US3880356A - Portable pressurized paint gun - Google Patents

Portable pressurized paint gun Download PDF

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Publication number
US3880356A
US3880356A US33933173A US3880356A US 3880356 A US3880356 A US 3880356A US 33933173 A US33933173 A US 33933173A US 3880356 A US3880356 A US 3880356A
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United States
Prior art keywords
housing
paint
handle
gun
gas cartridge
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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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Inventor
Estal D Chandler
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Estal D Chandler
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Priority to US33933173 priority Critical patent/US3880356A/en
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Publication of US3880356A publication Critical patent/US3880356A/en
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Application status is Expired - Lifetime legal-status Critical

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24Spraying 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
    • B05B7/2402Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405Apparatus 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
    • B05B7/2416Apparatus 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 characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B05B9/0833Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising a compressed gas container, e.g. a nitrogen cartridge

Abstract

A modified spray paint gun carries a gas bomb in the handle, thereby making the gun more portable by being independent of a separate air supply. At the same time, the bomb loading means allows for conventional attachment of a separate air supply when so desired.

Description

[ Apr. 29 1975 United States Patent [1 1 Chandler 2,631,891 3/1953 Kochner et a1. 239/308 3.119.561 1/1964 239/308 X 1 PORTABLE PRESSURIZED PAINT GUN [76] Inventor:

um mm Cd 0a KH 50 67 99 H 74 40 41 J 700 90 33 Estal D. Chandler, 1205 N.

Cleveland, Cameron, Tex. 76520 Mar. 8, 1973 [22] Filed:

Primary E.\'aminerM. Henson Wood, Jr. Assistant ExaminerMichael Mar 21 Appl. No.: 339,331

Attorney, Agent, or Firm-Wayland D. Keith [57] ABSTRACT A modified spray paint gun carries a gas bomb in the [52] U.S. Cl. 239/308; 222/5; 239/526 [51] Int. B05b 7/02 handle, thereby making the gun more portable by M5 B 2 0 2 O2 6 82 O5 3 5 OOQL 5 B9 93 32 2 h c r a e S f 0 d l e i F m 5 1 being independent of a separate air supply. At the same time, the bomb loading means allows for conventional attachment of a separate air supply when so desired.

5 T N m n mm m mT ms e D E u N U M 5 239/308 X 239/308 X 2 Claims, 2 Drawing Figures PORTABLE PRESSURIZED PAINT GUN This invention relates to commercial painting accessories and more specifically to paint spray guns.

The principal object of this invention is to provide a spray gun in which the handle accepts a gas bomb in order to make the gun independent of a separate air supply. The bomb chamber has a piercing pin at the upper end and a threaded gas-tight closure at the lower end that serves two functions, namely, 1, retaining and piercing the bomb and, 2, provision for attachment of a conventional external air supply.

Another object of this invention is to provide a portable pressurized paint gun that is of simple construction, easy to use and recharge, quick to convert reliably to an external air supply and yet low in cost.

These and other objects will become evident upon a study of the following specification together with the accompanying drawing wherein:

FIG. 1 is an elevation view, partly broken away, of the paint gun in use with a gas cartridge or gas bomb;

FIG. 2 is a fragmentary view, partly in section, of the paint gun shown connected to an external air supply.

Referring to the figures, a portable pressurized paint gun 10, according to the invention, shows a housing 11 in which are recognized a conventional nozzle 12, a finger lever 13, spray controls 14 and 15, a throat 16 leading to a threaded cap 16A and a paint container 17.

The handle 18 is provided with a cylindrical chamber 19 leading to a passage 20 into housing 11. Passage 20 has supported therein centrally a piercing pin 21. At the lower end of handle 18 a closure 22 shows a threaded portion 23 mounting a button 24 at the upper end thereof, which closure has a body 25 which body terminates in a knurled ring 26. When threaded into handle 18, closure 22 is made pressure tight by inclusion of a pair of O-rings 27. An automobile tire type valve stem 28 is fitted into body 25 which prevents outward flow of air or gas through passage 29. From the valve a passage 29 leads to the interior chamber 19. A thread 28A on valve 28 accepts a connector 31 on an air hose 32.

Inspection of FIG. 1 will show how a gas cartridge or bomb may be dropped into chamber 19 and, by turning closure 22 home, the cartridge is pierced by pin 21 thereby supplying gas and paint to nozzle 12 under pressure by the use of controls l3, l4 and 15.

