US2605938A - Valved drop forming stopper - Google Patents

Valved drop forming stopper Download PDF

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Publication number
US2605938A
US2605938A US716057A US71605746A US2605938A US 2605938 A US2605938 A US 2605938A US 716057 A US716057 A US 716057A US 71605746 A US71605746 A US 71605746A US 2605938 A US2605938 A US 2605938A
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Prior art keywords
plug
stopper
passage
bore
extending
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Expired - Lifetime
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US716057A
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Balcar Vojtech
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    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/26—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with slide valves, i.e. valves that open and close a passageway by sliding over a port, e.g. formed with slidable spouts
    • B65D47/261—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge with slide valves, i.e. valves that open and close a passageway by sliding over a port, e.g. formed with slidable spouts having a rotational or helicoidal movement
    • 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
    • Y10T137/86558—Plural noncommunicating flow paths
    • Y10T137/86566—Rotary plug
    • 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
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/88022—One valve head provides seat for other head
    • Y10T137/8803—Also carries head of other valve

Definitions

  • the object of invention is a closure or stopper, which makes it possible to empty the contents of a bottle in drops or in a continuous stream and makes possible measuring of great accuracy.
  • There are similar arrangements e. g. stoppers grounded in the neck of the bottle wherein the measuring mechanism is partly in the ystopper and partly in the neck of the bottle. But these stoppers have the following great disadvantage.
  • the axis of the stopper coincides with the axis of the neck and so it is possible that when the bottle is tilted which is done to a great extent when measuring doses, the stopper falls out of the bottle.
  • the object of invention is a dripping stopper, which solves and eliminates this disadvantage in a simple and original way. It makes an accurate dosingin drops or the letting out of a stream of liquid possible.
  • Fig. l is a View in vertical central section
  • Fig.,2 is a View of the stopper in top plan with a portion of the upper end of the stopper bod broken away to show a featured detail.
  • the body I of the stopper includes a lower cupped portion screw threaded atv la for screw threaded engagement upon the neck of the bottle (not shown) the contentsof which are to be-dispensed by gravity iiow principles, and an. upper solid cylindrical portion Ib having a diametral tapered bore Ic extending transversely therethrough.
  • a pair of spaced passages Id, le extend longitudinally through central section lf of the stopper body from bore Ic ⁇ to the screw-threaded interior lg.
  • a tapered plug 3 having a ground-in fit with bore Ic and rotatable about its longitudinal axis is provided with an axial passage 3a extending from the dispensing end 3b of the plug which communicates with a transverse passage 3c leading to the exterior of the plug.
  • Another axial passage 3d extends from the opposite end 3e of the plug and communicates with a second transverse passage 3f in the plug leading to the exterior thereof at its side.
  • the plug 3 is provided with a peripheral groove 3g for receiving a ball type detent 4 that is urged into groove 3g by spring 5, the ball 4, spring 5 and plug 6 to retain spring 5 in place being received in a transverse bore Ih in the stopper body that extends from its outer surface to the bore lc in alignment with groove 3g in the plug.
  • plug 3 is free to rotate on its axis, but endwise 3 Claims. (Cl. 222-422) displacement thereof in bore'llc is resisted by the coaction'of the detent ball 4 and groove 3g.
  • Transverse passages 3c, 3f in plug 3 are so alignedrwith respect to passages ld, le in the stopper body Vthat whenlplug 3 is vfully inserted in the bore Ic, passage 3c will communicate with turning with the fingers and contains a socket threadedat 3h for receiving a. threadedair adjusting screw 1.
  • the base of socket 3g is tapered at 3i to match acomplementary taper la at the inner end of screw l so that when the latter is screwed in or out of the socket, the spacing between the two tapered surfaces 3i, la, decreases or increases, respectively.
  • Screw 'I is also provided with a passageway 1b Y offset from the screw axis and extending longitudinally from tapered end 'la tothe opposite end surface of the plug, i. e. to atmosphere. Passage Sd in plug 3 leads tothe tapered base 3i of the socket. s
  • Control over the rate of airvadmission is obtained by manipulating screw 1. With the end 1a seated firmly against the tapered surface 3i, this being a ground fit, the inner end of passage 'lb is blocked off and no air can get through from atmosphere to the interior lg of the stopper and hence also the interior of the bottle. However by backing oi a turn or so on screw 1, a small space is established between the tapered surfaces la, 32', thus allowing air to enter at a very low rate through passageways 1b, 3d, 3f and le which permits the contents of the bottle to be discharged through passages Id, 3c and 3a in a droplike manner at a, corresponding low rate, making it easy to measure the number of drops dispensed.
  • the discharge rate can be increased by backing off the adjusting screw 'I still further thus increasing the drop rate until substantially a condition of continuous flow obtains.
  • the stopper is closed by screwing down on screw 1 until the tapered surfaces 1a, 3i meet thus blocking on all admission of air through the seriately arranged air inlet passages.
  • the stopper can also be closed” by slight rotation of plug 3. This not only blocks off the air inlet at passage le but also the fluid outlet at passage ld.
  • a dropper closure for bottles comprising a body portion having a transverse open-ended bore extending therethrough, spaced passages. extending through the body from the inner surface of the closure to said bore. a rotary plug extending through said bore having a liquid outlet passage extending from one end thereof to communicate with one of the passages through the body in one position of rotation of theplug, said plug having a threaded socket at the other end thereof having a seating surface at the bottom thereof and a passageway leading axially from the bottom of said socket to communicate with the other passage through the body in the aforesaid position of rotation of they plug and an adjusting screw in said socket having a seating surface atV the inner end thereof complementary to the seating surface at the bottom of the socket and having an air inlet passage opening on said seating surface spaced from the axial center thereof.
  • a dispensing closure for bottles comprising a body portion having a transverse open-ended tapered bore extending therethrough, a pair of spaced passages extending through the bodyl from the inner surface of the closure to said bore, a tapered rotary plug extending through said bore having a liquid outlet passage extending from the small end thereof to communicate with one of said passages through the body in one position of rotation of the plug, a' threaded socket in the larger end of the plughavingaconical bottom seating surface and an airl passage leading axially from the conical bottom to communicate with the other passage through the body in the aforesaid position of rotation ofthe plug and an air inlet shut oif and adjusting screw threaded into said socket having a conical end seating surface adapted for sealing engagement with the conical bottom of the socket and an excentrically disposed air passage extending from said conical end surface to the outer end thereof.
  • a dispensing closure for bottles comprising a body portion having a transverse open-ended tapered bore extending therethrough, a pair of spaced passages extending through the body from the inner surface of the closure to said bore, a tapered rotary plug extending through said bore having aV liquid outlet passage extending from the small end thereof to communicate with one of said passages through the body in one position-of rotation of the plug, a threaded socket in the larger end of the plug having a conical bottom seating surface and an air passage leading axially from the conical bottom to communicate with the other passage through the body'in the aforesaid position cf rotation of the plug, an air inlet shut off and adjusting screw threaded into said socket having a conical end seating surface adapted for ⁇ sealing engagement with the conical bottom of the socket and an excentrically disposed air passage extending fromsaid conical end surface to the outer end thereof and means for retaining said-plug from endwise movement in and from said bore includ-V ing an annular groove in the surface'

