US20170021978A1 - Back-off resistant closure system - Google Patents
Back-off resistant closure system Download PDFInfo
- Publication number
- US20170021978A1 US20170021978A1 US15/215,142 US201615215142A US2017021978A1 US 20170021978 A1 US20170021978 A1 US 20170021978A1 US 201615215142 A US201615215142 A US 201615215142A US 2017021978 A1 US2017021978 A1 US 2017021978A1
- Authority
- US
- United States
- Prior art keywords
- closure
- container
- neck
- interior surface
- recess
- 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.)
- Abandoned
Links
- 241000283216 Phocidae Species 0.000 claims abstract description 29
- 230000013011 mating Effects 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 239000012611 container material Substances 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Images
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
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
- B65D41/04—Threaded or like caps or cap-like covers secured by rotation
- B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
- B65D41/0414—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a plug, collar, flange, rib or the like contacting the internal surface of a container neck
-
- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
- B65D1/023—Neck construction
- B65D1/0246—Closure retaining means, e.g. beads, screw-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
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
- B65D41/04—Threaded or like caps or cap-like covers secured by rotation
- B65D41/0471—Threaded or like caps or cap-like covers secured by rotation with means for positioning the cap on the container, or for limiting the movement of the cap, or for preventing accidental loosening of the cap
Definitions
- This invention relates to a container closure and container neck structure and more particularly to back-off resistant closure systems.
- Locking closures for use with containers, such as bottles or jars are well known. “Backing-off,” or loosening of non-locking closures, including for example, caps, is due in part to vibration incurred during shipping and handling, the self-lubricating properties of typical plastic container materials, and lubricating properties of stored liquids. Those skilled in the art recognize that backing-off can be a significant problem as it relates to shipping, often resulting in spoilage, spilling, or contamination.
- One known locking closure system design employs outwardly projecting ratchet portions on a neck portion of a container to engage with corresponding interior ratchet formations on a frangible tamper-evident skirt of a cap. Once tightened into place, the ratchet formations are engaged such that the cap is locked into place and cannot loosen or back off of the container without first removing the frangible tamper-evident band from the cap.
- recloseable back-off resistant closure systems see e.g., U.S. Pat. No. 6,047,840, have been used to provide repeatable antiback-off functionality.
- recloseable prior art closures consist of outwardly projecting ratchet formations on the container neck and recessed lugs extending radially inwardly from the cap so that the lugs engage the ratchet formations when the cap is screwed onto the container.
- the lugs provide additional resistance, or friction, to the closure thereby resisting backing off of the closure. While such antiback-off closures were an improvement over the prior art, some leakage could still occur, as sealing structures were not improved.
- oil sample analysis For purposes such as oil sample analysis, a closure's ongoing and repeatable ability to avoid spoilage, spilling, or contamination by remaining tightly sealed is paramount. Oil samples are shipped from the field to laboratories and therefore must not only seal well, but must also be back-off resistant to prevent loosening of the containers during the shipping process. Oil sampling companies have reported leakage rates of around 30 percent for existing closure systems due to shipping alone. Because empty oil sample containers are sent to the field in a closed state to avoid contamination of the containers before filling and are also closed and re-opened often in laboratories, oil sample containers must also be reclosable while maintaining their sealing and anti back-off functionality.
- the present disclosure comprises an improved closure system, including an improved closure and an improved container neck finish.
- the closure system includes a closure and container neck finish forming a neck-interior flange seal, a closure and neck finish forming a neck-interior land seal, and protrusions formed on one of the container neck and the cap's interior and corresponding recesses formed on the other of the container neck and the cap's interior skirt to releasably prevent back-off of the closure from the bottle.
- the closure and container neck are provided with mating threads.
- the threads may be continuous or interrupted.
- an illustrative thread for a blow-molded, high density polyethylene bottle is 6 threads per inch and a minimum of one full turn of thread.
- the closure is provided with a flange or inner skirt which fits inside the container neck adjacent the container land area.
- the closure's flange or inner skirt engages the container neck as the closure is threaded onto the container.
- the flange seal contacts an interior area of the container neck, such that the interior of the neck and the flange seal form a tight seal. This feature prevents the leakage from the container.
- the interior surface of the closure member also includes a flat, land area within the cap.
- the land area within the closure contacts a land area at the top of the neck of the container such that the flat area and the land area form an additional seal.
