US3831823A - Openable closure with drip site - Google Patents
Openable closure with drip site Download PDFInfo
- Publication number
- US3831823A US3831823A US00042978A US4297870A US3831823A US 3831823 A US3831823 A US 3831823A US 00042978 A US00042978 A US 00042978A US 4297870 A US4297870 A US 4297870A US 3831823 A US3831823 A US 3831823A
- Authority
- US
- United States
- Prior art keywords
- slit
- conduit
- closure
- liquid
- protuberance
- 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
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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
- 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
- B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
- B65D47/2031—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure
Definitions
- ABSTRACT An opening in the form of a slit in the resilient wall of a hollow conduit has a skeg-like protuberance associated with it which tends to collect liquid flowing from said slit and thereby confine its flow off said conduit from a single site.
- an openable closure for taking samples from a liquid contained in a conduit is a resilient cap of rubber or other elastic plastic which is slit so that the slit will open and discharge liquid when the closure is bent along the line of the slit.
- Such closures are useful adjuncts in manometers for measuring liquid pressure of various body fluids, e.g., spinal fluid, and in other medical instruments where sampling is desirable.
- Such closures generally are shown in an application for US. Pat. Ser. No. 653,548 filed by one of us on July 14, 1967.
- This objective is accomplished in accordance with this invention by placing in the path of gravity flow of the liquid along the external surface after it has been discharged from the slit, a shaped drop-former from which is released, in a free drop, a succession of droplets or a stream constituted of the discharging liquid, thereby minimizing uncontrolled spread of the discharging liquid along other portions of the closure surfaces and random dripping.
- FIG. 1 is a side elevational view of the closure, partly broken away to show internal structure, and showing at the left the open end of a conduit to which the closure is adapted to be connected;
- FIG. 2 is a bottom view of the closure of FIG. 1, the device being rotated 90 from its position as shown in FIG. 1;
- FIG. 3 is a plan view of the closure shown in FIG. 1 and FIG. 2;
- FIG. 4 is a cross-sectional view taken along the line 44 of FIG. 1;
- FIG. 5 is a cross-sectional view taken along the line 5-5 of FIG. 1;
- FIG. 6 is a perspective view of the parts shown in FIG. 1 assembled together with certain parts in vertical cross-section and indicating by dotted lines how a finger and thumb can bend the closure upwardly to discharge liquid from the conduit.
- the closure shown in the drawings is made of a resilient material such as rubber or plastic and comprises a portion 20 at the left of greater diameter, having a central bore 21, and connected by a conical surface 22 to a portion 24 of smaller diameter having a smaller central bore 25 communicating with bore 21.
- the right hand end of portion 24 closes the bore 25.
- a slit 26 is formed preferably as a cross slit at the juncture of the conical surface 22 with the smaller portion 24 and the closure is provided along its top edge with a reinforcing rib 30 which helps to keep the parts normally in such a position as to compress the edges of the cross slit 26 together and prevent leakage.
- the slit or valve 26 may be opened by lifting the closed end portion 24 of the device, as indicated in FIG. 6, which separates the edges of slit 26.
- protuberance 32 Along the bottom portion of the closure there is a downwardly pointing skeg-like protuberance 32 having a forward perpendicular surface 33 so that as material is discharged, as best indicated in FIG. 5, through the slit it flows down the conical surface 22 and then downwardly on the front surface 33 of the protuberance to its bottom point where drops are formed and are successively released for collection.
- the rear surfaces 34 and 35 of protuberance 32 are angularly inclined and tapered to a line of juncture 36 to direct the liquid flow towards the bottom of protuberance 32 whenever surface 33 is too small to carry the entire discharge flow.
- the top of the reinforcing rib 30 may be marked LIF'T" as an indication to the operator as to how to open the closure.
- FIG. 1 shows a hollow conduit 40 to which the closure may be connected by telescoping together portion 20 over a reduced portion 42 of the conduit, as shown in FIG. 6. Liquid in the conduit bore 44 may thus pass into bore 25 with access to slit 26 for flow therethrough when the valve is opened.
- a hollow conduit for liquids comprising a hollow resilient tube having portions of different diameter connected by an intervening conical portion,
- a protuberance on the portion of larger diameter adjacent said conical portion forming a drip site said protuberance having a forward surface extending across the path of liquid flowing from said slit, when opened by bending said conduit, along the outer surface of said conical portion towards said portion of larger diameter and. collecting said flowing liquid and releasing it in the form of successive droplets at said drip site.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
An opening in the form of a slit in the resilient wall of a hollow conduit has a skeg-like protuberance associated with it which tends to collect liquid flowing from said slit and thereby confine its flow off said conduit from a single site.
