US3886011A - Apparatus and procedure for applying marking stripes - Google Patents
Apparatus and procedure for applying marking stripes Download PDFInfo
- Publication number
- US3886011A US3886011A US397245A US39724573A US3886011A US 3886011 A US3886011 A US 3886011A US 397245 A US397245 A US 397245A US 39724573 A US39724573 A US 39724573A US 3886011 A US3886011 A US 3886011A
- Authority
- US
- United States
- Prior art keywords
- tape
- bonding layer
- roller
- layer
- applying
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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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
- E01C23/18—Devices for marking-out, applying, or forming traffic or like markings on finished paving; Protecting fresh markings for applying prefabricated markings
- E01C23/185—Tape- or sheet-shape markers or carriers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
- Y10T156/1702—For plural parts or plural areas of single part
- Y10T156/1712—Indefinite or running length work
- Y10T156/1741—Progressive continuous bonding press [e.g., roll couples]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
- Y10T156/1788—Work traversing type and/or means applying work to wall or static structure
- Y10T156/179—Work traversing type and/or means applying work to wall or static structure with liquid applying means
Definitions
- ABSTRACT An apparatus associated with a motor driven vehicle capable of travelling on a road surface in a direction defined by the marking line to be formed on said surface, the apparatus comprising, in combination a device for placing on said road surface a primer or bonding layer of width larger than that of the tape which has a sticky tape-receiving upper surface, means including one or more rollers for applying and pressing a marking tape on the freshly formed and still sticky bonding layer, means for positioning a temporarily protective flexible or liquid film under said roller, such that the tape and the adjacent side portions of said sticky bonding layer will remain uncovered after the passage of the roller or rollers, and means for applying a further layer of sand 'on the uncovered portions of the bonding layer for minimizing its adhesive characteristics and allowing immediate accessibility of the marked road to traffic.
- the present invention is concerned with the art of forming traffic dividing and regulating lines on roadway pavements by applying on and adhesively securing to the road surface a marking material, said surface having been coated with a tape receiving under-layer (or primer layer) of a suitable, essentially bituminous, adhesive capable of quickly setting. More particularly, this invention is concerned with a new and improved apparatus for and a novel procedure of applying a marking tape material in such a manner that the accessibility of the marked roadway to traffic will hardly be discontinued.
- the sticky characteristic of the surface of the primer or bonding or tape-receiving layer (which is necessarily wider than the tape to be applied thereon) is of paramount importance for insuring the prompt adhesion of the tape.
- Such an adhesive characteristic leads, however, to serious drawbacks.
- the most recent compositions and procedures of forming such bonding layers provide for a very prompt setting thereof and for a nearly immediate stabilization of the tape thereon, the side portions of the layer, uncoated by the tape, maintain their noticeably sticky character for an undesirably long time.
- parts and fragments of such uncoated portions not only will stick on the surfaces of the roller or rollers employed for positioning and pressing the tape on the layer, but will also stick on the wheels of traffic vehicles thus damaging the marking, prejudicing the good adhesion of the tape edge portions, and spoiling the neat marginal definition of the traffic regulating line or marking.
- an apparatus including means for and a procedure comprising steps of (i) providing a temporarily protective film under the roller means arranged and employed for applying and pressing the tape material on a preliminarily and freshly applied bonding layer on the road surface, (ii) causing the portions of said layer, not coated by the tape, to be uncovered after the passage of said roller means, and (iii) applying on said uncovered portions a layer of essentially powdery or finely particulated material, such as sand, adapted to immediately stick on and be incorporated in the surface of said uncovered portions of the primer layer so that the undesirable sticky character thereof will be eliminated or minimized.
