US2656217A - Low-pressure spray gun - Google Patents

Low-pressure spray gun Download PDF

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Publication number
US2656217A
US2656217A US208778A US20877851A US2656217A US 2656217 A US2656217 A US 2656217A US 208778 A US208778 A US 208778A US 20877851 A US20877851 A US 20877851A US 2656217 A US2656217 A US 2656217A
Authority
US
United States
Prior art keywords
spray gun
low
valve
pressure spray
reservoir
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
US208778A
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English (en)
Inventor
Roche Andre
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US2656217A publication Critical patent/US2656217A/en
Anticipated expiration legal-status Critical
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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
    • 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
    • B05B7/2478—Gun with a container which, in normal use, is located above the gun
    • 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
    • B05B7/2435—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 by parallel conduits placed one inside the other
    • B05B7/2437—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 by parallel conduits placed one inside the other and a secondary stream of atomising fluid being brought together in the container or putting the carried fluid under pressure in the container

Definitions

  • the object of the invention consists in the provision of a spraying apparatus which overcomes the above mentioned inconveniences and permits the use or low pressures equal to or not exceeding two hundred grammes per square centimeter for the spraying and spreading of paints of all viscosities, including tars.
  • the spray gun consists of a gun body having at its lower part an air inlet conduit l.
  • the external walls 2, 3 are shaped to form a butt.
  • This conduit l emerges into the upper horizontal part of the body having cylindrical passage means 4 extended by an outlet nozzle 5 with double distribution channels 6 and l for the spraying fluid.
  • a boss 8 on the body carries a pivoted two-arm operating lever actuating, by a push-rod Ill, an operating rod II mounted on a spindle l2 and terminated by a fork 13.
  • the rear part of the passage 4 receives a sleeve or ring it with a hermetically sealed adjusting screw l5, the central cavity l6 of which serves to guide the longitudinal obturating rod IT with air cular abutment l 8 and spring IS.
  • the front part Ila of the rod ll enters an air-tight conduit 24) and forms therewith an outlet valve communicating with an outlet conduit 22 in the body, said valve being urged into closed position by its spring loading.
  • On the upper part of the body is secured a circular support 23 having an airtight joint and carrying an hermetically sealed removable reservoir 25 retained by known tightening means.
  • the conduit 22 opens into the lower part of the reservoir, and serves to feed the sprayed liquid to the outlet valve.
  • a conduit 25 communicating with the passage 4 and the interior of the reservoir has an inlet needle-valve 26 actuated by the arm 21 of the operating handle 9, a return spring 23 being arranged between the ring 29 and the seat of the needle-valve to urge the valve 26 into open position.
  • Th reservoir 24 is filled in the normal way and afterwards fixed on to the support 23.
  • the low pressure compressed air enters the apparatus through the conduit I in the direction of the arrow A and is directed through the passage 4 towards the nozzle 5 and channels 6 and 1.
  • the spring l9 always tends, when the handle is released, to return the needle Ila on to its seat in the closed position and simultaneously force the handle into rest position to close the inlet valve.
  • the operating handle 9 through its arm 2'1, allows the disengagement of the needle 26 from its seat 29 in the direction of the arrow D by the spring 28.
  • the air under pressure contained in the passage 4 then enters through the conduit 25 and is distributed in the upper part of the reservoir 24.
  • the latter is subjected to a pressure F identical to that of the spraying fluid, and the sprayed liquid therein is propelled towards the valve conduit 26.
  • the pressure of the spraying fluid is thus added to the weight of the sprayed liquid.
  • a spray gun of the kind including a gun body having passage means and an outlet nozzle for the spraying fluid, a reservoir for the liquid to be sprayed mounted on the gun body, an outlet valve for the sprayed liquid arranged in the passage means and communicating with the reservoir, a longitudinally slidable valve stem for the outlet valve arranged in the passage means and spring-urged into closed position, an inlet valve for the reservoir arranged on the body and forming a communication between the passage means and the interior of the reservoir, and a movable valve member for the inlet valve spring-urged into open position;

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  • Nozzles (AREA)
US208778A 1950-07-27 1951-01-31 Low-pressure spray gun Expired - Lifetime US2656217A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2656217X 1950-07-27

Publications (1)

Publication Number Publication Date
US2656217A true US2656217A (en) 1953-10-20

Family

ID=9687623

Family Applications (1)

Application Number Title Priority Date Filing Date
US208778A Expired - Lifetime US2656217A (en) 1950-07-27 1951-01-31 Low-pressure spray gun

Country Status (5)

