US3543965A - Hand-held dispenser with two containers and two valves - Google Patents

Hand-held dispenser with two containers and two valves Download PDF

Info

Publication number
US3543965A
US3543965A US3543965DA US3543965A US 3543965 A US3543965 A US 3543965A US 3543965D A US3543965D A US 3543965DA US 3543965 A US3543965 A US 3543965A
Authority
US
United States
Prior art keywords
valve
housing
stem
container
valve housing
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
Other languages
English (en)
Inventor
Herbert G Lehmann
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.)
Pittway Corp
Valve Corp of America Inc
Original Assignee
Valve Corp of America Inc
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 Valve Corp of America Inc filed Critical Valve Corp of America Inc
Application granted granted Critical
Publication of US3543965A publication Critical patent/US3543965A/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

Links

Images

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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/68—Dispensing two or more contents
    • B65D83/682—Dispensing two or more contents initially separated and subsequently mixed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86509—Sequentially progressive opening or closing of plural ports

Definitions

  • a dispenser with dual valves and multiple containers comprising a tubular valve housing having an annular seat for a poppet valve, a cylindrical bore to accommodate a slide or spool valve, and a valve stem longitudinally movable in the housing and having poppet and spool valve portions for simultaneously closing and opening the valves.
  • the housing has a side passage, and is at one end carried in the neck of a pressurized container in which there is also a flexible bag connected to the other housing end. Different liquids in the container and bag are mixed and discharged when the valve stem is fully shifted to open the valves, or if the stem is only partially shifted there occurs a discharge of only one liquid.
  • This invention relates to small hand-held pressurized dispensers such as are used for shaving cream andthe like.
  • the invention particularly involves a dispenser of the kind indicated, wherein several different liquids are stored and kept separate, and can be mixed at the valvemeansduring the dispensing action. 1
  • a prior dispenser of shaving lather which effects a mixing of two separate liquids at the valve means to obtain a heating of the lather, is disclosed in U.S. Pat. No. 3,326,416.
  • One liquid suitable for such use is hydrogen peroxide; the other liquidcan contain sodium hypophosphite.
  • the reaction of these results in an exothermic nonexplosive decomposition'of the hydrogen peroxide, supplying heat to lathering ingredients whereby the discharge comprises a-heated, foam-forming mixture or lather.
  • Potassium sulfite' may be utilized, to react with the hydrogen peroxide, instead of the sodium hypophosphite.
  • a simple molded plastic, tubular valve housing having at one end a poppet valve seat and having intermediate its ends a cylindrical slide valve bore.
  • One end portion of the housing, that having the poppet valve seat, is secured in the mounting cup or closure of the pressurized container and the other end portion carries, communicates with, and is sealed to the neck of a flexible bag disposed in the container.
  • a longitudinally movable valve stem in the housing has a tubular projecting end portion through which'the discharge passes, and has a valve shoulder at the base of the tubular portion, said shoulder being engageable with the poppet valve seat.
  • Another, spool portion of the stem engages the cylindrical bore of the valve housing, to constitute therewith a slide valve.
  • valves are open when the stem is depressed, and for a deeply depressed condition flow occurs from the flexible bag axially through said housing, and from the container area which is exterior to the bag, through a sidewall passage of the valve housing into the latter to mix with the first-mentioned flow.
  • the mixture passes out of the housing through the poppet valve seat and through the tubular end portion of the stem.
  • the liquid from either one of the containers can be shut off to allow flow from only the other one.
  • the stem shoulder is an effective seal when the stem is not depressed.
  • the valving member is a single, simple molded piece. Besides such piece there is only the valve housing, a simple spring, and a washerlike poppet valve seat member making up the valve assembly.
  • Another objects of the invention are to provide an improved mixing valve and dispenser as above set forth, wherein the likelihood of undesired leakage or inadvertent mixing of the plurality of liquids is greatly minimized if not completely eliminated, and wherein only one of the valve devices is called on to withstand relatively highunidirectional pressures as effected in the container by the pressurized substance.
  • FIG. 1 is a fragmentary axial sectional view of a simplified, hand-held pressure-type dispenser with optional mixing or nonmixing feature as provided by the invention. The parts are shown in the storage or nondischarging condition.
  • FIG. 2 is a transverse section taken on line 2-2 of FIG. 1.
  • FIG. 3 is a fragmentary axial sectional view of a dispenser constituting another embodiment of the invention.
  • P10. 4 is a fragmentary axial sectional view of a dispenser constituting yet another embodiment of the invention.
  • FIG. 5 is a transverse section taken on line 5-5 of F IG. 4.
  • P16. 6 is a fragmentary view partly in side elevation and partly in vertical section, showing a modification based on FIGS. 4 and 5.
  • FIGS. 1 and 2 there is shown a pressurized container 10 including an upper shoulder portion 12 which supports a mounting cup 14 of the type having a raised central cuplike portion 16. Secured in the raised portion 16 is a tubular plastic valve housing 18 having a thicker top edge or rim 20 which is secured in place by spun-in or clinched portions 22.
  • the raised portion 16 of the mounting cup 14 has a central opening or discharge passage 24 through which there extends a vertically movable valve stem 26 having a valving shoulder 28 which is engageable with a valve seat or diaphragm in the form of a flat washerllke member 30 clamped between the top rim 20 of the valve housing and the top wall of the raised 1 mounting portion 16.
  • the valve stem 26 has a hollow upper portion 32 on which there is carried a depress button 34 having a horizontally extending nozzle 36 provided with a discharge passage 38 communicating with the bore of the stern portion 32.