Description
United States Patent [191 McWhorter et a1.
[ 1 Aug. 27, 1974 OPENABLE CLOSURE WITH DRIP SITE [75] Inventors: Daniel M. McWhor'ter, Arlington Heights; Frank K. Villari, Oak Park,
both of 111.
[73] Assignee: The Rendall Company, Walpole,
Mass.
[22] Filed: June 3, 1970 [21] Appl. No.: 42,978
[52] US. Cl. 222/490 [51] Int. Cl B6501 5/74 [58] Field of Search 222/108, 213, 420-422, 222/490, 556, 562, 428, 541; 251/4, 342;
[56] References Cited UNITED STATES PATENTS MacDonald 222/490 UX Salvesen 222/490 X 2,316,516 4/1943 Hammerstein 222/490 2,520,684 8/1950 Herzog 222/490 3,116,152 12/1963 Smith 222/541 X 3,174,694 3/1965 Kitabayashi 251/342 X 3,325,059 6/1967 Hein 222/420 X FOREIGN PATENTS OR APPLICATIONS 1,126,173 7/1956 France 222/420 82,991 9/1946 Norway 222/92 Primary Examiner-Stanley H. Tollberg Assistant Examiner-Norman L. Stack, Jr.
[57] ABSTRACT An opening in the form of a slit in the resilient wall of a hollow conduit has a skeg-like protuberance associated with it which tends to collect liquid flowing from said slit and thereby confine its flow off said conduit from a single site.
1 Claim, 6 Drawing Figures 1 OPENABLE CLOSURE WITH DRIP SITE This invention relates to a closure for an open end of a liquid conduit and more particularly to a manually openable closure equipped to release small quantities of a liquid from a specific site on the closure.
One of the most convenient forms of an openable closure for taking samples from a liquid contained in a conduit is a resilient cap of rubber or other elastic plastic which is slit so that the slit will open and discharge liquid when the closure is bent along the line of the slit. Such closures are useful adjuncts in manometers for measuring liquid pressure of various body fluids, e.g., spinal fluid, and in other medical instruments where sampling is desirable. Such closures generally are shown in an application for US. Pat. Ser. No. 653,548 filed by one of us on July 14, 1967. An annoying drawback of such structures has however been that liquid discharged from such a slit tends to cling to and flow along the external surfaces of the closure, making it difficult to collect the sample and tending to waste the draw-off by general wetting of the outside surface of the closure and of the fingers of the operator.
It is an object of this invention to allow the more complete collection of the liquid discharged through such a closure slit by reducing losses arising from spreading over the surrounding external surfaces.
This objective is accomplished in accordance with this invention by placing in the path of gravity flow of the liquid along the external surface after it has been discharged from the slit, a shaped drop-former from which is released, in a free drop, a succession of droplets or a stream constituted of the discharging liquid, thereby minimizing uncontrolled spread of the discharging liquid along other portions of the closure surfaces and random dripping.
With the drip site thus unvarying, collection in a vessel held below the drip site is readily accomplished without messiness.
A closure typical of the invention is shown in the accompanying drawings wherein:
FIG. 1 is a side elevational view of the closure, partly broken away to show internal structure, and showing at the left the open end of a conduit to which the closure is adapted to be connected;
FIG. 2 is a bottom view of the closure of FIG. 1, the device being rotated 90 from its position as shown in FIG. 1;
FIG. 3 is a plan view of the closure shown in FIG. 1 and FIG. 2;
FIG. 4 is a cross-sectional view taken along the line 44 of FIG. 1;
FIG. 5 is a cross-sectional view taken along the line 5-5 of FIG. 1; and
FIG. 6 is a perspective view of the parts shown in FIG. 1 assembled together with certain parts in vertical cross-section and indicating by dotted lines how a finger and thumb can bend the closure upwardly to discharge liquid from the conduit.
The closure shown in the drawings is made of a resilient material such as rubber or plastic and comprises a portion 20 at the left of greater diameter, having a central bore 21, and connected by a conical surface 22 to a portion 24 of smaller diameter having a smaller central bore 25 communicating with bore 21. The right hand end of portion 24 closes the bore 25.
A slit 26 is formed preferably as a cross slit at the juncture of the conical surface 22 with the smaller portion 24 and the closure is provided along its top edge with a reinforcing rib 30 which helps to keep the parts normally in such a position as to compress the edges of the cross slit 26 together and prevent leakage.
The slit or valve 26 may be opened by lifting the closed end portion 24 of the device, as indicated in FIG. 6, which separates the edges of slit 26.
