US3604602A - Liquid supply container for an atomizing spray gun - Google Patents

Liquid supply container for an atomizing spray gun Download PDF

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Publication number
US3604602A
US3604602A US3604602DA US3604602A US 3604602 A US3604602 A US 3604602A US 3604602D A US3604602D A US 3604602DA US 3604602 A US3604602 A US 3604602A
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Prior art keywords
plug
nipple
conducting
liquid
bore
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Expired - Lifetime
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Aaron Lee
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CHEMAIR CORP OF AMERICA
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CHEMAIR CORP OF AMERICA
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/14Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/32Dip-tubes

Abstract

A substantially nonrefillable liquid container for an atomizing spray gun having a nonremovable closure for retaining a supply of liquid under the pressure of a remote supply of a gas propellant connected to the container with a closure insert detachably secured to the closure for removably connecting flexible tubes to the source of pressurized propellant conducting the liquid and propellant to the spray gun.

Description

United States Patent 7 O O 4 l 2 2 2 [72] Inventor Aaron Lee 2,848,130 8/1958 Jesnig........................... Miami Beach, Fla. 3,090,530 5/1963 Peeps [21] App]. No. 802,505 3,208,639 9/1965 Marwell et al. [22] Filed Feb. 26, 1969 3g i i f A Primary Examiner-Robert B. Reeves 1 sslgnee Hi i 0 menca Assistant E.mminer-Norman L. Stack, Jr.

8 ea Anon 1ey Jay M. Cantor [54] LIQUID SUPPLY CONTAINER FOR AN ATOMIZING SPRAY GUN 3 Claims, 10 Drawing Figs.

[51] Int. ABSTRACT: A substantially fln bh li id container f [50] Field of 222/395, 399, 400.7, 529; 215/47, 52, 79, 83, 85

References Cited UNITED STATES PATENTS an atomizing spray gun having a nonremovable closure for retaining a supply of liquid under the pressure of a remote supply of a gas propellant connected to the container with a closure insert detachably secured to the closure for removably connecting flexible tubes to the source of pressurized propellant conducting the liquid and propellant to the spray gun.

PATENTEDSEPMIQTI SHEET 1 OF 2 I NVEN TOR. AARON LEE PATENTEU SEP1 4|97l 3.604.602

sum 2 or 2 LIQUID SUPPLY CONTAINER FOR AN ATOMIZING SPRAY GUN This invention relates in general to a substantially nonrefillable container for retaining a liquid, such as cosmetic materials, and other liquids of a wide range of viscosities, under the pressure of a gas propellant for use with a spray gun for projecting an atomized spray of the liquid.

Prior to this invention the containers for holding pressurized liquids usually had pressure-resistant closure means which were readily removable for permitting the refilling of one container with different liquids and were normally provided with a flat bottom surface subject to accidental tipping with undesirable results by the liquid contamination of the propellant supply system, which containers are usually fabricated of metal subject to relatively high manufacturing cost.

The present invention overcomes the above objections and disadvantages by the provision of a pressure resistant unitary container made of plastic material by the low-cost blow-mold process and is provided with a hemispherical bottom portion for insertion in a socket for supporting the container in an upright position, thus preventing accidental tipping.

A principal object of the invention is the provision of a closure extension integral with the container into the bore of which a nonremovable plug is inserted for receiving a removable insert member for coupling gas propellant inlet and outlet tubes and a liquid outlet tube thereto for supplying an atomizing spray gun with pressurized gas propellant and liquid.

Another object of the invention is the provision of a quick removable cap for sealing said plug and said inlet member to the said closure extension.

These and other objects and advantages in one embodiment of the invention are described and shown in the following specification and drawings, in which:

FIG. I is a side elevation of a liquid container and closure therefor in reduced scale, with a portion thereof broken away, connected to a typical spray gun.

FIG. 2 is a top plan view of the container shown in FIG. 1.

