CN1275955A - Spill-reduction cap for fluid container - Google Patents

Abstract

A cap for a container has a central conical well in the top of the cap with a scoreline. When a bottle closed by the cap is lowered into a dispenser, a probe of the dispenser enters into the well and causes it to split along the scoreline. When the bottle is raised, the well substantially returns to initial condition, inhibigting spillage of any liquid remaining in the bottle.

Description

The spill-reduction cap of fluid container

The cross-reference of related application

The application's's " lid of threaded neck container " by name that to be Brian M.Adams and Daniel Luch submit to May 8 nineteen ninety-five 08/436, do not authorize the part continuation application of U.S. Patent application for No. 936, back one application is 08/016 of submission on February 10th, 1993, the part continuation application of No. 579 applications, and back one application is the part continuation application of present 07/772, No. 949 application having abandoned again.Background of invention

1. invention field

The present invention relates to a kind of novel, improved fluid container lid, it is formed with a conical depression, and this depression splits by a distributing box probe puncture time, and closes again basically with probe separation the time.More particularly, the present invention relates to a kind of snap on system lid that is used to have the bottleneck of crown surface layer, this crown surface layer can be covered with also can not be covered with screw thread, and whether this lid can demonstrate container and once be torn open by private, and has the leakage of subtracting characteristics.

2. the description of relevant retaining art

In US Patent 3,392,860 and 3,979,002 and some other document in the art in the plastics laminated type bottle cap of the container neck that is used to have crown surface layer has been shown, this crown surface layer is covered with the screw thread surface layer.The invention provides a kind of lid, it engages with the crown surface layer and the screw thread surface layer of container neck simultaneously.And, be provided with device and lid can't be taken off from neck under the situation of a lid part of not tearing, thereby can being demonstrated, whether once torn open on lid by private.

The laminated type lid has been cessionary's public use of the application.Yet, also do not have use to prevent the obstruction structure that twists the lid off at present in the present technique field.

Have by the lid of the depression of distributing box probe puncture equally also known.

It is also known in the present technique field to use foam discs to seal the antelabium of neck on the downside of vinyl cover top.

Brief summary of the invention

Disclosed the lid of two kinds of base models.A kind of is to be used for encapsulated type for having a coronal and a constraint diameter parts is arranged above this coronal and the bottleneck of a screw thread is arranged on every side at this constraint diameter parts below antelabium.Such bottle is in commercial existing use.The common rectangular cross-sectional plane in the bottom of this bottle can be stacked and placed on self many bottles like this to need not together to use and take off plate.This bottle be at present with a kind of have with bottle on the metal threaded lid of screw thread of threads engaged come osed top.Whether torn open for system can be demonstrated, adopted the box-like top cover of pressing of a kind of plastics by private.Yet the stacked meeting of bottle increases the fluid pressure that acts on the bottle of bottom, and this situation also can increase the weight of because of the hydraulic hammer that truck transport caused.So just, caused leakage.

Be used for metal threaded lid and get rusty easily, thereby use it more or less improper.

Another exploitation that is put to use of water bottle aspect is a kind of lid that is retained on the bottle, and it has sealing arrangement, leakage of bottle when preventing to unload when bottle being installed in the water dispenser and with it.Aforesaid crown cap and plastic roof also are not suitable for this new exploitation.

In stacked bottle installation situation, use such as US Patent 3,392,860 and 3,979, the lid shown in 002 and so on can not be satisfactory, because in transportation, " hydraulic hammer " can upwards press lid on bottleneck.If use a foam spacer below cap top, then this liner is easy to upwards be pressed and separate with bottleneck with lid.