- Still another feature of the disclosure is a shoulder connection formed beneath the threads by contact of the interior shoulder formed on the closure and the outer surface of the container neck.
- An additional optional shoulder connection is formed by contact of the shoulder formed on the container neck and with the closure skirt.
- the closure also includes a plurality of narrow recesses defined by the cap's interior skirt and extending longitudinally along a portion of the length of the interior skirt.
- At least one outwardly projecting protrusion is formed below the threads on an exterior surface of the container neck.
- the mating recesses of the closure and container neck protrusions are engaged by the downward rotational threading of the closure relative to the neck.
- the recesses and protrusions are brought into longitudinal and rotational alignment and engagement by rotating the closure relative to the neck.
- FIG. 1 illustrates a perspective view of a resealable anti back-off cap, that is substantially leak-proof, in accordance with the present disclosure
- FIG. 2 illustrates a perspective view of a resealable anti back-off container that is substantially leak-proof, in accordance with the present disclosure.
- FIG. 3 illustrates a perspective view of a resealable anti back-off container cross-section that is substantially leak-proof, in accordance with the present disclosure.
- FIG. 4 illustrates a cross-section of a closure system in accordance with the present disclosure, including the cap of FIG. 1 and the container of FIGS. 2 and 3 , in a fully-engaged position.
- a copolymer resin closure has been found to be desirable to prevent breakage of the closure in the event that the container is dropped.
- the cap is manufactured from a high density polyethylene and the container is manufactured from a clarified polypropylene.
- FIGS. 1-4 show an illustrative embodiment of a cap 100 and container neck 200 having features that when coupled, provide a substantially leak-proof, resealable, anti back-off closure system.
- FIG. 1 shows an illustrative embodiment of a cap 100 .
- the cap 100 has a generally flat top disk 110 from the periphery of which depends an upper skirt 140 .
- the lower edge of upper skirt 140 merges with the upper edge of lower skirt 120 .
- the lower skirt 120 has a generally horizontal, planar lower edge 122 .
- Upper skirt 140 and lower skirt 120 have vertical ribs 124 spaced therearound, for example, knurling to aid in gripping the cap 100 .
- the vertical ribs 124 are further defined by lower edges 126 .
- At least one recess 150 is defined by the inside of lower skirt 120 .
- the recess(es) 150 include an recess inner surface 152 , first recess inner edge 154 , and second recess edge 156 , and extend in length to recess end 158 .
- a plurality of recesses 150 may be spaced or separated by a portion of the inside of lower skirt 120 and the plurality of recesses 150 may extend around the periphery of lower skirt 120 .
- An inner flange 112 extends downward from top disk 110 .
- the outer bottom edge 114 of flange 112 may be rounded or formed with a bevel.
- a circular land area 116 on the underside of disk 110 is located between flange 112 and skirt 140 .
- a radius 118 joins circular land area 116 and the upper edge of skirt 140 .
- FIG. 2 and FIG. 3 show an illustrative embodiment of a finished neck 200 .
- Neck 200 has a central neck opening 210 and a first upper neck portion 214 terminating at land area 212 .
- a thread 230 Extending radially outward from the first upper neck portion 214 is a thread 230 which is selected to mate with thread 130 of cap 100 .
- the number of thread leads and linear thread density may be advantageously chosen.
- a second upper neck portion 220 is located below the thread 230 and extends downward to upper shoulder 222 , which extends radially outward from the neck 200 to form a horizontal surface.
- a vertical engagement wall 224 Below upper shoulder 222 is a vertical engagement wall 224 .
- Vertical engagement wall 224 terminates in middle shoulder 226 which extends approximately radially outward and, at its lower end, merges with a transition 240 .
- Outwardly of and below transition 240 is the main body 242 of the container.
- Protrusions 250 Projecting out from vertical engagement wall 224 are protrusions 250 .
- Protrusions 250 may be spaced and dimensioned to match the recesses 150 of cap 100 .
- Protrusions 250 may be further separated by a portion of vertical engagement wall 224 and the plurality of protrusions 250 may extend around the periphery of vertical engagement wall 224 .
- Protrusion(s) 250 may also consist of a single protrusion.
- Each protrusion has a top surface 258 which can be co-planar with the surface of upper shoulder 222 .
- Protrusion outer surface 252 is approximately vertical and terminates at middle shoulder 226 .
