US3907450A - Scarifier for use with asphalt concrete roadway refinishing apparatus - Google Patents

Scarifier for use with asphalt concrete roadway refinishing apparatus Download PDF

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Publication number
US3907450A
US3907450A US467067A US46706774A US3907450A US 3907450 A US3907450 A US 3907450A US 467067 A US467067 A US 467067A US 46706774 A US46706774 A US 46706774A US 3907450 A US3907450 A US 3907450A
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United States
Prior art keywords
road surface
scarifying
pressure
blades
units
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Expired - Lifetime
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US467067A
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English (en)
Inventor
Earl F Cutler
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Cutler Repaving Inc
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Cutler Repaving Inc
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Filing date
Publication date
Application filed by Cutler Repaving Inc filed Critical Cutler Repaving Inc
Priority to US467067A priority Critical patent/US3907450A/en
Priority to SE7410263A priority patent/SE7410263L/xx
Priority to DE2441379A priority patent/DE2441379A1/de
Priority to GB38203/74A priority patent/GB1482119A/en
Priority to FR7431144A priority patent/FR2270381B1/fr
Priority to CH1281274A priority patent/CH581751A5/xx
Priority to IT53310/74A priority patent/IT1019457B/it
Priority to CA224,749A priority patent/CA1045868A/en
Application granted granted Critical
Publication of US3907450A publication Critical patent/US3907450A/en
Anticipated expiration legal-status Critical
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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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/065—Recycling in place or on the road, i.e. hot or cold reprocessing of paving in situ or on the traffic surface, with or without adding virgin material or lifting of salvaged material; Repairs or resurfacing involving at least partial reprocessing of the existing 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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/12—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
    • E01C23/121—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor with non-powered tools, e.g. rippers
    • 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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/14—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces for heating or drying foundation, paving, or materials thereon, e.g. paint

Definitions

  • ABSTRACT The embodiment of the invention disclosed herein is directed to a scarifier assembly for use with an asphalt concrete roadway refinisher.
  • the scarifier has a support frame for movement in a given direction over the road surface being refinished, and the plurality of scarifing blades secured to the support frame for selective upward and downward movement to engage the road surface when in the down position during the scarifing operation for digging up and excavating the road surface after it is heated with radiant heat energy.
  • the scarifier assembly is urged against the heated road surface by the air bags which force the scarifing blades deep into the asphalt pavement.
  • the scarifing blades are secured by shear pin means which can be easily replaced when necessary.
  • This invention relates generally to improvementsin structure and apparatus roadway resurfacing machincry, and more particularly to a new and improved scarifing' assembly which forms one'of thework stations'of the roadway resurfacingmachine.
  • This invention dealsv with substantial useful improvements in my earlier filed patent applicationgentitled Road Surfacing Apparatus and whichhas issued as US. Pat. No. 3,361,042.
  • This patent discloses means for quickly and inexpensively resurfacing roadways which are made of asphalt concfete material and the like.
  • the apparatus may be in the order; of about 8 to 12 feet wide and 40 to 50 feet long and move along the roadway at a relatively slow rate so that during a single continuous pass the old road surface in front of the machine isheated and ultimately. excavated .asthe rnachine moves thereover and a refinished road, surface is formed at the rearof the machine.
  • Still another object of this invention isto'provide a new and improved scarifing assemblyfor use'with asphalt concrete roadway repaving machines which can be repaired quickly and'easily'should the scarifing blades inadvertently be' come dislodged from their fixed position.
  • Still another object of this invention is to provide a new and improved scarifing assembly which receives pressure from airbags so as urge the'scarifingblades directly downwardly .against'theroad' surface to be excavated.
  • FIG. 1 is 'a side elevational view of a'road repaving machine wherein the scarifing assembly of this invention'is utilized; I 1
  • FIG. 2 is a fragmentary detailed showing of the scarifing a'ssembly'o'f this invention
  • FIG. '3 is a fragmentary perspective view of the scarifing assembly of this invention.