  • the depress bottom 34 is movable in a stationary body member 40 of the actuator, said body member having a lower enlarged rim e2 which embraces an annular bead formation 44 of the container, constituting a joint between the mounting cup 14 and the top shoulder portion 12.
  • the upper hollow portion 32 of the valve stem 26 has a side opening 46 which is normally covered or closed by the valve seat member 30 when the stem 26 is in the raised position illustrated.
  • valve return spring 48 which engages an internal shoulder 50 of the housing and also the underside of the valving shoulder 28 of the stem, thereby to yieldably hold the latter in the raised sealing or nondischarging position of HG. 1.
  • an inner container 52 Carried by the lower, reduceddiameter portion 51 of the valve housing 18 is an inner container 52 whose neck portion 54 is press-fitted on the housing as shown.
  • the inner container 52 is of flexible plastic substance whereby it may be readily collapsed.
  • the outer and inner containers 10, 52 contain the liquids which are to be mixed and/or discharged.
  • the outer container may contain a shaving cream preparation and also a propellant such as Freon or equivalent well-known substance.
  • the inner container 52 may contain the hydrogen peroxide, if the dispenser is to be used to produce a heated lather. Included in the outer container will be also sodium hypophosphite or potassium sulfite.
  • a slide or spool-type valve arrangement associated with the valve stem 26, so arranged that an optional mixing or a selective discharge of the dispenser contents may be had.
  • the user may discharge only the shaving cream preparation contained in the outer container 10 without mixing the same with the hydrogen peroxide of the inner container 52.
  • the user may at his option discharge a mixture of both liquids, from both of the containersll), 52.
  • the valve housing 18 has a side port 56in a fitting 57 which is disposed approximately intermediate the ends of the housing, immediately above the top rim portion of the container neck 54.
  • a dip tube or siphon 59 Connected withthe fitting 57 is a dip tube or siphon 59, extending to the bottom of the container 10.
  • the valve stem 26 includes a lower portion 58 of smaller diameter than the upper hollow portion 32, arranged to have a sliding fit in the bore 60 of the portion 51 of the valve housing.
  • the lower part 58 of the valve stem has a recessed or slim stem portion 62 which is normally disposed above the port 56 of the valve housing 18.
  • the lower portion 51 of the valve housing is provided with a side groove 64 which extends from the bottom end to a location closely adjacent but not so as to join the side port 56.
  • the side port 56 of the valve housing is closed by the lower portion 58 of the valve stem. Accordingly, none of the liquid in the outer container 10 can be discharged or passed through the side port 56. Also, the lower end of the valve stem portion 58 closes the bore 60 of the valve housing portion 51 whereby liquid from the inner container 52 is prevented from being discharged. Simultaneously with these conditions, the valve shoulder 28 is seated against the valve seat 30, closing the discharge poppet valve.
  • the depress button 34 When it is desired to discharge only the contents of the container 10, the depress button 34 is pushed in only part way, bringing the recess 62 of the stem 26 in communication with the side port 56 and dip tube 59.
  • the bore 60 of the lower portion of the valve housing will still be closed, whereupon there will only be a discharge from the container 10, comprising the shaving preparation with the propellant and hypophosphite or sulfite, while the peroxide in the inner container 52 will remain inactive. Accordingly, the user will receive cold shaving preparation or foam.
  • the user merely depresses the button 34 to the rbllest extent. This will shift the valve stem 26 downward to a greater extent where the side recess 62 of the valve stem will also communicate with the groove 64 in the lower housing portion 53. In consequence, communication will be established between the contents of the inner container 52 and the upper portion of the valve housing bore, in addition to the communication established between such bore and the container It) via the dip tube.
  • the poppet valve 28, 30 will be open, whereupon there will occur a mixture-type discharge from the nozzle 36.
  • the propellant in the container 10 in exerting inward pressure on the walls of the collapsible inner container 52 will serve to eject the liquid from the inner container during the mixing type discharge.
  • FIG. 3 Another embodiment of the invention is illustrated in FIG. 3. This arrangement is generally similar to that of FIGS. 1 and 2, except that it is not necessary to depress the valve stem as far as in FIG. 1, in order to obtain a mixing type discharge.
  • H0. 3 similar components have been given similar reference characters.
  • the valve tubular housing is slightly different, and has been designated 18a.
  • the valve housing 18 had the port 56 and lower groove 64 located one below the other, at the same side of the housing.
  • the valve housing 18a has its side port 56a located in the left wall as viewed in the figure, whereas the longitudinal groove 64a is located at a substantially diametrically opposite location, in the right wall.
  • the upper end of the groove 640 may be at the same level as the lowermost portion of the side port 56a, whereby a mixing discharge will occur as soon as the spool portion 58 of the valve stem 26 clears the top of the port 56a.
  • the obtaining of a mixed discharge does not require that the valve stem 26 be depressed to as great an extent as with the embodiment ofFlGS. 1 and 2.
  • discharge of only the liquid in the container 10 occurs for a shallow depressing movement of the valve stem 26, whereas the mixing type discharge occurs when the stem is depressed to a greater extent.
  • FIGS. 4 and 5 Yet another embodiment of the invention wherein discharge of liquid only from the inner container can occur by itself, in addition to a mixing type discharge, is illustrated in FIGS. 4 and 5.
  • the mixing type discharge requires that the dispenser be inverted and that the valve stem be fully depressed.
  • the dispenser may be held upright, and the valve stem may be depressed only a slight amount.
  • FIGS. 4 and 5 components similar to those already described have been given similar reference characters.
  • the valve housing 18b has a side port 56b at a relatively high location, as compared with the side ports of the embodiments of FIGS. 1-3, and has no dip tube connected with the side port 56b.
  • the dispenser is adapted for operation in an inverted portion when the liquid in the outer container 10 is to be discharged through the side port 5611.