- Protrusions 250 are further defined by protrusion first edges 254 and protrusion second edges 256 .
- cap 100 various features of cap 100 are dimensioned to match the features of neck 200 to provide releasable retention of the cap and neck, and sealing. Threads 130 of cap 100 are rotationally mated with thread 230 of neck 200 . Upon sufficient rotation, cap 100 is drawn downward onto neck 200 such that recesses 150 of cap 100 are engaged with protrusions 250 of neck 200 . The engagement of the recesses 150 and protrusions 250 provide resistance to turning (antiback-off) and thus reopening (unscrewing) that requires a greater torque on cap 100 relative to the neck 200 than would be experienced in normal shipping and handling.
- protrusions 250 can be modified to provide the level of resistance to turning that is desired for the application.
- protrusions 250 can be located on the cap 100 and the recesses 150 defined on the neck 200 .
- a flange seal is formed by inner flange 112 of cap 100 and the inner surface 216 of the central opening 210 of neck 200 .
- a land seal is formed by land area 116 of cap 100 and land area 212 of neck 200 .
- An optional shoulder connection can be formed by lower edge 122 of cap 100 in contact with the middle shoulder 226 of neck 200 and can provide an additional seal and/or anti back-off feature.
- Each of these seals and connections is made upon the cap 100 being drawn fully downward onto neck 200 and each can be designed to contribute to the sealing and anti back-off features of the closure system.
- Alternative embodiments of the closure system can include any combination of a subset of the disclosed seals and connections in addition to other closure seals known in the art.
Abstract
A resealable anti back-off closure system that is substantially leak-proof and back-off resistant. A closure and container include mating screw threads. The closure includes recesses formed within the interior surface of the closure adapted to cooperate with protrusions formed on the neck of the container. The protrusions and recesses releasably lock together when the closure is screwed onto the container. The closure and container form at least two seals when coupled, including a flange seal and a land seal.
Description
- This application claims the benefit of U.S. Provisional Patent Application No. 62/194,432, filed Jul. 20, 2015, and titled BACK-OFF RESISTANT CLOSURE SYSTEM, which is incorporated herein by reference.
- This invention relates to a container closure and container neck structure and more particularly to back-off resistant closure systems.
- Locking closures for use with containers, such as bottles or jars are well known. “Backing-off,” or loosening of non-locking closures, including for example, caps, is due in part to vibration incurred during shipping and handling, the self-lubricating properties of typical plastic container materials, and lubricating properties of stored liquids. Those skilled in the art recognize that backing-off can be a significant problem as it relates to shipping, often resulting in spoilage, spilling, or contamination.
- Various closure system designs have been used to solve the backing-off problem. One known locking closure system design employs outwardly projecting ratchet portions on a neck portion of a container to engage with corresponding interior ratchet formations on a frangible tamper-evident skirt of a cap. Once tightened into place, the ratchet formations are engaged such that the cap is locked into place and cannot loosen or back off of the container without first removing the frangible tamper-evident band from the cap. Although such a closure system is appropriate for consumer goods, such as drinking beverages where tamper evidence is a primary concern, a drawback of such a single-use prior art closure is that the closure is no longer back-off resistant once the tamper-evident band containing the locking mechanism has been removed.
- For uses where tamper evidence is of little concern, it can be desirable for a closure to maintain back-off resistance each time the closure is tightened. Thus recloseable back-off resistant closure systems, see e.g., U.S. Pat. No. 6,047,840, have been used to provide repeatable antiback-off functionality. Generally, such recloseable prior art closures consist of outwardly projecting ratchet formations on the container neck and recessed lugs extending radially inwardly from the cap so that the lugs engage the ratchet formations when the cap is screwed onto the container. The lugs provide additional resistance, or friction, to the closure thereby resisting backing off of the closure. While such antiback-off closures were an improvement over the prior art, some leakage could still occur, as sealing structures were not improved.
