US2784865A - Diaphragm sealed vent for containers - Google Patents

Diaphragm sealed vent for containers Download PDF

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Publication number
US2784865A
US2784865A US438050A US43805054A US2784865A US 2784865 A US2784865 A US 2784865A US 438050 A US438050 A US 438050A US 43805054 A US43805054 A US 43805054A US 2784865 A US2784865 A US 2784865A
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United States
Prior art keywords
plug
sealing
vent
venting
diaphragm
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Expired - Lifetime
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US438050A
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Glenn T Rieke
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Rieke Metal Products Corp
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Rieke Metal Products Corp
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Priority to US438050A priority Critical patent/US2784865A/en
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Publication of US2784865A publication Critical patent/US2784865A/en
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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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1672—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element
    • B65D51/1688—Venting occurring during initial closing or opening of the container, by means of a passage for the escape of gas between the closure and the lip of the container mouth, e.g. interrupted threads
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/16—Closures not otherwise provided for with means for venting air or gas
    • B65D51/1672—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element
    • B65D51/1677—Closures not otherwise provided for with means for venting air or gas whereby venting occurs by manual actuation of the closure or other element by rupturing a portion of the 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
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/913—Self-expanding anchor
    • 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
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/955—Locked bolthead or nut
    • Y10S411/965—Locked bolthead or nut with retainer
    • Y10S411/97—Resilient retainer

Definitions

  • This invention relates to a diaphragm sealed vent for containers, such as metal drums and the like, and particularly wherein there is employed a plastic plug provided with a sealing diaphragm adapted to receive a small plug for controlled venting.
  • Fig. 1 is a central vertical section through a portion of the container with the sealed vent unit therein.
  • Fig. 2 is an exploded view of the several elements of the diaphragm sealed vent unit shown in cross section.
  • Fig. 3 is a top plan view of Fig. 1.
  • Fig. 4 is a view taken from the lines 44 of Fig. 2.
  • the diaphragm sealed vent unit includes a sealing plug 14 preferably formed of a flexible and compressible material, such as polyethylene (natural).
  • Said plug is internally screw threaded at 15, being open at the top and initially closed at the bottom by a severable diaphragm 16. It is formed with an indented annular exterior wall 17 which is slightly larger than the opening 11 of the container so as to effect a seal therewith under compression.
  • the lower initially closed end of the plug is tapered inwardly and downwardly at 18 to facilitate entry of the plug into the opening 11.
  • the tapered portion terminates upwardly in a shoulder 19 to effect a lock with the under edge of the collar 12 upon the plug being forced therein.
  • An opposed sealing shoulder 20 lies in spaced relation to the locking shoulder 19 for sealing engagement with the ledge 13 of the container.
  • the upper portion of the plug is formed with a radially extending sealing surface 21 having an under cut portion 22 terminating in the sealing shoulder 20.
  • Said plug may be forcibly compressed through the opening 11 in the container to 2,784,865 Patented Mar. 12, 1957 lock with the collar 12 and effect a seal therefor through the wall 17 and between the sealing shoulder 20 and ledge 13.
