US3145411A - Pressure fed liquid applicator - Google Patents

Pressure fed liquid applicator Download PDF

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Publication number
US3145411A
US3145411A US118968A US11896861A US3145411A US 3145411 A US3145411 A US 3145411A US 118968 A US118968 A US 118968A US 11896861 A US11896861 A US 11896861A US 3145411 A US3145411 A US 3145411A
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Prior art keywords
roller
paint
feeder
liquid
sleeve
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US118968A
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Donald M Fischer
David L Kayser
William L Kennedy
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Union Carbide Corp
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Union Carbide Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/02—Rollers ; Hand tools comprising coating rollers or coating endless belts
    • B05C17/03—Rollers ; Hand tools comprising coating rollers or coating endless belts with feed system for supplying material from an external source or with a reservoir or container for liquid or other fluent material located in or on the hand tool outside the coating roller
    • B05C17/0316—Rollers ; Hand tools comprising coating rollers or coating endless belts with feed system for supplying material from an external source or with a reservoir or container for liquid or other fluent material located in or on the hand tool outside the coating roller with pressurised or compressible container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/02—Rollers ; Hand tools comprising coating rollers or coating endless belts
    • B05C17/03—Rollers ; Hand tools comprising coating rollers or coating endless belts with feed system for supplying material from an external source or with a reservoir or container for liquid or other fluent material located in or on the hand tool outside the coating roller
    • B05C17/035—Rollers ; Hand tools comprising coating rollers or coating endless belts with feed system for supplying material from an external source or with a reservoir or container for liquid or other fluent material located in or on the hand tool outside the coating roller direct or indirectly to the outer surface of the coating roller
    • B05C17/0352—Rollers ; Hand tools comprising coating rollers or coating endless belts with feed system for supplying material from an external source or with a reservoir or container for liquid or other fluent material located in or on the hand tool outside the coating roller direct or indirectly to the outer surface of the coating roller indirectly, i.e. by using transfer means, e.g. pads, brushes, rollers or bands