FIG. 3 is a fragmentary enlarged cross-sectional view of the closure elements shown in FIG. 1 taken through section line 3-3, FIG. 2.

FIG. 4 is a fragmentary enlarged cross-sectional view of the closure elements of the container taken through section line 4-4, FIG. 2.

FIG. 5 is a fragmentary enlarged crosssectional view taken through section line 55, FIG. 1.

FIG. 6 is a fragmentary view of partially assembled elements shown in FIG. 3.

FIG. 7 is an exploded view of the closure elements shown in FIG. 1.

FIG. 8 is an enlarged perspective exploded view of the closure elements shown in FIG. 3.

FIG. 9 is a plan view of the closure cap for sealing the container shown in FIG. I for transport.

FIG. 10 is an enlarged cross-sectional view of the closure cap taken through section line 10-10, FIG. 9.

Referring to FIGS. 1 and 2, a pressure resistant cylindrical container 1 is preferably made of plastic material, such as polyethylene or polypropylene, by the blow-molding process, but not limited thereto. The container is provided with a hemispherical lower portion 2 for fitted engagement in a holder or socket 3, illustrated in broken lines, for the purpose of maintaining the container in vertical position when filled. The container has a coaxial neck 4 which is provided with external threads to receive a threaded cap 5, which cap retains a plug and a cap insert assembly 6, to be hereinafter described. A flexible inlet tube 7 has one end connected to the cap insert assembly 6 and the opposite end connected to a source of pressurized gas propellant, not shown, such as compressed air. A flexible liquid outlet tube 8 is detachably connected at one end to dip tube 9, which extends in close proximity to the bottom of the container. The opposite end connects to a spray gun assembly 10 which includes a manually operated spray nozzle 11 projecting therefrom. Another flexible tube 12, connected to insert assembly 6, carries the pressurized gas propellant or air above the liquid in the container to the gun assembly 10, as shown.

Referring to FIG. 3, a generally cylindrical hollow bifurcated plug 13, molded from resilient plastic material such as polyethylene or nylon or other elastomer of predetermined flexibility, is snugly positioned within the neck 4 of the container and has a coaxial flange 14 with a washer 15, of resilient material, positioned between the flange I4 and the upper edge of the neck 4 forming a seal.

A pair of cavities or recess l6-16 are positioned in opposite sides of the plug for engagement by substantially hemispherical projections l7 in opposite sides of the innerwall of the neck 4. The plug also has a bifurcated lower portion formed by slots 18 in opposite sides of the lower portion thereof for inward flexing when inserted in the neck of the container.

It is now apparent from FIGS. 3 and 6 that the plug 13 is inserted in the neck 4 of the container at the lower edges of the bifurcated sides of the plug which will cam over the projections 17 and flex inwardly until the projections encounter and engage the recesses 16-16 which will permit the lower portion of the plug to assume its initial cylindrical shape and washer l5 assume its sealing position.

It is also apparent that the container is now substantially nonrefillable since the plug is difficult to remove without damage to either the neck or plug and the filling of the container through the small holes in the top of the plug is, for most intent and purpose, impractical.

The plug has an internal downward extending nipple 19 with a coaxial bore 20 through the top of the plug and the dip tube 9 is secured on the nipple 19, as shown in FIGS. 3 and 4.

Referring to FIG. 8, the plug has a pair of holes 21 and 22 through the top end thereof.

FIGS. 3 and 8 show a coupling insert 23, preferably molded of plastic material such as nylon, which has a downward extending nipple 24 which is slidably inserted in hole 21 of the plug 13, shown in FIG. 8. A coaxially upward extending nipple 25 has frictionally secured thereon the inlet tube 7.

A common bore 26 extends through nipples 24 and 25, as shown. The cap insert has a second downward extending nipple 27 and a coaxial upward extending nipple 28 with a common bore 29 through nipples 27 and 28. A third upward extending nipple 30 has attached thereto the liquid supply tube 8 connected to the gun assembly 10. Likewise, the air supply tube 12 is connected to nipple 28 for supplying the gas propellant to the gun 10.

