[특허]Container closure assembly with internal neck thread

Beeson & Sons Limited

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Container closure assembly with internal neck thread

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B65D-041/36
미국특허분류(USC)	220/296; 220/300; 215/331; 215/330
출원번호	US-0573862 (2005-08-22)
등록번호	US-8091724 (2012-01-10)
우선권정보	GB-0418662.3 (2004-08-20)
국제출원번호	PCT/GB2005/003270 (2005-08-22)
§371/§102 date	20070626 (20070626)
국제공개번호	WO2006/018660 (2006-02-23)
발명자 / 주소	King, Roger Milner
출원인 / 주소	Beeson & Sons Limited
대리인 / 주소	Salai, Esq., Stephen B.
인용정보	피인용 횟수 : 6 인용 특허 : 11

초록

A container neck and closure assembly, wherein the container neck (10) comprises a first screw thread (14) on an internal surface thereof and the closure (12) comprises a cylindrical plug (32) for insertion into the container neck, said plug having a second screw thread (36, 37) on an outer surface thereof for engagement with the first screw thread to secure and resecure the closure on the neck.

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1. A container neck and closure assembly, wherein the container neck comprises a single piece of material including a substantially smooth outer surface and first screw thread formed in the internal surface of the single piece of material and the closure comprises a cylindrical plug for insertion into the container neck, said plug having a second screw thread on an outer surface thereof for engagement with the first screw thread wherein: the closure can be secured and resecured on the neck by a single smooth rotation through about 360° or less;the first screw thread is formed integrally with the container neck by moulding of thermoplastic material and comprises at least four first thread segments that do not overlap circumferentially around the container neck;the second screw thread comprises a plurality of second thread segments that are longer than said first thread segments and that define a continuous helical thread path along which the first thread segments travel from a fully disengaged to a fully secured position of the closure on the container neck;the first and second threads are multiple-start threads having a number of thread starts equal to the number of first thread segments;wherein the cylindrical plug on the closure and the container neck comprises complementary circumferential sealing surfaces below the threads, whereby the cylindrical plug forms a sealing interference fit with the neck below the threads when the closure is fully secured on the container neck; andwherein the container and closure further comprise complementary locking elements on the internal surface of the container neck and on the external surface of the closure that block or resist unscrewing of the closure from the fully secured position on the container neck until a predetermined minimum opening torque is applied. 2. A container closure assembly according to claim 1, wherein the closure can be secured and resecured on the container neck by a single smooth rotation through about 180° or less. 3. A container closure assembly according to claim 1, wherein the first and second threads are selected from the group consisting of multiple start threads, 4-start threads, and 6-start threads. 4. A container closure assembly according to claim 2, wherein the first and second threads are selected from the group consisting of multiple start threads, 4-start threads, and 6-start threads. 5. A container closure assembly according to claim 1, wherein the first and second threads are substantially continuous helical threads. 6. A container closure assembly according to claim 1, wherein the first thread comprises a plurality of relatively short thread segments and the second thread comprises a plurality of relatively long thread segments. 7. A container neck and closure assembly according to claim 1, further comprising one or more circumferential sealing elements on the closure for forming a seal against the container neck when the closure is secured on the container neck. 8. A container neck and closure assembly according to claim 1, wherein the first thread is formed integrally with the container neck by moulding of a thermoplastic material. 9. A container closure assembly according to claim 1, wherein the complementary locking elements longitudinally overlap the first or the second thread segments when the closure is in the fully engaged position on the container neck. 10. A container closure assembly according to claim 1, further comprising a projecting stop surface on one of the internal surface of the container neck of the external surface of the closure skirt for abutment against a second stop or a thread on the other of the container neck or the closure to block ever-tightening of a closure beyond a predetermined angular sealing position of the closure on the container neck. 11. A container closure assembly according to claim 1, further comprising a projecting stop surface on one of the internal surface of the container neck of the external surface of the closure skirt for abutment against a second stop or a thread on the other of the container neck or the closure to block ever-tightening of a closure beyond a predetermined angular sealing position of the closure on the container neck. 12. A container closure assembly according to claim 1, further comprising mutually engageable elements on the internal surface of the neck and on the external surface of the neck and on the external surface of the closure to block or restrict rotation of the closure in an unscrewing direction beyond an intermediate