US3923184A - Double screw cap system for sterile medical liquid container and method of opening same - Google Patents
Double screw cap system for sterile medical liquid container and method of opening same Download PDFInfo
- Publication number
- US3923184A US3923184A US338671A US33867173A US3923184A US 3923184 A US3923184 A US 3923184A US 338671 A US338671 A US 338671A US 33867173 A US33867173 A US 33867173A US 3923184 A US3923184 A US 3923184A
- Authority
- US
- United States
- Prior art keywords
- outer cap
- cap
- combination
- threads
- container
- 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
- B65D55/00—Accessories for container closures not otherwise provided for
- B65D55/02—Locking devices; Means for discouraging or indicating unauthorised opening or removal of closure
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S215/00—Bottles and jars
- Y10S215/03—Medical
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S215/00—Bottles and jars
- Y10S215/901—Tamper-resistant structure
Definitions
- ABSTRACT A sterile medical liquid container system that includes an inner cap and an outer cap nested together and having interconnecting splines.
- the inner cap has internal right-handed threads and is screwed onto a threaded bottle neck to hermetically seal this neck.
- the outer cap has external left-handed threads and is fused at a frangible joint to the thermoplastic bottle.
- a jacking ring with internal left-handed threads screws onto the outer cap and a continuous clockwise motion of the jacking ring acts to (l) fracture the outer cap, and (2) unscrew the combined intersplined inner and outer caps from the container neck.
- the double cap structure of this invention includes an inner cap with internal righthanded threads, and an outer cap with external left-handed threads.
- the outer cap fits over the inner cap and has a bottom end of the outer cap skirt sealed to the thermoplastic bottle.
- the inner and outer caps have skirts that are longitudinally splined together.
- a jacking ring with internal left-handed threads is screwed onto the outer cap. counterclockwise motion of this jacking ring first breaks apart the outer cap and then wedges tightly onto this outer cap.
- FIG. 1 is afront elevational view of the bottle and closure system as it is stored prior to opening;
- FIG. 2 is an exploded perspective view of the bottle and three elements of the Closure system
- FIG. 3 is an enlarged sectional view through a left side portion of the closure system, with both inner and Outer cap. seals intact;
- the container is shown as a thermoplastic blow-molded bottle 1 that has an upper end portion 2 to which is attached the Closure system, indicated generally as 3. At a lower end of the bottle is a base 4 and a hinged hanging tab 5. This hanging tab is for suspending the bottle in a mouth downward position if desired.
- top portion 2 of the bottle has a dispensing neck 6 that terminates in an outer pouring lip 7.
- Neck 6 has external threads 8 that are right-handed. The term righthanded means that the cap screws downwardly on these threads with a clockwise rotational motion.
- an external thermoplastic flange 9 At a base of neck 6 is an external thermoplastic flange 9.
- Inner cap 10 is internally threaded with right-handed threads which mesh with external threads 8 of the neck 6.
- Inner cap 10 includes a top wall 11 and a downwardly extending annular skirt 12. Extending longitudinally along an exterior surface of this skirt 12 are a series of ribs 13 and 14. The importance of these ribs will be mentioned later in their relationship to an outer cap.
- a thermoplastic outer Cap 15 fits over the inner cap and includes a top wall 16 and an annular downwardly extending skirt 17. At a lower end of skirt 17 is a thin thermoplastic frangible brim 18 integral with the inner cap. When the outer cap is assembled over the inner cap the frangible brim 18 is heat fused at an annular hermetic seal to flange 9. Thus, there is'a double hermetic seal made by the closure system.
- the inner cap 10 hermetically seals against pouring lip 7 and the frangible brim 18 is hermetically sealed at an annular heat fusion joint with the flange 9.
- the first structural feature includes a series of internal logitudinal ribs 19 and 20 on an internal surface of skirt 17. These ribs 19 and 20 interfit between ribs 13 and 14 of the inner cap 10.
- This interrelationship is called an intersplining of the inner and outer caps.
- This intersplining can also be created by forming the ribs as small longitudinal serrations on only the inner cap or outer cap, and then diametrically shrinking the outer cap onto the inner cap to impress these serrations on the other cap.
