US3785528A - Aerosol dispensing device - Google Patents

Aerosol dispensing device Download PDF

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Publication number
US3785528A
US3785528A US00282475A US3785528DA US3785528A US 3785528 A US3785528 A US 3785528A US 00282475 A US00282475 A US 00282475A US 3785528D A US3785528D A US 3785528DA US 3785528 A US3785528 A US 3785528A
Authority
US
United States
Prior art keywords
valve
cap
head
tube
hub
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
US00282475A
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English (en)
Inventor
S Mandeltort
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.)
VCA Corp
Pittway Corp
Original Assignee
VCA Corp
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 VCA Corp filed Critical VCA Corp
Application granted granted Critical
Publication of US3785528A publication Critical patent/US3785528A/en
Assigned to PITTWAY CORPORATION reassignment PITTWAY CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ETHYL PRODUCTS COMPANY
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers 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
    • B65D83/34—Cleaning or preventing clogging of the discharge passage

Definitions

  • ABSTRACT An aerosol dispensing cap unitarily formed from a flexible and elastic material to provide a dome shaped diaphragm, a central hub and-discharge outlet tube, the dispensing outlet tube having an integral valve midstream which permits communication between the a tube and volume beneath the cap in the unactuated position, the hub being ported to the tube and releasably chambered to engage and open the aerosol valve when depressed, the volume beneath the cap forming a reservoir of negative pressure when the cap is depressed, causing aerosol material in the tube, and valve stem to be drawn into the reservoir.
  • 2,753,214 has inherent problems for dispensing aerosol foam or any other aerosol material in that when the diaphragm is constructed as described, it must be very elastic because of its relative small diameter for some valve stems require depression in excess of one-sixteen inch in order to open a valve. By cutting the top free about much of its periphery, the flexibility was increased according to Re. 24,555. But both arrangements suffered from after-flow and afterfoaming of the aerosol material in the valve stem and cap passage when the valve is closed.
  • the aforementioned improved and increased flexibility of the diaphragm is used to provide a means for removing material not dispensed from the discharge passage, thus providing an aesthetically pleasing, non-clogging and sanitary dispensing cap. This is accomplished by unique utilization of the volume beneath the cap.
  • the cap cooperates with the mounting cup of the valve to form a residue cache and diaphragm top.
  • the volume of the residue cache is reduced as the diaphragm is depressed and a reservoir of negative pressure is created when the cap is released.
  • the discharge passage isexposed to the negative pressure, the aerosol material left in it and in the value stem is drawn into the reservoir thereby emptying and cleaning them.
  • the aerosol dispensing cap of the present invention is generally dome-shaped and formed from a flexible and elastic compound such as plastic.
  • the cap is mounted on the dispenser can valve mounting cup by means of a peripheral bead which locks beneath the outer rim of the valve mounting cup.
  • a discharge passage and tube are integrally formed with the cap and communicate with the center hub by means of a port.
  • the hub is positioned under the apex of the cap and contains a chamber to receive, engage and open the valve stem when the cap is depressed. In the unactivated position the hub chamber is released from the stem.
  • the hub may be recessed to more snugly receive the valve stem and move axially with'it.
  • a gate type valve Positioned in the tube is a gate type valve which exposes the tube and passage to the volume beneath the cap.
  • the cap diaphragm As the cap diaphragm is depressed or flexed at the hub, the hub descends and unseats the valve stem; the volume beneath the cap is decreased; the gate valve closes, and the desired amount of aerosol product is discharged.
