US3397510A - Closuring of containers - Google Patents

Closuring of containers Download PDF

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Publication number
US3397510A
US3397510A US426535A US42653565A US3397510A US 3397510 A US3397510 A US 3397510A US 426535 A US426535 A US 426535A US 42653565 A US42653565 A US 42653565A US 3397510 A US3397510 A US 3397510A
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US
United States
Prior art keywords
container
cap
closure
crown
mouth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US426535A
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English (en)
Inventor
Wyard Walter Harvie
Hill John Charles
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crown Packaging UK Ltd
Original Assignee
Metal Box PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metal Box PLC filed Critical Metal Box PLC
Application granted granted Critical
Publication of US3397510A publication Critical patent/US3397510A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B3/00—Closing bottles, jars or similar containers by applying caps
    • B67B3/02—Closing bottles, jars or similar containers by applying caps by applying flanged caps, e.g. crown caps, and securing by deformation of flanges
    • B67B3/10—Capping heads for securing caps
    • B67B3/12—Capping heads for securing caps characterised by being movable axially relative to cap to deform flanges thereof, e.g. to press projecting flange rims inwardly

Definitions

  • This disclosure relates to a closing head suitable for the application of closures to jars or like containers.
  • the head comprises a sleeve terminating in a lower closure ring having camming surfaces formed thereon for the inwardly camming of the peripheral skirt .of the closure.
  • a closure contacting plunger is mounted within the sleeve and is biased downwardly by a spring-biasing member which acts upon the aforementioned plunger through a universal joint. Stop means within the sleeve lie in blocking relationship to the plunger and comprise the only means for maintaining the plunger within the sleeve.
  • This invention relates to the closuring of containers and in particular to a closing head for securing to the mouth end of a container, for example a bottle or a jar, a closure cap consisting of a flat crown and a depending annular skirt.
  • a closing head for the purpose mentioned above, wherein the head is connectable with actuating means operable to effect axial movement of the head relative to a container stationary on a support therefor and having a cap loosely applied to the mouth end thereof, said head during axial movement thereof towards the support being arranged to effect mechanical engagement of the cap skirt with the exterior sides of the mouth end of the container and to deform the crown about the mouth rim of the container into a panelled depression which is of lesser diameter than the internal diameter of the mouth rim and extends into the mouth of the container.
  • the closing head may comprise a hollow housing, one end of which is connectable with said actuating means, a closing sleeve connected to said housing for movement therewith and having the free end thereof formed as a ring arranged to effect said mechanical engagement between the skirt and the sides of the mouth end of the container, a cap crown deforming member located in the closing sleeve for axial movement therewith and relative thereto, said member having a stop face to determine the extent of movement of said member into said mouth end, and a spring located in said housing and sleeve and acting on said member to effect the deformation of the cap crown.
  • Said member may be provided with an annular rib to effect said deformation of the crown.
  • the spring may act on said member through a pad element and a rigid ball located between said member and pad.
  • Mechanical engagement between the skirt and the mouth end of the container may be eifected between a projection or projections extending from the exterior sides of the mouth end of the container and a continuous curl formed at the free edge of the cap skirt and said ring may have an interior surface including a tapering leading end portion to engage a part at least of the free edge portion of the skirt and to move it into engagement with the undersides of the projection or projections.
  • the mouth end of the container may be provided with an annular bead which is spaced from the mouth rim ice end from which emanate multi-start screw threads which extend towards the mouth rim and said ring may be arranged to cause contiguous portions of the curl respectively to be compressed against the faces of said threads and to be engaged beneath the threads.
  • FIGURE 1 is a sectional elevation of a closing head according to the invention
  • FIGURES 2 and 3 illustrate the mode of operation of the closing head
  • FIGURE 4 illustrates the top of one form of jar to which a closure cap can be secured by the closing head.
  • the closing head comprises a hollow housing 1 to one end of which is screwed an adaptor 2 for connection to a closuring machine, (not shown but of any suitable known kind), which includes actuating means operable to effect axial movement of the closing head relative to a container, for example a jar 3, stationary on a support 4, FIGURE 2, and having a cap 5 loosely applied to the mouth end thereof.
  • a closing sleeve 6 is connected to the housing 1 for movement therewith and the free end of the sleeve is formed as a ring 7 which is arranged to effect mechanical engagement between the skirt 8 of the cap and the sides of the mouth end of the container.
  • a cap crown deforming member 9 is located in the sleeve 6 for axial movement therewith and relative thereto and has an annular rib 10 to effect deformation of the fiat crown 11, FIGURE 2, of the cap about the mouth rim 12 of the container into a panelled depression 13, FIG- URE 3, which extends into the mouth of the container and is of a diameter less, preferably only slightly less, than the internal diameter of the mouth rim 12.
  • a stop face 14 extends laterally from the rib 10 to determine the extent of movement of the rib 10 into the mouth end of the container, and the stop face 14 preferably slopes slightly in a downward direction from the rib 10 towards the tapered leading end portion 15 provided on the interior surface of the ring 7.