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Description

Aug. 5, 1952 v. BALCAR vALvED DROP FORMING sToPPER Filed Deo. 13, 1946,
Gttor-negs l Patented Aug. 5, 1952 UNHTED STATES A'rEN'i'OFFICE'.A
VALVED DROP FORMING STOPPER Vojtch Balear, Prague-Smichov, Czechoslovakia Application December 13, 1946, Serial No., '716,057
The object of invention is a closure or stopper, which makes it possible to empty the contents of a bottle in drops or in a continuous stream and makes possible measuring of great accuracy. There are similar arrangements e. g. stoppers grounded in the neck of the bottle wherein the measuring mechanism is partly in the ystopper and partly in the neck of the bottle. But these stoppers have the following great disadvantage.
As the stopper is placed in the neck of the bottle, the axis of the stopper coincides with the axis of the neck and so it is possible that when the bottle is tilted which is done to a great extent when measuring doses, the stopper falls out of the bottle. 1
The object of invention is a dripping stopper, which solves and eliminates this disadvantage in a simple and original way. It makes an accurate dosingin drops or the letting out of a stream of liquid possible.
vIn the; drawingswhich illustrate a preferred stopper construction embodying the invention, Fig. l is a View in vertical central section, and Fig.,2 is a View of the stopper in top plan with a portion of the upper end of the stopper bod broken away to show a featured detail.
Referring now to the drawings, the body I of the stopper includes a lower cupped portion screw threaded atv la for screw threaded engagement upon the neck of the bottle (not shown) the contentsof which are to be-dispensed by gravity iiow principles, and an. upper solid cylindrical portion Ib having a diametral tapered bore Ic extending transversely therethrough. A pair of spaced passages Id, le extend longitudinally through central section lf of the stopper body from bore Ic` to the screw-threaded interior lg.
A tapered plug 3 having a ground-in fit with bore Ic and rotatable about its longitudinal axis is provided with an axial passage 3a extending from the dispensing end 3b of the plug which communicates with a transverse passage 3c leading to the exterior of the plug. Another axial passage 3d extends from the opposite end 3e of the plug and communicates with a second transverse passage 3f in the plug leading to the exterior thereof at its side.
Intermediate the two passageways 3a, 3d, the plug 3 is provided with a peripheral groove 3g for receiving a ball type detent 4 that is urged into groove 3g by spring 5, the ball 4, spring 5 and plug 6 to retain spring 5 in place being received in a transverse bore Ih in the stopper body that extends from its outer surface to the bore lc in alignment with groove 3g in the plug. Thus, plug 3 is free to rotate on its axis, but endwise 3 Claims. (Cl. 222-422) displacement thereof in bore'llc is resisted by the coaction'of the detent ball 4 and groove 3g.
Transverse passages 3c, 3f in plug 3 are so alignedrwith respect to passages ld, le in the stopper body Vthat whenlplug 3 is vfully inserted in the bore Ic, passage 3c will communicate with turning with the fingers and contains a socket threadedat 3h for receiving a. threadedair adjusting screw 1. The base of socket 3g is tapered at 3i to match acomplementary taper la at the inner end of screw l so that when the latter is screwed in or out of the socket, the spacing between the two tapered surfaces 3i, la, decreases or increases, respectively.
Screw 'I is also provided with a passageway 1b Y offset from the screw axis and extending longitudinally from tapered end 'la tothe opposite end surface of the plug, i. e. to atmosphere. Passage Sd in plug 3 leads tothe tapered base 3i of the socket. s
The manner of operation of the improved stopper is believed to be self-evident from the drawings but a brief summary will be conducive to a clear understanding of the invention. Y
The liquid contents' of the bottle cannot be delivered by gravity flow through outlet passage 3a. unless air is admitted into the bottle to replace the liquid discharged. Hence by the simple expedient of adjusting the rate at which air is admitted into the bottle through the stopperI the rate at which the contents are delivered through outlet 3a. will likewise be adjusted.