  • the cap When the pressure on the hub is released, the cap rises due to its natural flexibility and elasticity of the diaphram, to its dome position, thus creating a reservoir of decreased pressure beneath the cap.
  • the dispenser valve closes, the hub chamber clears the stem and the gate valve exposes the tube and passage to the negative pressure beneath the cap. Any material in the tube down stream from the gate is drawn into the reservoir through the gate and any material upstream from the gate is drawn into the reservoir either through the gate or the hub port. Moreover, since the valve stem is also exposed to the reservoir, material left in the downstream side of the stem will tend to be drawn into the reservoir directly or through the tube.
  • FIG. 1 is a perspective view of the aerosol can with the dispensing cap embodying the present invention mounted on the valve cup;
  • FIG. 2 is a sectional view as indicated in connection with FIG. 1 of the cap in the unactivated position;
  • FIG. 3 is a sectional view as indicated in connection with FIG. 1 of the cap in the activated position
  • FIG. 4 is a fragmented horizontalsectional view as indicated on FIG. 2 of the tube valve in the open position (valve gate shown as dotted);
  • FIG. 5 is a fragmented horizontal sectional view as indicated on FIG. 3 of the tube valve in the closed position (valve gate shown as dotted);
  • FIG. 6 is a fragmented horizontal sectional view of the tube valve gate as indicated in FIG. 2.
  • the aerosol dispensing cap 10 of this invention shown in the drawings is in the form of a unitary domeshaped cap which is formed from a flexible resilient material such as rubber or plastic.
  • the entire cap 10 may be integrally molded of the material but the principal area of flexure is the top portion, the diaphram or head 11 of the dome, which causes the decrease in the reservoir volume R beneath the cap when it is flexed axially inwardly.
  • the cap is formed to provide a crowned head portion 11 and a circular-shaped wall 12.
  • the wall section 12 is flared outwardly and provided with an internal bead 13 which is sprung over the peripheral edge of the aerosol valve mounting cup C to provide closure of the cap therewith and create a reservoir R between the cap 10 and valve cup C.
  • the wall section may also be formed in an accordian shape to provide even greater flexing.
  • the cap 10 is fixed in position over the cup C by means of three posts 14 integrally formed to the interior of the wall 12 at equal positions around the circumference thereof, and which prevent vertical or axial movement of the cap during actuation of the dispensing valve V by pressure on the dome 11.
  • a foam or other aerosol material flow tube 15 is integrally molded with the head 11 and originates from the central hub 16. Downstream, the tube 15 terminates at and forms the gate 17 for the discharge passage valve 18.
  • the discharge passage 19 which is enlarged as a final expansion region when the cap is used with a foam product is molded axially with the tube 15 forming the seat 23 of the passage valve 18 and extending beyond the wall 12 to form the terminal foam expansion section 19 and spout 20.
  • the cross-section of the passage 19 is gradually reduced upstream from the wall 12 by causing the bottom portion of the passage 19 to assume a V shape at the valve 18 to form the valve seat 23.
  • the discharge passage valve 18 of this invention is essentially of the gate type.
  • the gate 17 is formed in part by the flow tube 15 and in part by a flap which extends from the terminus of the flow tube 15 to provide the necessary cross-sectional area to close the valve 18.
  • the discharge channel 19 is reinforced at the wall 12 by means ofa gusset 21 molded to the underneath section of the discharge channel 19 and the post 14.
  • the central hub 16 in the preferred embodiment is formed with a hemispherical chamber 22 which surrounds the valve stem v and seats on the valve stem v in the actuated position, as illustrated in FIG. 3. It will be appreciated that the chamber 22 may also be formed in other shapes. In the preferred form the chamber 22 does not closely surround the valve v in the unactuated position so that the aerosol material may be more efficiently drawn through the clearance and back pressure relieved. The clearance between the chamber 22 and the valve stem v and the travel in the valve provide the decrease in reservoir R volume. In the event further travel is necessary, the accordian-shaped wall embodiment may be used.