Referring to FIGS. 3, 4, and 8, a gasket 31 of resilient material has holes 32, 33 and 34, which mate with bore 20 and holes 21 and 22.

FIGS. 3 and 4 show the closure of the container with the cap 5 threaded tightly on the neck of the container 4 wherein the flange of the plug 13 is secured and sealed between washer I5 and gasket 31 whereby a pressurized propellant fed through tube 7 will force liquid in the container through tube 8 into the gun assembly 10. Simultaneously, the tube 12 will conduct pressurized propellant into gun assembly 10 for completing the requirements for spraying by manually depressing nozzle 1 1.

When the container is empty, as illustrated in FIG. 7, the conducting tubes and the coupling insert are removed from the cap 5 by unscrewing the cap 5, as illustrated.

When additional containers of liquids are prepared for transit, and referring to FIGS. 9 and 10, a cap 35, preferably of plastic material, has internal threads to mate with the threads on the neck of the container and includes a compressible seal disc 36, which will bear upon the top surface of the plug 13 with a sealing washer l5 therebetween.

FIG. 8 shows the exploded relationship of elements described in FIGS. 3 and 4.

It is to be noted that because of low-cost manufacture and other obviously pertinent reasons, the container including the nonremovable plug 13 with the dip tube 9 is considered disposable.

This invention comprehends certain modifications in construction which come within the scope and teachings described.

Having described my invention, I claim:

1. A pressure-resistant liquid container for a spray gun with said container having an integral extension with a coaxial cylindrical bore therethrough terminating in an outer edge normal to the axis of said bore,

a lock projection integral with said extension extending a predetermined distance inward from each opposite side of the surface of said bore,

a hollow cylindrical plug of predetermined flexibility having a closed upper end and frictionally engaged in said bore including an integral outer end flange or predetermined thickness normal to the said axis and adjacent said outer edge of said extension,

a gas-propellant inlet hole through the said upper end of said plug,

a liquid-conducting outlet hole through said upper end of said plug adjacent said inlet hole and a liquid-conducting nipple having a coaxial hole therethrough extending downward from said upper end of said plug connecting said outlet hole with said coaxial hole through said nipple,

a dip tube with the upper end thereof connected to said liquid conducting nipple and extending downward with the lower end thereof in close proximity to the bottom of said container,

said plug having a bifurcated lower portion with an aperture in each branch for locking engagement with each corresponding said projection when each said opposite side is flexed inward by camming over each said projection when said plug is inserted in said bore whereby said plug will resist removal from said bore,

a tube-coupling insert having a body of predetermined thickness to mate with the upper surface of said plug,

a first propellant gas-conducting nipple integral with said body extending downward through said inlet hole in said a second propellant gas-conducting inlet nipple integral with and extending upward from said body with the bore therein coaxial with and joining the bore in said first gasconducting nipple,

a liquid-conducting outlet nipple integral with and extending upward from said body with the bore therein extending through the lower surface of said body and in register with the said liquid-conducting hole in the said plug,

a cap having an inward projecting flange secured around the outer end of said extension of said container to retain said insert and said plug in hermetic relation to said extension,

a flexible tube connected to said first gas-conducting nipple for connection to a source of pressurized gas propellant,

a flexible liquid outlet tube connected to said liquid nipple for connection to a spray gun and conducting liquid thereto and a disc disposed between the insert and plug and of larger diameter than the plug flange, the disc having an opening therethrough registering with the liquidconducting openings and a second opening through which the nipple of the insert extends.

