US3818677A - Closure sealing machines - Google Patents

Closure sealing machines Download PDF

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Publication number
US3818677A
US3818677A US00280207A US28020772A US3818677A US 3818677 A US3818677 A US 3818677A US 00280207 A US00280207 A US 00280207A US 28020772 A US28020772 A US 28020772A US 3818677 A US3818677 A US 3818677A
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US
United States
Prior art keywords
closure
closure sealing
head
piston
sealing machine
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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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US00280207A
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English (en)
Inventor
J Herbert
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.)
Arconic Closure Systems International UK Ltd
Original Assignee
Metal Closures Ltd
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Publication date
Application filed by Metal Closures Ltd filed Critical Metal Closures Ltd
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    • 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
    • B67B3/18—Capping heads for securing caps characterised by being rotatable, e.g. for forming screw threads in situ

Definitions

  • a detachable headset for use with a closure sealing machine for securing a closure to a bottle, has a number of applying or sealing tools, usually in the form of rollers, arranged around its central axis. Each tool is moved inwardly to its operative position, wherein it engages a closure, by means of pressure fluid acting on a piston contained in a cylinder associated with the tool. Each tool may be mounted at one end of a pivoted actuating arm, the other end of which is engaged by the piston associated with the tool. In a preferred construction pressure fluid is led to the cylinders through the application head of the machine to which the headset is attached.
  • This invention relates to closure sealing machines of the type for sealing bottles and other containers by applying closures thereto, and is particularly concerned with the application of metal closures to bottles and other containers.
  • the invention principally relates to scaling machines of the type in which the applied closure is acted upon by pressure applied to the closure in a radially inward direction, for deforming the skirt of the closure or for a thread rolling operation, for example, whilst pressure is also applied to the top of the closure in an endwise direction, usually in a direction along thelongitudinal axis of the container.
  • headsets embody tools which in addition to moving around the closure as the headset rotates as a whole, also revolve simultaneously about their own axes of symmetry. These tools or so-called spinning rollers, which usually revolve solely by reason of frictional contact with the closure, thus perform an orbital motion around the closure.
  • a single headset may perform more than one operation at the same time.
  • alternate tools arranged circumferentially around the headset may perform deforming operations on two different zones of the closure. It should also be understood that headsets are not restricted to use in deforming closures but may be used simply for such operations as tightening screwon caps.
  • the headsets are interchangeably mountable on the application head of the sealing machine and in most cases it is necessary for the headset tools to derive at least their bodily orbital motion from power or drive means in the application head.
  • the application head is also adapted for applying a regulated endwise pressure to the top of the closure being applied.
  • each application head and headset should be as compact as possible to reduce the overall size of the machine as determined by the diameter of the circle on which the application heads are arranged. Since the clearance which must be left between each application head is normally determined by the width of the headset, it is evident that modifications to the construction of headsets which result in reduction of their size will have a considerable effect in reducing the overall size of multi-head machines.
  • a detachable headset for an application head of a closure sealing machine, said headset comprising a head block, a series of cylinders arranged around an axis of said block, a piston arranged in each cylinder, means whereby pressure fluid may be introduced into each of said cylinders to cause movement of the piston in one direction, means for returning the piston to its original position on release of said fluid pressure from said cylinder, a series of closure sealing or applying tools circumferentially spaced in relation to said axis and each mounted on said block so that it is capable of inward movement relative to said axis, each tool being associated with one piston and cylinder, and means for transmitting movement of each piston in its said one direction to its associated tool, whereby movement of said piston in said direction causes inward movement of said associated tool towards said axis.
  • the headset may include an actuating arm arrangement for each cooperating piston and closure sealing or applying tool, and a pivot axis in said block for each actuating arm arrangement, whereby movement of said piston in said one direction is transmitted to the tool by means of an arm or arms of said arm arrangement pivotable about said pivot axis.
  • cylinders there are four cylinders arranged around the head block and therefore four closure applying tools (usually rollers). This is in contrast to some conventional headsets where there have been six tools.