- FIG. 1 is a diagrammatical cross-sectional illustration of a marking tape applied according to the invention on a roadway pavement;
- FIG. 2 is a simplified longitudinal vertical sectional view of an apparatus embodying the principles of the invention, the structural details being omitted as easily conceivable, if individually considered, by those skilled in the art to which this invention appertains;
- FIGS. 3 to '7 inclusive are fragmentary sectional views and partly side views of several embodiments of the device provided for forming the said layer of powdery material, FIG. 6 being a cross-sectional view taken in the plane indicated at VI-VI in FIG. 5;
- FIG. 8 is a fragmentary view, seen in a direction parallel to that defined by the applied tape, of a preferred arrangement of said device.
- FIGS. 9 to 12 inclusive are diagrammatical perspective views of several arrangements adapted for positioning the said temporarily protective film under the said roller means.
- FIG. 1 there is shown a tape material 10 applied on and partially embedded into, according to prior art, a freshly applied bonding or primer layer 12 on a road surface S.
- the bonding layer 12 has a width Ls noticeably larger than the actual width Lm of the tape 10, so that precise relative lateral positioning of the tape and of the layer can be taken into account and compensated for.
- a further layer 14 of essentially powdery material, as sand, is then applied on the previously applied tape and bonding layer, spanning a width Lp larger than the width of the bonding layer.
- the feature of the provision for applying such a further layer 14 consists in the complete covering of the surface of the uncovered portions 125 of the bonding layer in order to minimize the sticky character thereof.
- the surface of said roller means and/or of the tape material are provisionally and temporarily protected by positioning a suitable film under said roller means as said latter means rollingly engages the marking tape being laid and pressed on the freshly formed primer layer.
- FIG. 2 illustrates a typical combination and arrangement of parts, components, and devices in an apparatus according to the principles of the invention and comprising a wheeled frame structure designed to be followed by a motor driven vehicle (not shown) on which the various sources of energy (electrical, pressurized fluids and so on) and storage means for the various materials to be applied on the road surface are located.
- a motor driven vehicle not shown
- sources of energy electrical, pressurized fluids and so on
- storage means for the various materials to be applied on the road surface are located.
- the illustrated apparatus comprises a tape applying roller 16 and a tape pressing roller 18, arranged for operating upstream of a suitable device D which is adapted to lay the bonding layer 12 on the road surface S.
- the direction of the motion of the apparatus is indicated as A.
- the temporary protective film consists of a thin film continuously unwound from a coil 22, guidedly passed under the rollers 16 and 18, and then taken-up in another coil 24, whose outer surface is frictionally engaged with the surface of roller 18 for taking-up such film at the speed at which the vehicle travels in direction A.
- This thin film 20 may consist of a thin continuous polyethylene strip, any other suitable plastic material or any non-plastic material, such as waxed paper.
- a metered stream of powdery material such as sand, is issued from the lower outlet 32 of a suitable feedbox connected to a known vibrator 34 and supplied through a duct 36 from a supply container 38.
- the flow of the stream 30 of sand can be preferably controlled discontinued by means of a plug 40 controlled by a fluid operated actuator 42.
- the means for discontinuing the flow of stream 30, such as the plug 40, are evidently actuated in proper phase relationship with the discontinuance of the bonding layer and marking tape application.
- Such a discontinuance is preferably achieved (according to the art) by discontinuing the supply of device D, raising the roller 16, supported by a rearwardly swingable brace 44 connected to an actuator 46, and operating a cutter device 48 which transversally cuts the marking tape 10.
- the device comprises a feedbox 52 adapted for storing a suitable amount 50 of sand.
- a stream of pressurized air is fed through a duct 54 controlled by a fluid actuated valv 56 at the bottom of the feedbox and the powdery material is carried in suspension through an outlet duct 58 to nozzle means 60.
- the stream 30 is metered by suitably adjusting the pressure and/or the rate of the pressurized air from duct 54.
- the feed rate of the stream 30 is controlled by rotary adjustment of a rotary slot-type valve 64 located at the bottom outlet of a feedbox 62, wherein the downward motion of the sand 50 can be insured by a vibrator (not shown).
- the feedbox 62 is provided with a grooved roller 66 located in its bottom outlet 68 and rotated via a gearing 70 by a suitably variable speed fluid or electric motor (not shown).