Along the bottom portion of the closure there is a downwardly pointing skeg-like protuberance 32 having a forward perpendicular surface 33 so that as material is discharged, as best indicated in FIG. 5, through the slit it flows down the conical surface 22 and then downwardly on the front surface 33 of the protuberance to its bottom point where drops are formed and are successively released for collection. The rear surfaces 34 and 35 of protuberance 32 are angularly inclined and tapered to a line of juncture 36 to direct the liquid flow towards the bottom of protuberance 32 whenever surface 33 is too small to carry the entire discharge flow.
As shown in the drawings, the top of the reinforcing rib 30 may be marked LIF'T" as an indication to the operator as to how to open the closure.
FIG. 1 shows a hollow conduit 40 to which the closure may be connected by telescoping together portion 20 over a reduced portion 42 of the conduit, as shown in FIG. 6. Liquid in the conduit bore 44 may thus pass into bore 25 with access to slit 26 for flow therethrough when the valve is opened.
What is claimed is:
l. A hollow conduit for liquids comprising a hollow resilient tube having portions of different diameter connected by an intervening conical portion,
an openable slit in said conduit at the junction line between said portion of less diameter and said conical portion, and
a protuberance on the portion of larger diameter adjacent said conical portion forming a drip site, said protuberance having a forward surface extending across the path of liquid flowing from said slit, when opened by bending said conduit, along the outer surface of said conical portion towards said portion of larger diameter and. collecting said flowing liquid and releasing it in the form of successive droplets at said drip site.
3,831,823 August 27, 1974 Patent No. 7 Date Inventor s Daniel M. McWhorter and Frank K. Villari It is certified that error appears in the above-identiied patent and that said Letters Patent are hereby corrected as shown below:
In 'the caption, the Assignee, "The Rendall Company" should be --The Kendall Company- Signed and sealed this 3rd day of Dember 1974.
(SEAL) Attest:
McCOY M. GIBSON JR. 0. MARSHALL DANN Attesting Officer Commissipner of Patents
Claims (1)
1. A hollow conduit for liquids comprising a hollow resilient tube having portions of different diameter connected by an intervening conical portion, an openable slit in said conduit at the junction line between said portion of less diameter and said conical portion, and a protuberance on the portion of larger diameter adjacent said conical portion forming a drip site, said protuberance having a forward surface extending across the path of liquid flowing from said slit, when opened by bending said conduit, along the outer surface of said conical portion towards said portion of larger diameter and collecting said flowing liquid and releasing it in the form of successive droplets at said drip site.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00042978A US3831823A (en) | 1970-06-03 | 1970-06-03 | Openable closure with drip site |
CA114,325A CA942722A (en) | 1970-06-03 | 1971-05-31 | Openable closure with drip site |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00042978A US3831823A (en) | 1970-06-03 | 1970-06-03 | Openable closure with drip site |
Publications (1)
Publication Number | Publication Date |
---|---|
US3831823A true US3831823A (en) | 1974-08-27 |
Family
ID=21924790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00042978A Expired - Lifetime US3831823A (en) | 1970-06-03 | 1970-06-03 | Openable closure with drip site |
Country Status (2)
Country | Link |
---|---|
US (1) | US3831823A (en) |
CA (1) | CA942722A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5125544A (en) * | 1989-12-11 | 1992-06-30 | Helena Laboratories Corporation | Pipette pump |
US20090060682A1 (en) * | 2007-08-29 | 2009-03-05 | Hong Fu Jin Precision Industry (Shenzhen) Co. Ltd | Screw assembly with vibration-absorbing member |
CN104859933A (en) * | 2015-05-16 | 2015-08-26 | 李红彪 | Cap with drawable cut suction nozzle |
CN104859935A (en) * | 2015-05-16 | 2015-08-26 | 李红彪 | Cap with single-layer bottle mouth and drawable cut suction nozzle |
CN104859934A (en) * | 2015-05-17 | 2015-08-26 | 李红彪 | Cap with retractable side cut suction nozzle |
