IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0717336
(2010-03-04)
|
등록번호 |
US-8371476
(2013-02-12)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
9 |
초록
▼
A bulk bag includes a shell and a gate valve assembly and is configured to retain a material. The gate valve assembly includes a gate which is slidable to selectively prevent and facilitate variation of rate of dispensation of material from the bulk bag and, more particularly, through an aperture de
A bulk bag includes a shell and a gate valve assembly and is configured to retain a material. The gate valve assembly includes a gate which is slidable to selectively prevent and facilitate variation of rate of dispensation of material from the bulk bag and, more particularly, through an aperture defined by the shell of the bulk bag. The gate valve assembly has a configuration which, during movement of the gate to restrict dispensation of material through the aperture in the shell, renders the gate unlikely to snag with other portions of the bulk bag such as, for example, portions of the shell which define the aperture. Methods are also provided.
대표청구항
▼
1. A bulk bag for storing and dispensing bulk material, the bulk bag comprising: a flexible shell defining a storage chamber and a first aperture, the storage chamber configured to retain bulk material, the first aperture in communication with the storage chamber;a plurality of lifting members attac
1. A bulk bag for storing and dispensing bulk material, the bulk bag comprising: a flexible shell defining a storage chamber and a first aperture, the storage chamber configured to retain bulk material, the first aperture in communication with the storage chamber;a plurality of lifting members attached to the flexible shell; anda gate valve assembly comprising: a retention member fixedly attached to the flexible shell, defining a second aperture and at least partially defining a channel, wherein the second aperture is substantially aligned with the first aperture; anda gate extending along a longitudinal axis and having first and second openings along the longitudinal axis, the first and second openings each having a generally triangular shape, and the second opening being in a mirrored position relative to the first opening, the gate comprising: a first end;a second end;a first edge;a second edge;a third edge;a fourth edge;a fifth edge;a sixth edge; anda blocking portion that includes an upper surface; wherein:the first, second, and third edges cooperate to at least partially define the first opening;the first and second edges meet at a first vertex;the fourth, fifth, and sixth edges cooperate to at least partially define the second opening;the fourth and fifth edges meet at a second vertex;the first vertex and the second vertex are disposed upon the longitudinal axis;the upper surface of the blocking portion extends continuously between the first and second vertices;at least a portion of the gate is slidably received within the channel; andthe gate is slidable relative to the retention member between: a closed position in which the gate prevents dispensation of bulk material from the storage chamber through the first aperture, andan opened position in which the gate facilitates dispensation of bulk material from the storage chamber sequentially through the first aperture, one of the first and second openings, and the second aperture. 2. The bulk bag of claim 1 wherein: the longitudinal axis bisects the gate such that the gate is generally symmetrical on opposite sides of the longitudinal axis;the first edge is generally straight;the second edge is generally straight;the fourth edge is generally straight;the fifth edge is generally straight;the first vertex is at a location between the third edge and the second end; andthe second vertex is at a location between the sixth edge and the first end. 3. The bulk bag of claim 2 wherein: the first edge and the third edge meet at a third vertex;the second edge and the third edge meet at a fourth vertex;the fourth edge and the sixth edge meet at a fifth vertex; andthe fifth edge and the sixth edge meet at a sixth vertex. 4. The bulk bag of claim 2 wherein the third edge and the sixth edge are generally straight. 5. The bulk bag of claim 1 wherein each of the first and second openings selectively and alternatively serve as a handle and a regulator to facilitate dispensation of bulk material from the storage chamber. 6. The bulk bag of claim 1 wherein the retention member cooperates with the flexible shell to define the channel. 7. The bulk bag of claim 1 wherein the flexible shell is formed from at least one of cloth and plastic sheeting. 8. The bulk bag of claim 1 wherein the gate is formed as a unitary and substantially rigid structure. 9. The bulk bag of claim 1 wherein the gate is slidable with respect to the retention member to facilitate a variable rate of dispensation of bulk material from the storage chamber. 10. The bulk bag of claim 4 wherein the third edge and the sixth edge are not generally straight. 11. A bulk bag for storing and dispensing bulk material, the bulk bag comprising: a flexible shell defining a storage chamber and a first aperture, and the storage chamber configured to retain bulk material, wherein the first aperture is in communication with the storage chamber and has a first diameter;lifting means for facilitating lifting of the bulk bag; anda gate valve assembly comprising: a retention member fixedly attached to the flexible shell, defining a second aperture, and at least partially defining a channel, wherein the second aperture is substantially aligned with the first aperture; anda gate extending along a longitudinal axis and having a first opening and a second opening along the longitudinal axis, the first and second openings each having a generally triangular shape and each defining a first vertex and a second vertex, respectively, and the second opening being in a mirrored position relative to the first opening, the gate comprising a blocking portion that includes an upper surface that extends continuously between the first vertex and the second vertex; wherein:the first vertex and the second vertex are disposed upon the longitudinal axis;at least a portion of the gate is slidably received within the channel; andthe gate is slidable relative to the retention member between: a closed position in which the gate prevents dispensation of bulk material from the storage chamber through the first aperture, andan opened position in which the gate facilitates dispensation of bulk material from the storage chamber sequentially through the first aperture, one of the first and second openings, and the second aperture. 12. The bulk bag of claim 11 wherein the gate further comprises a first end and a second end, the longitudinal axis bisects the gate such that the gate is generally symmetrical on opposite sides of the longitudinal axis, the first vertex is at a location between the second vertex and the second end, and the second vertex is at a location between the first vertex and the first end. 13. The bulk bag of claim 11 wherein the first opening defines a third vertex and a fourth vertex and the second opening defines a fifth vertex and a sixth vertex. 14. The bulk bag of claim 11 wherein each of the first and second openings selectively and alternatively serve as a handle and a regulator to facilitate dispensation of bulk material from the storage chamber. 15. The bulk bag of claim 11 wherein the retention member cooperates with the flexible shell to define the channel. 16. The bulk bag of claim 11 wherein the flexible shell is formed from at least one of cloth and plastic sheeting. 17. The bulk bag of claim 11 wherein the gate is formed as a unitary and substantially rigid structure. 18. The bulk bag of claim 11 wherein the gate is slidable with respect to the retention member to facilitate a variable rate of dispensation of bulk material from the storage chamber.
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