  • FIG. 4 is a fragmentary side view showing the pivotal -shear arrangement for the scarifing blades of the scarifing assembly of this invention
  • FIG. 5 is a front 'view of the scarifing blades of FIG.
  • FIG. 6 is a top view showing thestaggered row arrangement of the scarifing blades of the scarifing assembly of this invention.
  • FIG. 7 is adiagrammatic representation showing the control valve manifold arrangement for controlling a plurality of air bags to urge the scarifing blades into contact with the road surface in accordance with the principles of this-invention.
  • FIG. 8 is a top view illustrating the transverse arrangement of'a plurality of support arm members, each having a group of scarifing blades associated therewith to be urged into contact with the road surface being EMBODIMENT
  • FIG. 1 there is seenan elevational view of a roadresurfacing machine designatedgenerally'by' referencenurneral 10,.and whereinthe scarifing assembly of this'invention is utilized.
  • the road resurfacing machine- 10 has a plurality of large pneumatic tires"l3 having sufficient contactarea with the road surface so that the weight of the large machine is distributed uniformly over the road surface so as not to deform the newly paved roadway passing therebeneath. 'As.
  • the road resurfacing machine 10 moves forward over a damaged road surface, the front end: of the machine will heat up the road surface to a depth of approximately 1 to 2'inches or more and an intermediate stage of the machine','where at the scarifing assembly of this invention is located, will dig-up the road surface.
  • Thequantity of old road surface now forming loose pavement has a quantity of new asphalt-material added therewith to build up the road surface to the previous -'heightor to a height greater than the old road surface, if desired.
  • the quantity of new asphalt material added to the old road surface is just enough'to replace those quantities which have been depleted as a result'of pot holes or the like.
  • the rate of travel of the machine may be on the order of 8 to feet per minute v thereby providing a completely reconstructed road; surface upon which trafficcan travel'substantially immediately after the road surface has bee formed.
  • a quantity'of new asphalt material l4 is delivered via atruck or othersuitable'transport means 16 into a hopper or receptacle l7'located at the front of the road resurfacing machine '10.
  • a conveyor assembly 18 along the top portion ofthe frame support of the machine transports the new asphalt material from the hopper to "one or more various work stations along the machine.
  • a control station designated generally by reference nufunctions to-be accomplished during'the travel of the preferably by independent hydraulic motors operated by hydrostatic hydraulic supply pumps controlled by the diesel engines and control panel 2.0a. However, it willbe understood thatother drive means thanthose described here may be incorporated.
  • a plurality of fuel tanks 21 are mounted on top of the support frame and designated generally-by reference numeral 22 and'are used to carry fuel supplies for both the'die'sel engine and the, radiant heating apparatus. 2 4 which is located at the. forward .endrof the machine. While a single radiantsheating apparatus 24- is disclosed hereinpprevious disclosuresof this rn achine .in related patent applications disclosed two radiant heating'apparatus.
  • one, two. or more heating units may be utilized without departing from the spiritand scope of this invention.
  • One or more bf the fuel tanks 21 may be filled with diesel-fuel while one or more of the other fuel tanks may be filled with pentanefuel for operating the radiant'heatingbur-ners within the heater 24.
  • pentanefuel for operating the radiant'heatingbur-ners within the heater 24.
  • the heating apparatus 24 includes aheating chamber '28 facing downwardly to be positionedimmediately over the road surface-tobe .repaved so that. the road surface can be heated to a depth of approximately two inches more 'orless-so that the asphalt of the concrete pavement can be adequately softened to be. excavated by the scarifingapparatus of this. invention. After the heating of the road surface is accomplished, a scarifing assembly.-25', positioned behind theheating apparatus,
  • FIG. 2- illustraterates a side'elevational view of the scarifing apparatus 25 and shows onlya portion of a support frame adapted to be moved overthe road surface in a'given direction as indicated-by the arrow 31.
  • a plurality of scarifing blades32 Positioned beneath the support frame, 30 are a plurality of scarifing blades32 which are-formed in a plurality of sub-groups extending transversely across the direction of motion of the machine.
