US2597573A - Spraying apparatus - Google Patents
Spraying apparatus Download PDFInfo
- Publication number
- US2597573A US2597573A US119255A US11925549A US2597573A US 2597573 A US2597573 A US 2597573A US 119255 A US119255 A US 119255A US 11925549 A US11925549 A US 11925549A US 2597573 A US2597573 A US 2597573A
- Authority
- US
- United States
- Prior art keywords
- shell
- nozzle
- spraying apparatus
- compressed air
- paint
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
- B05B12/32—Shielding elements, i.e. elements preventing overspray from reaching areas other than the object to be sprayed
- B05B12/36—Side shields, i.e. shields extending in a direction substantially parallel to the spray jet
Definitions
- This invention relates to new and useful improvements in structural refinements in spraying apparatus, particularly, paint spraying apparatus, and the principal object of the invention is to minimize if not altogether prevent lateral dispersion of spray after leaving the spraying nozzle, so that the operator is not "subjected to harmful effects of the dispersed pa-int particles and so that the spraying operation may be efiiciently and economically effected without undue loss.
- This object is achieved by the provision of means forwardly of the spraying nozzle for projecting an enclosing wall, so to speak, of compressed air around the paint spray emanating from the nozzle, the purpose of the enclosing wall of compressed air being to prevent or substantially minimize lateral dispersion of paint particles.
- One of the primary features of the invention therefore, resides in the structure of the means employed for projecting the wall of compressed air, while another feature lies in the provision of means for attaching the first mentioned means to the nozzle of a spray gun, or the like.
- Figure 5 is a, cross sectional view, taken substantially in the plane of the line 5-5 in Figure 3.
- the general reference character l0 designates a conventional spray gun having a nozzle l2, a paint container l4 and a compressed air supply hose It, as will be clearly apparent.
- the invention resides in the provision of a substantially frus'to-conical, open ended shell 18 which is disposed forwardly of the nozzle [2 and in axial alignment therewith, the minor or smaller end of the shell being positioned immediately adjacent the nozzle and surrounding the same in spaced relation, as indicated at 20 in Figure 3.
- the shell itself actually consists of spaced, co-axial inner and outer walls 22, 24 respectively, which afford therebetween an air chamber 26 having an annular outlet or mouth 28 disposed at the major or forward end of the shell, as will be clearly apparent from Figure 3.
- An annular gasket 30, or the like, is provided between the walls 22, 24 at the minor end of the shell, while an intermediate portion of the outer wall 24 is formed at diametrically opposite sides thereof with a. pair of openings 32 to accommodate tubular adaptors 34 which, in turn, project outwardly through suitable openings provided in an annular clamp 36 positioned on the outer wall of the shell.
- the clamp 36 is equipped with a suitable clamping screw 38 whereby it is rigidly retained in position on the shell, while the adaptors .34, communicating with the air chamber 26, are connected by suitable flexible tubes 40 to a control valve 42 which, in turn, is connected by a nipple 44 and a T 46 to the compressed air hose or line It.
- the mounting of the shell [8 on the gun I0 is eilected by the provision of a pair of straps 48 which are secured at one end to the adaptor 34 while their remaining end portions are in-' wardly offset so that they engage the outer surface of the nozzle [2 and are secured thereto by an annular clamp 50 provided with a clamping screw 52.
- the straps 48 are bendable so that they may accommodate nozzles of different diameters, and if desired, the clamp 50 may be provided in diametrically opposite portions thereof with suitable recesses 54 to accommodate the free end portions of the straps, as illustrated in Figure 5.
- the spray gun When the invention is placed in use, the spray gun is actuated in the conventional manner and by simply opening the valve 42, compressed air will be delivered through the tubes 40 and adaptors 34 into the air chamber 26, from which it will be discharged under considerable pressure through the outlet mouth 28 so that it provides a frusto-conical enclosing wall of compressed air around the paint spray emanating from the nozzle and traveling outwardly through the passage 56 defined by the inner wall 22 of the shell l8. In this manner, the sprayed particles of paint will be prevented from dispersing laterally by the enclosing wall of compressed air, and the advantages of the invention thus become clearly apparent.
