Method for producing a container intended to contain a substance to be dispensed by an airless pump, and a container produced by the method
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65B-003/18
B65D-001/02
B29C-063/26
B65D-083/00
출원번호
US-0951224
(2013-07-25)
등록번호
US-9290280
(2016-03-22)
우선권정보
IT-MI2012A1346 (2012-07-31)
발명자
/ 주소
Moretti, Matteo
출원인 / 주소
LUMSON S.P.A.
대리인 / 주소
Vorys, Sater, Seymour and Pease LLP
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
A method for producing a container intended to contain a substance to be dispensed by an airless pump, having an external body inside which a bag is provided formed of thermoplastic material, the bag presenting, at least at a connection surface between its neck and its lateral surface, controlled de
A method for producing a container intended to contain a substance to be dispensed by an airless pump, having an external body inside which a bag is provided formed of thermoplastic material, the bag presenting, at least at a connection surface between its neck and its lateral surface, controlled deformation zones arranged to guide the bag deformation in accordance with preferential directions. The invention also relates to a container formed by the described method and a bag with the aforedescribed characteristics.
대표청구항▼
1. A container for containing a substance to be dispensed by an airless pump, comprising an external rigid body inside which a bag is provided formed of thermoplastic material having substantially the shape of an inner cavity of the rigid body, and also provided with a neck having a flange projectin
1. A container for containing a substance to be dispensed by an airless pump, comprising an external rigid body inside which a bag is provided formed of thermoplastic material having substantially the shape of an inner cavity of the rigid body, and also provided with a neck having a flange projecting radially from one end thereof,the neck, at that end opposite the end at which the flange is present, being connected to a lateral surface of the bag,said lateral surface comprising a closure bottom,the bag presenting, at least at a connection surface between the bag's neck and the bag's lateral surface, controlled deformation zones arranged to guide the bag deformation in accordance with preferential directions pertaining to preferential longitudinally axial planes,wherein at least a central portion of the lateral surface is free from said controlled deformation zones,wherein the closure bottom presents further controlled deformation zones arranged to guide the bag deformation in accordance with further preferential directions,wherein said controlled deformation zones or said further controlled deformation zones are defined by protuberances which project from the connection surface between said lateral surface and the neck, said preferential deformation planes passing external to said protuberances,wherein the controlled deformation zones are arranged on at least a portion of an external edge of the connection surface between the neck of the bag and the lateral surface of the bag. 2. A bag to be inserted into the interior of a rigid body to form a container for containing a substance to be dispensed by an airless pump, the bag formed of thermoplastic material having substantially the shape of the inner cavity of the rigid body, and also being provided with a neck having a flange projecting radially from one end thereof,the neck, at that end opposite the end at which the flange is present, being connected to a lateral surface of the bag,said lateral surface comprising a closure bottom,the bag presenting, at least at a connection surface between its neck and its lateral surface, controlled deformation zones arranged to guide the bag deformation in accordance with preferential directions pertaining to preferential longitudinally axial planes,wherein at least a central portion of the lateral surface is free from said controlled deformation zones,wherein the closure bottom presents further controlled deformation zones arranged to guide the bag deformation in accordance with further preferential directions,wherein said controlled deformation zones or said further controlled deformation zones are defined by protuberances which project from the connection surface between said lateral surface and the neck, said preferential deformation planes passing external to said protuberances,wherein the controlled deformation zones are arranged on at least a portion of an external edge of the connection surface between the neck of the bag and the lateral surface of the bag. 3. The container as claimed in claim 1, wherein said further preferential directions are coplanar with said preferential directions. 4. The container as claimed in claim 1, wherein said controlled deformation zones or said further controlled deformation zones are defined by variations in the connection radius of the connecting wall between said neck and said lateral surface, or between said bottom and said lateral surface, said preferential deformation planes containing the points of greater connection radius. 5. The container as claimed in claim 4, wherein said controlled deformation zones extend at most slightly beyond the connection surface between the shoulder and the lateral surface and said further controlled deformation zones extend at most slightly beyond the connection surface between the bottom and the lateral surface. 6. The container as claimed in claim 1, wherein said controlled deformation zones are defined by radial depressions incorporated into the connection surface between said lateral surface and the neck, said preferential deformation planes passing external to said depressions. 