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WO2001071097A1 - Pistolet a flamme de revetement des bordures de chaussee - Google Patents

Pistolet a flamme de revetement des bordures de chaussee Download PDF

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Publication number
WO2001071097A1
WO2001071097A1 PCT/US2000/024331 US0024331W WO0171097A1 WO 2001071097 A1 WO2001071097 A1 WO 2001071097A1 US 0024331 W US0024331 W US 0024331W WO 0171097 A1 WO0171097 A1 WO 0171097A1
Authority
WO
WIPO (PCT)
Prior art keywords
flame
sprayer
body portion
spray nozzle
curb
Prior art date
Application number
PCT/US2000/024331
Other languages
English (en)
Inventor
Thomas V. Kusilek
James P. Mcauley
Original Assignee
3M Innovative Properties Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 3M Innovative Properties Company filed Critical 3M Innovative Properties Company
Priority to AU2000271137A priority Critical patent/AU2000271137A1/en
Publication of WO2001071097A1 publication Critical patent/WO2001071097A1/fr

Links

Classifications

    • 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
    • E01C23/16—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings
    • E01C23/20—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings for forming markings in situ
    • E01C23/206—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings for forming markings in situ by applying fusible particulate material to the surface, e.g. by means of a gaseous stream

Definitions

  • the present disclosure relates to flame sprayer devices for use in spraying or painting roadways. More specifically, the present disclosure relates to flame sprayers that are particularly suited to spraying or painting curbs.
  • Pavement and curb markings alert drivers to road changes, and are used as delineators to facilitate the orderly flow of traffic.
  • Pavement markings include lane separation lines, edge lines, turn lane lines, school zones, parking lots, crosswalks, and many others.
  • Curb markings, painted on the side and top of curbs indicate bus stops, no parking zones, loading zones, fire lanes, fire hydrants, parking zones for the disabled, and many others. These markings, which often appear to be paint, are subject to environmental conditions, oil, grease, dirt, and wear, and the markings tend to lose their effectiveness over time. Accordingly, municipalities or other entities must maintain and frequently reapply markings.
  • flame-sprayer One common device for applying or reapplying markings is known in the art as a "flame-sprayer.”
  • the flame-sprayer ignites a fuel such as propane to heat a thermal powder sprayed from a nozzle.
  • the thermal powder is thus converted into a "paint” that readily adheres to a pavement surface.
  • Flame-sprayers have been used for decades as pavement markers. Flame-sprayers are easy to use and maintain, and are inexpensive to operate.
  • the nozzle is fixed so as to be directed downward and toward the pavement surface. An operator rolls the flame sprayer along the pavement as the flame sprayer sprays the pavement.
  • Flame sprayers are not effective at painting curbs.
  • the flame sprayer can paint the pavement proximate a curb, but is not designed to paint the curb itself, which is raised above the pavement surface.
  • municipalities or others use common painting techniques such as paint buckets and brushes, paint rollers, or handheld power-painter devices.
  • the techniques used to paint curbs are not as efficient as the flame sprayer for painting pavement surfaces.
  • the actual cost of painting a length of curb can be over twice the cost of spraying the same length of pavement.
  • Municipalities have long recognized the benefits of painting curbs, but have also long sought a way to reduce the high cost painting curbs.
  • Money saved in applying and reapplying curb markings can then be put to use in other state and municipal programs or returned to the taxpayer as a tax cut.
  • the present disclosure relates to examples of improved flame sprayers that are suitable for painting curbs.
  • the improved flame sprayers are easy and inexpensive to operate and maintain.
  • the cost of painting a length of curb with the improved sprayers can be up to half of the cost per same length of curb painted with prior art techniques. Accordingly, municipalities using the improved flame sprayers can realize substantial savings while maintaining traffic markings.
  • the flame sprayer includes a body portion having rollers, for example wheels, such that the flame sprayer can roll along a pavement or curb.
  • the flame sprayer also includes a spray nozzle that can be coupled to a thermal powder reservoir.
  • the powder is discharged along an imaginary axis, or the discharge axis, which extends from the spray nozzle.