  • pressure applying means designated generally by reference numeral 38 are positioned beneath the support frame 30 and are in direct engage-j ment with the free ends of the arms 33 so that downward pressure is applied directly to the sc arifingblade's' duringthe scarifing operation. T he pressure applying means 38 iss ecu red to a pressure bar member 39 which also holds a pluralityof airbags 40, each air bag engagingthe free end of the associated arm member 33, as best seen in FIG. 8.
  • While the number of arms and ass'ociated air bags is here illustrated as being 12, designated generally by reference numerals3'3 a, 33b, 33b, 33d, 33?, 33f, 33 33h, 331', 33 33k and 331 and'the air bags designated by 4011,4011, 40c, 40d, 40, 40f, 403;, 40/1, 40i, 4 0j, 40k, and 40l, a detailed description of only a singlesupport arm and air bag configuration will be given herein, it being understood that the sai'neclescription'afpplies to all other arms andair bags.- I
  • the pressure bar 38 is secured to the frame member pivot'means 41," located at each'end thereof so that'the pressure barcan be aligned with the inclination of theroad siirface'; if desired.
  • the air line 44 applies pressure to the bag from a regulated air supply within a manifold, to be describedin'more detail herein below.
  • a pairof joint cutting blades Positioned immediately behind the scarifing blades 32 andslightly. to the outside thereof are a pairof joint cutting blades which remove the excess mix of asphalt concrete from the seam formed along the side of the machine.
  • the lower edge surface 46a of the joint cutting blade issupplied with aweld beadof hard surfacing metal.
  • the excavatedasphalt concrete is here designated generally by reference numeral 52 and is made level by a a leveling blade 53 which rotates about a central axis 54 bysuitable side border means, not shown.
  • the leveling. blade 53. is adjustable upwardly and downwardly by vsuitable meansindi'cated generally by reference numeral 56. Therefore, the level of loose asphalt concrete is maintained uniform across the width of the machine prior to compressing the same into a compact road surface.
  • each of the,arrn members 33 is biased upwardly'by a leaf spring member 57 which has one end thereof s e'-. cured thereto the pull bar 36 and theother endthereof placed beneaththe pad element 58 welded to the'underside of the arm 53.
  • FIG. 3 clearly illustrates the type I of construction ofieach of the arm members33, they being all substantially the s'ame across the machine.
  • the arm member 33 is formed by a pair of spaced apart steel channel members 59 and 60 with the tab member 58 welded therebetween and theleaf spring 57 passes through the space between the channel members to engage the pad, as seen in FIG. 3. This feature of construction is also seen in FIG. 8.
  • the free end of the arm members 33 are provided with upper and lower plates 60 and 61, respectively, to form a substantially rigid box type construction to support the group scarifing blades secured ther eto.
  • the scarifing blade configuration is best illustrated in FIG. 6 which shows them arranged in rows 63, 64 and 65 which are staggered relative to one another, as seen in the drawing, so that the average spacing between scarifing blades is relatively small when considering the closest adjacent blade of a next r'ow'but which allows sufficient space between the blades of a given row so that excavated asphalt concrete material can easily flow through the scarifing apparatus to the leveling wheel 53.
  • This arrangement eliminates the usual buildup of asphalt material in front of the scarifing blades and provides for a more uniform admixture to be produced.
  • FIGS. 4 and 5 illustrate the details of construction of the scarifing blades secured to the free end of the support arms 33.
  • Each of the scarifing blades are here designated by reference numeral 70 and are secured between a pair of parallel spaced apart support plates 71 and 72.
  • the scarifing blades 70 are held in position between the support plates 71 and 72 by a pair of bolt members 73 and 74, the bolt member 73 being of a larger diameter than the bolt member 74.
  • the bolt member 74 is of a material that will shear under a predetermined amount of force so that should the scarifing blades 70 inadvertently engage an immovable structure in the road surface, such as a manhole, the smaller diameter bolt member 74 will shear and the scarifing blade will pivot about the larger diameter bolt member 73, as illustrated in phantom lines in FIG. 4.