- For purposes such as oil sample analysis, a closure's ongoing and repeatable ability to avoid spoilage, spilling, or contamination by remaining tightly sealed is paramount. Oil samples are shipped from the field to laboratories and therefore must not only seal well, but must also be back-off resistant to prevent loosening of the containers during the shipping process. Oil sampling companies have reported leakage rates of around 30 percent for existing closure systems due to shipping alone. Because empty oil sample containers are sent to the field in a closed state to avoid contamination of the containers before filling and are also closed and re-opened often in laboratories, oil sample containers must also be reclosable while maintaining their sealing and anti back-off functionality. Notwithstanding the effort to address the tendency of container closures to back-off, the industry continues to search for a cap and neck finish which achieves such an objective, but which also provides a secure seal. Accordingly, it is an object of the present invention to provide a resealable anti back-off closure system that is substantially leak-proof and it will be appreciated that the present disclosure is an improvement over prior art closure systems.
- Other features and advantages of the present disclosure will be apparent from the following detailed description, the accompanying drawings, and the appended claims.
- The present disclosure comprises an improved closure system, including an improved closure and an improved container neck finish. The closure system includes a closure and container neck finish forming a neck-interior flange seal, a closure and neck finish forming a neck-interior land seal, and protrusions formed on one of the container neck and the cap's interior and corresponding recesses formed on the other of the container neck and the cap's interior skirt to releasably prevent back-off of the closure from the bottle.
- The closure and container neck are provided with mating threads. The threads may be continuous or interrupted. In accordance with the present disclosure, an illustrative thread for a blow-molded, high density polyethylene bottle is 6 threads per inch and a minimum of one full turn of thread. However, depending upon the desired application, it may be advantageous to design for higher or lower threads per inch and/or more leads.
- Another feature of the present disclosure is that the closure is provided with a flange or inner skirt which fits inside the container neck adjacent the container land area. The closure's flange or inner skirt engages the container neck as the closure is threaded onto the container. The flange seal contacts an interior area of the container neck, such that the interior of the neck and the flange seal form a tight seal. This feature prevents the leakage from the container.
- The interior surface of the closure member also includes a flat, land area within the cap. The land area within the closure contacts a land area at the top of the neck of the container such that the flat area and the land area form an additional seal.
- Still another feature of the disclosure is a shoulder connection formed beneath the threads by contact of the interior shoulder formed on the closure and the outer surface of the container neck.
- An additional optional shoulder connection is formed by contact of the shoulder formed on the container neck and with the closure skirt.
- The closure also includes a plurality of narrow recesses defined by the cap's interior skirt and extending longitudinally along a portion of the length of the interior skirt.
- Correspondingly, at least one outwardly projecting protrusion is formed below the threads on an exterior surface of the container neck. The mating recesses of the closure and container neck protrusions are engaged by the downward rotational threading of the closure relative to the neck. In other words, the recesses and protrusions are brought into longitudinal and rotational alignment and engagement by rotating the closure relative to the neck.
- The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principals of exemplary embodiments of the disclosure. Moreover, in the figures, like reference numerals designate corresponding parts throughout the different views.
-
FIG. 1 illustrates a perspective view of a resealable anti back-off cap, that is substantially leak-proof, in accordance with the present disclosure; and -
FIG. 2 illustrates a perspective view of a resealable anti back-off container that is substantially leak-proof, in accordance with the present disclosure. -
FIG. 3 illustrates a perspective view of a resealable anti back-off container cross-section that is substantially leak-proof, in accordance with the present disclosure. -
FIG. 4 illustrates a cross-section of a closure system in accordance with the present disclosure, including the cap ofFIG. 1 and the container ofFIGS. 2 and 3 , in a fully-engaged position. - For the purposes of promoting and understanding the principals of the invention, reference will now be made to one or more illustrative embodiments illustrated in the drawings and specific language will be used to describe the same. While the invention will be described in conjunction with the preferred embodiments, it will be understood that they are not intended to limit the invention to those embodiments. On the contrary, the invention is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the invention as defined by the appended claims.
- In a disclosed embodiment, a copolymer resin closure has been found to be desirable to prevent breakage of the closure in the event that the container is dropped. Specifically, the cap is manufactured from a high density polyethylene and the container is manufactured from a clarified polypropylene.