Since valve 28 is a check valve to prevent the escape of gas to atmosphere the gas pressure in chamber 19 cannot escape therethrough. However, when an external air supply is connected by attaching hose 32, the air under pressure will be directed to the conventional spray gun 10 when the cartridge 30 is removed.

The invention therefore combines the advantage of conventional air-supplied guns and that of independent portability by using replaceable cartridges.

In order to have control over the air volume or to be able to shut off the gun completely while changing the paint container, an air inlet control 34 is included in passage 20.

What I now claim is:

1. A portable, dual, pressurized paint gun, which paint gun comprises;

a. a housing.

1. a handle on said housing,

2. a valved passage through said housing,

3. a paint spray nozzle on said housing,

4. an air hose connected to said housing,

b. said handle having a chamber formed therein to receive a gas cartridge,

1. a closure forming a surge and dispensing control means within said handle to selectively regulate the flow of paint and pressure therethrough,

c. a paint container connected in fluid tight communication with the passage in said housing, so upon actuation of said controls the quantity of paint dispensed from said container can be regulated,

cl. said handle is provided with a gas cartridge piercing pin,

1. a threaded closure for said piercing operation,

e. an air inlet control means incorporated in the passage leading from the gas cartridge chamber to the spray gun controls for the purpose of controlling the air volume to the spray gun and to completely close off the air when the paint container is being changed.

2. A portable, dual, pressurized paint gun, which paint gun comprises;

a. a housing,

1. a handle on said housing,

2. a valved passage through said housing,

3. a paint spray nozzle on said housing,

4. an air hose connection on said housing,

b. said handle having a chamber formed therein to receive a gas cartridge,

1. a gas cartridge provided in said handle,

2. a closure forming a surge and dispensing control means within said handle to selectively regulate the flow of paint and pressure therethrough,

c. a paint container connected in fluid tight communication with the passage in said housing, so upon actuation of said controls, the quantity of paint dispensed from said container can be regulated,

d. said handle is provided with a gas cartridge piercing pin,

1. a threaded closure in said handle to close the chamber formed therein, said threaded closure being in contact relation with said gas cartridge to urge said gas cartridge against said piercing pin, when said threaded closure in in one position,

e. a gas inlet control means incorporated in the passage leading from the gas cartridge chamber to the spray gun controls for the purpose of controlling the'gas volume to the spray gun and to selectively close off the gas, when the paint container is being changed.

Claims (15)