Control over the rate of airvadmission is obtained by manipulating screw 1. With the end 1a seated firmly against the tapered surface 3i, this being a ground fit, the inner end of passage 'lb is blocked off and no air can get through from atmosphere to the interior lg of the stopper and hence also the interior of the bottle. However by backing oi a turn or so on screw 1, a small space is established between the tapered surfaces la, 32', thus allowing air to enter at a very low rate through passageways 1b, 3d, 3f and le which permits the contents of the bottle to be discharged through passages Id, 3c and 3a in a droplike manner at a, corresponding low rate, making it easy to measure the number of drops dispensed. The discharge rate can be increased by backing off the adjusting screw 'I still further thus increasing the drop rate until substantially a condition of continuous flow obtains.
The stopper is closed by screwing down on screw 1 until the tapered surfaces 1a, 3i meet thus blocking on all admission of air through the seriately arranged air inlet passages. The stopper can also be closed" by slight rotation of plug 3. This not only blocks off the air inlet at passage le but also the fluid outlet at passage ld.
Having now particularly described and ascertained the nature of my said invention and in what manner the same is t0 be performed, I declare that what I claim is:
l. A dropper closure for bottles comprising a body portion having a transverse open-ended bore extending therethrough, spaced passages. extending through the body from the inner surface of the closure to said bore. a rotary plug extending through said bore having a liquid outlet passage extending from one end thereof to communicate with one of the passages through the body in one position of rotation of theplug, said plug having a threaded socket at the other end thereof having a seating surface at the bottom thereof and a passageway leading axially from the bottom of said socket to communicate with the other passage through the body in the aforesaid position of rotation of they plug and an adjusting screw in said socket having a seating surface atV the inner end thereof complementary to the seating surface at the bottom of the socket and having an air inlet passage opening on said seating surface spaced from the axial center thereof.
2. A dispensing closure for bottles comprising a body portion having a transverse open-ended tapered bore extending therethrough, a pair of spaced passages extending through the bodyl from the inner surface of the closure to said bore, a tapered rotary plug extending through said bore having a liquid outlet passage extending from the small end thereof to communicate with one of said passages through the body in one position of rotation of the plug, a' threaded socket in the larger end of the plughavingaconical bottom seating surface and an airl passage leading axially from the conical bottom to communicate with the other passage through the body in the aforesaid position of rotation ofthe plug and an air inlet shut oif and adjusting screw threaded into said socket having a conical end seating surface adapted for sealing engagement with the conical bottom of the socket and an excentrically disposed air passage extending from said conical end surface to the outer end thereof.
3. A dispensing closure for bottles comprising a body portion having a transverse open-ended tapered bore extending therethrough, a pair of spaced passages extending through the body from the inner surface of the closure to said bore, a tapered rotary plug extending through said bore having aV liquid outlet passage extending from the small end thereof to communicate with one of said passages through the body in one position-of rotation of the plug, a threaded socket in the larger end of the plug having a conical bottom seating surface and an air passage leading axially from the conical bottom to communicate with the other passage through the body'in the aforesaid position cf rotation of the plug, an air inlet shut off and adjusting screw threaded into said socket having a conical end seating surface adapted for` sealing engagement with the conical bottom of the socket and an excentrically disposed air passage extending fromsaid conical end surface to the outer end thereof and means for retaining said-plug from endwise movement in and from said bore includ-V ing an annular groove in the surface'of said plug and a spring pressed detent carried by the body portion eng-aged in said groove.
VOJTCH BALCAR.
REFERENCESv CITED The following references are of record inA the file of this patent:
UNITED. STATESv .PATENTS
US716057A 1946-12-13 1946-12-13 Valved drop forming stopper Expired - Lifetime US2605938A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944568A (en) * 1955-11-28 1960-07-12 Bo Lofgren Valve particularly for use in an electro-metallizing pistol
US4697622A (en) * 1984-06-01 1987-10-06 Parker Hannifin Corporation Passive filling device
US4953763A (en) * 1988-11-04 1990-09-04 Kierum Chandler T Animal scent dispensing apparatus
US5383603A (en) * 1993-06-22 1995-01-24 Hayes Products L.P. Aspiration-type sprayer
DE102004029488B3 (en) * 2004-06-18 2006-01-19 Henkel Kgaa Closure for a container