  • a spring 16 located in the housing and sleeve acts on the deforming member 9 to effect deformation of the cap crown.
  • the spring 16 acts on the member 9 through a pad element 17 and a rigid ball 18, for example a steel ball, which is located between the member 9 and pad element 17 and is engaged in recesses 19, 20 formed respectively in the member 9 and pad element 17.
  • the provision of the pad element 17 permits the predetermined pressure exerted by the spring 16 to be evenly applied to the member 9 even though the member 9 may be caused to wobble by irregularities in the mouth rim of the container.
  • the container shown as being closured in FIGURES 2 and 3 is of the kind illustrated in FIGURE 4.
  • This container has a mouth end provided with an annular bead 21 which is spaced from the mouth rim 12 and from which emanate multi-start screw-threads 22 which extend towards the mouth rim 12.
  • the closure cap has a continuous curl 23 formed at the free edge of the skirt.
  • Containers and container closures suitable for use with the closing head herein described may be any of a number of well known configurations, as will be apparent to one of ordinary skill in the art. However, the closing head herein described is particularly suitable for the application of a closure to a jar such as that shown in FIGURE 4.
  • the closure 5, shown in FIGURES 2 and 3 may take on any of a number of well known closure configurations such as, for example, the closure configuration shown in the United States Patent No. 3,273,303 to J. C. Hill, dated Sept. 20, 1966.
  • a container 3 with a closure cap 5 loosely applied to the month end thereof is stood on the support 4 beneath the closing head and the head is then moved axially downwards towards the support 4.
  • the cap crown deforming memb r 9 moves therewith until the rib 10 is engaged with the flat crown of the cap, FIGURE 2.
  • the head spring 16 causes the rib 10 to deform the crown about the mouth rim 12 of the container to form the panelled depression 13, FIGURE 3, and the depth of the panelled depression is determined by the engagement of the stop face 14 with that portion of the cap crown which is disposed directly above the mouth rim 12, FIGURE 3.
  • the tapered leading end portion 15 of the ring 7 causes contiguous portions of the curl 23 respectively to be compressed against the faces of the multistart screw threads 22 and to engage beneath the threads to provide for screw-off removal of the closure.
  • the container employed comprises multi-start screw threads 22 as seen in FIGURE 4
  • the final configuration of the peripheral skirt of the closure 5 conforms to the outer periphery of the container 3 in a manner well known in the art.
  • the configuration of the downwardly depending peripheral skirt portion 8 will depend upon which of a number of known closure configurations are used as exemplified in the aforementioned United States Patent No. 3,273,303.
  • Holes 24 are provided in the member 9 to prevent the possibility of suction between the crown of the cap and the face of member 9.
  • the container illustrated in FIGURE 4 is an example of a container in which mechanical engagement between the cap skirt and the mouth end of the container is effected between a plurality of projections, being the threads 22, but it is to be understood that in some instances the container may have a single continuous projection, such as a rib or bead, extending around the exterior of the month end and with which the cap skirt is caused to make mechanical engagement.
  • cap crown deforming member 9 has been described as provided with an annular rib 10 for effecting deformation of the crown but if desired the deformation may be effected by a projection extending from the member 9 and having a flat face into which the holes 24 extend.
  • containers are, in known manner, subjected to vacuum processing .
  • the caps have been fully applied to the containers and this has necessitated the use of caps specially designed to valve or vent during the heat-treatment process so as to allow the cap to fractionally lift to permit gases to be driven off from the product for the purpose of improving shelf-life.
  • the panelling of the crown relieves the stress in the material of the cap and the removal of this stress allows the cap to valve during vacuum processing for the purpose above mentioned. It will accordingly be understood that by using a closing head as herein described it is possible to effect vacuum processing of closed containers by the known methods without the necessity of providing caps specially designed for this purpose as heretofore.
  • the depth of the rib 10 be within the range of from 0.015 to 0.030 inch.
  • a closing head for securing a closure to a container body comprising an outer sleeve terminating in a closure ring having inwardly extending stop means formed therein, plunger means mounted within said sleeve having a closure contacting portion normally extending into said ring and an outwardly extending flange portion overlyingly contacting said stop means, spring means mounted within said sleeve for normally biasing said outwardly extending flange portion into contact with said stop means, and a universal joint directly intermediate said spring means and said plunger means, said universal joint including a plate-like member closely proximate and parallel to said plunger means flange portion and at an opposite side thereof from said stop means, a ball lying centrally between and contacting both said plunger means and said plate-like member, said spring means being in contact with said plate-like member on the opposite side thereof from said ball and at points proximate the edge of said plate-like member, a periphery of said flange portion being normally spaced from an adjacent inner surface portion
  • closure contacting portion includes axially downwardly protruding closure deformation means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US426535A 1964-02-05 1965-01-19 Closuring of containers Expired - Lifetime US3397510A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4948/64A GB1033135A (en) 1964-02-05 1964-02-05 Improvements in or relating to the closuring of containers