In this form of the present invention, use a kind of laminated type lid of plastics, it has a top, a ring-shaped foam pad is installed below the top.The skirt section of lid has tapped about beam diameter top.Below negative thread, form vertical " block piece ",, can prevent that just lid from backing out from bottleneck thread as long as lid is kept perfectly.Below constraint top, the skirt section expands outwardly and has an internal latch and lock D edge, and this sealed edge hasp also is matched with the downside of the crown surface layer of neck.Skirt end extend downwards and with the outside frictional engagement of neck.Block piece can cooperate with the end of neck thread, and these ends diminish at width and height of screw thread direction, thereby as wedge surface or inclined-plane.Skirt end is kept perfectly if attempt to twist the lid off, and the then outside bow of block piece meeting, thereby the screw thread of lid breaks away from the screw thread of neck and cooperates.Therefore, the repeated rotation lid can not backed out lid from neck.

There is vertical tear line to extend up to threaded region from the root edge of lid, and provides one and tear sheet, pull this and tear sheet and lid can be torn along tear line.In case lid is torn, just can manifest the sign of being torn open by private.And when the tear-off lid period of the day from 11 p.m. to 1 a.m, skirt end just can not stop the motion up of lid, thereby just can back out lid or only be to mention from neck.

In the process that lid is installed, tear sheet one directed device can be provided, it can make the lid screw thread align with respect to neck thread, thereby when axially court is depressed on the neck with lid, the lid screw thread expands outwardly earlier and crosses neck thread, shrink then and cooperate, thereby not necessarily need lid is screwed on the neck with neck thread.Simultaneously, the lower bond in skirt section on the coronal of lid, sealed edge be engaged in the crown edge of neck below.Block piece is provided with adjacent to the neck thread end, thereby turning of lid can make block piece stride along the inclined-plane to be raised on the thread head.

The lid of second fundamental form is a US Patent 5,370, a kind of improvement of 270, and this patent is quoted at this for reference.

A key character of these two kinds of lids is, the leakage when having eliminated in bottle being installed on a traditional water distributing box, and significantly reduced in the leakage that bottle may be residued in the water the bottle when water dispenser takes off.Therefore, the center of cap top is formed with a conical depression, and this depression has a rounded bottom.Be preferably in and form a tear line on the inner face of lid, it is made of three continuous parts substantially, promptly the first of extending downwards from the top, extend through the second portion of depression rounded bottom and extend up to the third part of cap top from second portion, all these three parts are positioned at same diametral plane.

The water dispenser of common form has a hollow probe with holes that extends straight up, thereby when the bottle that lid will be housed is put into distributing box downwards, this probe engages and makes depression to split along tear line with depression, thereby allows water to flow into probe from bottle, and then flows into distributing box.Be formed with a short rib perpendicular to tear line.The most advanced and sophisticated rib of contact earlier of probe causes depression to tear at the tear line place.When the user wanted to take off bottle, probe was extracted out from depression and is made depression to small part close, thereby has reduced in the amount that bottle may be flowed out the water of bottle when distributing box takes off and recover the upright position.

The accompanying drawing summary

Accompanying drawing as this specification sheets part shows some embodiments of the present invention, and these accompanying drawings are used for illustrating principle of the present invention with describing:

Fig. 1 is the lateral plan that can use a bottleneck of a kind of lid of the present invention, and this bottleneck is by partial cut-out.

Fig. 2 is the upward view that is used for a kind of lid of Fig. 1 bottleneck.

Fig. 3 is the vertical cutaway view of cutting open along the 3-3 line of Fig. 2 substantially.

Fig. 4 is the vertical cutaway view that presentation graphs 2 lids are installed in state on Fig. 1 bottleneck.

Fig. 5 is the vertical cross-sectional schematic that water dispenser probe of expression extends through lid depression state.

Fig. 6 is and similar, a kind of cutaway view of lid through the transformation of the way of Fig. 3.

Preferred embodiment is described in detail

Come reference preferred embodiment of the present invention in detail below, the example is shown in the drawings.Though the present invention will be described in conjunction with preferred embodiment, be appreciated that the present invention is not limited to these embodiment.On the contrary, the present invention can comprise various variations, remodeling and the equivalent form of value, and they are included within the spirit and scope of the present invention that appended claims limits.