Definitions

  • This invention relates to an applicator for liquids and refers more particularly to an applicator of the type wherein a liquid is supplied to the surface of a roller from an external liquid reservoir by pressure means. For reasons of convenience, the discussion of the invention will be particularly directed to paint applicators.
  • roller instead of a brush to apply paint to a surface has become a widespread practice.
  • the well known roller and method of applying paint wherein the roller is dipped in a pan or tray of paint is commonly practiced, but it is inconvenient with respect to the time consumed in pan rolling to obtain the desired distribution of paint on the roller, and the relative undesirability of operating from an open, spillable, pan of paint.
  • the prior art is replete with methods for applying paint to the surface of a roller.
  • hollow rollers are designed to be filled internally by hand and then sealed for use.
  • the paint is deposited on the surface of the roller by absorption through the material covering the roller surface.
  • problems which are encountered With this type roller are excessive filtration of the paint as it passes through the roller material, and the formation of undesirable paint bubbles on the surface of the roller.
  • the roller is excessively heavy due to the internal paint reservoir which must be carried.
  • rollers call for a distribution tube extending across the surface of the roller which permits the paint to be deposited directly on the external surface of the roller.
  • a roller disclosed in US. Patent 2,955,310 is provided with a manifold with spaced openings in pressure contact with the roller which permits paint to be applied directly to the surface of the roller, with a minimum of splattering.
  • a particular problem encountered with this type of roller is the tendency for the paint to be applied in streaks rather than uniformly on the surface to be painted.
  • all of the roller systems of the prior art have been found to possess some inherent disadvantages.
  • the principal object of this invention is to provide a pressure fed liquid applicator with improved means for initially depositing and distributing the liquid on the surface of a roller.
  • Another object of this invention is to provide a painting system wherein the paint is completely confined until it is deposited on the surface of an applicator.
  • Still another object of the invention is to provide a completely portable leak-proof and spill-proof painting system.
  • the applicator of the invention which comprises a rotatably mounted roller, a feeder member which may be in the form of a cylindrical tube adapted to be supplied with paint and which is provided with a rotatable sleeve of screen material mounted in longitudinal contact with said roller, and aperture means in said feeder member to allow paint to be deposited on the surface of said feeder member, and onto said sleeve and ultimately onto said roller when said sleeve rotates with said roller.
  • a completely portable painting system is provided by connecting the above-described applicator to a portable sealed paint container which is in communication with a portable pressure source.
  • FIG. 1 is a front elevational view partially in section, which illustrates an applicator embodying the invention in conjunction with a reservoir of paint and pressure means for delivering said paint to said applicator;
  • FIG. 2 is a view taken along the line 22 of FIG. 1 showing a feeder tube having a slot of increasing width;
  • FIG. 3 is a sectional view of another embodiment of the invention showing a feeder tube in which a passageway is provided diagonal to the axis of the feeder tube and in which the slot decreases in depth as it extends across the feeder tube.
  • a completely portable painting system which comprises a pressure source 10, in communication with a closed paint container 12, and a applicator 14 as its basic components.
  • Any pressure source 10 may be employed, a convenient source being a sealed container which contains a liquefied gas.
  • a shut-off valve 16 is provided between the pressure source 10 and the paint container 12 or, if desired, a conventional pressure regulator (not shown) may be used.
  • a flexible hose 18 connects the paint container 12 to a handle 20, provided with a conduit 21 and to which the paint applicator 14 is attached.
  • a control valve 22 is provided in the handle member 20.
  • a conduit and support member 24 connects the handle 20 to a hollow end fitting 26 provided on the applicator 14.
  • a roller 28 is rotatably mounted on a shaft 30 attached to the end fitting 26. Also mounted on the end fitting 26, is a feeder tube 32 which is in communication with the conduit member 24.
  • a cylindrical sleeve 34 made of screen material is fitted over the feeder tube 32, and the sleeve 34 is in longitudinal contact-with the paint roller 28.
