US1737895A - Spray gun - Google Patents

Spray gun Download PDF

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Publication number
US1737895A
US1737895A US239232A US23923227A US1737895A US 1737895 A US1737895 A US 1737895A US 239232 A US239232 A US 239232A US 23923227 A US23923227 A US 23923227A US 1737895 A US1737895 A US 1737895A
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United States
Prior art keywords
tube
chamber
liquid
plate
liquid supply
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Expired - Lifetime
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US239232A
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Sachsenmaier Ervin Samuel
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DUNNING COMPRESSOR Co
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DUNNING COMPRESSOR CO
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Priority to US239232A priority Critical patent/US1737895A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2429—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle the carried liquid and the main stream of atomising fluid being brought together after discharge

Definitions

  • This present invention relates to a device for spraying paint or other liquid materlals Y by means of compressed air.
  • the principal object of the invention is the provision of a liquid supply tank and acompressed air nozzle, and conduit assemblies so arranged that the most etlicient results may be secured, which will be positive in its operation and which will have no parts to get out of order.
  • the invention consists in a device of the above type including an elongated chamber to which compressed air or other Huid is supplied, which chamber serves as the operating handle. At the head of this chamber is located a spring actuated exhaust valve adapted to be closed manually. Also in the head of the chamber is arranged a nozzle through which the compressed iiuid passes when the exhaust valve is closed.
  • the exhaust valve aperture being considerably larger than the aperture in the compressed fluid nozzle, theizidwill exhaust through the former rather than through the latter when the exhaust valve is unseated.
  • the liquid supply reservoir consists of a jar or the like provided with a screw cover apertured to receive the liquid or aspirator tube which extends from near the bottom of the jar through the cover and out through the top to a point in proximity to the restricted end of the compressed air nozzle.
  • a plate carrying the elongated compressed air chamber and the nozzle is detachably secured to the liquid reservoir top.
  • the upper portion of the liquid supply tube is threaded and provided with a longitudinal slot or keyway in which rides a key portion of the plate carrying the compressed air chamber. This eectively prevents the liquid tube from turning.
  • Figure l is a front sectional elevation of a device embodying my invention.
  • Fig. 3 is a sectional plan along the line 3-3 ofFig. 2.
  • the elongated compressed air chamber at 1 whichy serves as a handle for the device 'provided at its lower end with a tube2 to which the compressed air to operate the device is supplied.
  • the upper end of the chamber 1 is provided with an interior wall 3 having an aperture adapted to be closed bythe exhaust valve 4.
  • a port 5 communicating to the outside atmosphere.
  • the exhaust valve is provided with a button head 6 and includes acoil spring 7 which normally tends to keep the head 4 oif its seat.
  • a screw threaded closure 8 is provided in the top of the chamber 1 which carries the shank of the exhaust valve.
  • the compressed iluid nozzle 9 of a diameter smaller than the diameter of the exhaust aperture.
  • This nozzle 9 is provided with a restricted tip 10 as is customary in such constructions.
  • the reservoir adapted to contain the material 4to be sprayed may consist of a jar ⁇ 11 having a screw cap 12, the cap 12 being apertured to receive the liquid supply tube 13. This last named member extends from near the bottom of the jar 11 out through the top of the cap 12 and terminates in a restricted end portion 14 in proximity to the nozzle point- 10.
  • the tube 13 is provided with a longitudinal groove 15 in which rides the key 16 upon the plate 17 so that the supply tube is prevented from turning by these instrumentalities.
  • the plate 17 is secured to the top 12 of the jar 11 by solder, rivets or other suitable means.
  • the adjusting nutv20 which is held against the plate 17 by the tension ofthe spring 18.
  • the face of the adjusting nut 2O is concentric with the liquid tube 13 and the tension of the spring 18 holds the face of the nut 20 against the face of the plate 17 This keeps the liquid tube 13 always perpendicular to the face of the plate 17.
  • the tip 14 of the supply tube may be moved up or down as desired to produce the required character of spray.
  • the plate 17 is provided with an upwardly bent extension 21 to receive the end of the compressed air supply nozzle 9 and a further extension 22 to which the elongated compressed air supply chamber 1 is secured by means of the lange 2 3 and the nut 24. j
  • the ar 11 is filled with the desired liquid to be sprayed and compressed fluid supplied to the tube 2.
  • Compressed fluid now exhausts through the port 5 and no liquid is sprayed.
  • compressed air must pass through the nozzle 9 and over the tip 14 of the liquid tube 13 which aspirates liquid from the jar 11 and breaks the mass character of spray depending upon the relation of the tips 14 and 10.
  • the liquid tube 13 may be readily and quickly detached from the device for repair or replacement.
  • the cap may be removed which carrying the rest of the mechanism allowsthe operator to replenish his liquid supply nozzle extending from said chamber,
  • a spray gun comprising a compressed iluid chamber, a manually operated exhaust by-pass carried thereby, a compressed fluid a liquid supply tank, a liquid aspirator tube carried thereby, the tips of the compressed air nozzle and the liquid supply tube being in proximity to each other, a cap on the liquid supply tank, a spring encircling the liquid supply tube and below the cap a nut on the tube below the spring, a plate carrying the compressedizid chamber on top of the ca and an adjusting nut threaded to the liqui supply tube and engaging the plate, a key on said plate riding in a longitudinal keyway on the liquid supply tube whereby said tube is prevented from turning movement.
  • a spraying device comprising a liquid container having a removable top, a plate secured to the top and having an integral upwardly turned lug provided with an aperture,l said top and plate having coinciding apertures, an aspirating tube vertically adjustable in said apertures, said plate having an extension to one side of the container cover, a removably carried by said extension and forming a handle and having a portion extended above said extension, a blast pipe connected to said portion and having its forward portion passing through said aperture and-terminating adjacent the ⁇ upper end of the aspirating tube, said upper portion of the compressed air chamber having an exhaust port and valve means for controlling said port.
  • a spraying device in which the extension of the plate on the container top is provided with a slot to receive the compressed air chamber, and said chamber is provided with a shoulder engaging one face of the plate and a clamping nut engaging the other face.
  • a spray gun comprising a compressed fluid chamber, a manually operated exhaust by-pass carried thereby, a compressed fluid nozzle extending from said chamber, a liquid supply tank, a liquid aspirator tube carried thereby, the tips of the comressed air nozzle and the liquid supply tube ity to each other, a ca tank, a spring encirc tube and below the cap, low the spring, a plate carr pressed fluid chamber on top o on the liquid supply ing the liquid supply a nut on the tube being the comthe cap and an eing in proxim-

Description

Dec. 3, 1929. E. s. sAcHsENMAu-:R
SPRAY GUN Filed Dec. 10. 1927 Etty/a, E
GMM/mf Patented Dec. 3, 1929 UNITED STATES PATENT OFFICE ERVIN SAMUEL SACHSENMAIER, F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO DUNNING COMPRESSOR CO., OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA SPRAY GUN Application l'ed December 10, 1927. Serial No, 239,232.
This present invention relates to a device for spraying paint or other liquid materlals Y by means of compressed air.
The principal object of the invention is the provision of a liquid supply tank and acompressed air nozzle, and conduit assemblies so arranged that the most etlicient results may be secured, which will be positive in its operation and which will have no parts to get out of order.
To this end the invention consists in a device of the above type including an elongated chamber to which compressed air or other Huid is supplied, which chamber serves as the operating handle. At the head of this chamber is located a spring actuated exhaust valve adapted to be closed manually. Also in the head of the chamber is arranged a nozzle through which the compressed iiuid passes when the exhaust valve is closed. The exhaust valve aperture being considerably larger than the aperture in the compressed fluid nozzle, the luidwill exhaust through the former rather than through the latter when the exhaust valve is unseated.
The liquid supply reservoir consists of a jar or the like provided with a screw cover apertured to receive the liquid or aspirator tube which extends from near the bottom of the jar through the cover and out through the top to a point in proximity to the restricted end of the compressed air nozzle. A plate carrying the elongated compressed air chamber and the nozzle is detachably secured to the liquid reservoir top.
The upper portion of the liquid supply tube is threaded and provided with a longitudinal slot or keyway in which rides a key portion of the plate carrying the compressed air chamber. This eectively prevents the liquid tube from turning.
Beneath the liquid supply reservoir cover and surrounding the liquid supply tube is a coil spring held under compression by a nut threaded to the supply tube. A similarly threaded nut is threaded to the upper portion of the liquid supply tube which projects above the plate and by adjusting this nut the restricted bore of the liquid tube may be brought into or out of proximity to the Compressed fluid nozzle in order to produce the' arrangement, combination and constructiony of parts morefully described hereinafter and shown in the accompanying drawings, in which:-
Figure l is a front sectional elevation of a device embodying my invention.
lgig. 2 is a sectional detail of the supply tu e.
Fig. 3 is a sectional plan along the line 3-3 ofFig. 2.
Referring now to the embodiment illustrated, I have shown the elongated compressed air chamber at 1 whichy serves as a handle for the device 'provided at its lower end with a tube2 to which the compressed air to operate the device is supplied. The upper end of the chamber 1 is provided with an interior wall 3 having an aperture adapted to be closed bythe exhaust valve 4. A port 5 communicating to the outside atmosphere.
permits compressed air within the chamber 1 to escape when the exhaust valve 4 is removed from its seat. The exhaust valve is provided with a button head 6 and includes acoil spring 7 which normally tends to keep the head 4 oif its seat. When operating the device, the operator with his thumb depresses the button head 6, thus closing the aperture in the inner wall 3.
A screw threaded closure 8 is provided in the top of the chamber 1 which carries the shank of the exhaust valve.
Also secured in the head of the chamber 1 is the compressed iluid nozzle 9 of a diameter smaller than the diameter of the exhaust aperture. This nozzle 9 is provided with a restricted tip 10 as is customary in such constructions.
The reservoir adapted to contain the material 4to be sprayed may consist of a jar `11 having a screw cap 12, the cap 12 being apertured to receive the liquid supply tube 13. This last named member extends from near the bottom of the jar 11 out through the top of the cap 12 and terminates in a restricted end portion 14 in proximity to the nozzle point- 10.
The tube 13 is provided with a longitudinal groove 15 in which rides the key 16 upon the plate 17 so that the supply tube is prevented from turning by these instrumentalities.
The plate 17 is secured to the top 12 of the jar 11 by solder, rivets or other suitable means. On top of the plate 17 is located the adjusting nutv20 which is held against the plate 17 by the tension ofthe spring 18. The face of the adjusting nut 2O is concentric with the liquid tube 13 and the tension of the spring 18 holds the face of the nut 20 against the face of the plate 17 This keeps the liquid tube 13 always perpendicular to the face of the plate 17. At the same time by moving the adjusting nut 20 the tip 14 of the supply tube may be moved up or down as desired to produce the required character of spray.
The plate 17 is provided with an upwardly bent extension 21 to receive the end of the compressed air supply nozzle 9 and a further extension 22 to which the elongated compressed air supply chamber 1 is secured by means of the lange 2 3 and the nut 24. j
It is to be noted that by means of the instrumentalities preventing the liquid supply tube from turning and the adjusting nut 2O quick and accurate adjustment and alignment may be had and maintained between the `tube tip and the compressed air nozzle. This adjustment and alignment is necessary to produce an eicient device.
In operation the ar 11 is filled with the desired liquid to be sprayed and compressed fluid supplied to the tube 2. Compressed fluid now exhausts through the port 5 and no liquid is sprayed. Upon the operator manually closing the exhaust valve 4 by depressing the button 6 compressed air must pass through the nozzle 9 and over the tip 14 of the liquid tube 13 which aspirates liquid from the jar 11 and breaks the mass character of spray depending upon the relation of the tips 14 and 10.
It is to be noted that by removing the adjusting nut 20, the liquid tube 13 may be readily and quickly detached from the device for repair or replacement. When it is desired to refill the jar 11 the cap may be removed which carrying the rest of the mechanism allowsthe operator to replenish his liquid supply nozzle extending from said chamber,
' compressed air chamber into the desired adjusting nut threaded vto the liquid supply tube and engaging the plate.
2. A spray gun comprising a compressed iluid chamber, a manually operated exhaust by-pass carried thereby, a compressed fluid a liquid supply tank, a liquid aspirator tube carried thereby, the tips of the compressed air nozzle and the liquid supply tube being in proximity to each other, a cap on the liquid supply tank, a spring encircling the liquid supply tube and below the cap a nut on the tube below the spring, a plate carrying the compressed luid chamber on top of the ca and an adjusting nut threaded to the liqui supply tube and engaging the plate, a key on said plate riding in a longitudinal keyway on the liquid supply tube whereby said tube is prevented from turning movement.
3. A spraying device comprising a liquid container having a removable top, a plate secured to the top and having an integral upwardly turned lug provided with an aperture,l said top and plate having coinciding apertures, an aspirating tube vertically adjustable in said apertures, said plate having an extension to one side of the container cover, a removably carried by said extension and forming a handle and having a portion extended above said extension, a blast pipe connected to said portion and having its forward portion passing through said aperture and-terminating adjacent the` upper end of the aspirating tube, said upper portion of the compressed air chamber having an exhaust port and valve means for controlling said port.
4. A spraying device according to claim 3 in which the extension of the plate on the container top is provided with a slot to receive the compressed air chamber, and said chamber is provided with a shoulder engaging one face of the plate and a clamping nut engaging the other face.
In testimony whereof, I atlix my signature.
ERVIN SAMUEL SACHSENMAIER.
without cumbersome parts being in his way.
What I claim is: j
1. A spray gun comprising a compressed fluid chamber, a manually operated exhaust by-pass carried thereby, a compressed fluid nozzle extending from said chamber, a liquid supply tank, a liquid aspirator tube carried thereby, the tips of the comressed air nozzle and the liquid supply tube ity to each other, a ca tank, a spring encirc tube and below the cap, low the spring, a plate carr pressed fluid chamber on top o on the liquid supply ing the liquid supply a nut on the tube being the comthe cap and an eing in proxim-
US239232A 1927-12-10 1927-12-10 Spray gun Expired - Lifetime US1737895A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107058A (en) * 1960-01-07 1963-10-15 Vllbiss Company De Atomizer for preparing microscopic slides
US5046564A (en) * 1989-06-05 1991-09-10 Poulsen Thomas E High velocity fire fighting nozzle
US20030089367A1 (en) * 2001-11-12 2003-05-15 Riccardo Abate Device for washing nasal cavities and collecting catarrhal matter
EP1634652A1 (en) * 2004-09-13 2006-03-15 Ding Hwa Co. Ltd Cap with a suction type spray head

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107058A (en) * 1960-01-07 1963-10-15 Vllbiss Company De Atomizer for preparing microscopic slides
US5046564A (en) * 1989-06-05 1991-09-10 Poulsen Thomas E High velocity fire fighting nozzle
US20030089367A1 (en) * 2001-11-12 2003-05-15 Riccardo Abate Device for washing nasal cavities and collecting catarrhal matter
US7143763B2 (en) * 2001-11-12 2006-12-05 Flaem Nuova S.P.A. Device for washing nasal cavities and collecting catarrhal matter
EP1634652A1 (en) * 2004-09-13 2006-03-15 Ding Hwa Co. Ltd Cap with a suction type spray head

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