The lid of a kind of form of the present invention is to be used on the water bottle, the roughly rectangular cross-sectional plane of the body of this water bottle (not shown), thereby the bottle of many horizontal positioned self can be stacked and placed on together.The bottleneck of this bottle has an antelabium 12, is extended with the vertical extendible portion 13 of a constraint diameter circle tubular downwards from this antelabium.Be added with on the extendible portion 13 one the circle outside thread 14, its around the width of cloth usually slightly above 360 °.As shown in Figure 1, the width and the thickness of the end 15 of screw thread 14 diminish gradually, thereby play the effect on wedge surface or inclined-plane, as following will illustrate.One outer rim or the coronal 16 that enlarges vertically being arranged below the extendible portion 13, a recess 17 is arranged below this coronal 16, is a roughly rounded part 18 below the recess 17.

In the form of the present invention shown in Fig. 2-5, lid 21 has the top 22 and vertical skirt shape extension 23 that 22 peripheries extend from the top of a circle.Formation one is slightly less than 360 ° negative thread 24 on the inside of vertical extension 23.Be formed with vertical block piece 26 on the inside face of extension 23, they extend downwards from screw thread 24.These block pieces 26 separate each other along angle direction along screw thread 24, and extend to the height of screw thread 24 lower ends.As described below, as long as lid is kept perfectly, the existence of block piece 26 can prevent that just lid is removed.

Below vertical extension 23, lid 21 is one second vertical extension 28 below this extendible portion 27 along a diagonally extending part 27 downwards and expand outwardly.One internal latch and lock D edge 31 is arranged on the inside of extension 28, and it can be matched with below the coronal 16 of bottleneck 11.Below sealed edge 31, skirt section 33 is extended downwards and is engaged with the surface 18 of bottleneck 11 below recess 17.

Be extended with below the root edge 34 in skirt section 33 and tear sheet 38.From root edge 34 upwardly extending sides of tearing sheet 38 are outside tear lines 36, and the outside that it extended upward lid 21 is 22 height up to the top.The opposite side that tears sheet 38 is second tear line 37, and it extends up to the height of the root edge of diagonally extending portion 27 from root edge 34.Be extended with a fracture 32 of sealed edge 31 between the tear line 37 and 38.

Lid 21 additional features comprise that one is positioned at the inner edge 71 at root edge 34 places, and as shown in Figure 4, it engages with bottleneck 11 and prevents that dust from entering below the skirt section 33.Inner edge 71 is corresponding to outside tear line 36 and 37 and form fracture 72.

Be the upper end of firmization lid, the rib 74 that is positioned at vertical sagittal plane is 22 root edges that extend to diagonally extending portion 27 from the top.

One ringwise foam discs 39 is housed on the bottom surface at top 22.For improving the joint of disk 39, be adjacent to be formed with a circular inner edge 41 with vertical extension 23 on the bottom surface at top 22.

When being installed on lid 21 on the bottleneck 11, will tear sheet 38 with respect to screw thread 14 orientations, because the rectangular cross section of bottle body, screw thread 14 can be directed at an easy rate.When rotary axis of earth was not on shifting bottleneck 11 down onto with lid 21, sealed edge 31 slipped over coronal 16.Screw thread 24 expansion and slip over screw thread 14.Because lid 21 is with respect to bottleneck 11 orientations, thereby screw thread 24 and 14 can closely cooperate mutually, need not lid is screwed on the bottleneck.Foam discs 39 is sealed on the antelabium 12 and against inner edge 41.No matter the water hammer in transportation is much, foam discs 39, screw thread 14 and 24 and the cooperation of sealed edge 31 and coronal 16 make the lid water-stop.And, because as long as lid is kept perfectly, block piece 26 can prevent that just lid from being backed out, thereby it can also show whether torn open by private.