-
FIGS. 1-4 show an illustrative embodiment of acap 100 andcontainer neck 200 having features that when coupled, provide a substantially leak-proof, resealable, anti back-off closure system.FIG. 1 shows an illustrative embodiment of acap 100. Thecap 100 has a generally flattop disk 110 from the periphery of which depends anupper skirt 140. The lower edge ofupper skirt 140 merges with the upper edge oflower skirt 120. Thelower skirt 120 has a generally horizontal, planarlower edge 122.Upper skirt 140 andlower skirt 120 havevertical ribs 124 spaced therearound, for example, knurling to aid in gripping thecap 100. Thevertical ribs 124 are further defined bylower edges 126. - On the interior of
upper skirt 140 is formed athread 130. At least onerecess 150 is defined by the inside oflower skirt 120. The recess(es) 150 include an recessinner surface 152, first recessinner edge 154, andsecond recess edge 156, and extend in length to recessend 158. A plurality ofrecesses 150 may be spaced or separated by a portion of the inside oflower skirt 120 and the plurality ofrecesses 150 may extend around the periphery oflower skirt 120. - An
inner flange 112 extends downward fromtop disk 110. The outerbottom edge 114 offlange 112 may be rounded or formed with a bevel. Acircular land area 116 on the underside ofdisk 110 is located betweenflange 112 andskirt 140. Aradius 118 joinscircular land area 116 and the upper edge ofskirt 140. -
FIG. 2 andFIG. 3 show an illustrative embodiment of afinished neck 200.Neck 200 has acentral neck opening 210 and a firstupper neck portion 214 terminating atland area 212. - Extending radially outward from the first
upper neck portion 214 is athread 230 which is selected to mate withthread 130 ofcap 100. The number of thread leads and linear thread density may be advantageously chosen. A secondupper neck portion 220 is located below thethread 230 and extends downward toupper shoulder 222, which extends radially outward from theneck 200 to form a horizontal surface. - Below
upper shoulder 222 is avertical engagement wall 224.Vertical engagement wall 224 terminates inmiddle shoulder 226 which extends approximately radially outward and, at its lower end, merges with atransition 240. Outwardly of and belowtransition 240 is themain body 242 of the container. - Projecting out from
vertical engagement wall 224 areprotrusions 250.Protrusions 250 may be spaced and dimensioned to match therecesses 150 ofcap 100.Protrusions 250 may be further separated by a portion ofvertical engagement wall 224 and the plurality ofprotrusions 250 may extend around the periphery ofvertical engagement wall 224. Protrusion(s) 250 may also consist of a single protrusion. Each protrusion has atop surface 258 which can be co-planar with the surface ofupper shoulder 222. Protrusionouter surface 252 is approximately vertical and terminates atmiddle shoulder 226.Protrusions 250 are further defined by protrusionfirst edges 254 and protrusion second edges 256. - Referring now to
FIG. 4 , various features ofcap 100 are dimensioned to match the features ofneck 200 to provide releasable retention of the cap and neck, and sealing.Threads 130 ofcap 100 are rotationally mated withthread 230 ofneck 200. Upon sufficient rotation,cap 100 is drawn downward ontoneck 200 such that recesses 150 ofcap 100 are engaged withprotrusions 250 ofneck 200. The engagement of therecesses 150 andprotrusions 250 provide resistance to turning (antiback-off) and thus reopening (unscrewing) that requires a greater torque oncap 100 relative to theneck 200 than would be experienced in normal shipping and handling. The size, depth of engagement, and other features ofrecesses 150 andprotrusions 250 can be modified to provide the level of resistance to turning that is desired for the application. Alternatively,protrusions 250 can be located on thecap 100 and therecesses 150 defined on theneck 200. - A flange seal is formed by
inner flange 112 ofcap 100 and theinner surface 216 of thecentral opening 210 ofneck 200. A land seal is formed byland area 116 ofcap 100 andland area 212 ofneck 200. An optional shoulder connection can be formed bylower edge 122 ofcap 100 in contact with themiddle shoulder 226 ofneck 200 and can provide an additional seal and/or anti back-off feature. Each of these seals and connections is made upon thecap 100 being drawn fully downward ontoneck 200 and each can be designed to contribute to the sealing and anti back-off features of the closure system. Alternative embodiments of the closure system can include any combination of a subset of the disclosed seals and connections in addition to other closure seals known in the art. - It should be understood that the above description is intended for illustrative purposes only, and is not intended to limit the scope of the present disclosure in any way. Thus, those skilled in the art will appreciate that other aspects of the disclosure can be obtained from a study of the drawings, the disclosure and the appended claims.