  • the number of cylinders required can however be varied by suitable choice of cylinder diameter; some appropriate alteration in working fluid pressure may also be required.
  • the cylinders may be arranged in a plane or may be placed at vertically alternating levels to suit many combinations of cylinder number and diameter.
  • the present headset is of particular use in the application of rolled-on and pilfer-proof closures.
  • the independent mounting of the tools which take the form of freely rotatable rollers, is of importance since it allows the functions of thread rolling and skirt rolling, usually effected by different forms of rollers, alternately disposed around the closure, to be carried out independently of each other.
  • the use of independently mounted rollers allows full compensation of each roller in relation to the diameter of the closure being applied.
  • the application of radial pressure to the skirt of the closure by the rollers is substantially constant since the pressure applied by the pistons is independent of the position of the piston in the cylinder.
  • the headset is able to adjust itself to inequalities in the container without altering the degree of deformation of the closure.
  • each roller of each headset may be controlled from a central point in this way.
  • the normal side pressure systems embodying springs and overstroke devices have to be adjusted individually for each of the roller arms of each headset and such adjustment repeated for each headset on each application head of a multi-head machine.
  • the headsets of this invention have the further advantages that they can be quickly and easily pre-set without reference to the sealing machine, they can be removed from the machine without interference with their setting and they can be stocked as ready-built units for rapid changeover. This last feature is of importance in obtaining maximum utilisation of sealing machine capacity.
  • FIGS. 1A and 1B are contiguous parts of a sectional elevation, generally on line DD of FIG. 4 but with a skirt roller assembly and a thread roller assembly shown radially extended and in section, of an application head and headset of a multi-head closure sealing machine,
  • FIG. 2 is a transverse sectional view of the headset on the line AA of FIG. 1,
  • FIG. 3 is a plan view of the machine in the direction of the arrow B of FIG. 1, showing adjacent application heads,
  • FIG. 4 is a plan view of the headset in the direction of the arrow C of FIG. 1, and
  • FIG. 5 is a side elevation of the application head and headset of FIG. 1, with the headset shown separated from the application head.
  • FIGS. 1 and 5 there is shown an application head 1 of a multi-head closure sealing machine and a headset 2 connected to the lower end of the head 1.
  • the neck of a bottle 3 is shown in engagement with the headset 2.
  • the multi-head machine includes a rotatable turret assembly having a number of radially extending arms, one of which is shown at 101 in FIG. 3.
  • the application heads are arranged on a circle centred on the axis of rotation of the turret assembly and are supported by longitudinal guides 102 mounted on the arms 101 and which cooperate with abutments 103 formed on the application head to allow vertical movement of the head for transmitting endwise pressure to the top of a closure being applied to the bottle 3.
  • a head carrier 4 comprising an upstanding flange 5 and a casing 6.
  • a bearing pin 7 is connected to the flange 5 and carries a cam follower 7a which is engaged with a cam track 107 formed in part of a fixed central support 100 around which the turret assembly revolves. Vertical motion is therefore imparted to each head as it revolves with the turret assembly.
  • the cylindrical casing 6 defines a cylinder 8 within which moves a piston 9.
  • An air supply duct 10 leads through the carrier 4 to the upper part of the cylinder 8.
  • the piston 9 has a bowled head 11 and a sealing ring 12 arranged in a groove around its outer surface.
  • An upper pressure block 13 is bolted directly to the piston 9 and is surrounded at its upper end by a stepped annular disc 14 which is bolted to the lower end of the casing 6.
  • the inner part of the disc 14 provides a lower stop for movement of the piston 9 in the cylinder 8.
  • the pressure block 13 has a central blind bore 15 extending from its lower surface and a transverse air duct 16 communicating with the bore 15.
  • a pressure block stem 17 which has a central axial passage 18 is received within the bore 15.
  • a short transverse bore 19 in the stem 17 connects the passage 18 to the duct 16 in the block 13.
  • the part of the stem 17 around the bore 19 is sealed in the bore 15 by sealing rings 20.
  • a flange 21 of the pressure block 13 is bolted to a short tubular section 22.
  • the tubular section 22 has an inwardly directed flange 23 which closely surrounds a threaded portion 24 of the stem 17.
  • Upper and lower lock-nuts 25,26 are threaded on the portion 24 and lock onto the flange 23 to locate the pressure block stem 17 in relation to the tubular section 22.
  • the section 22 is provided with an opening 27 through which access may be obtained to the lock-nuts 25,26.
  • a generally tubular drive housing 28 is bolted to the lower end of the tubular section 22. Adjacent its ends the housing 28 supports upper and lower roller bearings 29, 30 within which is rotatably mounted a drive spindle 31 surrounding the pressure block stem 17.
  • a gear member is mounted around the drive spindle 31 and is drivingly connected thereto by means of a key 32a.
  • One side 33 of the drive housing 28 is cut-away so that a drive gear (indicated generally at 132) or the like may engage the gear member 32.