If someone attempts to back out lid, block piece 26 is cross on the inclined-plane 15.Lid is expanded outwardly and is made screw thread 14 and 24 disconnected from each other, thereby repeatedly rotates lid and can not cause it to move up with respect to bottleneck 11.

For unloading lid, can catch and tear sheet 38 and upwards draw, lid is torn along tear line 36 and 37.Because unclamp the bottom of lid, the customer can remove the top of lid, thereby takes the contained content of container.

Top 22 is formed with the conical depression 46 at a center, and this depression has a very short cylindrical shape extension at the top, and this extension pools conical side wall 47 again, this sidewall and then pool the bottom 48 of a circle again.The height of bottom 48 approximates the height of sealed edge 31.Depression 46 is formed with an inner tear line, bottom this tear line extends through from first extensions 53 and that extend downwards adjacent to circular cone sidewall 47 by one 48 second extension 53 converge and then with one extend upward portion 54 and converge and constitute. Extension 52,53 and 54 is positioned at same diametral plane.There is a rib 56 perpendicular to tear line 51 planes 53 outside in the bottom.

Neck 11 is provided with the container upside down of lid 21 and it is installed in the distributing box by vertically moving down.This distributing box has a hollow probe 61 with holes that extends straight up.Along with putting down of bottle, probe 61 tip 62 is run into rib 56, is bottom 48 then, depression 46 split, until the position that arrives Fig. 5 along inner tear line 51.Water enters probe 61 on demand and flows into distributing box.

When contained liquid exhausts substantially in the bottle, bottle is pulled down by carrying straight up.The two halves of the depression 46 shown in Fig. 5 are incorporated into together because of the elasticity of the plastic material that molded closure is used.Depression 46 does not return to its original state, but has prevented leakage basically, thereby can avoid water to leak on dispenser exterior and/or the floor.When container was returned bottling plant, the staff can catch and tear sheet 38, and lid is torn along tear line 36 and 37, thus detachable lid 21 down.

Referring to Fig. 6, depression of the present invention can be installed in a kind of different cap structure, such as US Patent 5,370, and the structure shown in 270.Lid 76 is matched with a container neck (not shown).Lid 76 has the top 77 of an annular, and depression 46a is positioned at its center.The structure of depression 46a and fwd remodeling example are similar, represent corresponding member with attached same numeral with alphabetical a.

Lid 76 has a fillet 81 that is positioned at 77 outsides, top, is a vertical skirt section 82 below the fillet 81.Be matched with neck edge or coronal (not shown) and fillet 81 is being provided with a tightening hoop 85 towards the position that the neck edge draws on the inboard in skirt section 82.Best, an inner sealing edge 86 is arranged on the inboard of fillet 81 walls, the sealing edge closely engages with sealed against leakage with container lip.Fracture 84 radially separates each other and is inwardly prominent, is positioned at the outside of container neck concavity with the wall that keeps skirt section 82, and helps lid 76 is pressed on the neck.

For the bottom of unclamping skirt section 82 lid 76 can be unloaded from neck, have and tear sheet 89 82 root edge 88 extends downwards from the skirt section, this tears sheet and is formed with the prominent bar 91 of horizontal finger grip, so that sheet is torn in tearing.Is a tear line 92 from root edge 88 adjacent to what tear sheet 89 K/UPs, and it and a horizontal tear line 93 that is close to below the tightening hoop 85 are converged.Upwards draw by tearing sheet 89, tear along tear line 92 in the skirt section, and then tear enough parts along tear line 93, thereby unclamp the clamping of 82 bottoms, skirt section to neck.As long as skirt section 82 is kept perfectly, in fact just can not pull down lid 76, so lid can show whether torn open by private on neck.In case the bottom in skirt section is released, the top of lid just can be unloaded, and can be used as an osed top lid again.