- a paint sprayer In apparatus of the character described, a paint sprayer, a nozzle therefor, an elongated frustoconical open-ended shell disposed forwardly of said nozzle and in axial alignment therewith, the smaller end of said shell being positioned adja- 4 cent said nozzle and surrounding the same in spaced relationship, said frusto-conical shell comprising a pair of spaced walls forming an annular air chamber therebetween which is open at its outer end, means comprising a plurality of ports communicating with said air chamber and arranged circumferentially about said shell for admitting air under pressure thereto, tubular adapters projecting laterally from the shell and communicating with said'ports, conduit means communicating with said adapters and a source of compressed air for delivering air under pressure into said chamber for discharge through said open-end portion thereof, and means for adjustably fastening said shell to said paint sprayer nozzle, said last mentioned means comprising straps mounted on said adapters and extending rearwardly therefrom, and a clamp securing rear portions of said strap
Description
y 1952 J. 5. DE GROFF 2,597,573
SPRAYING APPARATUS Filed Oct. 5, 1949 2 SHEETSSHEET 1 In ventor Jerald 5. 0e Graft By @Maoifia y 1952 J. 5. DE GROFF 2,597,573
SPRAYING APPARATUS Filed 001;. 5, 1949 2 SHEETS-SHEET 2 I u ventar Jam/0' 5. 0e Graff WWW ma;
Patented May 20, 1952 TUNITED STATES PATENT OFFICE.
SPRAYING APPARATUS Jerald S. De Grofi, Little Genesee, N. Y.
Application October 3, 1949, Serial No. 119,255
This invention relates to new and useful improvements in structural refinements in spraying apparatus, particularly, paint spraying apparatus, and the principal object of the invention is to minimize if not altogether prevent lateral dispersion of spray after leaving the spraying nozzle, so that the operator is not "subjected to harmful effects of the dispersed pa-int particles and so that the spraying operation may be efiiciently and economically effected without undue loss.
This object is achieved by the provision of means forwardly of the spraying nozzle for projecting an enclosing wall, so to speak, of compressed air around the paint spray emanating from the nozzle, the purpose of the enclosing wall of compressed air being to prevent or substantially minimize lateral dispersion of paint particles.
One of the primary features of the invention, therefore, resides in the structure of the means employed for projecting the wall of compressed air, while another feature lies in the provision of means for attaching the first mentioned means to the nozzle of a spray gun, or the like.
Some of the advantages of the invention reside in its simplicity of construction, in its convenient and efficient operation, and in its adaptability to economical manufacture.
With the above more important objects and 3 stantially in the plane of the line 4-4 in Figure 2; and,
Figure 5 is a, cross sectional view, taken substantially in the plane of the line 5-5 in Figure 3.
Like characters of reference are employed to designate like parts in the specification and throughout the several views.
Referring now to the accompanying drawings in detail, the general reference character l0 designates a conventional spray gun having a nozzle l2, a paint container l4 and a compressed air supply hose It, as will be clearly apparent.
' 1 Claim. (Cl. 299-440) The invention resides in the provision of a substantially frus'to-conical, open ended shell 18 which is disposed forwardly of the nozzle [2 and in axial alignment therewith, the minor or smaller end of the shell being positioned immediately adjacent the nozzle and surrounding the same in spaced relation, as indicated at 20 in Figure 3.
The attachment of the shell to the spray gun will be hereinafter described, and it is to be noted that the shell itself actually consists of spaced, co-axial inner and outer walls 22, 24 respectively, which afford therebetween an air chamber 26 having an annular outlet or mouth 28 disposed at the major or forward end of the shell, as will be clearly apparent from Figure 3.
An annular gasket 30, or the like, is provided between the walls 22, 24 at the minor end of the shell, while an intermediate portion of the outer wall 24 is formed at diametrically opposite sides thereof with a. pair of openings 32 to accommodate tubular adaptors 34 which, in turn, project outwardly through suitable openings provided in an annular clamp 36 positioned on the outer wall of the shell.
The clamp 36 is equipped with a suitable clamping screw 38 whereby it is rigidly retained in position on the shell, while the adaptors .34, communicating with the air chamber 26, are connected by suitable flexible tubes 40 to a control valve 42 which, in turn, is connected by a nipple 44 and a T 46 to the compressed air hose or line It.
The mounting of the shell [8 on the gun I0 is eilected by the provision of a pair of straps 48 which are secured at one end to the adaptor 34 while their remaining end portions are in-' wardly offset so that they engage the outer surface of the nozzle [2 and are secured thereto by an annular clamp 50 provided with a clamping screw 52. It should be understood that the straps 48 are bendable so that they may accommodate nozzles of different diameters, and if desired, the clamp 50 may be provided in diametrically opposite portions thereof with suitable recesses 54 to accommodate the free end portions of the straps, as illustrated in Figure 5.