  • the repair and maintenance of this type of structure is relatively simple in that it only requires anew shear bolt to be in serted through the plate members 71 and 72 and the scarifing blade 70.
  • the plate-members are secured to I the bottom of the plate 61 by suitable welding techniques and are held by welds 74.
  • the lowermost leading edge of each of the scarifing blades 70 is provided with a hard material insert 76, such as tungsten carbide or the like.
  • FIG. 8 clearly illustrates the arrangement of the support arms 33 together with their groups of scarifing blades 32 and associated air bags positioned between the-ends of the arm and the pressure bar 38.
  • the endmost arm members 33a and 331 together withtheir associated scarifing blades 32a and 321 receive a different: amount of pressure than do the scarifing blades and arms 33b through 33k.
  • One reason for the additional force is the use of the joint cutting blades 46 at these locations. This is achieved by connecting the air bags a and-401 together and to one flow control manifold and connecting the air bags 40b through 40k to another flow control manifold.
  • FIG. 7 The manifold arrangement to'achieve proper control of air pressure to the air bagsand 401 is illustrated in FIG. 7.
  • a manifold unit 80 is divided into two manifold sections, 81 and 82, which are each individually controlled by separate pressure regulator units 83 and 84, respectively.
  • the pressure regulators 83 and 84 are fed from a common pressure line 86. It is sometimes desirable to apply more pressure to the endmost air bags 40a and 401 so as to effect a deeper penetration of scarifingof the road surfacing by the associated scarifing blades 32a and 321. Therefore, the manifold chamber 81 is maintained at a higher pressure than is the manifold chamber 82.
  • the flow control valves associated .with the manifold unit 80 are of the on/off'or open/close type, each being designated generally by reference numeral 86.
  • the output line 87 associated with each of the valves is connected directly to its associated air bag and will inflate the air bag to a pressure determined by the associated regulator 83 or 84. If it is desired to raise selected ones ofthe arm members 33a-33l, so as to bypass a manhole cover or the like, the air flow control valves 86 associated with the appropriate air bags 40 will be opened so that no pressure will be applied to the air bag, and the chamber within the airbag is opened to atmospheric pressure. Once the repaving apparatus has passed over the manhole .cover the appropriate air, bags are again inflated to the pressure desired by operating the flow control valve 86.
  • a scarifier assembly for engagement with a road surface to excavate the road surface, comprising: a support frame adapted to be moved over the road surface in a given direction, a plurality of scarifying blade units secured to said support frame for separate selective upwardand downward movement and positioned to have cutting tips thereof engageable with the road' surface when in the down position during a scarifying operation, and a plurality of discrete 'yieldable fluid operated pressure applying means positioned beneath said sup port frame and directly over said-plurality of scarifying 'blades to apply a downward pressure directly upon said scarifying blades during the sacrifying operation.
  • each of said discrete yieldable pressure units is an air bag.
  • each of said groups of scarifying blades is formed of three rows of three blades in each row aligned transversely to the direction of travel of said support frame and each row staggered from the other rows to allow excavated road material easily to pass through the scarifying blades as it travels in said given direction.
  • v i v 5 The scarifier assembly for engagement with the road surface to excavate the road surface as set forth in claim 1 further including fluid pressure control means for controlling the pressure producedby each of the said plurality of discrete yieldable pressure units, said pressure control means including means for controlling the fluid pressure produced by the two endmost discrete yieldable pressure units independent of the discrete yieldable units therebetween.
  • the scarifier assembly for engagement with a road surface to excavate the road surface as set forth in Claim 1 wherein said scarifying blades include shear pin means for holding said scarifying blades in a fixed position during a scarifying operation and to permit rearward pivotal movement of said scarifying blade when a predetermined high shear pressure is exerted on said scarifying blade.
  • the scarifier assembly for engagement with a road surface to excavate the road surface as set forth in claim 1 further including joint cutting blade means positioned transversely outwardly of the endmost scarifying blades to remove road resurfacing material from the seamformed along the transverse edges of a repaved road surface to be formed.