2. The construction received in claim 1 including a second gas-propellant outlet hole through said outer end of said plug,

a second propellant nipple integral with and extending downward from said body and extending through a further opening in the disc and through said second hole in said plug and a gas outlet nipple integral with and extending upward from said body with the bore therein joining the said second downward nipple,

a flexible tube having one end thereof connected to said gas outlet nipple and the opposite end thereof for attachment to a spray gun for conducting gas propellant thereto.

3. The construction recited in claim 1 wherein said extension of said container terminates in an external threaded portion and wherein said cap has a mating internal threaded portion for hermetically securing said cap on said extension to hermetically seal said insert, said disc and said plug to said extension.

Claims (3)

1. A pressure-resistant liquid container for a spray gun with said container having an integral extension with a coaxial cylindrical bore therethrough terminating in an outer edge normal to the axis of said bore, a lock projection integral with said extension extending a predetermined distance inward from each opposite side of the surface of said bore, a hollow cylindrical plug of predetermined flexibility having a closed upper end and frictionally engaged in said bore including an integral outer end flange or predetermined thickness normal to the said axis and adjacent said outer edge of said extension, a gas-propellant inlet hole through the said upper end of said plug, a liquid-conducting outlet hole through said upper end of said plug adjacent said inlet hole and a liquid-conducting nipple having a coaxial hole therethrough extending downward from said upper end of said plug connecting said outlet hole with said coaxial hole through said nipple, a dip tube with the upper end thereof connected to said liquid conducting nipple and extending downward with the lower end thereof in close proximity to the bottom of said container, said plug having a bifurcated lower portion with an aperture in each branch for locking engagement with each corresponding said projection when each said opposite side is flexed inward by camming over each said projection when said plug is inserted in said bore whereby said plug will resist removal from said bore, a tube-coupling insert having a body of predetermined thickness to mate with the upper surface of said plug, a first propellant gas-conducting nipple integral with said body extending downward through said inlet hole in said plug, a second propellant gas-conducting inlet nipple integral with and extending upward from said body with the bore therein coaxial with and joining the bore in said first gas-conducting nipple, a liquid-conducting outlet nipple integral with and extending upward from said body with the bore therein extending through the lower surface of said body and in register with the said liquid-conducting hole in the said plug, a cap having an inward projecting flange secured around the outer end of said extension of said container to retain said insert and said plug in hermetic relation to said extension, a flexible tube connected to said first gas-conducting nipple for connection to a source of pressurized gas propellant, a flexible liquid outlet tube connected to said liquid nipple for connection to a spray gun and conducting liquid thereto and a disc disposed between the insert and plug and of larger diameter than the plug flange, the disc having an opening therethrough registering with the liquid-conducting openings and a second opening through which the nipple of the insert extends.
2. The construction received in claim 1 including a second gas-propellant outlet hole through said outer end of said plug, a second propellant nipple integral with and extending downward from said body and extending through a further opening in the disc and through said second hole in said plug and a gas outlet nipple integral with and extending upward from said body with the bore therein joining the said second downward nipple, a flexible tube having one end thereof connected to said gas outlet nipple and the opposite end thereof for attachment to a spray gun for conducting gas propellant thereto.
3. The construction recited in claim 1 wherein said extension of said container terminates in an external threaded portion and wherein said cap has a mating internal threaded portion for hermetically securing said cap on said extension to hermetically seal said insert, said disc and said plug to said extension.
US3604602A 1969-02-26 1969-02-26 Liquid supply container for an atomizing spray gun Expired - Lifetime US3604602A (en)