- shrinking can be done by forming the outer cap with more internal stress than the inner cap and then stress relieving the two capswith steam sterilization.
- Such stress relief is explained in detail in an application Ser. No. 338,684, by Elmer F. St. Amand and Thomas R. Thornbury entitled Threaded Closure System For Medical Liquid Container and Method of Making Same filed Mar. 7, 1973.
- the threads 21 on an cap are right-handed.
- the inner and outer caps can be considered a double screw closure system.
- the top element shown in FIG. 3 is a rigid jacking ring 22.
- This jacking ring has a knurled or grooved outer surface 23 for easy gripping.
- An internal surface has left-handed threads 24 that interfit and mesh with the threads 21 of the outer cap.
- FIG. 3 When the bottle neck, inner cap, outer cap and jacking ring are all assembled after the bottle has been filled with its liquid contents and sterilized, it appears as in FIG. 3.
- the top wall 11 of cap forms a first annular hermetic seal at with the pouring lip 7 of the bottle neck.
- the outer cap forms the second annular hermetic sea] at 26 at its annular fusion joint with the flange 9.
- the inter connecting rib l9 fits against a rib of the inner cap 10 to stop relative rotation of the inner and outer caps.
- the container with closure system is shipped to the hospital as shown in FIG. 3.
- the nurse or physician merely rotates the jacking ring counterclockwise.
- the left-handed threads 21 cause it to move downwardly a slight distance. This downward motion is not readily felt by the nurse or physician opening the bottle. To them it is a simple standard motion that they are quite accustomed to in unscrewing caps from bottles.
- the jacking ring outer and inner caps are removed as a unit.
- the inner cap will preferably fit tightly enough in the outer cap so that the weight of the inner cap will not cause it to fall out of the outer cap. Therefore, the three part unit can be unscrewed and feels as a single cap to the nurse or physician.
- FIGS. 5 to 8 illustrate the steps in opening this double screw elosure system.
- FIG. 5 shows the jacking nut as it is received at the hospital and is stored.
- the jacking nut has a slight space between jacking ring 22 and flange 9. This is so the jacking ring will not place undue stress on the frangible brim of the outer cap that is sealed to flange 9.
- the jacking ring is rotated counterclockwise as in FIG. 5 to move it downwardly into contact with the flange 9.
- the jacking ring 22 is further rotated as in FIG. 6 to fracture the outer cap at its frangible brim 18. After fracture, the inner and outer caps and the jacking ring are simultaneously removed in a continuation of the counterclockwise rotation of the cap system. Once removed, the liquid contents from the container can be simply poured out as in FIG. 8.
- the closure system and bottle of this invention work exceptionally well if the bottle is made of a polyallomer such as a propylene-ethylene copolymer thermoplastic material and the outer cap is likewise of the same propylene-ethylene copolymer thermoplastic material fused to this bottle.
- Eastman Chemical Company markets such a polyallomer under the name of TENITE.
- the inner cap and the outer jacking ring can be made of suitable rigid thermoplastic material.
- a container with inner and outer closures for storing and dispensing sterile liquids which includes a blow molded thermoplastic container with a dispensing outlet, said container and outer closure forming a unit that has a transverse abutment means surrounding the outlet, wherein the improvement comprises:
- a threaded dispensing neck on the container a threaded inner closure connected to the dispensing neck and forming a hermetic seal therewith to create a sealed unit; a separately formed injection molded outer cap with a longitudinal axis; said outer cap having both a thin frangible section and externally exposed threads, and said outer cap is sealed to the container proximate said abutment means with an annular bacteria-tight bond with the threads of the outer cap being in a predetermined alignment with the abutment means whereby said threads can receive a threaded opening member and guide it toward the abutment means for exerting a pressure against the abutment means to axially pry the outer cap apart at its frangible section; and rotational stop means on the outer cap and inner closure to prevent rotation of the outer cap relative to the inner closure.
- rotational stop means between the inner closure and outer cap include a series of longitudinally slideable interconnecting ribs internally of the outer cap and externally of the inner closure.