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US220595A (en) * 1879-10-14 Improvement in tapping and venting barrels
US506502A (en) * 1893-10-10 Measuring-faucet
US517305A (en) * 1894-03-27 Self-regulating discharge for closed vessels
US755549A (en) * 1903-08-18 1904-03-22 Karl Rettig Dropping-stopper.
US834082A (en) * 1906-03-05 1906-10-23 Charles P Smith Power-transmission mechanism.
US897131A (en) * 1907-10-07 1908-08-25 Henry I Owen Medicine-dropper.
FR414741A (en) * 1909-06-25 1910-09-09 Adolphe Domec Tap for mineral water bottles and other applications
AT44025B (en) * 1908-10-28 1910-09-10 Gustav Oscar Mylius Liquid tap with air supply.
US1459642A (en) * 1922-07-24 1923-06-19 Walter Whittle Liquid dropper
US1633074A (en) * 1925-08-06 1927-06-21 Mott Richard H De Surgical device
US2333310A (en) * 1940-05-13 1943-11-02 Greening Walter Fluid flow control valve

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US220595A (en) * 1879-10-14 Improvement in tapping and venting barrels
US506502A (en) * 1893-10-10 Measuring-faucet
US517305A (en) * 1894-03-27 Self-regulating discharge for closed vessels
US755549A (en) * 1903-08-18 1904-03-22 Karl Rettig Dropping-stopper.
US834082A (en) * 1906-03-05 1906-10-23 Charles P Smith Power-transmission mechanism.
US897131A (en) * 1907-10-07 1908-08-25 Henry I Owen Medicine-dropper.
AT44025B (en) * 1908-10-28 1910-09-10 Gustav Oscar Mylius Liquid tap with air supply.
FR414741A (en) * 1909-06-25 1910-09-09 Adolphe Domec Tap for mineral water bottles and other applications
US1459642A (en) * 1922-07-24 1923-06-19 Walter Whittle Liquid dropper
US1633074A (en) * 1925-08-06 1927-06-21 Mott Richard H De Surgical device
US2333310A (en) * 1940-05-13 1943-11-02 Greening Walter Fluid flow control valve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944568A (en) * 1955-11-28 1960-07-12 Bo Lofgren Valve particularly for use in an electro-metallizing pistol
US4697622A (en) * 1984-06-01 1987-10-06 Parker Hannifin Corporation Passive filling device
US4953763A (en) * 1988-11-04 1990-09-04 Kierum Chandler T Animal scent dispensing apparatus
US5383603A (en) * 1993-06-22 1995-01-24 Hayes Products L.P. Aspiration-type sprayer
DE102004029488B3 (en) * 2004-06-18 2006-01-19 Henkel Kgaa Closure for a container
US20080257884A1 (en) * 2004-06-18 2008-10-23 Henkel Kgaa Cap for a Receptacle

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