  • a vent plug 23 is adapted to screw into the plug, said vent plug having an exteriorly threaded shank 24 and a head 25 provided with a tool-engaging slot 26.
  • the shank is slotted at 27 to provide a vent passage through the screw threads on one side thereof, said slot being open at its lower end and terminating at its upper end in a venting recess 28 surrounded by a sealing head 29 formed about the lower surface of the head 25.
  • a protective cap seal 30 is formed to fit over and be crimped about the undercut periphery 22 of the sealing plug 14, as shown in Fig. 1.
  • the cap which is of metal, is closed at the top and formed with an upper extension 31 adapted to snugly fit over the head 25 of the plug.
  • Said cap is flanged outwardly at 32 to seat over the sealing surface 21 of the sealing flange.
  • the initially cylindrical downwardly extending lip portion 33 of the cap is dimensioned to surround the undercut periphery 22 of the plug for crimping thereabout in tamper-proof sealing relation.
  • the plug 14 is pressed through the opening 11 to interlock with the collar 12 in sealing engagement with the container.
  • the diaphragm 16 being in place, the container will thus be sealed against passage of fluid or gases therethrough.
  • the vent plug 23 is screwed into the plug and the cap seal crimped thereabout. In this condition the container is sealed against venting or tampering with the contents.
  • the cap seal and vent plug are removed from the flange, whereupon the diaphragm 16 is severed therefrom, opening a passageway through the internal screw threaded portion.
  • the plug is then screwed into the flange, permitting venting of gases through the slot 27 provided the plug is not screwed firmly .in the flange with its sealing bead 29 in sealing engagement with the sealing surface 21, as shown in Fig. 1.
  • venting By backing the plug off from the flange to permit venting through the slot 27 and from under the bead 29, the extent of venting may be controlled. Thus, if the plug is backed off sufliciently there will be free venting therethrough, or by screwing the plug down tightly the venting will be sealed off by the sealing bead, and control of the venting may be effected through intermediate atljustment of the plug.
  • the plug 14 When it is desired to recondition the container for reuse, the plug 14 may be cut out and removed from the opening, and a new plug with its sealed diaphragm again pressed into place. While there is shown and described herein a protective cap seal indicated at 30, it is to be understood that the invention is not limited to the use of such a seal inasmuch as the flange with its severable diaphragm and the sealing vent plug provides a suflicient venting closure initially sealed until the plug is removed and the diaphragm severed. Thus, the invention may be used with or Without the cap, the latter merely providing the usual protection against tampering.
  • a vent unit for containers having an opening and sun rounding collar of predetermined depth comprising an axially bored internally threaded plug of compressible material closed by a severable diaphragm at its inner end and having an indented annular exterior wall of slightly less length than the axial length of said collar, said wall terminating at one end in a sealing shoulder engaging the outer end of said collar in compressible sealing relationship therewith and at its inner end terminating in a shoulder engaging in compressible sealing relationship with the inner end of said collar, said wall being slightly larger in diameter than the inner Wall of said collar, an inward ly and downwardly tapered end portion leading from said last mentioned shoulder to the inner end of said plug for facilitating the forcing of said plug through said collar with said Wall compressed therein and said shoulders in sealing engag'ement Withthe'op'posite' ends'o'f said collar, and an'eXternally threaded vent plug threaded into said bore, said vent plug being formed of compressible material With an integral cupped sealing head engaged with the outer end of said plug about