1. A portable, dual, pressurized paint gun, which paint gun comprises; A. A HOUSING,
1. A HANDLE ON SAID HOUSING,
1. A THREADED CLOSURE FOR SAID PIERCING OPERATION, E. AN AIR INLET CONTROL MEANS INCORPORATED IN THE PASSAGE LEADING FROM THE GAS CARTRIDGE CHAMBER TO THE SPRAY GUN CONTROLS FOR THE PURPOSE OF CONTROLLING THE AIR VOLUME TO THE SPRAY GUN AND TO COMPLETELY CLOSE OFF THE AIR WHEN THE PAINT CONTAINER IS BEING CHANGED.
1. A CLOSURE FORMING A SURGE AND DISPENSING CONTROL MEANS WITHIN SAID HANDLE TO SELECTIVELY REGULATE THE FLOW OF PAINT AND PRESSURE THERETHROUGH, C. A PAINT CONTAINER CONNECTED IN FLUID TIGHT COMMUNICATION WITH THE PASSAGE IN SAID HOUSING, SO UPON ACTUATION OF SAID CONTROLS THE QUANTITY OF PAINT DISPENSED FROM SAID CONTAINER CAN BE REGULATED, D. SAID HANDLE IS PROVIDED WITH A GAS CARTRIDGE PIERCING PIN,
2. A VALVED PASSAGE THROUGH SAID HOUSING,
2. A VALVED PASSAGE THROUGH SAID HOUSING,
2. a closure forming a surge and dispensing control means within said handle to selectively regulate the flow of paint and pressure therethrough, c. a paint container connected in fluid tight communication with the passage in said housing, so upon actuation of said controls, the quantity of paint dispensed from said container can be regulated, d. said handle is provided with a gas cartridge piercing pin,
2. a valved passage through said housing,
2. A portable, dual, pressurized paint gun, which paint gun comprises; a. a housing,
3. A PAINT SPRAY NOZZLE ON SAID HOUSING,
3. a paint spray nozzle on said housing,
3. A PAINT SPRAY NOZZLE ON SAID HOUSING,
4. AN AIR HOSE CONNECTED TO SAID HOUSING, B. SAID HANDLE HAVING A CHAMBER FORMED THEREIN TO RECEIVE A GAS CARTRIDGE,
4. AN AIR HOSE CONNECTED TO SAID HOUSING, B. SAID HANDLE HAVING A CHAMBER FORMED THEREIN TO RECEIVE A GAS CARTRIDGE,
4. an air hose connection on said housing, b. said handle having a chamber formed therein to receive a gas cartridge,
US33933173 1973-03-08 1973-03-08 Portable pressurized paint gun Expired - Lifetime US3880356A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999038619A1 (en) * 1998-01-30 1999-08-05 Minnesota Mining And Manufacturing Company Modular system for atomizing a liquid and method of atomizing a liquid
US20050284963A1 (en) * 2004-06-28 2005-12-29 Tony Reedy Cordless, self-contained, handheld spray gun
US20070000952A1 (en) * 2003-10-17 2007-01-04 Gruenewald Frederick P Remote pressure system for portable whipped cream dispensers
US20080245895A1 (en) * 2004-02-04 2008-10-09 Noriaki Kumono Gas Ejection Device and Spraying Device
USD742016S1 (en) * 2014-03-05 2015-10-27 Wagner Spraytech Limited Rounded air horn
US9303416B1 (en) 2014-11-19 2016-04-05 Westpac Materials Spray apparatus
USD772380S1 (en) * 2015-08-12 2016-11-22 Chapin Manufacturing, Inc. Hose end sprayer
US9962719B2 (en) 2014-11-19 2018-05-08 Westpac Materials Spray apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1980464A (en) * 1931-05-08 1934-11-13 Guy A Yedd Paint spraying apparatus
US2362784A (en) * 1941-11-10 1944-11-14 Knapp Monarch Co Insecticide spray head valve
US2631891A (en) * 1948-04-20 1953-03-17 Knapp Monarch Co Pressure sprayer
US3119561A (en) * 1961-08-14 1964-01-28 Midland Pharmaceuticals Inc Medicine dispenser
US3197144A (en) * 1959-09-28 1965-07-27 Knapp Monarch Co Dispensing apparatus for ebullient liquids
US3508710A (en) * 1969-05-13 1970-04-28 Ethicon Inc Disposable plastic aspirator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1980464A (en) * 1931-05-08 1934-11-13 Guy A Yedd Paint spraying apparatus
US2362784A (en) * 1941-11-10 1944-11-14 Knapp Monarch Co Insecticide spray head valve
US2631891A (en) * 1948-04-20 1953-03-17 Knapp Monarch Co Pressure sprayer
US3197144A (en) * 1959-09-28 1965-07-27 Knapp Monarch Co Dispensing apparatus for ebullient liquids
US3119561A (en) * 1961-08-14 1964-01-28 Midland Pharmaceuticals Inc Medicine dispenser
US3508710A (en) * 1969-05-13 1970-04-28 Ethicon Inc Disposable plastic aspirator

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999038619A1 (en) * 1998-01-30 1999-08-05 Minnesota Mining And Manufacturing Company Modular system for atomizing a liquid and method of atomizing a liquid
US6056213A (en) * 1998-01-30 2000-05-02 3M Innovative Properties Company Modular system for atomizing a liquid
US20070000952A1 (en) * 2003-10-17 2007-01-04 Gruenewald Frederick P Remote pressure system for portable whipped cream dispensers
US20080245895A1 (en) * 2004-02-04 2008-10-09 Noriaki Kumono Gas Ejection Device and Spraying Device
US20050284963A1 (en) * 2004-06-28 2005-12-29 Tony Reedy Cordless, self-contained, handheld spray gun
US7350723B2 (en) * 2004-06-28 2008-04-01 Just A Simple Thing, Inc Cordless, self-contained, handheld spray gun
USD742016S1 (en) * 2014-03-05 2015-10-27 Wagner Spraytech Limited Rounded air horn
US9303416B1 (en) 2014-11-19 2016-04-05 Westpac Materials Spray apparatus
US9962719B2 (en) 2014-11-19 2018-05-08 Westpac Materials Spray apparatus
US10293350B2 (en) 2014-11-19 2019-05-21 Westpac Materials Spray apparatus
USD772380S1 (en) * 2015-08-12 2016-11-22 Chapin Manufacturing, Inc. Hose end sprayer

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