  • a scarifier assembly for engagement with a road surface to excavate the road surface, comprising: a support frame adapted to be moved over the road surface in a given direction, a plurality of scarifying blades secured to said support frame for selective upward and downward movement and positioned to have cutting tips thereof engageable with the road surface when in I the down-position during a scarifying operation, yieldable pressure applying means positioned beneath said upon said scarifying blades during the scarifying operation, a plurality of arm means each having one end piv otally secured to said support frame, said plurality of scarifying blades being arranged in groups, each group secured to the free end of an independent one of said plurality of arm means, a pressure beam secured to said support frame immediately above said free end of said arm means, and pressure bag means positioned between said pressure beam and said free end of said arm means to urge the scarifying blades into the road surface being excavated.
  • the scarifier assembly for engagement with the road surface to excavate the road surface as set forth in claim 10 further including a plurality of paired spaced apart support plates depending from said free end of said arm means, said scarifying blades being positioned between said support plates, a first fastener of predetermined diameter passing through said support plates and the upper end of said scarifying blade, a second fastener of a diameter less than said predetermined whereby an excess of pressure applied to said scarifying blade will shearsaid second diameter fastener and pivot the scarifying blade about said first fastener.
  • the scarifier assembly for engagement witha road surface to excavate the road surface as set forth in claim 1 1 further including a plurality of spring means for automatically biasing said arms upwardly to raise the scarifying bladefrom the road surface when the pressure applying units are deactivated.
  • said spring means are a plurality of discrete leaf springs for each one of said arm means.
  • a road scarifier apparatus for excavating a road surface comprisingin combination: heating means for' movement over the road surface to soften asphalt concrete pavement forming the road surface, a support :frame for supporting said heating means, said support frame adapted to be moved over the road surface in a given direction, a plurality of scarifyingblade units secured to said support frame behind said heating means for separate selective upward and downward movement and positioned to have cutting tips thereof engageable with the heated road surface when in the down position for excavating the road surface, and a plurality of discrete separately yieldable fluid operated pressure applying units positioned beneath said support frame and respectively directly over said plurality of scarifying blade units separately to apply a downward pressure directly upon the scarifying blade units during a scarifying operation.
  • each of said discrete pressure units is an air bag.
  • a road scarifier apparatus for excavating a road surface comprising in combination: heating means for movement over the road surface to soften asphalt concrete pavement forming the road surface, a support frame for supporting said heating means, said support frame adapted to be moved over the road surface in a given direction, a plurality of scarifying blades secured to said support frame behine said heating means for selective upward and downward movement and positioned to have cutting tips thereof engageable with the heated road surface when in the down position for excavating the road surface, yieldable pressure applying means positioned beneath said support frame and directly over said plurality of scarifying blades for applying a downward pressure directly upon the scarifying blades during a scarifying operation, a plurality of arm means each having one end thereof pivotally secured to said support frame, said plurality of scarifying blades being arranged in groups, each group secured to the free end of an independent one of said plurality of arm means, a pressure beam secured to said support frame immediately above said free end of said arm means, and pressure bags positioned between said pressure beam and said free end of said arm means to apply
  • the road scarifier apparatus for excavating a road surface as set forth in claim 21 further including a plurality of paired spaced apart support plates depending from said free end of said arm means, said scarifying blades being positioned between said support plates, a first fastener of predetermined dimension passing through said support plates and the upper end of said scarifying blade, a second fastener of a dimension less than said predetermined dimension passing through said support plates and said scarifying blade immediately below said fastener, whereby an excess of pressure applied to said scarifying blade will shear said second fastener and pivot the scarifying blade about said first fastener.