Claims (20)
1. A closure system assembly for a container comprising:
a closure defining an interior surface defining a first screw thread;
a container defining a finished neck defining a second screw thread, the second screw thread for mating with the first screw thread;
a closure lock comprising at least one recess adapted to cooperate with at least one protrusion, one of the at least one recess and the at least one protrusion formed within the interior surface of the closure, the other one of the at least one recess and the at least one protrusion formed into the neck of the container, whereby the at least one protrusion and at least one recess releasably and recloseably lock together when the closure is screwed fully onto the container;
a flange seal comprising a flange extending from an interior surface of the closure and contacting an interior surface of the container neck such that the interior surface of the neck and the flange form a liquid-tight seal; and
a land seal comprising a first land area defined by an interior surface of the closure and contacting a second land area defined at the top of the neck of the container such that the first land area and the second land area form a liquid-tight seal.
2. The closure system of claim 1 , wherein one of the at least one recess and at least one protrusion formed within the interior surface of the closure extends downward to the bottom edge of the closure.
3. The closure system of claim 1 , wherein at least one protrusion formed into the neck of the container extends radially outward from the neck of the container.
4. The closure system of claim 1 , wherein at least one protrusion formed within the interior surface of the closure extends radially inward from the closure.
5. The closure system of claim 1 , wherein a plurality of recesses are formed within the interior surface of the closure and extend around the entire periphery of the closure.
6. The closure system of claim 1 , wherein a plurality of recesses are formed into the neck of the container and extend around the entire periphery of the container.
7. A closure system assembly for a container comprising:
a closure defining an interior surface defining a first screw thread;
a container defining a finished neck defining a second screw thread, the second screw thread for mating with the first screw thread;
a closure lock comprising at least one recess adapted to cooperate with at least one protrusion, one of the at least one recess and the at least one protrusion formed within the interior surface of the closure, the other one of the at least one recess and the at least on protrusion formed into the neck of the container, whereby the at least one protrusion and at least one recess releasably and recloseably lock together when the closure is screwed fully onto the container; and
a flange seal comprising a flange extending from an interior surface of the closure and contacting an interior surface of the container neck such that the interior surface of the neck and the flange form a liquid-tight seal
8. The closure system of claim 7 , further comprising a land seal comprising a first land area defined by an interior surface of the closure and contacting a second land area defined at the top of the neck of the container such that the first land area and the second land area form a liquid-tight seal.
9. The closure system of claim 7 , wherein one of the at least one recess and at least one protrusion formed within the interior surface of the closure extends downward to the bottom edge of the closure.
10. The closure system of claim 7 , wherein at least one protrusion formed into the neck of the container extends radially outward from the neck of the container.
11. The closure system of claim 7 , wherein at least one protrusion formed within the interior surface of the closure extends radially inward from the closure.
12. The closure system of claim 7 , wherein a plurality of recesses are formed within the interior surface of the closure and extend around the entire periphery of the closure.
13. The closure system of claim 7 , wherein a plurality of recesses are formed into the neck of the container and extend around the entire periphery of the container.
14. A closure system assembly for a container comprising:
a closure defining an interior surface defining a first screw thread;
a container defining a finished neck defining a second screw thread, the second screw thread for mating with the first screw thread;
a closure lock comprising at least one recess adapted to cooperate with at least one protrusion, one of the at least one recess and the at least one protrusion formed within the interior surface of the closure, the other one of the at least one recess and the at least on protrusion formed into the neck of the container, whereby the at least one protrusion and at least one recess releasably and recloseably lock together when the closure is screwed fully onto the container; and
a land seal comprising a first land area defined by an interior surface of the closure and contacting a second land area defined at the top of the neck of the container such that the first land area and the second land area form a liquid-tight seal.
15. The closure system of claim 14 , further comprising a flange seal comprising a flange extending from an interior surface of the closure and contacting an interior surface of the container neck such that the interior surface of the neck and the flange form a liquid-tight seal.
16. The closure system of claim 14 , wherein one of the at least one recess and at least one protrusion formed within the interior surface of the closure extends downward to the bottom edge of the closure.
17. The closure system of claim 14 , wherein at least one protrusion formed into the neck of the container extends radially outward from the neck of the container.
18. The closure system of claim 14 , wherein at least one protrusion formed within the interior surface of the closure extends radially inward from the closure.
19. The closure system of claim 14 , wherein a plurality of recesses are formed within the interior surface of the closure and extend around the entire periphery of the closure.