When the invention is placed in use, the spray gun is actuated in the conventional manner and by simply opening the valve 42, compressed air will be delivered through the tubes 40 and adaptors 34 into the air chamber 26, from which it will be discharged under considerable pressure through the outlet mouth 28 so that it provides a frusto-conical enclosing wall of compressed air around the paint spray emanating from the nozzle and traveling outwardly through the passage 56 defined by the inner wall 22 of the shell l8. In this manner, the sprayed particles of paint will be prevented from dispersing laterally by the enclosing wall of compressed air, and the advantages of the invention thus become clearly apparent.
Although the invention has been described and illustrated as being attached to the spray gun by the straps 48 and clamp 50, it is obvious that any other suitable attaching means may, of course, be employed.
It is believed that the use of the invention will be readily understood from the foregoing disclosure and accordingly, further description thereof at this point is deemed unnecessary.
While in the foregoing there has been shown and described, the preferred embodiment of this invention it is to be understood that minor changes in the details of construction, combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as claimed.
Having described the invention, what is claimed as new is:
In apparatus of the character described, a paint sprayer, a nozzle therefor, an elongated frustoconical open-ended shell disposed forwardly of said nozzle and in axial alignment therewith, the smaller end of said shell being positioned adja- 4 cent said nozzle and surrounding the same in spaced relationship, said frusto-conical shell comprising a pair of spaced walls forming an annular air chamber therebetween which is open at its outer end, means comprising a plurality of ports communicating with said air chamber and arranged circumferentially about said shell for admitting air under pressure thereto, tubular adapters projecting laterally from the shell and communicating with said'ports, conduit means communicating with said adapters and a source of compressed air for delivering air under pressure into said chamber for discharge through said open-end portion thereof, and means for adjustably fastening said shell to said paint sprayer nozzle, said last mentioned means comprising straps mounted on said adapters and extending rearwardly therefrom, and a clamp securing rear portions of said straps to said nozzle.
JERALD S. DE GROFF.
REFERENCES CITED- The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,219,642 Isaaos Mar. 20, 1917 2,029,337 Parker Feb. 4,1936 2,410,532 Tessier Nov. 5, 1946 2,438,471 Ball Mar. 23, 1948
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US119255A US2597573A (en) | 1949-10-03 | 1949-10-03 | Spraying apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US119255A US2597573A (en) | 1949-10-03 | 1949-10-03 | Spraying apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US2597573A true US2597573A (en) | 1952-05-20 |
Family
ID=22383396
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US119255A Expired - Lifetime US2597573A (en) | 1949-10-03 | 1949-10-03 | Spraying apparatus |
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Country | Link |
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US (1) | US2597573A (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1166316B (en) * | 1957-07-04 | 1964-03-26 | Gustav Hensel K G | For holding cables from certain carriers |
US3214103A (en) * | 1964-02-11 | 1965-10-26 | Kempthorne James Lewis | Spray gun head |
US3292859A (en) * | 1965-08-13 | 1966-12-20 | Polymer Eng Corp | Process and gun for use in application of particulate materials |
US3599876A (en) * | 1969-06-17 | 1971-08-17 | Henry E Kyburg | Safety air gun |
US3963180A (en) * | 1975-08-11 | 1976-06-15 | Spray Tech Corporation | Airless gun nozzle guard |
US4520949A (en) * | 1983-04-11 | 1985-06-04 | Champion Spark Plug Company | Protective housing for coating applicator |
US4744516A (en) * | 1985-08-22 | 1988-05-17 | J. Wagner Gmbh | Air aspirated cooling for spray guns |