  • the drive gear 132 is connected to the fixed support 100 and the gear member 32 is therefore rotated by virtue of the rotation of the head with the turret assembly.
  • Upper and lower spacers 34, 35 surrounding the drive spindle 31 locate the gear member 32 by abutment with the upper and lower bearings 29,30 respectively.
  • Axial location of the drive spindle 31 is provided by a pair of lock-nuts 36, 37, threaded on the upper end of the spindle 31 and which engage part of the bearing assembly 29, and a stepped part 38 of the spindle, which engages part of the bearing assembly 30.
  • a bearing cap 39 is bolted to the lower end of the drive housing 28 and holds an oil seal 40 in engagement with the outer surface of the drive spindle 31.
  • the lower end of the drive spindle 31 is formed with a tapered part 41 adapted for non-rotatable engagement with an internally tapered boss 42 on the headset 2.
  • the boss 42 is externally screw-threaded and is tightened into engagement with the spindle 31 by a head joint nut 43.
  • the pressure stem 17 passes through the tapered part 41 and into a bore 44 in the headset.
  • the passage 18 through the stem 17 is blocked by a plug 45 near the joint between the head 1 and headset 2 and four oblique ducts 46 lead to an annular recess in the tapered part 41 of the spindle 31 forming an air chamber 47.
  • a seal 48 is mounted in the spindle 31 around the pressure stem 17 above the chamber 47.
  • Four passages 49 lead from the air chamber 47 through the tapered part 41 and connect with passages 50 through the boss 42.
  • a key 51 is mounted in the face of the tapered part 41 and engages in a keyway in boss 42 to hold passages 49 and 50 in register.
  • a sealing ring 52 is mounted around the pressure stem 17 just below the boss 42.
  • the boss 42 forms part of a head block 53 on which the tools of the headset are mounted.
  • a head cap 54 is bolted to the head block and surrounds the boss 42.
  • the head block 53 is formed with four cylinders 55 (see also FIG. 2).
  • Each of the passages 50 connects with a cylinder 55 for movement by air pressure of a piston 56 in the cylinder.
  • the pistons 56 act directly on actuating arms 57 connected to actuating spindles 58 rotatably mounted in the block 53.
  • Each arm 57 has an adjustable stop 59 which engages part of the block 53 to limit the extent by which the piston 56 can move in an outward direction.
  • Torsion springs 60 are mounted around the spindle 58 and act between the arms 57 and part of the block 53 to return the pistons 56 to their inner positions when air pressure is removed from the cylinders 55.
  • each thread roller arm 61 carries a thread roller 63 which is mounted on a shaft 64 rotatably mounted in a bearing sleeve 65 arranged in the arm 61 at a slight angle to the vertical.
  • the thread roller 63 is axially movable in relation to the arm 61 and is biased upwardly by means of a compression spring 66 acting between the sleeve 65 and a flanged disc 67 engaging a shoulder 68 on the shaft 64.
  • the springs 66 are fairly light so that relatively free axial movement of the rollers 63 is allowed. The rollers are therefore allowed to follow the thread on the bottle and the springs simply return the rollers to their initial position when the arms 62 are retracted.
  • each bearing sleeve 71 may be adjusted since it is received in a threaded bore in the arm 62.
  • the position of the sleeve 71 in relation to the arm 62 is fixed by means of a grub screw 71a.
  • a lower pressure block 73 is connected by a screwthread to the end of the pressure stem 17.
  • a needle bearing 74 and bearing seal 75 are mounted between the pressure block 73 and the head block 53 around the end of the pressure stem 17.
  • the lower part of the pressure stem 17 is formed with a bore 76, slightly larger than the passage 18.
  • the plug 45 is an interference fit within the bore 76.
  • the pressure block 73 is adapted to reform the head of the closure and includes a head pressure member 79 which is slidably contained in the bore 76.
  • a compression spring 80 is arranged between part of the block 73 and the pressure member 79 to bias the member 79 downwardly.
  • Cross pins 81 pass into opposing sides of member 79 and act in slots 82 in the pressure block 73 to restrict vertical movement of the pressure member 79.
  • a rod 78 is slidably mounted in bore 76 and a bore through pressure member 79 and a compression spring 77 arranged in bore 76 between the plug 45 and the upper end of rod 78 gives downward bias to the rod.
  • the head pressure applied to the top of a closure being applied by the pressure member 79 is transmitted through the upper pressure block 13, pressure stem 17 and lower pressure block 73.
  • the upper pressure block 13 is connected to the piston 9 which is permanently in contact with air under pressure admitted to the cylinder 8 through the duct 10.
  • the basic movement bringing the pressure member into contact with the bottle is derived from the movement of cam follower 7a in cam track 107, and before this mechanically controlled movement is completed head pressure is applied by virtue of the air pressure in cylinder 8 acting at all times on piston 11. Beyond this point the residual cam displacement merely causes differential movement of cylinder 8 relative to piston 11 and the resulting increase in pressure is negligible.
  • the pressure is transmitted to the piston 9 by the air which acts as a cushion preloaded to impose a total load equivalent to the pressure multiplied by the effective piston area.
  • the air acts as a cushion preloaded to impose a total load equivalent to the pressure multiplied by the effective piston area.
