Fluid dispensing system
First Claim
1. An apparatus comprising:
- a fluid reservoir;
a compressible metering chamber comprising a first end coupled to the fluid reservoir and a second end;
a valve coupled to the second end of the metering chamber, the valve having a deformable base member and a deformable skirt member positioned around the deformable base member; and
a nozzle coupled to the valve, the nozzle having a reservoir within which the valve is positioned, wherein the reservoir defines an annular chamber having an inner side and an outer side which are substantially parallel and face one another, wherein a distance between the inner side and the outer side define a gap, wherein a portion of the deformable skirt member lies in the gap, wherein a thickness of the gap is greater than a thickness of the portion of the deformable skirt member such that the deformable skirt member forms a seal with the outer side of the annular chamber when the deformable base member is in the open position and a seal with the inner side of the annular chamber when the deformable base member is in a closed position.
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Accused Products
Abstract
An apparatus including a fluid reservoir and a compressible metering chamber including a first end coupled to the fluid reservoir and a second end. The apparatus further including a valve coupled to the second end of the metering chamber and a nozzle coupled to the valve. A system including linearly translatable cartridge mounting assembly having a plurality of fluid dispensing cartridge mounting stations and a plurality of fluid dispensing cartridges mounted to respective fluid dispensing cartridge mounting stations. The system further including a plurality of compression assemblies coupled to respective fluid dispensing cartridges and a receiving assembly positioned beneath the mounting assembly. A method includes positioning a fluid dispensing cartridge comprising a fluid reservoir and a metering chamber over a sample retaining member, applying a compressive force to the metering chamber to eject a predetermined amount of fluid and removing the compressive force to refill the metering chamber.
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Citations
18 Claims
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1. An apparatus comprising:
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a fluid reservoir; a compressible metering chamber comprising a first end coupled to the fluid reservoir and a second end; a valve coupled to the second end of the metering chamber, the valve having a deformable base member and a deformable skirt member positioned around the deformable base member; and a nozzle coupled to the valve, the nozzle having a reservoir within which the valve is positioned, wherein the reservoir defines an annular chamber having an inner side and an outer side which are substantially parallel and face one another, wherein a distance between the inner side and the outer side define a gap, wherein a portion of the deformable skirt member lies in the gap, wherein a thickness of the gap is greater than a thickness of the portion of the deformable skirt member such that the deformable skirt member forms a seal with the outer side of the annular chamber when the deformable base member is in the open position and a seal with the inner side of the annular chamber when the deformable base member is in a closed position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An apparatus comprising:
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a fluid reservoir; a compressible metering chamber comprising a first end coupled to the fluid reservoir and a second end; a deformable valve coupled to the second end of the metering chamber; and a nozzle coupled to the deformable valve, wherein the nozzle defines a reservoir connected to a fluid outlet channel, wherein the reservoir comprises an annular chamber having an inner side and an outer side which are substantially parallel and face one another, wherein a distance between the inner side and the outer side define a gap, wherein a portion of the deformable valve lies in the gap, wherein a thickness of the gap is greater than a thickness of the portion of the deformable valve such that the portion of the deformable valve within the gap forms a seal with the outer side of the annular chamber when the deformable valve is in an open position and a seal with the inner side of the annular chamber when the deformable valve is in a closed position.
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Specification