Be appreciated that in the preferable enforcement of the present invention, do not unload before on the container of lid 76 in being installed on distributing box.Yet often the customer may wish to use this container in a different types of assignment.And, after container is returned bottling plant, need bottle is carried out disinfection and can before remove lid 76.Therefore, tear sheet 89, tear line 92 and 93 just can be used for this purpose.Intersection adjacent to root edge and tear line 92 bottoms is formed with a rib or interior thickened section 94, tears accidentally along any other the line beyond tear line 92 and 93 in order to prevent the skirt section.Rib 94 helps to be defined in suitable tear line with tearing action.

When be used for above-mentioned such, when the distributing box of a probe is arranged, the lid of Fig. 6 is inverted on being contained in container neck the time.The same with in the previous embodiment, most advanced and sophisticated 62 puncture makes depression 46a break along inner tear line 51a.When bottle is extracted from distributing box, also with previous embodiment in the same, two and half ones of depression 46a are incorporated into together and anti-sealing spills.

More than the description of the specific embodiment of the invention is provided for example and purpose of description.They are not to be to summarize nothing left, or the present invention is limited to the concrete form that is disclosed, and obviously, also many remodeling and variation can be arranged according to above announcement.For illustrating the most clearly that principle of the present invention and practical application thereof select and described the foregoing description, so that the various variations of the concrete application that those skilled in the art can be wanted to be suitable for utilize the present invention and each embodiment well.Scope of the present invention should be limited by appended claims and suitable content thereof.

Claims (25)

1. lid that uses with a container neck, this container has the external device (ED) that detachably engages with described lid, and described lid shape is made and can be matched with on the described neck, and comprises:

One top and one is extended downwards from described bottom and is matched with the skirt section of described neck outside; Be positioned on the described skirt section in order to cooperate the interior arrangement that described lid is remained on the described neck with described external device (ED), described top is formed with a center depression, this depression has a sidewall and a bottom, one and extends and pass the tear line of described bottom along described sidewall, thereby a probe that is pressed into described depression makes described depression split and make described probe can enter described neck along described tear line.

2. lid as claimed in claim 1 is characterized in that, it is conical that described sidewall is.

3. lid as claimed in claim 2 is characterized in that described bottom is rounded.

4. lid as claimed in claim 3, it is characterized in that, described tear line comprises that first extension, along described sidewall passes second extension and the 3rd extension along described sidewall of described bottom, and described all extension end-to-ends also are positioned at one with respect to the described depression common plane on diametric(al) substantially.

5. lid as claimed in claim 4 is characterized in that, it comprises that further one extends the short exterior rib of leaving described tear line on described bottom, thereby described probe contacts described rib earlier when being pressed into described depression and described depression is split.

6. lid as claimed in claim 1 is characterized in that it is made by elastomeric material, thereby when described probe is extracted out from described depression, and described depression returns to initial condition substantially and prevents the leakage of described container neck.

7. lid as claimed in claim 1 is characterized in that, described external device (ED) comprises one first screw thread, and described interior arrangement comprises one second screw thread.

8. lid as claimed in claim 7, it is characterized in that, described neck has an antelabium, and is positioned at the cylindrical shape part and that is formed with described outside first screw thread below the described antelabium and is positioned at crown edge below the described cylindrical shape part, described first screw thread has an end that forms the inclined-plane that thickness reduces

Described lid comprises: the skirt section that extend downwards from described top at a top and, described skirt section has extension on the constraint diameter circle tubular, should go up extension and be formed with described inner second screw thread, this second screw thread form and position make can with described first screw thread fit; One be positioned at the described enlarged extension and of going up below the extension, being used for engaging with described crown edge be used for described crown edge under the internal latch and lock D edge of side engagement; And at least one block piece that extends out from described second screw thread, described at least one block piece thereby rotates described lid with respect to described neck and described cap skirt expanded outwardly and described second screw thread and described first screw thread are disengaged along unclamping direction when described lid is installed on the described neck and described inclined-plane horizontal alignment.