  • the valve stem 26b having the hollow upper portion 32b, is provided with an intermediate reduced-diameter portion 66 around which there is carried a spool valve member 68 of generally cylindrical configuration, with a side cut 70.
  • the side cut 70 accommodates a keying rib 72 which is formed on the inner sidewall of the valve housing 181) to prevent turning of the spool 68.
  • a valve return spring 23 engages the spool valve member 68 and also the internal shoulder 50b of the valve housing, thereby to normally yieldably hold the valve stem 26b in the raised nondischarging position.
  • a side groove 64b in the lower bore of the valve housing 18b establishes communication between the interior or bore of the valve housing and the interior of the inner container 52.
  • the spool valve element 68 normally closes the side port 56b of the valve housing whereby no communication normally exists between the interior of the valve housing and the interior of the outer container 10.
  • the dispenser is inverted and the depress button which actuates the valve stem 26b is fully depressed. This will establish communication through the side port 56!) between the interior of the valve housing 18b and the outer container 10, and since communication is already established between the interior of the valve housing and the inner container 52 the liquids of both containers will mix as they are being discharged through the upper hollow portion 32b of the valve stem 26b.
  • FIGS. 4 and 5 may be arranged for operation only when held upright by the provision of a dip tube.
  • the valve housing 18c has a side fitting 566 to which the dip tube 59 is attached.
  • the housing 180 is other wise the same as the housing 18b of FIGS. 4 and 5.
  • an upright tubular valve housing having a vertical bore and a pair of axially spaced apart, substantially annular valving portions disposed at different locations along'said bore and arranged to be concentric with the axis of the valve housing, through which valving portions liquid passes in flowing through the housing, said housing further having a port through its sidewall at one of said valving portions;
  • a vertically movable valve stem axially slidable in the valve housing and passing through both valving portions thereof, said stern having a tubular portion projecting from one end of the housing and through the other of said annular valving portions, and having a poppet valve means comprising an annular shoulder engaged with said other valving portion to close the same when the stem is fully raised;
  • said tubular portion of the valve stem having a side passage adjacent the shoulder of the stem, adapted to be disposed inside the housing when the stem is fully depressed, thereby to conduct liquid from the interior of the housing into the tubular stem portion;
  • spool means on the valve stem slidable in and cooperable e.
  • said spool means enabling liquid to pass into the valve housing through said sidewall port when the spool means moves away from the said port and the side passage of the valve stem becomes disposed inside the valve housing as the stem is fully depressed;
  • means in the bore of the valve housing enabling liquid to flow upward inside the bore between the walls thereof and the outside of the spool means and thence into the valve housing when the stem is fully depressed, said one valving portion of the housing and said spool means cooperating to prevent said upward liquid flow between the outside of the spool means and the walls of the bore when the valve stem is in its fully raised position;
  • a container connected with the lower end of the valve housing to supply liquid to the bore thereof below said spool means.
  • said container comprises a flexible collapsible bag having a discharging neck portion secured around the lower end of the valve housing;
  • a rigid pressure-resistant container enclosing said bag and valve housing, said container having a neck portion secured to the valve housing at a location near the said other valving portion;
  • said sidewall port of the housing communicating with the interior of said container.
  • said spool means and one valving portion shut off the upward flow of liquid from the bag to said valve housing prior to the spool means covering said sidewall port as the valve stem moves upward.
  • said one valving portion comprises a cylindrical inner wall slidablyengaged by the spool means;
  • said one valving portion having a internal longitudinal groove extending from the vicinity of said port to the bottom end of the valve housing to provide a bypass for allowing fluid to flow past the spool means when the stem is fully depressed.
  • an upright tubular valve housing having a vertical bore and a pair of axially spaced apart, substantially annular valving portions disposed at different locations along said bore and arranged to be concentric with the axis of the valve housing, through which valving portions liquid passes in flowing through the housing, said housing further having a port through its sidewall at one of the said valving portions;
  • a vertically movable valve stem axially slidable in the valve housing and passing through both valving portions thereof, said stem having a tubular portion projecting from one end of the housing and through the other of said annular valving portions, and having a poppet valve means comprising an annular shoulder engaged with said other valving portion to close the same when the stem is fully raised;
  • said tubular portion of the valve stem having a side passage adjacent the shoulder of the stem, adapted to be disposed inside the housing when the stem is fully depressed, thereby to conduct liquid from the interior of the housing into the tubular stern portion;
  • spool means on the valve stem slidable in and cooperable with said one valving portion and said sidewall port, for blocking the flow of liquid through said sidewall port when the valve stem is fully raised and the shoulder of the stem closes said other valving portion;
  • said spool means enabling liquid to pass into the valve housing through said sidewall port when the spool means moves away from the said port and the side passage of the valve stem becomes disposed inside the valve housing as the stem is fully depressed;
  • said spool means comprising a cylindrical member separate from the valve stem and having a central bore through which the stem extends;
  • said spool member having a radial cut in it, equal in width to the spool bore;
  • valve housing having a longitudinal internal rib received in said radial cut and keying the spool member against turning whereby it is fixedly rotatably oriented with respect to said sidewall port.