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

Description

March 12, 1957 G. T. RIEKE 2,734,865
DIAPHRAGM SEALED VENT FOR CONTAINERS Filed June 21. 1954 v INVENTOR. 620v 7'. F/EKE.
United States Patent DIAPHRAGM SEALED VENT FOR CONTAINERS Glenn T. Rieke, Auburn, Ind., assignor to Rieke Metal ProductsCorporation, Auburn, Ind., a corporation Application June 21, 1954, Serial No. 438,050
1 Claim. (Cl. 220--44) This invention relates to a diaphragm sealed vent for containers, such as metal drums and the like, and particularly wherein there is employed a plastic plug provided with a sealing diaphragm adapted to receive a small plug for controlled venting.
It has heretofore been the practice to provide two fittings in the head of fifty-five gallon drums, for example, one serving as an air vent for the other, wherein a pump or faucet may be utilized in either. It is the standard practice to employ pipe sizes wherein the larger closure is of a two inch size and the smaller closure of three-quarters inch size. However, it is desired, and therefore the purpose of this invention, to provide a vent for the container head opposite the drain plug.
It is accordingly the purpose of this invention to mount in such opening of the container a diaphragm sealed grommeted type of plastic plug to receive and house a small venting plug provided with a passage so that when the plug is removed and the diaphragm punctured, the venting plug may then be reinserted in the plug to control venting therethrough to the extent that it may be backed away from the plug in the manner hereinafter more particularly described. It may be noted that in the reconditioning and reuse of the container, the plug may be readily cut out and replaced with a new fitting by a simple and economical operation.
The full nature of the invention will be understood from the accompanying drawings and the following description and claim:
Fig. 1 is a central vertical section through a portion of the container with the sealed vent unit therein.
Fig. 2 is an exploded view of the several elements of the diaphragm sealed vent unit shown in cross section.
Fig. 3 is a top plan view of Fig. 1.
Fig. 4 is a view taken from the lines 44 of Fig. 2.
In the drawings there is shown a wall portion of the container to be vented having an opening 11 surrounded by a collar 12 and sealing ledge 13.
The diaphragm sealed vent unit includes a sealing plug 14 preferably formed of a flexible and compressible material, such as polyethylene (natural). Said plug is internally screw threaded at 15, being open at the top and initially closed at the bottom by a severable diaphragm 16. It is formed with an indented annular exterior wall 17 which is slightly larger than the opening 11 of the container so as to effect a seal therewith under compression. The lower initially closed end of the plug is tapered inwardly and downwardly at 18 to facilitate entry of the plug into the opening 11. The tapered portion terminates upwardly in a shoulder 19 to effect a lock with the under edge of the collar 12 upon the plug being forced therein. An opposed sealing shoulder 20 lies in spaced relation to the locking shoulder 19 for sealing engagement with the ledge 13 of the container. The upper portion of the plug is formed with a radially extending sealing surface 21 having an under cut portion 22 terminating in the sealing shoulder 20. Said plug may be forcibly compressed through the opening 11 in the container to 2,784,865 Patented Mar. 12, 1957 lock with the collar 12 and effect a seal therefor through the wall 17 and between the sealing shoulder 20 and ledge 13.
A vent plug 23 is adapted to screw into the plug, said vent plug having an exteriorly threaded shank 24 and a head 25 provided with a tool-engaging slot 26. The shank is slotted at 27 to provide a vent passage through the screw threads on one side thereof, said slot being open at its lower end and terminating at its upper end in a venting recess 28 surrounded by a sealing head 29 formed about the lower surface of the head 25.