  • the hub 16 is cored to provide a communication port between the chamber 22 and the tube 15.
  • the valve gate 17 moves downward and rotates slightly inwardly relative to the seat 22 resulting in closure of the valve 18.
  • the depression of the cap 10 causes the dome diaphragm to expell air from beneath the cap 10.
  • the pressure in the reservoir becomes negative with respect to atmospheric pressure and the gate 17 unseats from the channel valve 18.
  • the negative pressure causes the aerosol material that has remained in the nozzle 20, tube 15 and valve stem v to be drawn into the reservoir R through the valve 18 and port 16.
  • the clearance between the chamber 22 and valve stem v functions to permit material to be drawn from the tube through the port 16 and past the stem v most effectively and to reduce back pressure that would occur if these components were engaged.
  • the cap 10 is designed to form a pressure vessel containing a reduced pressure which is utilized to withdraw aerosol material from the discharge outlet 15 and 19 and valve stem v.
  • This withdrawal is not only useful for aesthetic reasons but also for sanitary reasons.
  • the contents of the container is such that it requires freshness, for example food stuff, or requires a substantially anaerobic composition for use, as in some medicinal and bacterial compounds, removal of unpropelled contents greatly increases the quality of effectivenss of the dispensed material. Maximum withdrawal of unpropelled contents is assured by the dual withdrawal ports, namely the gate valve 18 and the clearance between the valve stem v and hub chamber 22, which work in concert with the resilient diaphragm 11 to provide end and midstream material withdrawal.
  • a dispensing head for aerosol containers which is the combination of a generally dome-shaped head formed from a flexible and elastic material to create a diaphragm top, the head having an integral, flexible, peripheral wall engageable on an aerosol container valve cup and having integrally formed therewith a central hub; a discharge outlet formed by a dispensing tube originating from the hub and a discharge expansion chamber comprising a walled passage, the inner end of the passage being axially formed to the tube and the outer end of the passage extending through the head whereby the contents of the container pass directly through the passage to the exterior of the head; the hub being formed with a downward facing engageable chamber to depress and open the container valve when pressure is applied to the exterior of the head, the chamber communicating with the tube by means of a port to permit the flow of the contents out through the container valve stem and into and through the tube; a valve formed in the discharge outlet, the seat of the valve being formed by the inner end of the expansion passage and the gate of the valve formed by a flap extending from the dispensing tube
  • a dispensing head of claim '1 in which the hub chamber is not in contact with the valve stem in the unactuated position.
  • a dispensing head for aerosol containers having a valve stem extending from a valve cup comprising: a generally hollow cap body of'flexible resilient material, said cap body including means for engaging said aerosol container valve cup, the interior of said cap body cooperating with said valve cup to form a pressure vessel, said pressure vessel containing reduced pressure when the cap is depressed; discharge outlet means located in the interior of said cap body and extending therethrough to direct the flow of product to the exterior thereof, the inner end of said outlet means being adapted to depress and open the container valve when pressure is applied to the exterior of the cap, the vessel communicating with said discharge outlet means through a valve formed therein downstream from said inner end, the valve being in a closed position when the cap is pressed into the actuating position and in the open position, whereby communication is achieved to draw undispensed product left in said discharge outlet means through the valve opening and into said vessel,