- the combination includes a threaded jacking ring that pries apart the outer cap and abuts at least a portion of the frangible brim of the outer cap to limit the rotational movement of the jacking ring relative to the outer cap after the frangible brim has been fractured.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
Description
Claims (9)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US338671A US3923184A (en) | 1973-03-07 | 1973-03-07 | Double screw cap system for sterile medical liquid container and method of opening same |
US05/613,321 US3950917A (en) | 1973-03-07 | 1975-09-15 | Method of opening a double screw cap system for sterile medical container |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US338671A US3923184A (en) | 1973-03-07 | 1973-03-07 | Double screw cap system for sterile medical liquid container and method of opening same |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/613,321 Division US3950917A (en) | 1973-03-07 | 1975-09-15 | Method of opening a double screw cap system for sterile medical container |
Publications (1)
Publication Number | Publication Date |
---|---|
US3923184A true US3923184A (en) | 1975-12-02 |
Family
ID=23325646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US338671A Expired - Lifetime US3923184A (en) | 1973-03-07 | 1973-03-07 | Double screw cap system for sterile medical liquid container and method of opening same |
Country Status (1)
Country | Link |
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US (1) | US3923184A (en) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4091949A (en) * | 1977-03-14 | 1978-05-30 | Baxter Travenol Laboratories, Inc. | Antibackoff threaded ring closure using ratchet means |
US4093093A (en) * | 1977-03-14 | 1978-06-06 | Baxter Travenol Laboratories, Inc. | Antibackoff closure |
US4106654A (en) * | 1977-03-10 | 1978-08-15 | American Hospital Supply Corporation | Container with side sealing closure and method of forming the seal thereof |
USRE31082E (en) * | 1977-03-14 | 1982-11-16 | Baxter Travenol Laboratories, Inc. | Hermetically sealed tamperproof port protector |
WO1997015507A1 (en) * | 1995-10-25 | 1997-05-01 | Merck & Co., Inc. | Piercing container cap |
US5758788A (en) * | 1995-10-25 | 1998-06-02 | Merck & Co., Inc. | Piercing container cap |
US5927531A (en) * | 1997-11-06 | 1999-07-27 | G K Packaging, Inc. | Combination container and closure wherein said closure is held against rotational and vertical movement on said container |
US20050211660A1 (en) * | 2004-03-27 | 2005-09-29 | Engelhard Corporation | Colorant container |
WO2006117505A1 (en) * | 2005-04-29 | 2006-11-09 | Obrist Closures Switzerland Gmbh | A tamper-evident closure |
US7234592B2 (en) | 2003-06-27 | 2007-06-26 | Fujifilm Corporation | Photographic processing agent cartridge and container usable therein |
US20070267379A1 (en) * | 2005-11-22 | 2007-11-22 | Palm-N-Turn, Llc | Reversible two-function cap for vial |
US7644902B1 (en) | 2003-05-31 | 2010-01-12 | Rexam Medical Packaging Inc. | Apparatus for producing a retort thermal processed container with a peelable seal |
US7766178B2 (en) | 2001-12-21 | 2010-08-03 | Rexam Medical Packaging Inc. | Closure for a retort processed container having a peelable seal |
US7780024B1 (en) | 2005-07-14 | 2010-08-24 | Rexam Closures And Containers Inc. | Self peel flick-it seal for an opening in a container neck |
US7798359B1 (en) | 2004-08-17 | 2010-09-21 | Momar Industries LLC | Heat-sealed, peelable lidding membrane for retort packaging |
US8100277B1 (en) | 2005-07-14 | 2012-01-24 | Rexam Closures And Containers Inc. | Peelable seal for an opening in a container neck |
US8251236B1 (en) | 2007-11-02 | 2012-08-28 | Berry Plastics Corporation | Closure with lifting mechanism |