A protective cap seal 30 is formed to fit over and be crimped about the undercut periphery 22 of the sealing plug 14, as shown in Fig. 1. For this purpose the cap, which is of metal, is closed at the top and formed with an upper extension 31 adapted to snugly fit over the head 25 of the plug. Said cap is flanged outwardly at 32 to seat over the sealing surface 21 of the sealing flange. The initially cylindrical downwardly extending lip portion 33 of the cap is dimensioned to surround the undercut periphery 22 of the plug for crimping thereabout in tamper-proof sealing relation.
In the use of the above described unit the plug 14 is pressed through the opening 11 to interlock with the collar 12 in sealing engagement with the container. The diaphragm 16 being in place, the container will thus be sealed against passage of fluid or gases therethrough. The vent plug 23 is screwed into the plug and the cap seal crimped thereabout. In this condition the container is sealed against venting or tampering with the contents. However, when placed in use for permiting withdrawal of the contents or the venting of the container, the cap seal and vent plug are removed from the flange, whereupon the diaphragm 16 is severed therefrom, opening a passageway through the internal screw threaded portion. For controlling the venting the plug is then screwed into the flange, permitting venting of gases through the slot 27 provided the plug is not screwed firmly .in the flange with its sealing bead 29 in sealing engagement with the sealing surface 21, as shown in Fig. 1.
By backing the plug off from the flange to permit venting through the slot 27 and from under the bead 29, the extent of venting may be controlled. Thus, if the plug is backed off sufliciently there will be free venting therethrough, or by screwing the plug down tightly the venting will be sealed off by the sealing bead, and control of the venting may be effected through intermediate atljustment of the plug.
When it is desired to recondition the container for reuse, the plug 14 may be cut out and removed from the opening, and a new plug with its sealed diaphragm again pressed into place. While there is shown and described herein a protective cap seal indicated at 30, it is to be understood that the invention is not limited to the use of such a seal inasmuch as the flange with its severable diaphragm and the sealing vent plug provides a suflicient venting closure initially sealed until the plug is removed and the diaphragm severed. Thus, the invention may be used with or Without the cap, the latter merely providing the usual protection against tampering.
The invention claimed is:
A vent unit for containers having an opening and sun rounding collar of predetermined depth comprising an axially bored internally threaded plug of compressible material closed by a severable diaphragm at its inner end and having an indented annular exterior wall of slightly less length than the axial length of said collar, said wall terminating at one end in a sealing shoulder engaging the outer end of said collar in compressible sealing relationship therewith and at its inner end terminating in a shoulder engaging in compressible sealing relationship with the inner end of said collar, said wall being slightly larger in diameter than the inner Wall of said collar, an inward ly and downwardly tapered end portion leading from said last mentioned shoulder to the inner end of said plug for facilitating the forcing of said plug through said collar with said Wall compressed therein and said shoulders in sealing engag'ement Withthe'op'posite' ends'o'f said collar, and an'eXternally threaded vent plug threaded into said bore, said vent plug being formed of compressible material With an integral cupped sealing head engaged with the outer end of said plug about the threaded bore therein, and a gas'venting passage extending through the screw threaded portion of said vent plug from the inner end communicating with said cup portion, whereby said plug will be self sealing and said'vent plug will seal ofi venting upon being 'secrewed into plug sealing engagement and will break such sealing to permit venting of said passage uponbeing backed off'from said plug out of sealing engagement.
References Cited in the file of this patent UNITED STATES PATENTS 866,938 Kinsey Sept. 24, 1907 1,241,352 Doering et al. Sept. 25, 1941 2,228,936 Walter Ian. 14, 1941 2,368,431 Smith Jan. 30, 1945 2,412,169 ONeil Dec. 3, 1946 2,653,609 Smith Sept. 29, 1953
US438050A 1954-06-21 1954-06-21 Diaphragm sealed vent for containers Expired - Lifetime US2784865A (en)