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
US00282475A 1972-08-21 1972-08-21 Aerosol dispensing device Expired - Lifetime US3785528A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28247572A 1972-08-21 1972-08-21

Publications (1)

Publication Number Publication Date
US3785528A true US3785528A (en) 1974-01-15

Family

ID=23081673

Family Applications (1)

Application Number Title Priority Date Filing Date
US00282475A Expired - Lifetime US3785528A (en) 1972-08-21 1972-08-21 Aerosol dispensing device

Country Status (9)

Country Link
US (1) US3785528A (it)
AU (1) AU464026B2 (it)
CA (1) CA989781A (it)
DE (1) DE2337381A1 (it)
ES (1) ES416437A1 (it)
FR (1) FR2196949B1 (it)
GB (1) GB1365472A (it)
IT (1) IT1003096B (it)
ZA (1) ZA734443B (it)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901891A (en) * 1986-04-30 1990-02-20 L'oreal End fitting for dispensing a foaming product
FR2639259A1 (fr) * 1988-11-21 1990-05-25 Oreal Embout pour distribuer un produit, en particulier un produit moussant
WO1992012063A1 (en) * 1991-01-11 1992-07-23 The Gillette Company Actuator for a pressurized container
US5137180A (en) * 1990-09-06 1992-08-11 Pittway Corporation Vented aerosol device
US5370284A (en) * 1994-03-15 1994-12-06 The Procter & Gamble Company Toggle closure for a resiliently deformable container
US5730332A (en) * 1993-05-24 1998-03-24 Zimmerhackel; Franz Actuator for an aerosol container
US5918777A (en) * 1996-02-21 1999-07-06 Owens-Brockway Plastic Products Inc. Dispensing package for viscous liquid product
US6241128B1 (en) 1998-12-22 2001-06-05 Owens-Brockway Plastic Products Inc. Dispenser package for fluent products and method of manufacture
US6264067B1 (en) 1999-04-29 2001-07-24 L'oreal S.A. Dispensing member actuating device, assembly, and method
US6311878B1 (en) 2000-01-07 2001-11-06 Owens-Brockway Plastics Products Inc. Dispensing package for fluent products
US6394323B2 (en) 1999-08-24 2002-05-28 Owens-Brockway Plastic Products Inc. Dispenser package for fluent products and method of manufacture
US6405898B1 (en) * 2000-11-16 2002-06-18 The Gillette Company Dispenser for a foaming product
US6905049B1 (en) * 2004-05-06 2005-06-14 Qualipac Device and assembly for dispensing a fluid
US6907690B1 (en) * 2003-04-25 2005-06-21 Jimmie L. Stallings Environmentally friendly insect eradication method and apparatus
US20070262095A1 (en) * 2004-12-15 2007-11-15 Heiko Eberhardt Cap for an Aerosol Container or a Spray Container
US20080302834A1 (en) * 2005-07-29 2008-12-11 Shu Packaging Products Ltd. Container for a Liquid and a Propelling Gas Comprising a Valve
US20090218418A1 (en) * 2005-08-04 2009-09-03 Incro Limited Atomising Nozzle and an Aerosol Canister Comprising an Atomising Nozzle
US20090297460A1 (en) * 2006-03-24 2009-12-03 John David Lamb Aerosol dispenser
US20100044401A1 (en) * 2004-12-09 2010-02-25 Heiko Eberhardt Cap for an aerosol can or a spray can
USD667730S1 (en) 2010-11-05 2012-09-25 Colgate-Palmolive Company Container
USD667728S1 (en) 2010-11-05 2012-09-25 Colgate-Palmolive Company Container
US10647501B2 (en) 2015-04-06 2020-05-12 S. C. Johnson & Son, Inc. Dispensing systems
US20220371814A1 (en) * 2019-10-31 2022-11-24 Colgate-Palmolive Company Container

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991009683A1 (en) * 1989-12-28 1991-07-11 Yoshino Kogyosho Co., Ltd. Liquid sprayer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753214A (en) * 1954-01-29 1956-07-03 Frederick G Lodes Foam dispensing head for aerosols
US2894660A (en) * 1958-05-13 1959-07-14 Edward L Gordon Dispenser cap
US3377005A (en) * 1967-02-03 1968-04-09 American Home Prod Aerosol container overcap with oozeproof valve-actuating means

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753214A (en) * 1954-01-29 1956-07-03 Frederick G Lodes Foam dispensing head for aerosols
US2894660A (en) * 1958-05-13 1959-07-14 Edward L Gordon Dispenser cap
US3377005A (en) * 1967-02-03 1968-04-09 American Home Prod Aerosol container overcap with oozeproof valve-actuating means