- the rate of flow of the stream 30 is metered by adjusting the rotary speed of the grooved roller 66. The rate may be discontinued by discontinuing such rotation.
- the stream 30 of sand is issued through a slot outlet 74 formed at the bottom of a feedbox 72 having a stationary bottom portion 76 downwardly converging over a vibratable slat portion 78 vibrated by a vibrator 82.
- Another vibrator 80 provides for proper downward motion of the sand 50 within the feedbox.
- the rate of flow of the stream 30 is adjusted by adjusting the speed and therefore the vibrational energy of vibrator 82.
- FIG. 8 provides an example of selective placement of the sand to provide the layer 14 (FIGS. 1 and 2) in the location of interest only.
- the controlled outlet means (such as that of FIGS. 5 and 6) comprise two separate parts whiich provide individually two streams 30a and 30b directed to cover with excess sand, the uncovered portions of the bonding layer. Such streams 30a and 30b are spaced by an interval I smaller than the width Lm of the tape 10.
- FIG. 9 illustrates an arrangement adapted for an apparatus of the type shown in FIG. 2.
- the polyethylene film 20 is supplied in direction B by a guide roller 86 under the applying roller 16 concurrently with the tape 10 and guided by a roller 84.
- FIG. 9 illustrates also that the film 20 might be advantageously wider than the width Lm of the tape or may at least partially cover the uncovered portions of the primer layer 12 (FIG. 1), so that the edges of the tape, in service on the road surface, will remain clean and neatly defined.
- FIG. 10 illustrates another embodiment in which the apparatus comprises one roller 16 which performs both the applying and the pressing of the tape 10.
- the film 20 is taken-up immediately rearwardly of said one roller in the direction C for being rewound.
- FIG. 11 illustrates a further embodiment.
- the protective film consists of a belt 88 driven in a closed loop about the applying and pressure roller 16 and a guide roller 90.
- the apparatus further comprises two or more pressure rollers (such as roller 18 of FIG. 2), the closed loop will circumscribe all the rollers of the apparatus.
- Suitable cleaning means such as a motor driven rotary brush 92, are provided for continuously cleaning the belt 88.
- Such a belt may consist of a suitable fabric of synthetic fibers, a fine mesh textile network, a fine net or screen of metallic wires, or also a flat flexible metallic or plastic band.
- FIG. 12 illustrates a still further embodiment for forming the protective film.
- the film is a liquid film continuously re-formed on the surface of roller 16 (or of the other rollers provided in the apparatus, if any) by means of wetting roller 94 made of spongy material and meteredly fed through a duct 96 and a rotary coupling 98 with a suitable liquid adapted to prevent or minimize the adhesion of bitumen-based compositions on the thus protected roller.
- a suitable liquid may consist of an aqueous solution of a soap or of another agent possessing surface activity, such as an alkyralic suphonate.
- the spongy wetting roller 94 can be rotated, for example, by the same roller 16 by means of a suitable transmission belt 100.
- the liquid film prevents dirt, bitumen fragments, and so on from sticking to the surface of the roller 16 (or of any other thus protected roller).
- the film, the dirt, and the fragments carried therein are continuously removed by suitably scraping means, such as a doctor blade 102, a rotary brush (such as that indicated at 92 in FIG. 11), or other suitable means. It has been found that the wetting of the uncovered portions 12s of the primer layer 12 (FIG. 1) does not prejudice the prompt penetration of the powdery material thereinto, but also facilitates the cleaning of the upper surface of the marking tape.
- a combination comprising means for placing a bonding layer on the road surface, said bonding layer having an adhesive upper surface when freshly formed; means including a first and second roller means for applying and pressing a marking tape of a width less than the width of said bonding layer onto said adhesive upper surface while the apparatus travels on the road surface; means for temporarily positioning a protective film intermediate said roller means and said marking tape and adhesive upper surface where said roller means contacts said marking tape and the adjacent uncovered lateral portions of said bonding layer; and means for depositing a layer of powdery material on at least said uncovered lateral portions so as to become embedded in the uncovered portions of said bonding layer to minimize the adhesiveness of said upper surface of the latter.