  • the spray nozzle is connected to the body portion such that the discharge axis is angled outwardly and away from the side of the flame sprayer so that the nozzle is directed at the curb.
  • FIG. 1 shows a perspective view of an example of a flame sprayer constructed in accordance with the present invention.
  • Fig. 2 shows a plan view of the flame sprayer of Fig. 1.
  • Fig. 3 shows an elevation view of the flame sprayer of Fig. 1.
  • the disclosure relates to a flame sprayer for spraying curbs.
  • the disclosure including the figures, describes the raised pavement markers with reference to a few examples.
  • the scope of the invention is not limited to the few examples, i.e., the described embodiments of the invention. Rather, the scope of the invention is defined by the appended claims. Changes can be made to the examples, including alternative designs not disclosed, so as to still fall within the scope of the claims.
  • Fig. 1 shows an application of one example of a flame sprayer 10.
  • the flame sprayer 10 rolls along the surface of a pavement 12 and proximate a curb 14 and deposits a film or paint on the top and sides of the curb 14.
  • the flame sprayer includes a body portion 16, a frame 18 attached to the body portion 16, and a flame spray assembly 20 connected to the framel8, the body portion 16, or both.
  • the flame spray assembly 20 mixes a fuel such as propane with compressed air to make a high velocity combustible gas stream.
  • a thermal powder, often premixed with reflective glass spheres, is aspirated into the gas stream where the fuel mixture is ignited.
  • the fuel mixture is directed outwardly toward the curb 14 and not downwardly and directly at the pavement surface 12.
  • the resulting flame preheats the curb 14 and pavement 12 surface and deposits a film of molten thermal powder that hardens on the curb 14.
  • the flame sprayer 10 includes a body portion 16 attached to rollers 22.
  • the rollers 22 in the example are carriage wheels or semi-pneumatic rubber, ball bearing wheels. Other examples of rollers, such as tracks, or the like, are contemplated.
  • the wheels 22 in the example permit the flame sprayer 10 to roll along the pavement surface 12 in a selected direction of travel.
  • the operator stands proximate the backside 24 which is opposite the front side 26. Also identified on the figure is a longitudinal side 28 and body sides 29, 30. In the example, an operator will stand proximate the back side 24, grasp the handles 32, and push or pull the flame sprayer 10.
  • the flame sprayer 10 can also be self-propelled.
  • the body portion 16 of the example includes controls 34 that can include gauges, levers, valves, or the like, so the flame sprayer 10 can deposit the film on the curb 14.
  • the body portion 16 is also adapted to hold a propane gas tank, such as a typical twenty-pound tank.
  • the body portion is also adapted to be coupled to an air supply, such as an air hose connected to a remote air compressor.
  • the flame sprayer can travel forward, backward or turn, or the like, and the longitudinal side 28, and body sides 29, 30 in the example are generally along the direction of travel, or (approximately) tangential to the direction of travel (for descriptive purposes).
  • the body portion 16 is rectangular such that body side 29 is generally planar.
  • Other examples are contemplated where the body portion 16 is not rectangular or that the actual side 29 of the body portion 16 is not oriented to be tangential to or along the direction of travel. Examples of this are if the body portion was triangular, trapezoidal, rounded, and many others. In these cases, the longitudinal side is "associated" with the body portion.
  • an associated longitudinal side is a conceptual plane that is tangential to or along the direction of travel where that plane contacts the body portion, intersects the body portion, is coplanar with the body side or is merely proximate the body portion.
  • the longitudinal side 28 is proximate to the body portion 16.
  • the frame 18 is connected to the body portion 16.
  • Alternative flame sprayers need not include a frame.
  • the frame 18 of the example includes a leading member 19 and a trailing member 21, which are both generally perpendicular to the longitudinal side 30 and generally parallel to the pavement surface
  • a third wheel 23 is attached to the frame 18.
  • the frame is formed of steel welded and bolted together and to the body portion 16 and flame spray assembly 20.
  • the flame spray assembly 20 includes a spray nozzle 40 (shown in phantom) that is generally surrounded by a wind screen 42.
  • the flame sprayer 10 includes a thermal powder reservoir 44 that is attached to the spray nozzle 40.
  • the thermal powder reservoir can be remote from the flame prayer 10 but in communication with the spray nozzle 40.
  • the thermal powder reservoir 44 is a hopper 46.
