A vehicle for patching a road pavement and a method therefor
US12173471B1 (en) 2020-09-17 2024-12-24 J&P Invesco Llc Applicators for micro-trenching

Also Published As

Publication number Publication date
AU6918974A (en) 1975-11-27
HK43777A (en) 1977-09-02
JPS4965628A (enrdf_load_stackoverflow) 1974-06-25
AU478692B2 (en) 1975-11-27
BR7307090D0 (pt) 1974-07-25
GB1442829A (en) 1976-07-14
BE815770A (fr) 1974-09-16
DE2346212A1 (de) 1974-03-28
CH593391A5 (enrdf_load_stackoverflow) 1977-11-30
FR2200409A1 (enrdf_load_stackoverflow) 1974-04-19
KE2778A (en) 1977-10-21
CA987665A (en) 1976-04-20

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Owner name: M & I MARSHALL & ILSELEY BANK, NORTHWESTERN MUTUAL

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