Disposable cell and diaphragm pump for use of same
First Claim
1. A disposable cell for mounting inside a diaphragm-actuated, positive-suction and expulsion fluid-transfer control device having a split housing comprised of two substantially contiguous halves with said cell being clamped at its periphery between a peripheral zone of one half of said split housing and a peripheral zone of said diaphragm, comprising:
- two cell walls permanently and fluid-tightly joined to one another at their periphery, both of which walls are flexible, one of said walls being adapted to be flexed from a first position, in which it is located in close proximity to the other wall, reducing the space enclosed by said two walls, to at least a second position, in which at least some regions of said one wall have moved away from said other wall, thereby increasing said space between said two walls, andan inlet port and an outlet port provided in at least one of said walls,wherein in the mounted and operative state of said disposable cell, the walls thereof constitute an impervious lining of one half of said split housing on the one end, and of said diaphragm on the other.
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Accused Products
Abstract
A disposable cell for a diaphragm-actuated fluid-transfer control device, which comprises two cell walls peripherally joined to one another, of which at least one wall is flexible, and is adapted to be flexed from a first position, in which it is located in close proximity to the other wall, reducing the space enclosed between the two walls to a minimum, to at least a second position, in which at least some regions of the flexible wall have moved away from the other wall, thereby increasing the space between the two walls, and an inlet port and an outlet port provided in at least one of the walls. There is also described a combination of a disposable cell with a diaphragm-actuated fluid transfer control device.
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Citations
15 Claims
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1. A disposable cell for mounting inside a diaphragm-actuated, positive-suction and expulsion fluid-transfer control device having a split housing comprised of two substantially contiguous halves with said cell being clamped at its periphery between a peripheral zone of one half of said split housing and a peripheral zone of said diaphragm, comprising:
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two cell walls permanently and fluid-tightly joined to one another at their periphery, both of which walls are flexible, one of said walls being adapted to be flexed from a first position, in which it is located in close proximity to the other wall, reducing the space enclosed by said two walls, to at least a second position, in which at least some regions of said one wall have moved away from said other wall, thereby increasing said space between said two walls, and an inlet port and an outlet port provided in at least one of said walls, wherein in the mounted and operative state of said disposable cell, the walls thereof constitute an impervious lining of one half of said split housing on the one end, and of said diaphragm on the other. - View Dependent Claims (2, 3, 4, 5, 6)
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7. In a diaphragm-actuated, positive-suction and expulsion stroke fluid-transfer control device having a split constituted by two substantially contiguous halves, an improvement comprising:
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a disposable cell for mounting inside said split housing, being clamped at its periphery between a peripheral zone of one half of said split housing and a peripheral zone of said diaphragm, said cell having two cell walls permanently and fluid-tightly joined to one another at their periphery, both of which walls are flexible, one of said walls being attachable to, and capable of participating in the movement of, said diaphragm, said one wall being adapted to be flexed from a first position, in which it is located in close proximity to the other wall, reducing the space enclosed by said two walls, to at least a second position, in which at least some regions of said at least one wall have moved away from said other wall, thereby increaing said space between said two walls, an inlet port and an outlet port provided in at least one of said walls, and means for releasing air trapped between at least said attachable flexible wall and said diaphragm, said means comprising at least one region in said diaphragm adapted to pass air, wherein in the mounted and operative state of said disposable cell, the walls thereof constitute an impervious lining of one half of said split housing on the one hand, and of said diaphragm on the other. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A disposable cell for mounting inside a diaphragm-actuated, positive suction and expulsion stroke fluid-transfer control device having a suction and expulsion stroke fluid-transfer control device having a split housing comprised of two substantially contiguous halves, with said cell being clamped at its periphery between a peripheral zone of one half of said split housing and a peripheral zone of said diaphragm, comprising:
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two flexible cell walls permanently and fluid-tightly joined to one another at their periphery, one of said walls being adapted to be flexed from a first position, in which it is located in close proximity to the other wall, reducing the space enclosed by said two walls, to at least a second position, in which at least some regions of said one wall have moved away from said other wall, thereby increasing said space between said two walls, an inlet port and an outlet port provided in at least oen of said walls, wherein in the mounted and operative state of said disposable cell, the walls thereof constitute an impervious lining of one half of said split housing on the one hand, and of said diaphragm on the other. - View Dependent Claims (14)
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15. A positive-suction and expulsion stroke fluid-transfer control device, comprising:
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a split housing comprised of two substantially contiguous halves; a diaphragm linearly reciprocatable by means of an actuator rod and clampedly mounted at its periphery between peripheral zones of the members of said split housing; a disposable cell consisting of two cell walls permanently and fluid-tightly joined to one another at their periphery, with said cell being clamped at its periphery between a peripheral zone of one half of said split housing and a peripheral zone of said diaphragm, both of which walls are flexible, one of said walls being adapted to be flexed from a first position, in which it is located in close proximity to the other wall, reducing the space enclosed by said two walls, to at least a second position, in which at least some regions of said one wall have moved away from said other wall, thereby increasing said space between said two walls, and an inlet port and an outlet port provided in at least one of said walls, wherein in the mounted and operative state of said disposable cell, the walls thereof constitute an impervious lining of one half of said split housing on the one hand, and of said diaphragm on the other.
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Specification