  • the road scarifier apparatus for excavating a road surface as set forth in claim 22 further including a plurality of spring means for automatically biasing said arms upwardly to raise the scarifying blades from the road surface when the pressure applying units are de-activated.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Road Repair (AREA)
  • Road Paving Machines (AREA)
US467067A 1974-05-06 1974-05-06 Scarifier for use with asphalt concrete roadway refinishing apparatus Expired - Lifetime US3907450A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US467067A US3907450A (en) 1974-05-06 1974-05-06 Scarifier for use with asphalt concrete roadway refinishing apparatus
SE7410263A SE7410263L (sv) 1974-05-06 1974-08-12 Rivaggregat vid en maskin for att fornya vegar av asfaltbetong.
DE2441379A DE2441379A1 (de) 1974-05-06 1974-08-29 Aufreisservorrichtung fuer insbesondere aus asphalt bestehende strassenbelaege
GB38203/74A GB1482119A (en) 1974-05-06 1974-09-02 Scarifier for use with asphalt concrete roadway refinishing apparatus
FR7431144A FR2270381B1 (xx) 1974-05-06 1974-09-13
CH1281274A CH581751A5 (xx) 1974-05-06 1974-09-23
IT53310/74A IT1019457B (it) 1974-05-06 1974-10-01 Dispositivo scarificatore per manu tenzione e ripristino di manti stra dali
CA224,749A CA1045868A (en) 1974-05-06 1975-04-16 Scarifier for use with asphalt concrete roadway refinishing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US467067A US3907450A (en) 1974-05-06 1974-05-06 Scarifier for use with asphalt concrete roadway refinishing apparatus

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US3907450A true US3907450A (en) 1975-09-23

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US467067A Expired - Lifetime US3907450A (en) 1974-05-06 1974-05-06 Scarifier for use with asphalt concrete roadway refinishing apparatus

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US (1) US3907450A (xx)
CA (1) CA1045868A (xx)
CH (1) CH581751A5 (xx)
DE (1) DE2441379A1 (xx)
FR (1) FR2270381B1 (xx)
GB (1) GB1482119A (xx)
IT (1) IT1019457B (xx)
SE (1) SE7410263L (xx)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2643789A1 (de) * 1976-09-29 1978-03-30 Reinhard Wirtgen Maschine zum aufbringen von strassenbelaegen
US4129398A (en) * 1975-12-05 1978-12-12 Walter Schoelkopf Method and apparatus for plastifying and tearing up of damaged road-surfaces and covers
US4402629A (en) * 1980-06-05 1983-09-06 Resonant Technology Company Resonantly driven pavement crusher
US4515408A (en) * 1981-12-10 1985-05-07 Resonant Technology Company Counterweight support for resonantly driven tool
WO1985004681A1 (en) * 1984-04-11 1985-10-24 Nodest Vei A/S A method and apparatus for improving a base layer for road covering
US4560207A (en) * 1984-03-01 1985-12-24 Caterpillar Tractor Co. Method and apparatus for fragmenting asphalt
US4752155A (en) * 1987-01-31 1988-06-21 Roadtec, Incorporated Paving machine having movable heater
US4784518A (en) * 1987-11-17 1988-11-15 Cutler Repaving, Inc. Double-stage repaving method and apparatus
EP0426892A1 (en) * 1989-11-03 1991-05-15 Chin-Po Lee Asphalt road resurfacing machine
WO1996027048A1 (de) * 1995-02-27 1996-09-06 Wacker Werke Gmbh & Co. Kg. Fahrzeug zur reparatur von fahrbahndecken
US5791814A (en) * 1992-02-21 1998-08-11 Martec Recycling Corporation Apparatus for recycling an asphalt surface