US4779805A (en) * | 1982-10-13 | 1988-10-25 | Imperial Chemical Industries Plc | Electrostatic sprayhead assembly |
US4895306A (en) * | 1988-02-17 | 1990-01-23 | Whitehurst Jr Clarence D | Liquid trimmer shield accessory for herbicide spray heads |
US5170943A (en) * | 1990-06-21 | 1992-12-15 | M-B-W Inc. | High velocity pneumatic device |
US5280856A (en) * | 1992-08-04 | 1994-01-25 | Haggerty John W | Debris shield apparatus |
US5344076A (en) * | 1990-04-03 | 1994-09-06 | Anthony Mercurio | Hairspray applicator |
US6145756A (en) * | 1999-05-01 | 2000-11-14 | Kohls; Corwin | Gardening applicator for delivering liquid chemicals to selected vegetation |
US6318642B1 (en) * | 1999-12-22 | 2001-11-20 | Visteon Global Tech., Inc | Nozzle assembly |
WO2008047205A3 (en) * | 2006-10-18 | 2008-07-31 | Illinois Tool Works | Spray masks and line markers |
US11499326B2 (en) | 2019-09-05 | 2022-11-15 | Hosang Lee | Joint compound application assembly |
EP4098370A1 (en) * | 2021-06-02 | 2022-12-07 | Air Prod Formation | Device for protecting a liquid jet |
US11724273B1 (en) * | 2019-06-28 | 2023-08-15 | Edward Kukuruda | Measuring and marking system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1219642A (en) * | 1916-06-29 | 1917-03-20 | Joel L Isaacs | Sprayer. |
US2029337A (en) * | 1932-11-21 | 1936-02-04 | California Spray Chemical Corp | Nozzle |
US2410532A (en) * | 1944-03-04 | 1946-11-05 | Joseph D Tessier | Appliance for paint sprayers |
US2438471A (en) * | 1944-06-05 | 1948-03-23 | Briggs Mfg Co | Spraying apparatus |
-
1949
- 1949-10-03 US US119255A patent/US2597573A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1219642A (en) * | 1916-06-29 | 1917-03-20 | Joel L Isaacs | Sprayer. |
US2029337A (en) * | 1932-11-21 | 1936-02-04 | California Spray Chemical Corp | Nozzle |
US2410532A (en) * | 1944-03-04 | 1946-11-05 | Joseph D Tessier | Appliance for paint sprayers |
US2438471A (en) * | 1944-06-05 | 1948-03-23 | Briggs Mfg Co | Spraying apparatus |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1166316B (en) * | 1957-07-04 | 1964-03-26 | Gustav Hensel K G | For holding cables from certain carriers |
US3214103A (en) * | 1964-02-11 | 1965-10-26 | Kempthorne James Lewis | Spray gun head |
US3292859A (en) * | 1965-08-13 | 1966-12-20 | Polymer Eng Corp | Process and gun for use in application of particulate materials |
US3599876A (en) * | 1969-06-17 | 1971-08-17 | Henry E Kyburg | Safety air gun |
US3963180A (en) * | 1975-08-11 | 1976-06-15 | Spray Tech Corporation | Airless gun nozzle guard |
US4779805A (en) * | 1982-10-13 | 1988-10-25 | Imperial Chemical Industries Plc | Electrostatic sprayhead assembly |
US4520949A (en) * | 1983-04-11 | 1985-06-04 | Champion Spark Plug Company | Protective housing for coating applicator |
US4744516A (en) * | 1985-08-22 | 1988-05-17 | J. Wagner Gmbh | Air aspirated cooling for spray guns |
US4895306A (en) * | 1988-02-17 | 1990-01-23 | Whitehurst Jr Clarence D | Liquid trimmer shield accessory for herbicide spray heads |
US5344076A (en) * | 1990-04-03 | 1994-09-06 | Anthony Mercurio | Hairspray applicator |
US5170943A (en) * | 1990-06-21 | 1992-12-15 | M-B-W Inc. | High velocity pneumatic device |
US5280856A (en) * | 1992-08-04 | 1994-01-25 | Haggerty John W | Debris shield apparatus |
US6145756A (en) * | 1999-05-01 | 2000-11-14 | Kohls; Corwin | Gardening applicator for delivering liquid chemicals to selected vegetation |
US6443368B1 (en) | 1999-05-01 | 2002-09-03 | Corwin Kohls | Gardening applicator for delivering liquid chemicals to selected vegetation |
US6318642B1 (en) * | 1999-12-22 | 2001-11-20 | Visteon Global Tech., Inc | Nozzle assembly |
WO2008047205A3 (en) * | 2006-10-18 | 2008-07-31 | Illinois Tool Works | Spray masks and line markers |
US11724273B1 (en) * | 2019-06-28 | 2023-08-15 | Edward Kukuruda | Measuring and marking system |
US11499326B2 (en) | 2019-09-05 | 2022-11-15 | Hosang Lee | Joint compound application assembly |
EP4098370A1 (en) * | 2021-06-02 | 2022-12-07 | Air Prod Formation | Device for protecting a liquid jet |
FR3123577A1 (en) * | 2021-06-02 | 2022-12-09 | Air Prod Formation | liquid jet protection device |
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