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3880333A (en) * 1973-04-10 1975-04-29 Barry Fleischer Applicator system for fluids
US3910304A (en) * 1973-02-20 1975-10-07 Curtis Helene Ind Inc Compressed air spray apparatus
US3970221A (en) * 1973-04-10 1976-07-20 Barry Fleischer Applicator system for fluids
US4023718A (en) * 1974-04-04 1977-05-17 Revlon-Realistic Professional Products, Inc. Sealing and closure structure for a spray dispensing device
US5186362A (en) * 1991-08-19 1993-02-16 Biagi Jr Hugh A Liquid transfer assembly
US5356051A (en) * 1991-09-23 1994-10-18 Toto, Ltd. Liquid soap supplying device
US5540362A (en) * 1991-09-23 1996-07-30 Toto, Ltd. Liquid soap supplying device
US5586588A (en) * 1994-12-21 1996-12-24 Knox; Lee B. Apparatus and method for pressurizing and drafting liquid contained within food-grade containers
US20050242107A1 (en) * 2004-04-29 2005-11-03 Kosmyna Michael J Part dispenser assembly
US20050279748A1 (en) * 2004-06-10 2005-12-22 Kosmyna Michael J Fluid supply assembly
US20060043217A1 (en) * 2004-06-03 2006-03-02 Kosmyna Michael J Adapter assembly for a fluid supply assembly
US20060180075A1 (en) * 2005-01-31 2006-08-17 Michael Kosmyna Fluid supply assembly with measuring guide
US20060249597A1 (en) * 2004-01-16 2006-11-09 Kosmyna Michael J Antistatic paint cup
US7344040B2 (en) 2004-01-16 2008-03-18 Illinois Tool Works Inc. Fluid supply assembly
US7380680B2 (en) 2004-01-16 2008-06-03 Illinois Tool Works Inc. Fluid supply assembly
US7665672B2 (en) 2004-01-16 2010-02-23 Illinois Tool Works Inc. Antistatic paint cup
US7757972B2 (en) 2004-06-03 2010-07-20 Illinois Tool Works Inc. Conversion adapter for a fluid supply assembly
US7766250B2 (en) 2004-06-01 2010-08-03 Illinois Tool Works Inc. Antistatic paint cup
US20100193517A1 (en) * 2007-06-25 2010-08-05 Surpass Industry Co., Ltd. Plug structure
US20140175133A1 (en) * 2012-12-21 2014-06-26 Smart Bar Usa Llc Cap for beverage container
US20180111747A1 (en) * 2016-10-24 2018-04-26 Samsung Electronics Co., Ltd. Fluid dispenser

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2276421A (en) * 1939-09-23 1942-03-17 Elliotts & Australian Drug Pty Blood transfusion and storage apparatus
US2848130A (en) * 1953-10-07 1958-08-19 Duo Vent Vacuum Closure Compan Pressure resistant closures
US3090530A (en) * 1960-06-27 1963-05-21 Vilbiss Co Air flow control for pressure feed containers
US3208639A (en) * 1964-05-06 1965-09-28 Finesse Products Inc Sealed fluid dispensing system for oxidizable fluids

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2276421A (en) * 1939-09-23 1942-03-17 Elliotts & Australian Drug Pty Blood transfusion and storage apparatus
US2848130A (en) * 1953-10-07 1958-08-19 Duo Vent Vacuum Closure Compan Pressure resistant closures
US3090530A (en) * 1960-06-27 1963-05-21 Vilbiss Co Air flow control for pressure feed containers
US3208639A (en) * 1964-05-06 1965-09-28 Finesse Products Inc Sealed fluid dispensing system for oxidizable fluids