US6409424B1 (en) * 2000-06-13 2002-06-25 Francesco A. Crupi Asphalt rake with ride up capability
US6416249B1 (en) * 2000-06-13 2002-07-09 Francesco A. Crupi Mixing apparatus and method for blending milled asphalt with rejuvenating fluid
US6695530B2 (en) 2000-06-13 2004-02-24 Francesco A. Crupi Mixing apparatus and method for blending milled asphalt with rejuvenating fluid
US20040098865A1 (en) * 2002-11-26 2004-05-27 Anderson Martin L. Angled shank blade
US6769836B2 (en) 2002-04-11 2004-08-03 Enviro-Pave, Inc. Hot-in-place asphalt recycling machine and process
WO2008111842A1 (en) * 2007-02-28 2008-09-18 Skanska Asfalt As System for applying asphalt surface with a receiving unit, a feeding unit, a surface treatment unit and a method for applying asphalt
CN102677580A (zh) * 2012-06-08 2012-09-19 英达热再生有限公司 一种疏松耙及其在沥青路面就地热再生设备上的应用
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
US20150102653A1 (en) * 2013-10-10 2015-04-16 Alan Edward LeBlanc Scarifier
US9416499B2 (en) 2009-12-31 2016-08-16 Heatwurx, Inc. System and method for sensing and managing pothole location and pothole characteristics
US9915042B2 (en) 2015-11-16 2018-03-13 Cutler Repaving, Inc. Multiple burner zone controlled asphalt heating hood
CN108551836A (zh) * 2018-03-27 2018-09-21 重庆铜梁三丰生物肥料有限公司 除草机
US10774503B2 (en) 2018-04-23 2020-09-15 Caterpillar Inc. Motor grader with mid-mount scarifier system
CN113186785A (zh) * 2021-05-12 2021-07-30 交通运输部公路科学研究所 一种改进型沥青混凝土保温摊铺装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH045548Y2 (xx) * 1986-12-03 1992-02-17
JPH0814085B2 (ja) * 1986-12-25 1996-02-14 大成ロテック株式会社 路上表層再生機
CN110658334B (zh) * 2019-09-17 2021-10-22 安徽省公路工程建设监理有限责任公司 一种基于bim技术的道路评估检测系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1472888A (en) * 1922-02-09 1923-11-06 Moline Plow Company Inc Tractor attachment
US1523084A (en) * 1925-01-13 scheunemann
US2196205A (en) * 1938-06-29 1940-04-09 Benjamin H Flynn Tamping and/or mixing machine
US2254463A (en) * 1939-06-13 1941-09-02 Spears Wells Machinery Company Means for constructing and reconstructing road surfaces
US2747475A (en) * 1950-12-04 1956-05-29 West Frederick Charles Road planing machines
US3361042A (en) * 1965-05-28 1968-01-02 Earl F. Cutler Road surfacing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1523084A (en) * 1925-01-13 scheunemann
US1472888A (en) * 1922-02-09 1923-11-06 Moline Plow Company Inc Tractor attachment
US2196205A (en) * 1938-06-29 1940-04-09 Benjamin H Flynn Tamping and/or mixing machine
US2254463A (en) * 1939-06-13 1941-09-02 Spears Wells Machinery Company Means for constructing and reconstructing road surfaces
US2747475A (en) * 1950-12-04 1956-05-29 West Frederick Charles Road planing machines
US3361042A (en) * 1965-05-28 1968-01-02 Earl F. Cutler Road surfacing

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129398A (en) * 1975-12-05 1978-12-12 Walter Schoelkopf Method and apparatus for plastifying and tearing up of damaged road-surfaces and covers
DE2643789A1 (de) * 1976-09-29 1978-03-30 Reinhard Wirtgen Maschine zum aufbringen von strassenbelaegen
US4402629A (en) * 1980-06-05 1983-09-06 Resonant Technology Company Resonantly driven pavement crusher
US4515408A (en) * 1981-12-10 1985-05-07 Resonant Technology Company Counterweight support for resonantly driven tool
US4560207A (en) * 1984-03-01 1985-12-24 Caterpillar Tractor Co. Method and apparatus for fragmenting asphalt