  • Air for introduction to the cylinders 55 is initially passed through the duct 16 into the passage 18 in the pressure stem 17. From here it passes via the passage 46 to the annular chamber 47 in the rotating drive spindle 31.
  • Each of the cylinders 55 is connected by separate passages 49, 50 to the chamber 47 for simultaneous operation of the pistons 56.
  • Air is introduced into the duct 16 of each application head by a flexible pipe leading from an air control valve carried by the turret adjacent the application head.
  • Each air control valve receives air from a stationary central pipe through a rotary gland.
  • the air control valve is typically operable so that flexible pipe can be connected to pressurised air from the central pipe or to atmosphere.
  • the air control valve can be operated by further carn means on the support and both the timing and duration of air supply to and from duct 16 may be controlled in this manner.
  • the headset may be arranged so that the skirt and/or thread roller arms pivot on a pin which is inclined to the vertical.
  • the pivot pin is horizontal and the arms rock in a vertical plane, the rollers being carried on vertical spindles extending from one end of the arms.
  • An important refinement of the present apparatus is the separate control of fluid pressure delivered to the skirt and thread rollers.
  • separate passages to the respective cylinders in the headset are required. This may conveniently be arranged by having additional passages parallel to passages 16 and 18 and an additional annular chamber around the pressure stem 17 adjacent the chamber 47, together with suitable passages through the tapered part 41 of the application head and through the headset for connecting the supply to the appropriate cylinders.
  • a closure sealing machine for securing a closure to a container comprising:
  • headset detachable as a unit from said application head, including a head block having a coupling formation adapted for attachment in a predetermined relative rotational position to said coupling formation on said shaft, said application head and said head block having respective fluid passageways which communicate with each other when said coupling formations are in said predetermined relative rotational position; said head block also having a series of cylinders arranged around the axis of rotation of said head block; a piston disposed in each cylinder; passage means leading from said fluid passageways in said coupling formations to said cylinders for introducing pressurized fluid into each of said cylinders to cause movement of each of said pistons in one direction; means for returning each of said pistons to its original position on release of the pressurized fluid from each of said cylinders; a series of closure sealing tools circumferentially spaced in relation to the axis of rotation of said head block, each of said tools being mounted on said block for inward
  • a closure sealing machine further including an actuating arm arrangement for each cooperating piston and closure sealing tool, and a pivot axis in said head block for each actuating arm arrangement, whereby movement of said piston in said one direction is transmitted to the tool by means of said arm arrangement pivotable about said pivot axis.
  • a closure sealing machine wherein said actuating arm arrangement for each cooperating piston and closure sealing tool includes a spindle rotatably mounted in said head block and constituting said pivot axis, an actuating arm connected to said spindle and in contact with said piston, and a further actuating arm connected to said spindle and carrying said tool associated with said piston.
  • each closure sealing tool is a rotatable roller member.
  • a closure sealing machine further including a plurality of axially, reciprocally mounted rotatable shafts on each of which is mounted one of said roller members, and resilient biasing means whereby said shafts are capable of axial movement against said biasing means.
  • a closure sealing machine wherein at least two of said shafts are mounted with their longitudinal axes parallel to said axis of rotation of said head block.
  • a closure sealing machine wherein at least two of said shafts are mounted with their longitudinal axes at a slight angle to said axis of rotation of said head block.
  • a closure sealing machine wherein there are four cylinders arranged at right angles around said axis of rotation of said head block.
  • a closure sealing machine including four closure applying tools associated with said cylinders, said tools being arranged around said axis of rotation of said head block approximately out of phase with respect to their respective cylinders.
  • a closure sealing machine according to claim 1 wherein said shaft and said head block have central bores disposed along the axis of rotation of said head block, and wherein said bores accommodate pressure stem projecting out of said application head.
  • a closure sealing machine comprising respectively a male conical seating surface and a complementary female conical seating surface and a key connection between said surfaces.
  • a closure sealing machine according to claim 1 wherein said series of closure sealing tools comprises at least two groups, said coupling formations having further intercommunicating fluid passageways for introducing pressurized fluid into the cylinders associated with the tools of said two groups through said fluid passageways and said further fluid passageways respectively.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Of Jars (AREA)
  • Closing Of Containers (AREA)
US00280207A 1971-08-27 1972-08-14 Closure sealing machines Expired - Lifetime US3818677A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4042671A GB1369793A (en) 1971-08-27 1971-08-27 Closure sealing machines