  • the passageway 33 in the feeder tube 32 is in communication with the surface of the feeder tube 32 by means of a longitudinal slot 40 which permits the paint which is fed to the feeder tube 32 to be deposited on the sleeve 34.
  • the sleeve 34 will rotate about the feeder tube 32 when the roller 28 is rotated due to its contact therewith.
  • small rings 36 are provided as sleeve-to-feeder tube hearings to minimize friction and permit the free rotation of the sleeve 34.
  • a bracket 38 seals the far end of the paint passages of the feeder tube 32 and aids in maintaining roller-to-screen contact.
  • the width of the slot 40 which connects the passageway 33 with the surface of the feeder tube 32 should be narrowest at the end which first receives the paint under the highest pressure, i.e., at end fitting 26 and it should become wider the further across the feeder tube 32 it extends to compensate for the pressure drop which is encountered as shown in FIG. 2.
  • the width of the slot 40 may be kept constant and instead the passageway 33 may be provided diagonally to the axis of the feeder tube or member 32' as shown in FIG. 3.
  • the depth of slot 40' should be greatest at the end which first receives the paint and least at the far end of the feeder tube 32. The greater slot depth, results in higher fluid friction, and thus compensates for the higher pressure at the feed end of the passageway 33.
  • Operation of the illustrated system is as follows: When the valve 16 is opened, the paint in the container 12 is pressurized due to the pressure source 10, and the paint will flow through the flexible hose 18 into the conduit 21 provided in the handle 20. When the valve 22 is opened, the paint will flow through the conduit member 24 into the end fitting 26 and subsequently into the passageway 33 of the feeder tube 32 from whence it passes to the screen sleeve 34 by means of the longitudinal slot 40.
  • the sleeve 34 being in contact with the roller 28, further aids to 3 effect uniform flow of paint onto the surface of the roller 28, for as explained above, when the roller 28 is rotated, the sleeve 34 will likewise rotate, and thereby a continuous supply of paint is provided across the surface of the roller 28.
  • the sleeve 34 performs a two-fold purpose. First, it aids in the even distribution of paint across the roller 28, and secondly, it confines excess paint between it and the slotted feeder tube 32, thereby preventing drippage. The latter is achieved by a proper selection of screen material in making the sleeve 34.
  • the applicator device of the invention is also well suited to the application of other liquid coatings such as for example, floor wax, white-wash, and varnish.
  • a liquid applicator comprising a handle, a support member secured to said handle; a roller rotatably mounted on said support member; a' cylindrical liquid feeder member fixedly mounted on said support member and extending parallel to said roller; said feeder member having a longitudinal passageway open at one end and closed at the other end and having a longitudinal slot connecting the passageway with the surface of said feeder member, the slot being located on theside of said feeder member facing said roller, the longitudinal slot being characterized by having a resistance to liquid flow which is uniform from one end to the other; a cylindrical sleeve of screen material rotatably mounted on and encircling said feeder member in engagement with the surface of said cylindrical member, said sleeve being in contact with said roller; and conduit means connecting the open end of said passageway with said pressurized liquid reservoir.
  • a liquid applicator comprising a conduit-handle member; a conduit-support-member secured to and in communication with said conduit-handle; a roller rotatably mounted on said conduit-support member; a cylindrical liquid feeder member of substantially smaller diameter than said roller fixedly mounted on said conduit-support member in close spaced parallel relationship to said roller, said liquid feeder member having a longitudinal passageway open at one end and closed at the other end and having a longitudinal slot located on the side facing said roller for connecting said passageway with the surface of said liquid feeder member, said longitudinal slot being characterized in having a uniform resistance to liquid fiow from one end to the other, said passageway being in communication with said conduit-support member; a cylindrical sleeve of screen material rotatably mounted on and encircling said liquid feeder member in engagement with the surface of said cylindrical member, said sleeve being in contact with said roller; a flexible hose in communication between said conduit-handle member and said pressurized liquid reservoir; and a manually activated valve to regulate the flow of liquid from said pressurized