WO1985004681A1 (en) * 1984-04-11 1985-10-24 Nodest Vei A/S A method and apparatus for improving a base layer for road covering
US4752155A (en) * 1987-01-31 1988-06-21 Roadtec, Incorporated Paving machine having movable heater
US4784518A (en) * 1987-11-17 1988-11-15 Cutler Repaving, Inc. Double-stage repaving method and apparatus
EP0426892A1 (en) * 1989-11-03 1991-05-15 Chin-Po Lee Asphalt road resurfacing machine
US5791814A (en) * 1992-02-21 1998-08-11 Martec Recycling Corporation Apparatus for recycling an asphalt surface
WO1996027048A1 (de) * 1995-02-27 1996-09-06 Wacker Werke Gmbh & Co. Kg. Fahrzeug zur reparatur von fahrbahndecken
US5967695A (en) * 1995-02-27 1999-10-19 Wacker Werke Gmbh & Co. Kg Vehicle for repairing road surfaces
US6409424B1 (en) * 2000-06-13 2002-06-25 Francesco A. Crupi Asphalt rake with ride up capability
US6416249B1 (en) * 2000-06-13 2002-07-09 Francesco A. Crupi Mixing apparatus and method for blending milled asphalt with rejuvenating fluid
US6695530B2 (en) 2000-06-13 2004-02-24 Francesco A. Crupi Mixing apparatus and method for blending milled asphalt with rejuvenating fluid
US20050175412A1 (en) * 2002-04-11 2005-08-11 Enviro-Pave, Inc. Process and machinery for applying a layer of asphalt to a surface
US6769836B2 (en) 2002-04-11 2004-08-03 Enviro-Pave, Inc. Hot-in-place asphalt recycling machine and process
US7077601B2 (en) 2002-04-11 2006-07-18 Peter Lloyd Hot in-place asphalt recycling machine
US20080226392A1 (en) * 2002-06-14 2008-09-18 Enviro-Pave Inc. Hot-in-place asphalt recycling machine
US7470082B2 (en) 2002-06-14 2008-12-30 Enviro-Pave, Inc Hot-in-place asphalt recycling machine
US6813834B2 (en) * 2002-11-26 2004-11-09 Anderson Martin L Angled shank blade
US20040098865A1 (en) * 2002-11-26 2004-05-27 Anderson Martin L. Angled shank blade
WO2008111842A1 (en) * 2007-02-28 2008-09-18 Skanska Asfalt As System for applying asphalt surface with a receiving unit, a feeding unit, a surface treatment unit and a method for applying asphalt
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
US8714871B2 (en) 2009-01-02 2014-05-06 Heatwurx, Inc. Asphalt repair system and method
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
CN102677580A (zh) * 2012-06-08 2012-09-19 英达热再生有限公司 一种疏松耙及其在沥青路面就地热再生设备上的应用
CN102677580B (zh) * 2012-06-08 2014-11-05 英达热再生有限公司 一种疏松耙及其在沥青路面就地热再生设备上的应用
US8801325B1 (en) 2013-02-26 2014-08-12 Heatwurx, Inc. System and method for controlling an asphalt repair apparatus
USD700633S1 (en) 2013-07-26 2014-03-04 Heatwurx, Inc. Asphalt repair device
US9145650B2 (en) * 2013-10-10 2015-09-29 Alan Edward LeBlanc Scarifier
US20150102653A1 (en) * 2013-10-10 2015-04-16 Alan Edward LeBlanc Scarifier
US9915042B2 (en) 2015-11-16 2018-03-13 Cutler Repaving, Inc. Multiple burner zone controlled asphalt heating hood
CN108551836A (zh) * 2018-03-27 2018-09-21 重庆铜梁三丰生物肥料有限公司 除草机
US10774503B2 (en) 2018-04-23 2020-09-15 Caterpillar Inc. Motor grader with mid-mount scarifier system
CN113186785A (zh) * 2021-05-12 2021-07-30 交通运输部公路科学研究所 一种改进型沥青混凝土保温摊铺装置

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CA1045868A (en) 1979-01-09
IT1019457B (it) 1977-11-10
SE7410263L (sv) 1975-11-07
FR2270381A1 (xx) 1975-12-05
FR2270381B1 (xx) 1980-07-04
GB1482119A (en) 1977-08-03
CH581751A5 (xx) 1976-11-15
DE2441379A1 (de) 1975-11-20

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