Country Link
US (1) US2656217A (US20080094685A1-20080424-C00004.png)
BE (1) BE499689A (US20080094685A1-20080424-C00004.png)
DE (1) DE841868C (US20080094685A1-20080424-C00004.png)
LU (1) LU30430A1 (US20080094685A1-20080424-C00004.png)
NL (1) NL82645C (US20080094685A1-20080424-C00004.png)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2792260A (en) * 1956-12-12 1957-05-14 Scovill Manufacturing Co Hose nozzle
US2886252A (en) * 1955-03-30 1959-05-12 Ehrensperger Carl Spray gun
US2887272A (en) * 1955-09-22 1959-05-19 Rosenthal Daniel Mixing device
US2918071A (en) * 1954-12-20 1959-12-22 Ajem Lab Inc Article washing apparatus
US3066872A (en) * 1960-03-03 1962-12-04 Frank R Kobee Viscous fluid applicator
US3786990A (en) * 1972-07-17 1974-01-22 Graco Inc Plural component gun
US5271537A (en) * 1992-08-14 1993-12-21 Johnson Charles W Foam dispensing device
US20030203117A1 (en) * 2002-04-26 2003-10-30 Degussa Ag Process for impregnating porous mineral substrates
US8944351B2 (en) 2011-05-06 2015-02-03 Saint-Gobain Abrasives, Inc. Paint cup assembly with an outlet valve
US9162240B2 (en) 2004-12-16 2015-10-20 Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasie Liquid container system for a spray gun
US9586220B2 (en) 2011-06-30 2017-03-07 Saint-Gobain Abrasives, Inc. Paint cup assembly
US10035156B2 (en) 2006-06-20 2018-07-31 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US10882064B2 (en) 2011-12-30 2021-01-05 Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs Convertible paint cup assembly with air inlet valve
US11040360B2 (en) 2006-06-20 2021-06-22 Saint-Gobain Abrasives, Inc. Liquid supply assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3103403C2 (de) * 1981-02-02 1989-02-02 De Limon Fluhme GmbH & Co, 4000 Düsseldorf Sprühdüse für Sprühschmieranlagen und deren Verwendung
DE4007080C2 (de) * 1990-03-07 1995-01-26 Heinz Dipl Ing Baumgart Vorrichtung zum Einbringen und Zerstäuben von förderbaren Medien, insbesondere in Feuerungsräume

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1777925A (en) * 1929-02-01 1930-10-07 August J Kollmann Sprayer
US1887969A (en) * 1929-09-18 1932-11-15 Vilbiss Co Spray gun
GB386101A (en) * 1925-12-12 1933-01-12 August Pahl Apparatus for producing coatings from lacquers, stand oils, lacquer paints, stand oil paints and rust protective paints
FR910416A (fr) * 1944-11-23 1946-06-06 Perfectionnements apportés aux pulvérisateurs, plus spécialement aux pistolets àpeinture

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB386101A (en) * 1925-12-12 1933-01-12 August Pahl Apparatus for producing coatings from lacquers, stand oils, lacquer paints, stand oil paints and rust protective paints
US1777925A (en) * 1929-02-01 1930-10-07 August J Kollmann Sprayer
US1887969A (en) * 1929-09-18 1932-11-15 Vilbiss Co Spray gun
FR910416A (fr) * 1944-11-23 1946-06-06 Perfectionnements apportés aux pulvérisateurs, plus spécialement aux pistolets àpeinture

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2918071A (en) * 1954-12-20 1959-12-22 Ajem Lab Inc Article washing apparatus
US2886252A (en) * 1955-03-30 1959-05-12 Ehrensperger Carl Spray gun
US2887272A (en) * 1955-09-22 1959-05-19 Rosenthal Daniel Mixing device
US2792260A (en) * 1956-12-12 1957-05-14 Scovill Manufacturing Co Hose nozzle
US3066872A (en) * 1960-03-03 1962-12-04 Frank R Kobee Viscous fluid applicator
US3786990A (en) * 1972-07-17 1974-01-22 Graco Inc Plural component gun
US5271537A (en) * 1992-08-14 1993-12-21 Johnson Charles W Foam dispensing device
US7611753B2 (en) * 2002-04-26 2009-11-03 Degussa Ag Process for impregnating porous mineral substrates
US20030203117A1 (en) * 2002-04-26 2003-10-30 Degussa Ag Process for impregnating porous mineral substrates
US9162240B2 (en) 2004-12-16 2015-10-20 Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasie Liquid container system for a spray gun
US10035156B2 (en) 2006-06-20 2018-07-31 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US11040360B2 (en) 2006-06-20 2021-06-22 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US11548018B1 (en) 2006-06-20 2023-01-10 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US11679399B2 (en) 2006-06-20 2023-06-20 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US8944351B2 (en) 2011-05-06 2015-02-03 Saint-Gobain Abrasives, Inc. Paint cup assembly with an outlet valve
US8998018B2 (en) 2011-05-06 2015-04-07 Saint-Gobain Abrasives, Inc. Paint cup assembly with an extended ring
US9335198B2 (en) 2011-05-06 2016-05-10 Saint-Gobain Abrasives, Inc. Method of using a paint cup assembly
US9586220B2 (en) 2011-06-30 2017-03-07 Saint-Gobain Abrasives, Inc. Paint cup assembly
US10882064B2 (en) 2011-12-30 2021-01-05 Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs Convertible paint cup assembly with air inlet valve

Also Published As

Publication number Publication date
DE841868C (de) 1952-06-19
NL82645C (US20080094685A1-20080424-C00004.png)
LU30430A1 (US20080094685A1-20080424-C00004.png)
BE499689A (US20080094685A1-20080424-C00004.png)

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