Description

United States Patent 3,145,411 PRESSURE FED LIQUID APPLICATOR Donald M. Fischer, Buffalo, and David L. Kayser, Kenmore, N.Y., and William L. Kennedy, Noroton, Conn,
assignors to Union Carbide Corporation, a corporation of New York Filed June 22, 1961, Ser. No. 118,968 6 Claims. (Cl. -552) This invention relates to an applicator for liquids and refers more particularly to an applicator of the type wherein a liquid is supplied to the surface of a roller from an external liquid reservoir by pressure means. For reasons of convenience, the discussion of the invention will be particularly directed to paint applicators.
The use of a roller instead of a brush to apply paint to a surface has become a widespread practice. The well known roller and method of applying paint wherein the roller is dipped in a pan or tray of paint is commonly practiced, but it is inconvenient with respect to the time consumed in pan rolling to obtain the desired distribution of paint on the roller, and the relative undesirability of operating from an open, spillable, pan of paint.
The prior art is replete with methods for applying paint to the surface of a roller. For example, hollow rollers are designed to be filled internally by hand and then sealed for use. The paint is deposited on the surface of the roller by absorption through the material covering the roller surface. Among the problems which are encountered With this type roller are excessive filtration of the paint as it passes through the roller material, and the formation of undesirable paint bubbles on the surface of the roller. In addition, the roller is excessively heavy due to the internal paint reservoir which must be carried.
Other rollers call for a distribution tube extending across the surface of the roller which permits the paint to be deposited directly on the external surface of the roller. A roller disclosed in US. Patent 2,955,310 is provided with a manifold with spaced openings in pressure contact with the roller which permits paint to be applied directly to the surface of the roller, with a minimum of splattering. A particular problem encountered with this type of roller is the tendency for the paint to be applied in streaks rather than uniformly on the surface to be painted. Moreover, for one reason or another, all of the roller systems of the prior art have been found to possess some inherent disadvantages.
The principal object of this invention is to provide a pressure fed liquid applicator with improved means for initially depositing and distributing the liquid on the surface of a roller.
Another object of this invention is to provide a painting system wherein the paint is completely confined until it is deposited on the surface of an applicator.
Still another object of the invention is to provide a completely portable leak-proof and spill-proof painting system.
The above objects are accomplished by the applicator of the invention which comprises a rotatably mounted roller, a feeder member which may be in the form of a cylindrical tube adapted to be supplied with paint and which is provided with a rotatable sleeve of screen material mounted in longitudinal contact with said roller, and aperture means in said feeder member to allow paint to be deposited on the surface of said feeder member, and onto said sleeve and ultimately onto said roller when said sleeve rotates with said roller. A completely portable painting system is provided by connecting the above-described applicator to a portable sealed paint container which is in communication with a portable pressure source.
3,145,411 Patented Aug. 25, 1964 The invention will be more readily understood by reference to the accompanying drawing, wherein;
FIG. 1 is a front elevational view partially in section, which illustrates an applicator embodying the invention in conjunction with a reservoir of paint and pressure means for delivering said paint to said applicator;
FIG. 2 is a view taken along the line 22 of FIG. 1 showing a feeder tube having a slot of increasing width; and
FIG. 3 is a sectional view of another embodiment of the invention showing a feeder tube in which a passageway is provided diagonal to the axis of the feeder tube and in which the slot decreases in depth as it extends across the feeder tube.
Referring now to the drawing, a completely portable painting system is shown which comprises a pressure source 10, in communication with a closed paint container 12, and a applicator 14 as its basic components. Any pressure source 10 may be employed, a convenient source being a sealed container which contains a liquefied gas. A shut-off valve 16 is provided between the pressure source 10 and the paint container 12 or, if desired, a conventional pressure regulator (not shown) may be used. A flexible hose 18 connects the paint container 12 to a handle 20, provided with a conduit 21 and to which the paint applicator 14 is attached. A control valve 22 is provided in the handle member 20. A conduit and support member 24 connects the handle 20 to a hollow end fitting 26 provided on the applicator 14. A roller 28 is rotatably mounted on a shaft 30 attached to the end fitting 26. Also mounted on the end fitting 26, is a feeder tube 32 which is in communication with the conduit member 24. A cylindrical sleeve 34 made of screen material is fitted over the feeder tube 32, and the sleeve 34 is in longitudinal contact-with the paint roller 28. The passageway 33 in the feeder tube 32 is in communication with the surface of the feeder tube 32 by means of a longitudinal slot 40 which permits the paint which is fed to the feeder tube 32 to be deposited on the sleeve 34. The sleeve 34 will rotate about the feeder tube 32 when the roller 28 is rotated due to its contact therewith. Preferably, small rings 36 are provided as sleeve-to-feeder tube hearings to minimize friction and permit the free rotation of the sleeve 34. A bracket 38 seals the far end of the paint passages of the feeder tube 32 and aids in maintaining roller-to-screen contact.