- said positioning means comprises a delivery coil, a take-up coil, and roller guide means positioned and driven for continuously supplying said film in the form of a thin strip of flexible material under said first roller means which engages said tape intermediate said roller means and said tape, and for concurrently continuously removing said film from above said tape downstream to said second roller means which presses on said tape.
- said positioning means further comprises a temporarily film forming strip of flexible material arranged in a closed loop circulating about said roller means which applies and presses said tape on said bonding layer, and cleaning means positioned for frictionally engaging the outer surface of said closed loop at a position spaced from the part of said loop adjacent to said tape for continuously removing from said strip any substance which may have been stuck on said strip where engaged with.
- said positioning means further comprises wetting means positioned for continuously applying and re-forming a liquid film on the surface of said roller means which applies and presses said tape on said bonding layer, and dirt and liquid film removing means engaging the surface of said roller means after said surface has engaged said applied tape and said uncovered portions of said bonding layer.
- said depositing means comprises a feedbox adapted to store a supply of said powdery material, said feedbox being connected to outlet means positioned above said uncovered portions of said bonding layer, downstream of said roller means which has applied and pressed said tape on said layer, and valve and metering means cooperatively associated with said outlet means for meteredly issuing streams of said powdery material from said outlet means onto said uncovered portions.
- a method of applying traffic lines and markings on a road surface comprising the steps of placing a bonding layer on the road surface, said layer having an adhesive upper surface when freshly formed; applying and pressing with rolling means a marking tape of a width less than the width of said layer onto said adhesive surface; temporarily positioning a protective film intermediaate said roller means and said tape and said adhesive surface to prevent contact of said roller means with the uncovered portions of said surface laterally of said tape; and depositing a layer of powdery material onto at least said uncovered portions for embedding in said uncovered portions of said upper surface of said bonding layer to minimize the adhesiveness of said upper surface.
- said temporarily protective film consists of a continuous thin strip of flexible material continuously fed under said roller means which applies and presses the tape on the bonding layer inermediate said roller means and said tape
- the step of positioning a protective film further includes the step of concurrently continuously taking-up said film from under said roller means which has pressed said tape onto said bonding layer.
- step of positioning said temporarily protective film includes the steps of forming a liquid film made of a solution of an agent having surface tension properties, continuously applying and re-forming said liquid film on 14.
- step of forming said stream of said includes the step of arranging mechanical means so as to cooperate with an outlet of a storage means wherein an amount of sand is stored.
- step of arranging mechanical means includes the step of vibrating said outlet of said storage means so as to cause said stream of sand to issue.
Abstract
Description
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US397245A US3886011A (en) | 1973-09-14 | 1973-09-14 | Apparatus and procedure for applying marking stripes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US397245A US3886011A (en) | 1973-09-14 | 1973-09-14 | Apparatus and procedure for applying marking stripes |
Publications (1)
Publication Number | Publication Date |