20. The closure system of claim 14 , wherein a plurality of recesses are formed into the neck of the container and extend around the entire periphery of the container.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/215,142 US20170021978A1 (en) | 2015-07-20 | 2016-07-20 | Back-off resistant closure system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201562194432P | 2015-07-20 | 2015-07-20 | |
US15/215,142 US20170021978A1 (en) | 2015-07-20 | 2016-07-20 | Back-off resistant closure system |
Publications (1)
Publication Number | Publication Date |
---|---|
US20170021978A1 true US20170021978A1 (en) | 2017-01-26 |
Family
ID=57836806
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/215,142 Abandoned US20170021978A1 (en) | 2015-07-20 | 2016-07-20 | Back-off resistant closure system |
Country Status (1)
Country | Link |
---|---|
US (1) | US20170021978A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD830175S1 (en) * | 2015-06-01 | 2018-10-09 | Obrist Closures Switzerland Gmbh | Container neck |
EP3444200A1 (en) * | 2017-08-14 | 2019-02-20 | WEPA Apothekenbedarf GmbH & Co.KG | Lid for a mixing and dosing container |
US20190062007A1 (en) * | 2017-08-31 | 2019-02-28 | Silgan White Cap LLC | Closure With Angled Plug Seal |
USD869275S1 (en) * | 2018-04-16 | 2019-12-10 | Alphagem Bio Inc. | Dual seal tube cap |
JP2020006977A (en) * | 2018-07-04 | 2020-01-16 | 藤森工業株式会社 | Spout plug of liquid storage container |
USD884474S1 (en) * | 2018-11-29 | 2020-05-19 | Codiplas | Cap for a bottle |
USD885904S1 (en) | 2018-05-01 | 2020-06-02 | Silgan White Cap LLC | Venting closure |
US20220363446A1 (en) * | 2021-05-12 | 2022-11-17 | Paul Bradley Forrest | Releasable container cap |
US11753213B2 (en) | 2020-06-23 | 2023-09-12 | Silgan White Cap LLC | Sealing structures for closure |
US11772852B2 (en) | 2020-12-22 | 2023-10-03 | Silgan White Cap LLC | Venting closure liner |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4461394A (en) * | 1979-10-26 | 1984-07-24 | Pano Cap (Canada) Limited | Closure cap and container |
US4913299A (en) * | 1989-04-03 | 1990-04-03 | Phoenix Closures, Inc. | Back-off resistant closure for a container |
US5213225A (en) * | 1990-05-30 | 1993-05-25 | Beeson And Sons Limited | Container and closure |
US5271512A (en) * | 1992-11-06 | 1993-12-21 | Phoenix Closures, Inc. | Tamper-evident closure with reinforced band |
US5685445A (en) * | 1995-06-14 | 1997-11-11 | Calmar Inc. | Anti-backoff removable closure for connecting a manually actuated liquid dispenser to a container |
US6047840A (en) * | 1998-03-02 | 2000-04-11 | Phoenix Closures, Inc. | Back-off resistant closure |
US20060255003A1 (en) * | 2005-05-12 | 2006-11-16 | Owen-Illinois Closure Inc. | Linerless closure and package |
US20080110850A1 (en) * | 2006-11-14 | 2008-05-15 | Andrew Thomas Tilton | Audible closing feature for a threaded container and lid |
US20140003391A1 (en) * | 2011-02-15 | 2014-01-02 | Nokia Siemens Networks Oy | Method and Apparatus for in Sequence Delivery of Downlink Local IP Access (LIPA) Packets |
US20140339191A1 (en) * | 2013-01-12 | 2014-11-20 | Parter Medical Products, Inc. | Specimen Collection Container System |
-
2016
- 2016-07-20 US US15/215,142 patent/US20170021978A1/en not_active Abandoned
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4461394A (en) * | 1979-10-26 | 1984-07-24 | Pano Cap (Canada) Limited | Closure cap and container |
US4913299A (en) * | 1989-04-03 | 1990-04-03 | Phoenix Closures, Inc. | Back-off resistant closure for a container |
US5213225A (en) * | 1990-05-30 | 1993-05-25 | Beeson And Sons Limited | Container and closure |
US5271512A (en) * | 1992-11-06 | 1993-12-21 | Phoenix Closures, Inc. | Tamper-evident closure with reinforced band |