US20150353241A1 (en) * | 2014-06-06 | 2015-12-10 | Fisher Scientific Company L.L.C. | Tamper-Evident Closure Assembly Including Outer Shell, And Related Systems And Methods |
US9758281B2 (en) | 2014-03-06 | 2017-09-12 | Fisher Scientific Company, L.L.C. | Tamper-evident closure assembly having two tamper-evidencing members, and related methods |
US10035627B2 (en) | 2014-06-06 | 2018-07-31 | Fisher Scientific Company, L.L.C. | Tamper-evident closure assembly including outer shell, and related systems and methods |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2140732A (en) * | 1934-11-10 | 1938-12-20 | James P Burke | Nonrefillable closure |
US3393818A (en) * | 1967-02-28 | 1968-07-23 | Mack Wayne Plastics Co | Plastic cap having pressure venting features |
US3394831A (en) * | 1966-06-13 | 1968-07-30 | American Hospital Supply Corp | Apparatus for storing and handling parenteral liquids and method for opening same |
US3730372A (en) * | 1971-11-19 | 1973-05-01 | Automatic Liquid Packaging | Plastic container |
-
1973
- 1973-03-07 US US338671A patent/US3923184A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2140732A (en) * | 1934-11-10 | 1938-12-20 | James P Burke | Nonrefillable closure |
US3394831A (en) * | 1966-06-13 | 1968-07-30 | American Hospital Supply Corp | Apparatus for storing and handling parenteral liquids and method for opening same |
US3393818A (en) * | 1967-02-28 | 1968-07-23 | Mack Wayne Plastics Co | Plastic cap having pressure venting features |
US3730372A (en) * | 1971-11-19 | 1973-05-01 | Automatic Liquid Packaging | Plastic container |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4106654A (en) * | 1977-03-10 | 1978-08-15 | American Hospital Supply Corporation | Container with side sealing closure and method of forming the seal thereof |
US4093093A (en) * | 1977-03-14 | 1978-06-06 | Baxter Travenol Laboratories, Inc. | Antibackoff closure |
USRE31082E (en) * | 1977-03-14 | 1982-11-16 | Baxter Travenol Laboratories, Inc. | Hermetically sealed tamperproof port protector |
US4091949A (en) * | 1977-03-14 | 1978-05-30 | Baxter Travenol Laboratories, Inc. | Antibackoff threaded ring closure using ratchet means |
WO1997015507A1 (en) * | 1995-10-25 | 1997-05-01 | Merck & Co., Inc. | Piercing container cap |
US5758788A (en) * | 1995-10-25 | 1998-06-02 | Merck & Co., Inc. | Piercing container cap |
AU712054B2 (en) * | 1995-10-25 | 1999-10-28 | Merck Sharp & Dohme Corp. | Piercing container cap |
US5927531A (en) * | 1997-11-06 | 1999-07-27 | G K Packaging, Inc. | Combination container and closure wherein said closure is held against rotational and vertical movement on said container |
US7766178B2 (en) | 2001-12-21 | 2010-08-03 | Rexam Medical Packaging Inc. | Closure for a retort processed container having a peelable seal |
US7644902B1 (en) | 2003-05-31 | 2010-01-12 | Rexam Medical Packaging Inc. | Apparatus for producing a retort thermal processed container with a peelable seal |
US7234592B2 (en) | 2003-06-27 | 2007-06-26 | Fujifilm Corporation | Photographic processing agent cartridge and container usable therein |
US20050211660A1 (en) * | 2004-03-27 | 2005-09-29 | Engelhard Corporation | Colorant container |
US8002133B2 (en) * | 2004-03-27 | 2011-08-23 | Basf Corporation | Colorant container |
US20110100987A1 (en) * | 2004-03-27 | 2011-05-05 | Basf Corporation | Container |
US8322913B2 (en) | 2004-03-27 | 2012-12-04 | Basf Corporation | Method of mixing paint by shaking container |
US20050211661A1 (en) * | 2004-03-27 | 2005-09-29 | Galownia Joseph M | Container |
US7798359B1 (en) | 2004-08-17 | 2010-09-21 | Momar Industries LLC | Heat-sealed, peelable lidding membrane for retort packaging |