CN104890999A (en) * | 2015-06-23 | 2015-09-09 | 李红彪 | Side-cutting self-sealing bottle cover |
CN104943968A (en) * | 2015-05-17 | 2015-09-30 | 李红彪 | Protruding block suction nozzle type cut suction nozzle cap capable of being pulled |
CN104943969A (en) * | 2015-05-16 | 2015-09-30 | 李红彪 | Elastic tray suction nozzle type screwable scratched opening suction nozzle cap |
CN104960752A (en) * | 2015-05-17 | 2015-10-07 | 李红彪 | Bottle cap-type pulling suction nozzle cap with cuts |
CN105151505A (en) * | 2015-09-24 | 2015-12-16 | 李红彪 | Self-sealing leakage-proof sucker cover for lateral cut |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1593025A (en) * | 1923-03-17 | 1926-07-20 | Frederick L Macdonald | Dispensing tube |
US2263890A (en) * | 1939-09-18 | 1941-11-25 | Richard E Salvesen | Dispensing cap for containers |
US2316516A (en) * | 1940-08-29 | 1943-04-13 | Hammerstein Arthur | Dispensing device |
US2520684A (en) * | 1948-12-28 | 1950-08-29 | Herzog Carl | Self-closing dispensing device |
FR1126173A (en) * | 1955-06-15 | 1956-11-16 | Dropper bottle device | |
US3116152A (en) * | 1959-01-22 | 1963-12-31 | Elmer L Smith | Baby food container and spoon combined |
US3174694A (en) * | 1961-02-13 | 1965-03-23 | Kitabayashi Seiichi | Aerosol dispenser push button having a side slit |
US3325059A (en) * | 1965-07-23 | 1967-06-13 | Lincoln Lab Inc | Combination cap and dispenser for reconstituted vaccine |
-
1970
- 1970-06-03 US US00042978A patent/US3831823A/en not_active Expired - Lifetime
-
1971
- 1971-05-31 CA CA114,325A patent/CA942722A/en not_active Expired
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1593025A (en) * | 1923-03-17 | 1926-07-20 | Frederick L Macdonald | Dispensing tube |
US2263890A (en) * | 1939-09-18 | 1941-11-25 | Richard E Salvesen | Dispensing cap for containers |
US2316516A (en) * | 1940-08-29 | 1943-04-13 | Hammerstein Arthur | Dispensing device |
US2520684A (en) * | 1948-12-28 | 1950-08-29 | Herzog Carl | Self-closing dispensing device |
FR1126173A (en) * | 1955-06-15 | 1956-11-16 | Dropper bottle device | |
US3116152A (en) * | 1959-01-22 | 1963-12-31 | Elmer L Smith | Baby food container and spoon combined |
US3174694A (en) * | 1961-02-13 | 1965-03-23 | Kitabayashi Seiichi | Aerosol dispenser push button having a side slit |
US3325059A (en) * | 1965-07-23 | 1967-06-13 | Lincoln Lab Inc | Combination cap and dispenser for reconstituted vaccine |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5125544A (en) * | 1989-12-11 | 1992-06-30 | Helena Laboratories Corporation | Pipette pump |
US20090060682A1 (en) * | 2007-08-29 | 2009-03-05 | Hong Fu Jin Precision Industry (Shenzhen) Co. Ltd | Screw assembly with vibration-absorbing member |
CN104859933A (en) * | 2015-05-16 | 2015-08-26 | 李红彪 | Cap with drawable cut suction nozzle |
CN104859935A (en) * | 2015-05-16 | 2015-08-26 | 李红彪 | Cap with single-layer bottle mouth and drawable cut suction nozzle |
CN104943969A (en) * | 2015-05-16 | 2015-09-30 | 李红彪 | Elastic tray suction nozzle type screwable scratched opening suction nozzle cap |
CN104943968A (en) * | 2015-05-17 | 2015-09-30 | 李红彪 | Protruding block suction nozzle type cut suction nozzle cap capable of being pulled |
CN104859934A (en) * | 2015-05-17 | 2015-08-26 | 李红彪 | Cap with retractable side cut suction nozzle |
CN104960752A (en) * | 2015-05-17 | 2015-10-07 | 李红彪 | Bottle cap-type pulling suction nozzle cap with cuts |
CN104943968B (en) * | 2015-05-17 | 2017-11-07 | 中山市华宝勒生活用品实业有限公司 | Projection suction nozzle type can pull designated port suction nozzle cover |
CN104859934B (en) * | 2015-05-17 | 2017-11-14 | 中山市华宝勒生活用品实业有限公司 | Telescopic side designated port suction nozzle cover |
CN104890999A (en) * | 2015-06-23 | 2015-09-09 | 李红彪 | Side-cutting self-sealing bottle cover |
CN104890999B (en) * | 2015-06-23 | 2017-11-07 | 中山市华宝勒生活用品实业有限公司 | Draw self-enclosed bottle cap in a kind of side |
CN105151505A (en) * | 2015-09-24 | 2015-12-16 | 李红彪 | Self-sealing leakage-proof sucker cover for lateral cut |
Also Published As
Publication number | Publication date |
---|---|
CA942722A (en) | 1974-02-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MANUFACTURERS HANOVER TRUST COMPANY, AS AGENT Free format text: SECURITY INTEREST;ASSIGNOR:KENDALL COMPANY, THE;REEL/FRAME:005251/0007 Effective date: 19881027 |