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Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2876775A (en) * 1955-10-03 1959-03-10 Sr Courtland H Barr Blood sample collection apparatus
US3021029A (en) * 1959-01-21 1962-02-13 Danielson Mfg Company Vent tube and cap assembly
US3076668A (en) * 1957-10-09 1963-02-05 Famely Max Fittings for retaining cylindrical members in place
US3101205A (en) * 1958-08-25 1963-08-20 Norman R Benham Anchor structure for brake cables and the like
US3131038A (en) * 1961-04-07 1964-04-28 John E Jackson Spudding anchor
US3199666A (en) * 1962-08-20 1965-08-10 Dallas Republic National Ba Of Coin-holders
US3319833A (en) * 1964-08-11 1967-05-16 George A Church Toothbrush and dentifrice holder
US3352195A (en) * 1965-12-16 1967-11-14 Illinois Tool Works Self-retained nut with imperforate head
US3386757A (en) * 1965-02-23 1968-06-04 Gen Motors Corp Combination mold and fastening means
US3487544A (en) * 1968-02-16 1970-01-06 Bernard Weissman Dental venting device
US3610263A (en) * 1968-05-31 1971-10-05 Gary Alan Walters Fuel tank safety valve assembly
US3888347A (en) * 1973-08-06 1975-06-10 Thomas Rollin Kramer Inflated containers for fluid pressurized balls
US3958719A (en) * 1971-12-16 1976-05-25 Ward Dennis H Relating to containers
US3964508A (en) * 1974-07-17 1976-06-22 Chemidyne Corporation Safety cap assembly for pressurized vessels
US4070848A (en) * 1977-04-28 1978-01-31 Lingle Cleo M Fastening bar assembly for frameless insulating panels
US4291788A (en) * 1977-04-19 1981-09-29 Tokico Ltd. Cylinder head
US4310102A (en) * 1978-04-03 1982-01-12 The Continental Group, Inc. Closure for pressure container
US4552283A (en) * 1983-11-18 1985-11-12 Filterwerk Mann & Hummel Gmbh Safety device for clamping screws on pressurized fluid receptacles
US4733888A (en) * 1986-12-10 1988-03-29 Toelke Lester W Protector for threaded connections
US4905863A (en) * 1988-06-09 1990-03-06 Kelch Corp. Vent for portable gas tank or the like
US5160054A (en) * 1991-04-22 1992-11-03 Ingersoll-Rand Company Tamper evident vent system for containers
US5193703A (en) * 1990-03-02 1993-03-16 Hewlett-Packard Company Methods and apparatus for forming an integral high pressure seal using mechanical actuation
EP1099644A1 (en) * 1999-11-09 2001-05-16 DATOGRAF APPARATEBAU GMBH & CO. Container closure
US20060037958A1 (en) * 2004-08-20 2006-02-23 Marple C S Tamper evident plug and combination
US20060096985A1 (en) * 2004-11-09 2006-05-11 Stolzman Michael D Venting lid with safety seal
US20070164561A1 (en) * 2004-03-11 2007-07-19 Joong-hee Lee High gas-tightened metallic nozzle-boss for a high pressure composite vessel
US20080031702A1 (en) * 2006-08-01 2008-02-07 Ken-Ching Chen Fast nail plug
US20110107793A1 (en) * 2009-11-12 2011-05-12 Greg Reynolds X-Earring expandable opening
DE102009049948A1 (en) * 2009-10-19 2011-05-19 Kautex Maschinenbau Gmbh pressure vessel
US20120020740A1 (en) * 2010-07-21 2012-01-26 Norio Otsuga Connection structure for a manhole pipe and a sewer main pipe
US20120273508A1 (en) * 2011-04-28 2012-11-01 Haseloh Peter G Fitting for a plastic-lined tank, and method for manufacturing a tank incorporating same
USD731048S1 (en) * 2013-03-08 2015-06-02 Covidien Lp EVQ diaphragm of an exhalation module
US9528643B2 (en) * 2014-12-02 2016-12-27 Cnh Industrial Canada, Ltd. Air grommet connector
US20180290800A1 (en) * 2015-04-20 2018-10-11 Greif International Holding Bv Closure caps