7. The container as claimed in claim 1, wherein the bag neck presents external grooves arranged to enable air to be vented and/or extracted during blow-moulding and operation of the bag inside the external body when associated with the airless pump, said grooves being formed by crests provided in the blow-moulding mould, said crests maintaining the bag in the desired position during its blow-moulding step. 8. The container as claimed in claim 1, said neck presents external grooves arranged to enable air to be vented and/or extracted during blow-moulding and operation of the bag inside the rigid body when associated with the airless pump. 9. The bag as claimed in claim 2, wherein said further preferential directions are coplanar with said preferential directions. 10. The bag as claimed in claim 2, wherein said controlled deformation zones or said further controlled deformation zones are defined by variations in the connection radius of the connecting wall between said neck and said lateral surface, or between said bottom and said lateral surface, said preferential deformation planes containing the points of greater connection radius. 11. The bag as claimed in claim 2, wherein said controlled deformation zones extend at most slightly beyond the connection surface between the shoulder and the lateral surface and said further controlled deformation zones extend at most slightly beyond the connection surface between the bottom and the lateral surface. 12. The bag as claimed in claim 2, wherein said controlled deformation zones are defined by radial depressions incorporated into the connection surface between said lateral surface and the neck, said preferential deformation planes passing external to said depressions. 13. The bag as claimed in claim 2, said neck presents external grooves arranged to enable air to be vented and/or extracted during blow-moulding and operation of the bag inside the rigid body when associated with the airless pump. 14. The container as claimed in claim 1, wherein said controlled deformation zones consist of zones defined by variations in the connection radius of the connecting wall between said neck and said lateral surface, and said further connection zones consist of zones between said bottom and said lateral surface, said preferential deformation longitudinally axial planes containing the points of greater connection radius. 15. The bag as claimed in claim 2, wherein said controlled deformation zones consist of zones defined by variations in the connection radius of the connecting wall between said neck and said lateral surface, and said further connection zones consist of zones between said bottom and said lateral surface, said preferential deformation longitudinally axial planes containing the points of greater connection radius. 16. A method for making the container of claim 1 for containing a substance to be dispensed by an airless pump, comprising the steps of: a) preparing a substantially rigid external body, having a neck defining an access opening to an internal cavity of the body,b) and preparing a bag made of thermoplastic material having substantially the shape of the internal cavity of the rigid body, and provided with a neck having a flange projecting radially from one end thereof, the neck, at that end opposite the end at which the flange is present, being connected to a lateral surface of the bag, said lateral surface comprising a closure bottom, andc) sealedly coupling to the bag, via its neck, a probe arranged to withdraw the air contained in the bag interior and withdraw the air from the bag, hence causing a vacuum in the bag which causes the bag to contract, andd) while the bag is contracted, inserting the bag through the opening of the body until said flange abuts against a part of said body,e) feeding into the bag at least one jet of air which inflates the bag to press the bag against the inner walls of the body, hence returning the bag to the bag's original shape which preceded the bag's contraction, and/or withdrawing the compressed air located between the bag and the walls defining an internal cavity of the rigid body, the bag presenting, at least at a connection surface between the bag's neck and the bag's lateral surface, controlled deformation zones arranged to guide the bag deformation along preferential planes when the air is withdrawn, and before withdrawing the air contained in the bag interior, inserting the bag into a gripper located external to the container and provided with jaws which extend along said main planes, to at least partially deform the bag to guide the contraction process during air withdrawal. 17. The method as claimed in claim 16, wherein the bag when in the bag's contracted configuration is extracted from the gripper while maintaining the vacuum then, while still maintaining the vacuum, is inserted into the external body. 18. The method as claimed in claim 16, wherein said probe comprises a stem inserted into the bag at least during the air extraction and/or inflation operations, such that, at least when the bag is contracted, said stem maintains the bag elongated to guide the bag into the external body.
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이 특허에 인용된 특허 (5)
Dow Walter O. ; Obradovich Emil P., Aerosol dispensing container and method for assembling same.
Friedrich Richard (26 Auf Loebern 7701 Walschingen Kreis ; Constance DT) Rindelaub Frank A. E. (Ave. Marechal Foch Rixensart BE), Devices for holding and discharging liquid and paste-like substances under pressure.
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