  • the hopper 46 is in communication with a flow control valve 48.
  • the metering valve 50 is also connected to the flow control valve 48 and is operated by controls to provide a selected flow of thermal powder through the flow control valve 48 and into gun block 52.
  • Airline 54 and propane line 56 are connected to the gun block to mix with and aspirate the thermal powder in the gun block 52.
  • the gun block is in direct fluid communication with the spray nozzle 40.
  • a vibrator 58 connected to a second air line 60 is coupled to the gun block 52 to assist the flow of the aspirated thermal powder into the spray nozzle 40.
  • the spray nozzle 40 in the example terminates within wind screen 42.
  • a pilot 62 in communication with the propane tank via line 64, also terminates within the wind screen 42 (the wind screen includes an aperture 66 to light the pilot 62) and ignites the aspirated thermal powder mixture to form the film or paint.
  • An axis of discharge 68 is associated with the spray nozzle 40.
  • the axis of discharge, or discharge axis, 68 represents the main direction of the spray of thermal powder film from the spray nozzle 40.
  • the spray will spread away from the axis of discharge 68 as the thermal powder moves away from the spray nozzle 40.
  • the axis of discharge 68 can represent the main intended direction of discharge where the spray was focused, i.e., where the spray is aimed. (By analogy, the axis of discharge is similar to a line extending down the barrel of a shotgun).
  • the axis of discharge 68 follows and extends the line of the spray nozzle 40, but alternatives are contemplated. For example, if the nozzle 40 included a tip or elbow, or the like, that would direct the spray, the associated axis of discharge 68 would correspond to the direction of spray.
  • the spray nozzle 40 is attached to the sprayer 10 proximate the longitudinal side 28 so that the axis of discharge 68 intersects the longitudinal side 28.
  • the axis of discharge 68 also intersects the roadway proximate the curb 14.
  • the axis of discharge is considered to intersect the longitudinal side even when the spray nozzle extends through the longitudinal side 28 because the longitudinal axis is considered to be an imaginary line extending in the direction of spray and opposite the direction of spray.
  • the axis of discharge 68 is shown as perpendicular to the longitudinal side 28, i.e., "directly toward" the longitudinal side.
  • FIG 3 shows the axis of discharge 68 also pointing at an angle toward the surface 12, i.e., downward, so that the axis 68 also intersects the surface 12.
  • This configuration is referred to here as "directly toward and downward.” This configuration provides controlled and efficient spraying of curbs 14.
  • the angle between the pavement surface 12 and the axis of discharge 68 is approximately 54 degrees.
  • the spray nozzle can be pointed both forward and downward or also both rearward and downward such that the axis of discharge 68 intersects both the plane of the longitudinal side 28 and the plane of the surface 12.
  • the windshield 42 is shown as a horn having a first end 70 receiving the spray nozzle 40 and an opposite open end 72.
  • the wind screen 42 is adapted to be proximate the curb 14.
  • the wind screen 42 is an angular horn with a planar open end 72 that is generally perpendicular to the axis of discharge 68.
  • the wind screen shield 42 is attached proximate the longitudinal side 28 and at least a portion of the open end 72 is above the height of the curb 14.
  • the wind screen 42 is oriented to be directly toward and downward, but other configurations are possible, i.e., forward and downward or rearward and downward, or the like.
  • the open end need not be planar, and the horn can be other than angular. Alternatives include a formed open end with curved or angular sides to better mate with the curb 14.
  • An angled bracket 74 is used to connect the windshield 42 to the leading and trailing members 19, 21 respectively, of the frame 18 so that the open end 72 of the windshield 42 can be proximate the curb 14.
  • the angled bracket 74 is directly attached to the windshield 42 and to the leading and trailing members 19, 21 via spacers 76.
  • the spacers 76 create additional height to the wind screen 42. If the angled bracket is removed, the wind screen 42 can be attached directly to the leading and trailing members 19, 21 so the curb sprayer 10 becomes a pavement-only sprayer.
  • the angled bracket 74 includes side members 78 attached to the wind screen 42 and base members 80 that attach to the frame 18.
  • the side members 78 are angled upwardly from the base members 80 at approximately 26 degrees, although alternatives are contemplated.
  • the bracket is configured so that this angle is adjustable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Repair (AREA)