In order to insure a more uniform deposit of paint on the sleeve 34, the width of the slot 40 which connects the passageway 33 with the surface of the feeder tube 32 should be narrowest at the end which first receives the paint under the highest pressure, i.e., at end fitting 26 and it should become wider the further across the feeder tube 32 it extends to compensate for the pressure drop which is encountered as shown in FIG. 2. Alternatively, the width of the slot 40 may be kept constant and instead the passageway 33 may be provided diagonally to the axis of the feeder tube or member 32' as shown in FIG. 3. The depth of slot 40' should be greatest at the end which first receives the paint and least at the far end of the feeder tube 32. The greater slot depth, results in higher fluid friction, and thus compensates for the higher pressure at the feed end of the passageway 33.
Operation of the illustrated system is as follows: When the valve 16 is opened, the paint in the container 12 is pressurized due to the pressure source 10, and the paint will flow through the flexible hose 18 into the conduit 21 provided in the handle 20. When the valve 22 is opened, the paint will flow through the conduit member 24 into the end fitting 26 and subsequently into the passageway 33 of the feeder tube 32 from whence it passes to the screen sleeve 34 by means of the longitudinal slot 40. The sleeve 34, being in contact with the roller 28, further aids to 3 effect uniform flow of paint onto the surface of the roller 28, for as explained above, when the roller 28 is rotated, the sleeve 34 will likewise rotate, and thereby a continuous supply of paint is provided across the surface of the roller 28.
The sleeve 34 performs a two-fold purpose. First, it aids in the even distribution of paint across the roller 28, and secondly, it confines excess paint between it and the slotted feeder tube 32, thereby preventing drippage. The latter is achieved by a proper selection of screen material in making the sleeve 34.
It will, of course, be appreciated that, the applicator device of the invention is also well suited to the application of other liquid coatings such as for example, floor wax, white-wash, and varnish.
We claim:
1. In combination with a pressurized liquid reservoir; a liquid applicator comprising a handle, a support member secured to said handle; a roller rotatably mounted on said support member; a' cylindrical liquid feeder member fixedly mounted on said support member and extending parallel to said roller; said feeder member having a longitudinal passageway open at one end and closed at the other end and having a longitudinal slot connecting the passageway with the surface of said feeder member, the slot being located on theside of said feeder member facing said roller, the longitudinal slot being characterized by having a resistance to liquid flow which is uniform from one end to the other; a cylindrical sleeve of screen material rotatably mounted on and encircling said feeder member in engagement with the surface of said cylindrical member, said sleeve being in contact with said roller; and conduit means connecting the open end of said passageway with said pressurized liquid reservoir.
2. The combination of claim 1 wherein said longitudinal slot is of constant depth and increasing width as it extends across said liquid feeder member away from said open end.
3. The combination of claim 1 wherein said longitudinal slot is of constant width and decreasing depth as it extends across said liquid feeder member away from said open end.
4. In combination with a pressurized liquid reservoir;
a liquid applicator comprising a conduit-handle member; a conduit-support-member secured to and in communication with said conduit-handle; a roller rotatably mounted on said conduit-support member; a cylindrical liquid feeder member of substantially smaller diameter than said roller fixedly mounted on said conduit-support member in close spaced parallel relationship to said roller, said liquid feeder member having a longitudinal passageway open at one end and closed at the other end and having a longitudinal slot located on the side facing said roller for connecting said passageway with the surface of said liquid feeder member, said longitudinal slot being characterized in having a uniform resistance to liquid fiow from one end to the other, said passageway being in communication with said conduit-support member; a cylindrical sleeve of screen material rotatably mounted on and encircling said liquid feeder member in engagement with the surface of said cylindrical member, said sleeve being in contact with said roller; a flexible hose in communication between said conduit-handle member and said pressurized liquid reservoir; and a manually activated valve to regulate the flow of liquid from said pressurized liquid reservoir.
5. The combination of claim 4 wherein said longitudinal slot is of constant depth and increasing width as it extends across said liquid feeder member away from said open end.
6. The combination of claim 4 wherein said longitudinal slot is of constant width and decreasing depth as it extends across said liquid feeder member away from said open end.
References Cited in the file of this patent UNITED STATES PATENTS 2,281,773 Kollmann May 5, 1942 2,860,359 James Nov. 18, 1958 3,030,652 Whitfield Apr. 24, 1962 FOREIGN PATENTS 562,761 Canada Sept. 2, 1958 903,913 Germany Feb. 11, 1954 905,236 Germany Mar. 1, 1954 1,236,218 France June 7, 1960