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)
  • Lift Valve (AREA)
US3543965D 1968-06-14 1968-06-14 Hand-held dispenser with two containers and two valves Expired - Lifetime US3543965A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73723868A 1968-06-14 1968-06-14

Publications (1)

Publication Number Publication Date
US3543965A true US3543965A (en) 1970-12-01

Family

ID=24963116

Family Applications (1)

Application Number Title Priority Date Filing Date
US3543965D Expired - Lifetime US3543965A (en) 1968-06-14 1968-06-14 Hand-held dispenser with two containers and two valves

Country Status (6)

Country Link
US (1) US3543965A (enrdf_load_stackoverflow)
JP (1) JPS5011091B1 (enrdf_load_stackoverflow)
DE (1) DE1929844A1 (enrdf_load_stackoverflow)
ES (1) ES368111A1 (enrdf_load_stackoverflow)
FR (1) FR2010869A1 (enrdf_load_stackoverflow)
GB (1) GB1239378A (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637114A (en) * 1970-09-03 1972-01-25 Philip Meshberg Device for codispensing two materials
US3685696A (en) * 1970-10-12 1972-08-22 Leonard L Marraffino Three part, two fluid dispenser
US4121736A (en) * 1976-08-23 1978-10-24 Mcgaw Jr Wilbert Hersman Hand held atomizer washing device
US5062547A (en) * 1989-05-26 1991-11-05 Metrohm Ag Volume measurement and dosage device
US5339990A (en) * 1992-11-10 1994-08-23 Wilder Robert E Adjustable pump dispenser
FR2804666A1 (fr) * 2000-02-04 2001-08-10 Oreal Distributeur pour le stockage d'au moins deux composants et la distribution selective soit d'un constituant seul, soit de leur melange, et procede pour sa mise en oeuvre
US20030071080A1 (en) * 2001-09-10 2003-04-17 Jean-Pierre Yquel Variable flow rate valve and container equipped therewith
US6920904B2 (en) 2001-05-09 2005-07-26 L'oreal S.A. Device for packaging and dispensing at least two products
US20110089189A1 (en) * 2005-08-29 2011-04-21 Anthony Pigliacampo Apparatus and methods for multi-fluid dispensing systems
US20150305474A1 (en) * 2012-11-28 2015-10-29 Icetec Inc. Cosmetic container