Publications (1)

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US3818677A true US3818677A (en) 1974-06-25

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Application Number Title Priority Date Filing Date
US00280207A Expired - Lifetime US3818677A (en) 1971-08-27 1972-08-14 Closure sealing machines

Country Status (21)

Country Link
US (1) US3818677A (de)
JP (1) JPS5016233B2 (de)
AT (1) AT317024B (de)
AU (1) AU461749B2 (de)
BE (1) BE787993A (de)
BR (1) BR7205873D0 (de)
CA (1) CA945528A (de)
CH (1) CH559700A5 (de)
DD (1) DD99539A5 (de)
DE (2) DE7230785U (de)
DK (1) DK140982B (de)
ES (1) ES406056A1 (de)
FI (1) FI57733C (de)
FR (1) FR2150829B1 (de)
GB (1) GB1369793A (de)
IE (1) IE37067B1 (de)
IT (1) IT964242B (de)
NL (1) NL167930C (de)
NO (1) NO136089C (de)
SE (1) SE397668B (de)
ZA (1) ZA725590B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964240A (en) * 1972-02-27 1976-06-22 Societe Anonyme Machines Automatiques Cillotta Bottle closing apparatus
ES2147690A2 (es) * 1997-07-11 2000-09-16 Sommetrade S L Nueva palanca de cierre para maquinas cerradoras de envases.
US20090133364A1 (en) * 2007-11-27 2009-05-28 William Michael Oliver Sealer and Interchangeable Tooling Therefor
CN102871546A (zh) * 2012-09-24 2013-01-16 苏州华爱电子有限公司 饮料瓶电动连接装置及饮料机
US20190084728A1 (en) * 2017-09-18 2019-03-21 Ball Corporation Tamper evidence device for roll-on pilfer proof closures
US11459223B2 (en) * 2016-08-12 2022-10-04 Ball Corporation Methods of capping metallic bottles

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4086747A (en) * 1977-05-05 1978-05-02 Aluminum Company Of America Headset device for a capping machine
GB1588105A (en) * 1978-05-31 1981-04-15 Metal Closures Ltd Method and apparatus for applying closures to containers
GB1588106A (en) * 1978-05-31 1981-04-15 Metal Closures Ltd Method and apparatusfor securing closures to bottles
WO2017002353A1 (ja) * 2015-06-30 2017-01-05 備前化成株式会社 化学的炭素鎖延長反応による長鎖不飽和脂肪酸の合成