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910304A (en) * 1973-02-20 1975-10-07 Curtis Helene Ind Inc Compressed air spray apparatus
US3880333A (en) * 1973-04-10 1975-04-29 Barry Fleischer Applicator system for fluids
US3970221A (en) * 1973-04-10 1976-07-20 Barry Fleischer Applicator system for fluids
US4023718A (en) * 1974-04-04 1977-05-17 Revlon-Realistic Professional Products, Inc. Sealing and closure structure for a spray dispensing device
US5186362A (en) * 1991-08-19 1993-02-16 Biagi Jr Hugh A Liquid transfer assembly
US5356051A (en) * 1991-09-23 1994-10-18 Toto, Ltd. Liquid soap supplying device
US5392965A (en) * 1991-09-23 1995-02-28 Toto, Ltd. Liquid soap supplying device having a middle height supplementing port
US5423461A (en) * 1991-09-23 1995-06-13 Toto, Ltd. Liquid soap supplying device
US5540362A (en) * 1991-09-23 1996-07-30 Toto, Ltd. Liquid soap supplying device
US5586588A (en) * 1994-12-21 1996-12-24 Knox; Lee B. Apparatus and method for pressurizing and drafting liquid contained within food-grade containers
US7625016B2 (en) 2004-01-16 2009-12-01 Illinois Tool Works Inc. Adapter assembly for a fluid supply assembly
US7753289B2 (en) 2004-01-16 2010-07-13 Illinois Tool Works Inc. Antistatic paint cup
US20090200309A1 (en) * 2004-01-16 2009-08-13 Kosmyna Michael J Fluid supply assembly
US7565983B2 (en) 2004-01-16 2009-07-28 Illinois Tool Works Inc. Fluid supply assembly
US20060249597A1 (en) * 2004-01-16 2006-11-09 Kosmyna Michael J Antistatic paint cup
US8196770B2 (en) 2004-01-16 2012-06-12 Illinois Tool Works Inc. Fluid supply assembly
US7380680B2 (en) 2004-01-16 2008-06-03 Illinois Tool Works Inc. Fluid supply assembly
US7344040B2 (en) 2004-01-16 2008-03-18 Illinois Tool Works Inc. Fluid supply assembly
US7665672B2 (en) 2004-01-16 2010-02-23 Illinois Tool Works Inc. Antistatic paint cup
US7744011B2 (en) 2004-01-16 2010-06-29 Illinois Tool Works Inc. Antistatic paint cup
US20050242107A1 (en) * 2004-04-29 2005-11-03 Kosmyna Michael J Part dispenser assembly
US7766250B2 (en) 2004-06-01 2010-08-03 Illinois Tool Works Inc. Antistatic paint cup
US7354074B2 (en) 2004-06-03 2008-04-08 Illinois Tool Works Inc. Adapter assembly for a fluid supply assembly
US7757972B2 (en) 2004-06-03 2010-07-20 Illinois Tool Works Inc. Conversion adapter for a fluid supply assembly
US20060043217A1 (en) * 2004-06-03 2006-03-02 Kosmyna Michael J Adapter assembly for a fluid supply assembly
US7874323B2 (en) 2004-06-10 2011-01-25 Illinois Tool Works, Inc. Fluid supply assembly
US7353964B2 (en) 2004-06-10 2008-04-08 Illinois Tool Works Inc. Fluid supply assembly
US20050279748A1 (en) * 2004-06-10 2005-12-22 Kosmyna Michael J Fluid supply assembly
US20070267412A1 (en) * 2005-01-31 2007-11-22 Michael Kosmyna Fluid supply assembly with measuring guide
US20060180075A1 (en) * 2005-01-31 2006-08-17 Michael Kosmyna Fluid supply assembly with measuring guide
US7263893B2 (en) 2005-01-31 2007-09-04 Illinois Tool Works Inc. Fluid supply assembly with measuring guide
US7350418B2 (en) 2005-01-31 2008-04-01 Illinois Tool Works, Inc. Fluid supply assembly with measuring guide
US20100193517A1 (en) * 2007-06-25 2010-08-05 Surpass Industry Co., Ltd. Plug structure
US8870037B2 (en) * 2007-06-25 2014-10-28 Surpass Industry Co., Ltd. Plug structure
US9604762B2 (en) 2007-06-25 2017-03-28 Surpass Industry Co., Ltd. Plug structure
US20140175133A1 (en) * 2012-12-21 2014-06-26 Smart Bar Usa Llc Cap for beverage container
US20180111747A1 (en) * 2016-10-24 2018-04-26 Samsung Electronics Co., Ltd. Fluid dispenser

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