9. lid as claimed in claim 1 is characterized in that, it further comprise one be positioned on the downside of described top, in order to the pad of described sealing of lid in described antelabium.

10. lid as claimed in claim 9 is characterized in that described pad is made by foamed plastic.

11. lid as claimed in claim 8 is characterized in that, it further comprises a plurality of downward extension second block pieces that separate each other and separate with previous described block piece and extend from described screw thread along angle direction down.

12. lid as claimed in claim 1, it is characterized in that, described skirt section extends to a root edge below described enlarged extension, one tears sheet extends below the described root edge, one in described skirt section adjacent to the described tear line that tears sheet and form from described root edge extend up to described on extension.

13. lid as claimed in claim 12, it is characterized in that, described tear line is basic vertically to be provided with, described lid further comprise one be basically parallel to previous described tear line, be arranged on described tear on the sheet side relative with previous described tear line, from described root edge extend up to described on second tear line of extension.

14. lid as claimed in claim 12 is characterized in that, it further comprises a plurality of guide rib that separate each other along angle direction of extending from described internal latch and lock D edge downwards, and the vertical section of described guide rib is triangular in shape.

15. lid as claimed in claim 1, it is characterized in that, described lid is made by elastoplast, thus with described lid axially towards being depressed on the described neck and described lid and described neck when not relatively rotating, described second screw thread expansion and slip over described first screw thread.

16. lid as claimed in claim 15, that use with a container with first orienting device, it is characterized in that, described lid further comprises second orienting device that can cooperate with described first orienting device, thereby when described lid was depressed on the described neck by axial court, described first screw thread and described second screw thread were bonded with each other.

17. in the combination of a container neck and a lid as claimed in claim 1,

Described neck has an antelabium, and is positioned at the cylindrical shape part and that is formed with described outside first screw thread below the described antelabium and is positioned at crown edge below the described cylindrical shape part, and described first screw thread has an end that forms the inclined-plane,

Described lid has: at least one is with respect to one in described screw thread block piece that extends into substantially straight down with described inclined-plane horizontal alignment, described skirt section has flexibility, thereby unclamps direction in the situation lower edge of described lid holding position and rotate described lid with respect to described neck and can make described lid expand and make between the described screw thread outwardly to be disengaged from each other; And the device that described lid is unloaded from described neck in order to the part in described skirt section is torn.

18. combination as claimed in claim 17 is characterized in that, described at least one block piece is positioned on the described lid, and extends to the roughly height at 360 ° of angles of described second screw thread under roughly 0 ° of angle of described second screw thread.

19. combination as claimed in claim 17 is characterized in that, it is conical that described sidewall is.

20. combination as claimed in claim 19 is characterized in that, described bottom is rounded.

21. combination as claimed in claim 20, it is characterized in that, described tear line comprises that first extension, along described sidewall passes second extension and the 3rd extension along described sidewall of described bottom, and described all extension forms one and is in one with respect to the described depression continuous substantially line in the plane on diametric(al) substantially.

22. combination as claimed in claim 21 is characterized in that, it comprises that further one extends the short exterior rib of leaving described second extension on described bottom.

23. combination as claimed in claim 17 is characterized in that, described lid is made by elastomeric material, thereby when described probe was extracted out from described depression, described depression returned to initial condition substantially.

24. in the combination of a container neck and a lid as claimed in claim 1, described external device (ED) comprises a crown edge, and described interior arrangement comprises that one is provided with prevents the sealed edge that described lid is pulled down from described neck in order to be engaged in below the described crown edge under the situation that described lid is kept perfectly.

25. combination as claimed in claim 24 is characterized in that, it further comprises and is used for containing of described skirt section prevented that described lid from pulling down the device that the part of the described sealed edge of usefulness is removed from described neck.

Images