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US13851A (en) * 1855-11-27 Improvement in cannon
US1789857A (en) * 1928-12-27 1931-01-20 Walker Gordon Lab Company Inc Bottle-capping machine
US2891366A (en) * 1956-10-12 1959-06-23 Anchor Hocking Glass Corp Hydraulic container sealing means
US3491516A (en) * 1967-10-25 1970-01-27 Pneumatic Scale Corp Closure applying apparatus
US3537231A (en) * 1968-06-12 1970-11-03 Consolidated Packaging Machine Bottle capper
US3660963A (en) * 1970-05-28 1972-05-09 Crown Cork & Seal Co Container closing apparatus and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US13851A (en) * 1855-11-27 Improvement in cannon
US1789857A (en) * 1928-12-27 1931-01-20 Walker Gordon Lab Company Inc Bottle-capping machine
US2891366A (en) * 1956-10-12 1959-06-23 Anchor Hocking Glass Corp Hydraulic container sealing means
US3491516A (en) * 1967-10-25 1970-01-27 Pneumatic Scale Corp Closure applying apparatus
US3537231A (en) * 1968-06-12 1970-11-03 Consolidated Packaging Machine Bottle capper
US3660963A (en) * 1970-05-28 1972-05-09 Crown Cork & Seal Co Container closing apparatus and method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964240A (en) * 1972-02-27 1976-06-22 Societe Anonyme Machines Automatiques Cillotta Bottle closing apparatus
ES2147690A2 (es) * 1997-07-11 2000-09-16 Sommetrade S L Nueva palanca de cierre para maquinas cerradoras de envases.
US20090133364A1 (en) * 2007-11-27 2009-05-28 William Michael Oliver Sealer and Interchangeable Tooling Therefor
US7614202B2 (en) 2007-11-27 2009-11-10 Atlas Vac Machine Co., Llc Sealer and interchangeable tooling therefor
CN102871546A (zh) * 2012-09-24 2013-01-16 苏州华爱电子有限公司 饮料瓶电动连接装置及饮料机
CN102871546B (zh) * 2012-09-24 2016-06-29 苏州华爱电子有限公司 饮料瓶电动连接装置及饮料机
US11459223B2 (en) * 2016-08-12 2022-10-04 Ball Corporation Methods of capping metallic bottles
US20220324689A1 (en) * 2016-08-12 2022-10-13 Ball Corporation Methods of capping metallic bottles
US11970381B2 (en) * 2016-08-12 2024-04-30 Ball Corporation Methods of capping metallic bottles
US20190084728A1 (en) * 2017-09-18 2019-03-21 Ball Corporation Tamper evidence device for roll-on pilfer proof closures

Also Published As

Publication number Publication date
BE787993A (fr) 1973-02-26
ES406056A1 (es) 1975-11-01
JPS5016233B2 (de) 1975-06-11
CA945528A (en) 1974-04-16
DE2240933A1 (de) 1973-03-01
IE37067L (en) 1973-02-27
NL7211475A (de) 1973-03-01
NO136089B (de) 1977-04-12
IT964242B (it) 1974-01-21
DE2240933B2 (de) 1979-01-18
GB1369793A (en) 1974-10-09
DK140982B (da) 1979-12-17
NL167930C (nl) 1982-02-16
FR2150829A1 (de) 1973-04-13
NO136089C (no) 1977-08-03
FI57733C (fi) 1980-10-10
DE7230785U (de) 1972-11-16
DD99539A5 (de) 1973-08-12
FI57733B (fi) 1980-06-30
SE397668B (sv) 1977-11-14
IE37067B1 (en) 1977-04-27
BR7205873D0 (pt) 1973-07-10
DK140982C (de) 1980-06-02
ZA725590B (en) 1974-03-27
AT317024B (de) 1974-08-12
DE2240933C3 (de) 1979-10-04
AU4570372A (en) 1974-02-21
FR2150829B1 (de) 1977-03-18
JPS4832082A (de) 1973-04-27
AU461749B2 (en) 1975-06-05
CH559700A5 (de) 1975-03-14

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