position when the closure is under axial pressure in a direction emerging from the container neck. 13. A container closure assembly according to claim 1, further comprising mutually engageable elements on the internal surface of the neck and on the external surface of the neck and on the external surface of the closure to block or restrict rotation of the closure in an unscrewing direction beyond an intermediate position when the closure is under axial pressure in a direction emerging from the container neck. 14. A container closure assembly according to claim 13, wherein said first and second screw threads are constructed and arranged to permit axial displacement of said closure relative to said container neck at least when said closure is at said intermediate position, and wherein said engageable elements engage each other when said closure is axially displaced in a direction emerging from said container neck, and wherein said mutually engageable elements are constructed and arranged not to mutually engage each other when said closure is axially displaced in a direction inwardly towards said container neck at said intermediate position. 15. A container closure assembly according to claim 14, wherein said first and second screw threads are constructed and arranged to permit axial displacement of said closure relative to said container neck at least when said closure is at said intermediate position, and wherein said engageable elements engage each other when said closure is axially displaced in a direction emerging from said container neck, and wherein said mutually engageable elements are constructed and arranged not to mutually engage each other when said closure is axially displaced in a direction inwardly towards said container neck at said intermediate position. 16. A container closure assembly according to claim 13, wherein said first and second screw threads each comprise at least one thread segment, and the mutually engageable elements comprise a step or recess formed in one of said first or second screw thread segments to provide a first abutment surface against which a second abutment surface on the other one of said second or first screw segments, respectively, abuts to block or restrict rotation of said closure in an unscrewing direction at said intermediate position when said closure is under axial pressure in a direction emerging from said container neck. 17. A container closure assembly according to claim 14, wherein said first and second screw threads each comprise at least one thread segment, and the mutually engageable elements comprise a step or recess formed in one of said first or second screw thread segments to provide a first abutment surface against which a second abutment surface on the other one of said second or first screw segments, respectively, abuts to block or restrict rotation of said closure in an unscrewing direction at said intermediate position when said closure is under axial pressure in a direction emerging from said container neck. 18. A container closure assembly according to claim 1, wherein the cylindrical plug is hollow and closed at the bottom to define a compartment inside the closure cap, and an opening into the compartment is provided in the base of the closure opposite the plug. 19. A container closure assembly according to claim 7, wherein the cylindrical plug is hollow and closed at the bottom to define a compartment inside the closure cap, and an opening into the compartment is provided in the base of the closure opposite the plug. 20. A container having a container body, and a neck sealed by a container closure assembly according to claim 1. 21. A container having a container body, and a neck sealed by a container closure assembly according to claim 1. 22. A container according to claim 21, wherein the container contains a carbonated beverage, and the container closure assembly seals the container in pressure-tight fashion. 23. A container according to claim 22, wherein the container contains a carbonated beverage, and the container closure assembly seals the container in pressure-tight fashion. 24. A container according to claim 21, wherein the container neck projects from the container body by at least about 1 cm, and wherein the container neck has a substantially smooth outer surface extending for a distance of at least about 1 cm below the lip of the container neck. 25. A container according to claim 22, wherein the container neck projects from the container body by at least about 1 cm, and wherein the container neck has a substantially smooth outer surface extending for a distance of at least about 1 cm below the lip of the container neck. 26. A container according to claim 23, wherein the container neck projects from the container body by at least about 1 cm, and wherein the container neck has a substantially smooth outer surface extending for a distance of at least about 1 cm below the lip of the container neck. 27. A container according to claim 24, wherein the container neck projects from the container body by at least about 1 cm, and wherein the container neck has a substantially smooth outer surface extending for a distance of at least about 1 cm below the lip of the container neck.

이 특허에 인용된 특허 (11)

이 특허를 인용한 특허 피인용횟수: 6

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Container closure assembly with internal neck thread

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Container closure assembly with internal neck thread

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이 특허에 인용된 특허 (11)

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