CN100554094C (en) * | 2005-04-29 | 2009-10-28 | 奥布里斯特封闭瑞士有限公司 | Tamper-evident closure |
US20080105644A1 (en) * | 2005-04-29 | 2008-05-08 | Douglas Marcus H L | Tamper-Evident Closure |
WO2006117505A1 (en) * | 2005-04-29 | 2006-11-09 | Obrist Closures Switzerland Gmbh | A tamper-evident closure |
US7780024B1 (en) | 2005-07-14 | 2010-08-24 | Rexam Closures And Containers Inc. | Self peel flick-it seal for an opening in a container neck |
US8100277B1 (en) | 2005-07-14 | 2012-01-24 | Rexam Closures And Containers Inc. | Peelable seal for an opening in a container neck |
US20070267379A1 (en) * | 2005-11-22 | 2007-11-22 | Palm-N-Turn, Llc | Reversible two-function cap for vial |
US8251236B1 (en) | 2007-11-02 | 2012-08-28 | Berry Plastics Corporation | Closure with lifting mechanism |
US8650839B1 (en) | 2007-11-02 | 2014-02-18 | Berry Plastics Corporation | Closure with lifting mechanism |
US9758281B2 (en) | 2014-03-06 | 2017-09-12 | Fisher Scientific Company, L.L.C. | Tamper-evident closure assembly having two tamper-evidencing members, and related methods |
US20150353241A1 (en) * | 2014-06-06 | 2015-12-10 | Fisher Scientific Company L.L.C. | Tamper-Evident Closure Assembly Including Outer Shell, And Related Systems And Methods |
US9586730B2 (en) * | 2014-06-06 | 2017-03-07 | Fisher Scientific Company, L.L.C. | Tamper-evident closure assembly including outer shell, and related systems and methods |
US10035627B2 (en) | 2014-06-06 | 2018-07-31 | Fisher Scientific Company, L.L.C. | Tamper-evident closure assembly including outer shell, and related systems and methods |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: KENDALL MCGAW LABORATORIES, INC., 2525 MCGAW AVENU Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE NOVEMBER 26, 1985.;ASSIGNOR:AMERICAN HOSPITAL SUPPLY CORPORATION, A CORP OF IL;REEL/FRAME:004600/0460 Effective date: 19851126 Owner name: KENDALL MCGAW LABORATORIES, INC., A CORP OF OH,CAL Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:AMERICAN HOSPITAL SUPPLY CORPORATION, A CORP OF IL;REEL/FRAME:004600/0460 Effective date: 19851126 |
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Owner name: WELLS FARGO BANK, N.A. Free format text: SECURITY INTEREST;ASSIGNOR:MCGAW, INC., A CORP. OF OH;REEL/FRAME:005477/0809 Effective date: 19901022 |
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Owner name: KENDALL MCGAW LABORATORIES, INC. AN OH CORPORAT Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:MANUFACTURERS HANOVER TRUST COMPANY;REEL/FRAME:005709/0001 Effective date: 19901015 |
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Owner name: KENDALL MCGAW LABORATORIES, INC., AN OH CORP. Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:MANUFACTURERS HANOVER TRUST COMPANY;REEL/FRAME:005515/0206 Effective date: 19901015 |
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Owner name: MCGAW, INC., MORAINE, MONTGOMERY COUNTY, A CORP. O Free format text: MERGER;ASSIGNOR:MG ACQUISITION CORP. A CORP. OF DE (MERGED TO) KENDALL MCGAW LABORATORIES, INC., A CORP. OF OHIO;REEL/FRAME:005640/0520 Effective date: 19910205 |
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STCF | Information on status: patent grant |
Free format text: PATENTED FILE - (OLD CASE ADDED FOR FILE TRACKING PURPOSES) |
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AS | Assignment |
Owner name: GENERAL ELECTRIC CAPITAL CORPORATION, A NEW YORK C Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MCGAW, INC., A DELAWARE CORP.;REEL/FRAME:006073/0600 Effective date: 19920401 |
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AS | Assignment |
Owner name: MCGAW, INC. A CORP. OF DELAWARE Free format text: SECURITY INTEREST;ASSIGNOR:WELLS FARGO BANK, N.A.;REEL/FRAME:006139/0057 Effective date: 19920401 |