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US866938A (en) * 1907-04-29 1907-09-24 Ernest U Kinsey Vacuum-vent for jars.
US1241352A (en) * 1915-02-23 1917-09-25 Charles Doering Jr Water-dispensing device.
US2228936A (en) * 1936-11-25 1941-01-14 Carl W Walter Flask and closure means therefor
US2368431A (en) * 1943-07-19 1945-01-30 Arthur E Smith Ampoule
US2412169A (en) * 1943-12-24 1946-12-03 Continental Can Co Vacuumized can closure
US2653609A (en) * 1950-08-26 1953-09-29 Arthur E Smith Container closure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US866938A (en) * 1907-04-29 1907-09-24 Ernest U Kinsey Vacuum-vent for jars.
US1241352A (en) * 1915-02-23 1917-09-25 Charles Doering Jr Water-dispensing device.
US2228936A (en) * 1936-11-25 1941-01-14 Carl W Walter Flask and closure means therefor
US2368431A (en) * 1943-07-19 1945-01-30 Arthur E Smith Ampoule
US2412169A (en) * 1943-12-24 1946-12-03 Continental Can Co Vacuumized can closure
US2653609A (en) * 1950-08-26 1953-09-29 Arthur E Smith Container closure

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2876775A (en) * 1955-10-03 1959-03-10 Sr Courtland H Barr Blood sample collection apparatus
US3076668A (en) * 1957-10-09 1963-02-05 Famely Max Fittings for retaining cylindrical members in place
US3101205A (en) * 1958-08-25 1963-08-20 Norman R Benham Anchor structure for brake cables and the like
US3021029A (en) * 1959-01-21 1962-02-13 Danielson Mfg Company Vent tube and cap assembly
US3131038A (en) * 1961-04-07 1964-04-28 John E Jackson Spudding anchor
US3199666A (en) * 1962-08-20 1965-08-10 Dallas Republic National Ba Of Coin-holders
US3319833A (en) * 1964-08-11 1967-05-16 George A Church Toothbrush and dentifrice holder
US3386757A (en) * 1965-02-23 1968-06-04 Gen Motors Corp Combination mold and fastening means
US3352195A (en) * 1965-12-16 1967-11-14 Illinois Tool Works Self-retained nut with imperforate head
US3487544A (en) * 1968-02-16 1970-01-06 Bernard Weissman Dental venting device
US3610263A (en) * 1968-05-31 1971-10-05 Gary Alan Walters Fuel tank safety valve assembly
US3958719A (en) * 1971-12-16 1976-05-25 Ward Dennis H Relating to containers
US3888347A (en) * 1973-08-06 1975-06-10 Thomas Rollin Kramer Inflated containers for fluid pressurized balls
US3964508A (en) * 1974-07-17 1976-06-22 Chemidyne Corporation Safety cap assembly for pressurized vessels
US4291788A (en) * 1977-04-19 1981-09-29 Tokico Ltd. Cylinder head
US4070848A (en) * 1977-04-28 1978-01-31 Lingle Cleo M Fastening bar assembly for frameless insulating panels
US4310102A (en) * 1978-04-03 1982-01-12 The Continental Group, Inc. Closure for pressure container
US4552283A (en) * 1983-11-18 1985-11-12 Filterwerk Mann & Hummel Gmbh Safety device for clamping screws on pressurized fluid receptacles
US4733888A (en) * 1986-12-10 1988-03-29 Toelke Lester W Protector for threaded connections
US4905863A (en) * 1988-06-09 1990-03-06 Kelch Corp. Vent for portable gas tank or the like
US5193703A (en) * 1990-03-02 1993-03-16 Hewlett-Packard Company Methods and apparatus for forming an integral high pressure seal using mechanical actuation
US5160054A (en) * 1991-04-22 1992-11-03 Ingersoll-Rand Company Tamper evident vent system for containers
AU658642B2 (en) * 1991-04-22 1995-04-27 Ingersoll-Dresser Pump Company A tamper evident vent system for containers
WO1993022214A1 (en) * 1991-04-22 1993-11-11 Ingersoll-Rand Company A tamper evident vent system for containers
EP1099644A1 (en) * 1999-11-09 2001-05-16 DATOGRAF APPARATEBAU GMBH & CO. Container closure
US20070164561A1 (en) * 2004-03-11 2007-07-19 Joong-hee Lee High gas-tightened metallic nozzle-boss for a high pressure composite vessel
US7648042B2 (en) * 2004-03-11 2010-01-19 Korea Composite Research Co., Ltd. High gas-tightened metallic nozzle-boss for a high pressure composite vessel
US7537132B2 (en) 2004-08-20 2009-05-26 American Flange & Mfg. Co., Inc. Tamper evident plug and combination
US20060037958A1 (en) * 2004-08-20 2006-02-23 Marple C S Tamper evident plug and combination
US20060096985A1 (en) * 2004-11-09 2006-05-11 Stolzman Michael D Venting lid with safety seal
US20080031702A1 (en) * 2006-08-01 2008-02-07 Ken-Ching Chen Fast nail plug
DE102009049948A1 (en) * 2009-10-19 2011-05-19 Kautex Maschinenbau Gmbh pressure vessel
DE102009049948B4 (en) * 2009-10-19 2012-02-02 Kautex Maschinenbau Gmbh pressure vessel
US8505762B2 (en) 2009-10-19 2013-08-13 Kautex Maschinenbau Gmbh Vessel neck construction of a pressure vessel
US20110107793A1 (en) * 2009-11-12 2011-05-12 Greg Reynolds X-Earring expandable opening
US20120020740A1 (en) * 2010-07-21 2012-01-26 Norio Otsuga Connection structure for a manhole pipe and a sewer main pipe
US20120273508A1 (en) * 2011-04-28 2012-11-01 Haseloh Peter G Fitting for a plastic-lined tank, and method for manufacturing a tank incorporating same
USD731048S1 (en) * 2013-03-08 2015-06-02 Covidien Lp EVQ diaphragm of an exhalation module
US9528643B2 (en) * 2014-12-02 2016-12-27 Cnh Industrial Canada, Ltd. Air grommet connector
US20180290800A1 (en) * 2015-04-20 2018-10-11 Greif International Holding Bv Closure caps
US10703547B2 (en) * 2015-04-20 2020-07-07 Greif International Holding Bv Closure caps

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