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US3886011A true US3886011A (en) | 1975-05-27 |
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ID=23570407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US397245A Expired - Lifetime US3886011A (en) | 1973-09-14 | 1973-09-14 | Apparatus and procedure for applying marking stripes |
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Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4030958A (en) * | 1976-08-09 | 1977-06-21 | Minnesota Mining And Manufacturing Company | Pavement-striping apparatus |
US4236950A (en) * | 1976-10-27 | 1980-12-02 | Ludwig Eigenmann | Road marking machine and method |
US4242173A (en) * | 1979-09-27 | 1980-12-30 | Minnesota Mining And Manufacturing Company | Pavement-marking tape application apparatus |
US4369001A (en) * | 1978-07-07 | 1983-01-18 | Ludwig Eigenmann | Method for forming highly retro-reflecting roadway surface marking |
US4597821A (en) * | 1983-08-26 | 1986-07-01 | Munro Alick R | Portable edge bander for hand held and table mounted operation |
US4684289A (en) * | 1986-06-13 | 1987-08-04 | Gnesa Edward C | Road coating method and apparatus |
US4708518A (en) * | 1985-07-23 | 1987-11-24 | Ludwig Eigenmann | Method of adhering a prefabricated marking strip to a roadway surface without having to treat the roadway surface and self-adhesive sealing strip itself |
US5114268A (en) * | 1991-01-18 | 1992-05-19 | Mac Stripers, Inc. | Apparatus for applying a traffic stripe to a road |
US5642962A (en) * | 1993-01-15 | 1997-07-01 | The Rainline Corporation | Apparatus for applying a night-visible traffic stripe to a road |
US5772359A (en) * | 1995-08-31 | 1998-06-30 | Minnesota Mining And Manufacturing Company | Self-propelled pavement marking tape applicator |
US5865943A (en) * | 1997-06-25 | 1999-02-02 | Minnesota Mining And Manufacturing Company | Apparatus for applying adhesive product to road barriers |
US6247872B1 (en) | 1999-02-12 | 2001-06-19 | The Rainline Corporation | Audible night-visible traffic stripe for a road and method and apparatus for making the same |
US6413013B1 (en) * | 1998-02-16 | 2002-07-02 | Julien Requena | Autonomous strip laying device |
US20060024133A1 (en) * | 2004-07-30 | 2006-02-02 | Aoi Techno. Service Kabushiki Kaisha | Waterproof sheet in-situ application machine |
US20100003079A1 (en) * | 2008-07-02 | 2010-01-07 | Roadvision Technologies, Inc. | Method of Installing Depressible Pavement Marker |
US20110229265A1 (en) * | 2010-03-19 | 2011-09-22 | 3M Innovative Properties Company | Pavement marking tape applicator |
US9284699B1 (en) | 2012-08-28 | 2016-03-15 | Ralph Arnold | Multi-mode tape-applying striping machine and methods |
US10865530B2 (en) | 2017-03-20 | 2020-12-15 | Epic Solutions, Inc. | Tape machine |
US11504732B1 (en) | 2019-05-01 | 2022-11-22 | Kurtis D. Scepaniak | Spray machine |
US11828029B2 (en) | 2020-09-23 | 2023-11-28 | Epic Solutions, Inc. | System for monitoring application of roadway marking tape |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1895045A (en) * | 1931-07-17 | 1933-01-24 | James L Moore | Method and means for marking surfaces |
US3101175A (en) * | 1959-09-23 | 1963-08-20 | Wald Ind Inc | Road striping machine with electronic sight |
US3262375A (en) * | 1963-03-04 | 1966-07-26 | Eigenmann Ludwig | Method of road surface marking |
US3286605A (en) * | 1964-09-30 | 1966-11-22 | Prismo Safety Corp | Apparatus and method for marking a surface |
-
1973
- 1973-09-14 US US397245A patent/US3886011A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1895045A (en) * | 1931-07-17 | 1933-01-24 | James L Moore | Method and means for marking surfaces |
US3101175A (en) * | 1959-09-23 | 1963-08-20 | Wald Ind Inc | Road striping machine with electronic sight |
US3262375A (en) * | 1963-03-04 | 1966-07-26 | Eigenmann Ludwig | Method of road surface marking |
US3286605A (en) * | 1964-09-30 | 1966-11-22 | Prismo Safety Corp | Apparatus and method for marking a surface |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4030958A (en) * | 1976-08-09 | 1977-06-21 | Minnesota Mining And Manufacturing Company | Pavement-striping apparatus |