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54113092A (en) * 1978-02-24 1979-09-04 Nakano Denki Seisakushiyo Kk Pluggin connector
US4469252A (en) * 1981-04-10 1984-09-04 Aerosol Service Ag Two-compartment package

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637114A (en) * 1970-09-03 1972-01-25 Philip Meshberg Device for codispensing two materials
US3685696A (en) * 1970-10-12 1972-08-22 Leonard L Marraffino Three part, two fluid dispenser
US4121736A (en) * 1976-08-23 1978-10-24 Mcgaw Jr Wilbert Hersman Hand held atomizer washing device
US5062547A (en) * 1989-05-26 1991-11-05 Metrohm Ag Volume measurement and dosage device
US5339990A (en) * 1992-11-10 1994-08-23 Wilder Robert E Adjustable pump dispenser
EP1132318A1 (fr) * 2000-02-04 2001-09-12 L'oreal Distributeur pour la distribution sélective d'au moins deux composants, et procédé pour sa mise en oeuvre
FR2804666A1 (fr) * 2000-02-04 2001-08-10 Oreal Distributeur pour le stockage d'au moins deux composants et la distribution selective soit d'un constituant seul, soit de leur melange, et procede pour sa mise en oeuvre
US6520377B2 (en) 2000-02-04 2003-02-18 L'oreal Dispenser for selectively dispensing separately stored components
US6920904B2 (en) 2001-05-09 2005-07-26 L'oreal S.A. Device for packaging and dispensing at least two products
US20030071080A1 (en) * 2001-09-10 2003-04-17 Jean-Pierre Yquel Variable flow rate valve and container equipped therewith
US20110089189A1 (en) * 2005-08-29 2011-04-21 Anthony Pigliacampo Apparatus and methods for multi-fluid dispensing systems
US20150305474A1 (en) * 2012-11-28 2015-10-29 Icetec Inc. Cosmetic container
US9655431B2 (en) * 2012-11-28 2017-05-23 Icetec Inc. Cosmetic container

Also Published As

Publication number Publication date
JPS5011091B1 (enrdf_load_stackoverflow) 1975-04-26
ES368111A1 (es) 1971-06-16
FR2010869A1 (enrdf_load_stackoverflow) 1970-02-20
GB1239378A (enrdf_load_stackoverflow) 1971-07-14
DE1929844A1 (de) 1970-05-14

Similar Documents

Publication Publication Date Title
US3862705A (en) Hand-held dispenser with mixing valve and pressurizing valve
US6325248B1 (en) Container assembly
US3455489A (en) Dispensing two materials simultaneously from different compartments
US3850346A (en) Hand squeezable, plural chambered, liquid dispenser
US3241722A (en) Dispensing device
US3490651A (en) Dispenser system for simultaneous dispensing of separately stored fluids
US3543965A (en) Hand-held dispenser with two containers and two valves
US3181737A (en) Method of storing, combining and applying two-part polymer mixtures
US7267248B2 (en) Aerosol dispenser for mixing and dispensing multiple fluid products
US3540623A (en) Multi-product dispenser with co-dispensing valving means
US6520377B2 (en) Dispenser for selectively dispensing separately stored components
US4154378A (en) Metering valve for pressurized container
US3893596A (en) Upright-inverted aerosol dispenser
US3315693A (en) Anyside-up type aerosol valve
US2715481A (en) Dispensing device for containers holding products under pressure
US3503539A (en) Hand-held dispenser with dual valve
US3454198A (en) Dispensing device
US3894659A (en) Dispenser system for simultaneous dispensing of separately stored fluids
US3682355A (en) Pressure actuated valve
US3731847A (en) Plural compartment pressurized dispensing package
US3770165A (en) Mixing type liquid dispenser
US3525997A (en) Hand-held dispenser with dual valve
US3447551A (en) Upside-downside aerosol dispensing valve
US3550813A (en) Hand-held dispenser for mixing fluids
US3606963A (en) Aerosol dispenser for dispensing a multicomponent product

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