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901891A (en) * 1986-04-30 1990-02-20 L'oreal End fitting for dispensing a foaming product
FR2639259A1 (fr) * 1988-11-21 1990-05-25 Oreal Embout pour distribuer un produit, en particulier un produit moussant
EP0370842A1 (fr) * 1988-11-21 1990-05-30 L'oreal Embout pour distribuer un produit, en particulier un produit moussant
US4978035A (en) * 1988-11-21 1990-12-18 L'oreal Nozzle for dispensing a product, in particular a foaming product
US5137180A (en) * 1990-09-06 1992-08-11 Pittway Corporation Vented aerosol device
WO1992012063A1 (en) * 1991-01-11 1992-07-23 The Gillette Company Actuator for a pressurized container
US5914085A (en) * 1993-05-24 1999-06-22 Zimmerhackel; Franz Actuator for an aerosol container
US5730332A (en) * 1993-05-24 1998-03-24 Zimmerhackel; Franz Actuator for an aerosol container
US5370284A (en) * 1994-03-15 1994-12-06 The Procter & Gamble Company Toggle closure for a resiliently deformable container
US5918777A (en) * 1996-02-21 1999-07-06 Owens-Brockway Plastic Products Inc. Dispensing package for viscous liquid product
US6041975A (en) * 1996-02-21 2000-03-28 Owens-Brockway Plastic Products Inc. Dispensing package for viscous liquid product
US6757957B2 (en) 1998-12-22 2004-07-06 Owens-Brockway Plastic Products Inc. Dispenser package for fluent products and method of manufacture
US6241128B1 (en) 1998-12-22 2001-06-05 Owens-Brockway Plastic Products Inc. Dispenser package for fluent products and method of manufacture
US6615473B2 (en) 1998-12-22 2003-09-09 Owens-Brockway Plastic Products Inc. Method of making a container and closure
US6264067B1 (en) 1999-04-29 2001-07-24 L'oreal S.A. Dispensing member actuating device, assembly, and method
US6394323B2 (en) 1999-08-24 2002-05-28 Owens-Brockway Plastic Products Inc. Dispenser package for fluent products and method of manufacture
US6622895B2 (en) 1999-08-24 2003-09-23 Owens-Brockway Plastic Products Inc. Dispenser package for fluent products and method of manufacture
US6311878B1 (en) 2000-01-07 2001-11-06 Owens-Brockway Plastics Products Inc. Dispensing package for fluent products
US6357625B2 (en) 2000-01-07 2002-03-19 Owens-Brockway Plastics Products Inc. Dispensing packages for fluent products
US6405898B1 (en) * 2000-11-16 2002-06-18 The Gillette Company Dispenser for a foaming product
US6907690B1 (en) * 2003-04-25 2005-06-21 Jimmie L. Stallings Environmentally friendly insect eradication method and apparatus
US6905049B1 (en) * 2004-05-06 2005-06-14 Qualipac Device and assembly for dispensing a fluid
US20100044401A1 (en) * 2004-12-09 2010-02-25 Heiko Eberhardt Cap for an aerosol can or a spray can
US8403184B2 (en) * 2004-12-09 2013-03-26 Wella GmbH Cap for an aerosol can or a spray can, with an acoustic seal
US20070262095A1 (en) * 2004-12-15 2007-11-15 Heiko Eberhardt Cap for an Aerosol Container or a Spray Container
US7854356B2 (en) * 2004-12-15 2010-12-21 Wella Ag Cap for an aerosol container or a spray container
US20080302834A1 (en) * 2005-07-29 2008-12-11 Shu Packaging Products Ltd. Container for a Liquid and a Propelling Gas Comprising a Valve
US20090218418A1 (en) * 2005-08-04 2009-09-03 Incro Limited Atomising Nozzle and an Aerosol Canister Comprising an Atomising Nozzle
US20090297460A1 (en) * 2006-03-24 2009-12-03 John David Lamb Aerosol dispenser
US9649513B2 (en) 2006-03-24 2017-05-16 Colgate—Palmolive Company Aerosol dispenser
USD667730S1 (en) 2010-11-05 2012-09-25 Colgate-Palmolive Company Container
USD667728S1 (en) 2010-11-05 2012-09-25 Colgate-Palmolive Company Container
US10647501B2 (en) 2015-04-06 2020-05-12 S. C. Johnson & Son, Inc. Dispensing systems
US11407581B2 (en) 2015-04-06 2022-08-09 S. C. Johnson & Son, Inc. Dispensing systems
US20220371814A1 (en) * 2019-10-31 2022-11-24 Colgate-Palmolive Company Container

Also Published As

Publication number Publication date
AU5789073A (en) 1975-01-09
DE2337381A1 (de) 1974-03-21
FR2196949A1 (it) 1974-03-22
GB1365472A (en) 1974-09-04
CA989781A (en) 1976-05-25
ES416437A1 (es) 1976-03-01
AU464026B2 (en) 1975-08-14
ZA734443B (en) 1974-06-26
FR2196949B1 (it) 1977-05-13
IT1003096B (it) 1976-06-10

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Legal Events

Date Code Title Description
AS Assignment

Owner name: PITTWAY CORPORATION; 1160 NORTH SILVER LAKE RD., C

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ETHYL PRODUCTS COMPANY;REEL/FRAME:004013/0652

Effective date: 19810824