US4236950A (en) * | 1976-10-27 | 1980-12-02 | Ludwig Eigenmann | Road marking machine and method |
US4369001A (en) * | 1978-07-07 | 1983-01-18 | Ludwig Eigenmann | Method for forming highly retro-reflecting roadway surface marking |
US4242173A (en) * | 1979-09-27 | 1980-12-30 | Minnesota Mining And Manufacturing Company | Pavement-marking tape application apparatus |
US4597821A (en) * | 1983-08-26 | 1986-07-01 | Munro Alick R | Portable edge bander for hand held and table mounted operation |
US4708518A (en) * | 1985-07-23 | 1987-11-24 | Ludwig Eigenmann | Method of adhering a prefabricated marking strip to a roadway surface without having to treat the roadway surface and self-adhesive sealing strip itself |
US4684289A (en) * | 1986-06-13 | 1987-08-04 | Gnesa Edward C | Road coating method and apparatus |
US5114268A (en) * | 1991-01-18 | 1992-05-19 | Mac Stripers, Inc. | Apparatus for applying a traffic stripe to a road |
US5642962A (en) * | 1993-01-15 | 1997-07-01 | The Rainline Corporation | Apparatus for applying a night-visible traffic stripe to a road |
US5772359A (en) * | 1995-08-31 | 1998-06-30 | Minnesota Mining And Manufacturing Company | Self-propelled pavement marking tape applicator |
US5865943A (en) * | 1997-06-25 | 1999-02-02 | Minnesota Mining And Manufacturing Company | Apparatus for applying adhesive product to road barriers |
US6413013B1 (en) * | 1998-02-16 | 2002-07-02 | Julien Requena | Autonomous strip laying device |
US6247872B1 (en) | 1999-02-12 | 2001-06-19 | The Rainline Corporation | Audible night-visible traffic stripe for a road and method and apparatus for making the same |
US20060024133A1 (en) * | 2004-07-30 | 2006-02-02 | Aoi Techno. Service Kabushiki Kaisha | Waterproof sheet in-situ application machine |
US7316521B2 (en) * | 2004-07-30 | 2008-01-08 | Aoi Techno Service Kabushiki Kaisha | Waterproof sheet in-situ application machine |
US20100003079A1 (en) * | 2008-07-02 | 2010-01-07 | Roadvision Technologies, Inc. | Method of Installing Depressible Pavement Marker |
US9534351B2 (en) * | 2008-07-02 | 2017-01-03 | Roadvision Technologies, Inc. | Method of installing depressible pavement marker |
US10443198B2 (en) | 2008-07-02 | 2019-10-15 | Roadvision Technologies, Inc. | Depressible pavement device |
US20110229265A1 (en) * | 2010-03-19 | 2011-09-22 | 3M Innovative Properties Company | Pavement marking tape applicator |
US9284699B1 (en) | 2012-08-28 | 2016-03-15 | Ralph Arnold | Multi-mode tape-applying striping machine and methods |
US10865530B2 (en) | 2017-03-20 | 2020-12-15 | Epic Solutions, Inc. | Tape machine |
US11504732B1 (en) | 2019-05-01 | 2022-11-22 | Kurtis D. Scepaniak | Spray machine |
US11828029B2 (en) | 2020-09-23 | 2023-11-28 | Epic Solutions, Inc. | System for monitoring application of roadway marking tape |
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Legal Events
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AS | Assignment |
Owner name: MINNESOTA MINING AND MANUFACTURING COMPANY, MINNES Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EIGENMANN, LUDWIG;REEL/FRAME:005179/0681 Effective date: 19890731 Owner name: MINNESOTA MINING AND MANUFACTURING COMPANY, MINNES Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EIGENMANN, LUDWIG;REEL/FRAME:005179/0667 Effective date: 19890731 Owner name: MINNESOTA MINING AND MANUFACTURING COMPANY, MINNES Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EIGENMANN, LUDWIG;REEL/FRAME:005179/0674 Effective date: 19890731 Owner name: MINNESOTA MINING AND MANUFACTURING COMPANY, MINNES Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EIGENMANN, LUDWIG;REEL/FRAME:005179/0653 Effective date: 19890731 |
|
AS | Assignment |
Owner name: MINNESOTA MINING AND MANUFACTURING COMPANY, MINNES Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EIGENMANN, LUDWIG;REEL/FRAME:005152/0337 Effective date: 19890731 |