Claims (1)

1. IN COMBINATION WITH A PRESSURIZED LIQUID RESERVOIR; A LIQUID APPLICATOR COMPRISING A HANDLE, A SUPPORT MEMBER SECURED TO SAID HANDLE; A ROLLER ROTATABLY MOUNTED ON SAID SUPPORT MEMBER; A CYLINDRICAL LIQUID FEEDER MEMBER FIXEDLY MOUNTED ON SAID SUPPORT MEMBER AND EXTENDING PARALLEL TO SAID ROLLER; SAID FEEDER MEMBER HAVING A LONGITUDINAL PASSAGEWAY OPEN AT ONE END AND CLOSED AT THE OTHER END AND HAVING A LONGITUDINAL SLOT CONNECTING THE PASSAGEWAY WITH THE SURFACE OF SAID FEEDER MEMBER, THE SLOT BEING LOCATED ON THE SIDE OF SAID FEEDER MEMBER FACING SAID ROLLER, THE LONGITUDINAL SLOT BEING CHARACTERIZED BY HAVING A RESISTANCE TO LIQUID FLOW WHICH IS UNIFORM FROM ONE END TO THE OTHER; A CYLINDRICAL SLEEVE OF SCREEN MATERIAL ROTATABLY MOUNTED ON AND ENCIRCLING SAID FEEDER MEMBER IN ENGAGEMENT WITH THE SURFACE OF SAID CYLINDRICAL MEMBER, SAID SLEEVE BEING IN CONTACT WITH SAID ROLLER; AND CONDUIT MEANS CONNECTING THE OPEN END OF SAID PASSAGEWAY WITH SAID PRESSURIZED LIQUID RESERVOIR.
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4231668A (en) * 1978-10-05 1980-11-04 The Sherwin-Williams Company Liquid power driven coating apparatus
US4345544A (en) * 1981-02-25 1982-08-24 Besecker Jack J Apparatus for forming lines on an athletic playing field or court
EP0121211A1 (en) * 1983-03-31 1984-10-10 Erich Karlsen Apparatus for evacuating boiling and storage bags
US4550919A (en) * 1984-09-14 1985-11-05 Wagner Spray Tech Corporation Seal for a power fed roller
US4552477A (en) * 1978-08-09 1985-11-12 Black & Decker Inc. Apparatus for feeding a liquid to an applicator
US4583876A (en) * 1984-04-19 1986-04-22 Wagner Spray Tech Corporation Paint roller feeder
CN103752476A (en) * 2013-12-23 2014-04-30 天津应大股份有限公司 Glue brusher for manufacturing composite leather clothing

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2281773A (en) * 1941-04-28 1942-05-05 August J Kolimann Fluid applicator
DE903913C (en) * 1951-08-12 1954-02-11 Wilhelm Fleissner Multi-purpose ink roller with automatic ink feed
DE905236C (en) * 1951-10-31 1954-03-01 Max Witte Brush for applying and distributing paints
CA562761A (en) * 1958-09-02 S. Rosewall Paul Apparatus for cleaning paper for printing
US2860359A (en) * 1955-08-01 1958-11-18 Gertrude H James Moistener
FR1236218A (en) * 1959-09-08 1960-07-15 Automatic feeding device for the rolls to be painted
US3030652A (en) * 1959-07-29 1962-04-24 Whitfield William Allen Paint applying means

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA562761A (en) * 1958-09-02 S. Rosewall Paul Apparatus for cleaning paper for printing
US2281773A (en) * 1941-04-28 1942-05-05 August J Kolimann Fluid applicator
DE903913C (en) * 1951-08-12 1954-02-11 Wilhelm Fleissner Multi-purpose ink roller with automatic ink feed
DE905236C (en) * 1951-10-31 1954-03-01 Max Witte Brush for applying and distributing paints
US2860359A (en) * 1955-08-01 1958-11-18 Gertrude H James Moistener
US3030652A (en) * 1959-07-29 1962-04-24 Whitfield William Allen Paint applying means
FR1236218A (en) * 1959-09-08 1960-07-15 Automatic feeding device for the rolls to be painted

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4552477A (en) * 1978-08-09 1985-11-12 Black & Decker Inc. Apparatus for feeding a liquid to an applicator
US4231668A (en) * 1978-10-05 1980-11-04 The Sherwin-Williams Company Liquid power driven coating apparatus
US4345544A (en) * 1981-02-25 1982-08-24 Besecker Jack J Apparatus for forming lines on an athletic playing field or court
EP0121211A1 (en) * 1983-03-31 1984-10-10 Erich Karlsen Apparatus for evacuating boiling and storage bags
US4583876A (en) * 1984-04-19 1986-04-22 Wagner Spray Tech Corporation Paint roller feeder
US4550919A (en) * 1984-09-14 1985-11-05 Wagner Spray Tech Corporation Seal for a power fed roller
CN103752476A (en) * 2013-12-23 2014-04-30 天津应大股份有限公司 Glue brusher for manufacturing composite leather clothing

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