US5685445A (en) * | 1995-06-14 | 1997-11-11 | Calmar Inc. | Anti-backoff removable closure for connecting a manually actuated liquid dispenser to a container |
US6047840A (en) * | 1998-03-02 | 2000-04-11 | Phoenix Closures, Inc. | Back-off resistant closure |
US20060255003A1 (en) * | 2005-05-12 | 2006-11-16 | Owen-Illinois Closure Inc. | Linerless closure and package |
US20080110850A1 (en) * | 2006-11-14 | 2008-05-15 | Andrew Thomas Tilton | Audible closing feature for a threaded container and lid |
US20140003391A1 (en) * | 2011-02-15 | 2014-01-02 | Nokia Siemens Networks Oy | Method and Apparatus for in Sequence Delivery of Downlink Local IP Access (LIPA) Packets |
US20140339191A1 (en) * | 2013-01-12 | 2014-11-20 | Parter Medical Products, Inc. | Specimen Collection Container System |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD830175S1 (en) * | 2015-06-01 | 2018-10-09 | Obrist Closures Switzerland Gmbh | Container neck |
EP3444200A1 (en) * | 2017-08-14 | 2019-02-20 | WEPA Apothekenbedarf GmbH & Co.KG | Lid for a mixing and dosing container |
US20190062007A1 (en) * | 2017-08-31 | 2019-02-28 | Silgan White Cap LLC | Closure With Angled Plug Seal |
USD869275S1 (en) * | 2018-04-16 | 2019-12-10 | Alphagem Bio Inc. | Dual seal tube cap |
USD885904S1 (en) | 2018-05-01 | 2020-06-02 | Silgan White Cap LLC | Venting closure |
JP2020006977A (en) * | 2018-07-04 | 2020-01-16 | 藤森工業株式会社 | Spout plug of liquid storage container |
JP7213029B2 (en) | 2018-07-04 | 2023-01-26 | 藤森工業株式会社 | Spout plug for liquid container |
USD884474S1 (en) * | 2018-11-29 | 2020-05-19 | Codiplas | Cap for a bottle |
US11753213B2 (en) | 2020-06-23 | 2023-09-12 | Silgan White Cap LLC | Sealing structures for closure |
US11772852B2 (en) | 2020-12-22 | 2023-10-03 | Silgan White Cap LLC | Venting closure liner |
US20220363446A1 (en) * | 2021-05-12 | 2022-11-17 | Paul Bradley Forrest | Releasable container cap |
US11542067B2 (en) * | 2021-05-12 | 2023-01-03 | Paul Bradley Forrest | Releasable container cap |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20170021978A1 (en) | Back-off resistant closure system | |
RU2388672C2 (en) | Drinks container | |
CA2661297C (en) | Container closure with internal threading system | |
RU2639099C2 (en) | Cover with installation guide | |
US20080257849A1 (en) | Container with Securement for a Cap | |
US5954215A (en) | Leak-proof container | |
US20060186078A1 (en) | Screw on dispensing closure with structure for preventing removal | |
US20070034590A1 (en) | Bottle with retained ring finish feature | |
US10633151B2 (en) | Child resistant dropper closure | |
KR20070086754A (en) | Closure cap | |
US9771190B2 (en) | Child-resistant closure | |
US7413097B1 (en) | Tamper-evident closure and method of making same | |
PH12015501218B1 (en) | Tamper evident closure | |
US20120273452A1 (en) | Combined lip and shoulder seal for threaded cap | |
JP2021113092A (en) | Synthetic resin cap and cap unit | |
GB2151591A (en) | Reusable screw-on bottle cap for gastight seal | |
US20150239621A1 (en) | Bottle closure | |
US20210284404A1 (en) | A cap for a food package | |
US8408409B1 (en) | Closure with unitarily-molded tamper-evident feature | |
US20130068799A1 (en) | Retractable spout assemblies for containers, and containers having such assemblies mounted therein | |
US20110100947A1 (en) | Anti-Backoff Closure | |
GB2527931A (en) | Closure with hinged lid | |
US20230249882A1 (en) | Bottle cap with a flip lid | |
US11780652B1 (en) | Tapered closure and closure system | |
AU2021107287A4 (en) | Improved Bottle Closure |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: TENNESSEE BOTTLE CO., INC., TENNESSEE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KEENER, DAVID A;REEL/FRAME:039281/0391 Effective date: 20160725 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |