US1853636A - Spray gun - Google Patents

Spray gun Download PDF

Info

Publication number
US1853636A
US1853636A US372247A US37224729A US1853636A US 1853636 A US1853636 A US 1853636A US 372247 A US372247 A US 372247A US 37224729 A US37224729 A US 37224729A US 1853636 A US1853636 A US 1853636A
Authority
US
United States
Prior art keywords
cover
valve
liquid
air
spray gun
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
Application number
US372247A
Inventor
James E Perrin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DeVilbiss Co
Original Assignee
DeVilbiss Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DeVilbiss Co filed Critical DeVilbiss Co
Priority to US372247A priority Critical patent/US1853636A/en
Application granted granted Critical
Publication of US1853636A publication Critical patent/US1853636A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • 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
    • B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers
    • 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
    • B05B7/2432—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 and a secondary stream of atomising fluid being brought together in the container or putting the carried liquid under pressure in the container

Definitions

  • This invention relates to aspray'gun for use in spray painting and similar operations, and particularly in operations which are not conducted on a scale large enough to justify the provision of the most elaborate equipment.
  • Figure 1 is a vertical sectional view of the invention as applied to a small receptacle.
  • Figure 2 is a sectional view taken substantially on the line 2-2 of Figure 1.
  • the invention is applied to a liquid receptacle 3 havin .
  • a cap or cover 4 on the upper side of w ch is formed an air chamber 5 adapted to be connected to a suitable source of compressed an.
  • An air nozzle 6 is secured in the outlet end of the chamber 5 and is formed with a discharge port 7.
  • a vertically disposed liquid nozzle 8 end of a liquid conduit 9 extending through its inlet end near the v
  • the conduit ,9 is normally arranged so that the outlet from the nozzle 8 is slight- 1y below the center line of the air discharge port 7 through the inlet end of the conduit invention is adapted to be used the cover 4 and having bottom of the recep-' June 20, 1929.
  • the flow bf liquid through the nozzle 8 is controlled by a needle valve 10 cooperatively associated therewith.
  • the air nozzle 6 is preferably provided with lateral passageways'll terminating in oppositely disposed outlets 12 which are adapted to flatten the spray in a well-known manner.
  • the air chamber 5 is also in communication with the surface of the liquid in the receptacle 3, through a port 13. Such pressure on the surface of the liquid is desirable in connection with this type of spraying apparatus.
  • the latter is formed with a shank extending 9 and integrally connected with a' rod 14 which extends upwardly through the cover and terminates in a threaded end 15.
  • the nut 16 may be adjusted to limit, as desired, the extent to which the needle valve may be opened.
  • a trigger 18 is mountedadjacent the'handle 19 which constitutes a prolongation of the air chamber 5.
  • the inner end of this trigger is adapted to bear against a plunger 20 which extends through the cover 4 and rests against an abutment 21. formed by bending the rod 14 just below the inner surface of'the'cover.
  • the flow of air is con-' tinuous and the operation of the spray gun is controlled by opening or closing the needle valve by means of the trigger 18.
  • the needle valve is adapted to move vertically within the conduit 9 under the influence of the spring 17 or a comparatively slight pressure transmitted through the plunger 20, which is necessary to overcome the tension of the spring.
  • the closure of the needle valve prevents dripping of the liquid when the spray is shut off and also precludesthe possibility of stalling the motor.
  • a spray gun the combination 0f a receptacle cover, a liquid conduit extending upwardly through the cover and terminating at its upper end in a nozzle, an air conduit mounted on the cover and adapted to cooperate with the liquid nozzle to discharge a spray, a valve for said liquid conduit, an abutment beneath the cover and connected with 'said valve. and means for opening and closing said valve, said means including a. manually operable member extending through the cover into engagement with said abutment.
  • a liquid receptacle provided with a cover, a liquid conduit. and an air conduit secured to said cover and cooperatively arranged to discharge intersecting jets, a handle by which the receptacle and cover are supported, a valve associated with said liquid conduit, an abutment connected with the valve and disposed beneath the cover, a trigger adjacent said handle, and means reciprocably mounted in said cover and operable by said trigger to engage said abutment and actuate the valve.
  • a spray gun the combination with a receptacle cover, a liquid conduit extending n upwardly through the cover and terminating at its upper end in a nozzle, an air conduit mounted on the cover and adapted to cooperate with the liquid nozzle to discharge a spray, a valve controlling the flow through said liquid conduit, a said cover, a trigger operable to depress said plunger, means engageable by the plunger to open the valve, and means for closing said valve when the trigger isreleased.
  • a spray gun the combination of a receptacle cover, a liquid conduit extending upwardly through the cover and terminating at its upper end in a nozzle, an air conduit mounted on the coverand adapted to cooperate with the liquid nozzle to discharge a spray and also having a port through which pressure is communicated to the surface of the liquid to be sprayed, a valve controlling the flow through said liquid conduit, a reciprocable member mounted in the cover, a
  • trigger operable to depress said reciprocable member, means engageable by said recip-- rocable member, as it'is depressed, to open the valve, and means for again closlng said valve when the reciprocable member is released.

Description

SPRAY GUN Filed June 20, 1929 tacle.
Patented Apr. 12, 1932 JAMES E. rnanm, OF TOLEDO, OHIO,.ASSIGNOB TO THE DE vr'marss comramr, or
TOLEDO, OHIO, A CORPORATION OF OHIO SPRAY GUN Application filed This invention relates to aspray'gun for use in spray painting and similar operations, and particularly in operations which are not conducted on a scale large enough to justify the provision of the most elaborate equipment.
In spray guns as heretofore constructed, it has been customary to control the operation by means of an air valve which controls the flow of air from the compressor. In air compressors manufactured for sale at popular prices, the pressure developed is comparatively low and usually no safety valve is provided. If the air valve is closed for any length of time, therefore, the motor may become stalled. There isalso a tendency for some of the material to run out of the nozzle and drip, if the air is shut off, especially if a cross jet spray is used, with pressure in the receptacle.
It is primarily for the purpose of overcoming the foregoing objections that the present invention has been perfected. In this connection the invention also consists in various details of construction and combinations. of
elements, which will be more particularly explained in connection with the accompanying drawings, illustrating one embodiment thereof. I
Inthe drawingsz Figure 1 is a vertical sectional view of the invention as applied to a small receptacle.
Figure 2 is a sectional view taken substantially on the line 2-2 of Figure 1.
In its present embodiment, the invention is applied to a liquid receptacle 3 havin .a cap or cover 4, on the upper side of w ch is formed an air chamber 5 adapted to be connected to a suitable source of compressed an.- I
An air nozzle 6 is secured in the outlet end of the chamber 5 and is formed with a discharge port 7. Cooperating with the air nozzle is a vertically disposed liquid nozzle 8 end of a liquid conduit 9 extending through its inlet end near the v The conduit ,9 is normally arranged so that the outlet from the nozzle 8 is slight- 1y below the center line of the air discharge port 7 through the inlet end of the conduit invention is adapted to be used the cover 4 and having bottom of the recep-' June 20, 1929. Serial No. 372,247.
The flow bf liquid through the nozzle 8 is controlled by a needle valve 10 cooperatively associated therewith. The air nozzle 6 is preferably provided with lateral passageways'll terminating in oppositely disposed outlets 12 which are adapted to flatten the spray in a well-known manner. The air chamber 5 is also in communication with the surface of the liquid in the receptacle 3, through a port 13. Such pressure on the surface of the liquid is desirable in connection with this type of spraying apparatus.
In providing for the control of the spray by manipulation of the needle valve 10, the latter is formed with a shank extending 9 and integrally connected with a' rod 14 which extends upwardly through the cover and terminates in a threaded end 15. A nut 16, mounted on the threaded end 15, constitutes a seat for a spring .17 which normally holds the needle valve closed. The nut 16 may be adjusted to limit, as desired, the extent to which the needle valve may be opened.
Asa convenient means for controlling the opening of the needle valve, a trigger 18 is mountedadjacent the'handle 19 which constitutes a prolongation of the air chamber 5. The inner end of this trigger is adapted to bear against a plunger 20 which extends through the cover 4 and rests against an abutment 21. formed by bending the rod 14 just below the inner surface of'the'cover.
A spray gun constructed according to the with an air compressor of small capacity.v A comparatively small motor may be used and no safety valve is necessary. The flow of air is con-' tinuous and the operation of the spray gun is controlled by opening or closing the needle valve by means of the trigger 18. The needle valve is adapted to move vertically within the conduit 9 under the influence of the spring 17 or a comparatively slight pressure transmitted through the plunger 20, which is necessary to overcome the tension of the spring. The closure of the needle valve prevents dripping of the liquid when the spray is shut off and also precludesthe possibility of stalling the motor.
While I have shown and described in de tail the preferred embodiment of the invention, it is obvious that the same may be modified in various respects without departing from the scope of the invention as claimed.
What I claim is:
1. In a spray gun, the combination 0f a receptacle cover, a liquid conduit extending upwardly through the cover and terminating at its upper end in a nozzle, an air conduit mounted on the cover and adapted to cooperate with the liquid nozzle to discharge a spray, a valve for said liquid conduit, an abutment beneath the cover and connected with 'said valve. and means for opening and closing said valve, said means including a. manually operable member extending through the cover into engagement with said abutment. Q
2. In a spray gun, the combination of a liquid receptacle provided with a cover, a liquid conduit. and an air conduit secured to said cover and cooperatively arranged to discharge intersecting jets, a handle by which the receptacle and cover are supported, a valve associated with said liquid conduit, an abutment connected with the valve and disposed beneath the cover, a trigger adjacent said handle, and means reciprocably mounted in said cover and operable by said trigger to engage said abutment and actuate the valve.
.3. In a spray gun, the combination with a receptacle cover, a liquid conduit extending n upwardly through the cover and terminating at its upper end in a nozzle, an air conduit mounted on the cover and adapted to cooperate with the liquid nozzle to discharge a spray, a valve controlling the flow through said liquid conduit, a said cover, a trigger operable to depress said plunger, means engageable by the plunger to open the valve, and means for closing said valve when the trigger isreleased.
4. In a spray gun, the combination of a receptacle cover, a liquid conduit extending upwardly through the cover and terminating at its upper end in a nozzle, an air conduit mounted on the coverand adapted to cooperate with the liquid nozzle to discharge a spray and also having a port through which pressure is communicated to the surface of the liquid to be sprayed, a valve controlling the flow through said liquid conduit, a reciprocable member mounted in the cover, a
trigger operable to depress said reciprocable member, means engageable by said recip-- rocable member, as it'is depressed, to open the valve, and means for again closlng said valve when the reciprocable member is released.
In testimony whereof I have hereunto signed my name to this specification.
JAMES E. PERRIN.
plunger mounted in
US372247A 1929-06-20 1929-06-20 Spray gun Expired - Lifetime US1853636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US372247A US1853636A (en) 1929-06-20 1929-06-20 Spray gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US372247A US1853636A (en) 1929-06-20 1929-06-20 Spray gun

Publications (1)

Publication Number Publication Date
US1853636A true US1853636A (en) 1932-04-12

Family

ID=23467324

Family Applications (1)

Application Number Title Priority Date Filing Date
US372247A Expired - Lifetime US1853636A (en) 1929-06-20 1929-06-20 Spray gun

Country Status (1)

Country Link
US (1) US1853636A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577024A (en) * 1947-08-16 1951-12-04 Illinois Stamping & Mfg Co Sprayer nozzle
US2610895A (en) * 1949-08-10 1952-09-16 Sidney J Stone Adapter and handle for spray guns
US10342934B2 (en) * 2015-04-17 2019-07-09 Smbure Co., Ltd. Sprayer and spray control apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2577024A (en) * 1947-08-16 1951-12-04 Illinois Stamping & Mfg Co Sprayer nozzle
US2610895A (en) * 1949-08-10 1952-09-16 Sidney J Stone Adapter and handle for spray guns
US10342934B2 (en) * 2015-04-17 2019-07-09 Smbure Co., Ltd. Sprayer and spray control apparatus

Similar Documents

Publication Publication Date Title
US2380827A (en) Multiple spraying device
US2259215A (en) Spray gun
US2819928A (en) Apparatus for simultaneously discharging materials
US1643969A (en) Means for controlling the distribution of liquids
US2079933A (en) Spray gun
US1806784A (en) Spbayeb
US1777925A (en) Sprayer
US1853636A (en) Spray gun
US2558681A (en) Spraying device in combination with a differential control valve
US2091735A (en) Sprayer
US1986444A (en) mcintosh
US1843899A (en) Low-pressure spraying apparatus
GB508734A (en) Improvements in spray producers
US2613111A (en) Spraying apparatus
US1713902A (en) Sprayer attachment for vacuum cleaners
US2879925A (en) Atomizing apparatus
US1832570A (en) Spray device
US1786889A (en) Sprayer
US2754153A (en) Barthod
US2473933A (en) Sprayer nozzle
US1765398A (en) Sprayer
US1331465A (en) Automatic brush
US2034867A (en) Spray gun
US2764246A (en) Fire extinguishing apparatus
US1866285A (en) Spray apparatus