Abstract

Cette invention concerne des exemples de pistolets à flamme améliorés destinés au revêtement de bordures de chaussée. Le pistolet à flamme comprend une portion principale pourvue de rouleaux, notamment des roues, de sorte que le pistolet à flamme puisse rouler le long du trottoir ou de la bordure de chaussée. Ce pistolet à flamme comprend également une buse de pulvérisation pouvant être couplée à un réservoir de poudre thermique. Cette poudre est déchargée le long d'un axe imaginaire, ou de l'axe de décharge, qui s'étend à partir de la buse de pulvérisation. Cette buse de pulvérisation est reliée à la portion principale, de sorte que l'axe de décharge forme un angle extérieur et qui s'éloigne du côté du pistolet à flamme, afin que la buse soit dirigée vers la bordure de chaussée.
PCT/US2000/024331 2000-03-21 2000-08-31 Pistolet a flamme de revetement des bordures de chaussee WO2001071097A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2000271137A AU2000271137A1 (en) 2000-03-21 2000-08-31 Flame-sprayer for spraying curbs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US53267200A 2000-03-21 2000-03-21
US09/532,672 2000-03-21

Publications (1)

Publication Number Publication Date
WO2001071097A1 true WO2001071097A1 (fr) 2001-09-27

Family

ID=24122699

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/024331 WO2001071097A1 (fr) 2000-03-21 2000-08-31 Pistolet a flamme de revetement des bordures de chaussee

Country Status (2)

Country Link
AU (1) AU2000271137A1 (fr)
WO (1) WO2001071097A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1711658A1 (fr) * 2004-02-06 2006-10-18 George Jay Lichtblau Procede et appareil de marquage de routes
CN103556562A (zh) * 2013-11-18 2014-02-05 宁波市政工程建设集团股份有限公司 一种挤压式划线机
CN108360356A (zh) * 2018-02-02 2018-08-03 黄赐东 一种多功能划线机
CN111608405A (zh) * 2018-07-25 2020-09-01 张海 一种夏季建筑施工用混凝土养护覆膜装置及使用方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2401431A (en) * 1942-11-23 1946-06-04 J D Adams Mfg Company Painting machine
US2815983A (en) * 1951-02-23 1957-12-10 Hunt Process Company Highway stripe painting device
US3393615A (en) * 1966-07-18 1968-07-23 Minnesota Mining & Mfg Apparatus and method for applying fusible organic particulate in a coalesced film condition to a surface
US3874801A (en) * 1973-04-13 1975-04-01 Minnesota Mining & Mfg Apparatus for marking paved surfaces

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2401431A (en) * 1942-11-23 1946-06-04 J D Adams Mfg Company Painting machine
US2815983A (en) * 1951-02-23 1957-12-10 Hunt Process Company Highway stripe painting device
US3393615A (en) * 1966-07-18 1968-07-23 Minnesota Mining & Mfg Apparatus and method for applying fusible organic particulate in a coalesced film condition to a surface
US3874801A (en) * 1973-04-13 1975-04-01 Minnesota Mining & Mfg Apparatus for marking paved surfaces

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1711658A1 (fr) * 2004-02-06 2006-10-18 George Jay Lichtblau Procede et appareil de marquage de routes
EP1711658A4 (fr) * 2004-02-06 2008-11-26 Gjl Patents Llc Procede et appareil de marquage de routes
CN103556562A (zh) * 2013-11-18 2014-02-05 宁波市政工程建设集团股份有限公司 一种挤压式划线机
CN108360356A (zh) * 2018-02-02 2018-08-03 黄赐东 一种多功能划线机
CN111608405A (zh) * 2018-07-25 2020-09-01 张海 一种夏季建筑施工用混凝土养护覆膜装置及使用方法
CN111608405B (zh) * 2018-07-25 2021-09-10 华虹建筑安装工程集团有限公司 一种夏季建筑施工用混凝土养护覆膜装置及使用方法

Also Published As

Publication number Publication date
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