Publications (1)

Publication Number Publication Date
US3397510A true US3397510A (en) 1968-08-20

Family

ID=9786901

Family Applications (1)

Application Number Title Priority Date Filing Date
US426535A Expired - Lifetime US3397510A (en) 1964-02-05 1965-01-19 Closuring of containers

Country Status (5)

Country Link
US (1) US3397510A (xx)
BE (1) BE659362A (xx)
GB (1) GB1033135A (xx)
MY (1) MY6700050A (xx)
NL (1) NL6500942A (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4173104A (en) * 1978-04-17 1979-11-06 American Flange & Manufacturing Co., Inc. Bottle capping apparatus and method
DE3939783A1 (de) * 1989-12-01 1991-06-06 Henri Haist Tiefgezogener drehverschluss aus aluminium fuer unter innendruck stehende glasflaschen sowie tiefziehvorrichtung fuer einen verschliesskopf zum herstellen derartiger drehverschluesse

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE550392A (xx) *
BE542826A (xx) *
US1244494A (en) * 1916-05-01 1917-10-30 American Metal Cap Co Chuck for jar-closures.
US1956214A (en) * 1932-11-26 1934-04-24 Crown Cork & Seal Co Method and apparatus for applying closures
US2015913A (en) * 1932-10-26 1935-10-01 Apex Paper Products Corp Bottle capping machine
US2112842A (en) * 1935-09-12 1938-04-05 Aluminum Co Of America Capping machine
CH349502A (de) * 1957-01-14 1960-10-15 Aeratom Ag Vorrichtung zum Anbringen von deformierbaren Verschlusskappen am Ausgusshals von Behältern, insbesondere von mit einem Ventil versehenen Verschlusskappen an mit Druckmedien zu füllenden Flaschen
AT213727B (de) * 1958-11-08 1961-02-27 Alfons Isele-Aregger Verfahren und Vorrichtung zur Herstellung eines Flaschenverschlusses
US3273303A (en) * 1959-05-06 1966-09-20 Metal Box Co Ltd Method of applying container closure

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE550392A (xx) *
BE542826A (xx) *
US1244494A (en) * 1916-05-01 1917-10-30 American Metal Cap Co Chuck for jar-closures.
US2015913A (en) * 1932-10-26 1935-10-01 Apex Paper Products Corp Bottle capping machine
US1956214A (en) * 1932-11-26 1934-04-24 Crown Cork & Seal Co Method and apparatus for applying closures
US2112842A (en) * 1935-09-12 1938-04-05 Aluminum Co Of America Capping machine
CH349502A (de) * 1957-01-14 1960-10-15 Aeratom Ag Vorrichtung zum Anbringen von deformierbaren Verschlusskappen am Ausgusshals von Behältern, insbesondere von mit einem Ventil versehenen Verschlusskappen an mit Druckmedien zu füllenden Flaschen
AT213727B (de) * 1958-11-08 1961-02-27 Alfons Isele-Aregger Verfahren und Vorrichtung zur Herstellung eines Flaschenverschlusses
US3273303A (en) * 1959-05-06 1966-09-20 Metal Box Co Ltd Method of applying container closure

Also Published As

Publication number Publication date
BE659362A (xx)
GB1033135A (en) 1966-06-15
NL6500942A (xx) 1965-08-06
MY6700050A (en) 1967-12-31

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