Dispensing – Volume or rate of flow metering
Reexamination Certificate
2006-09-26
2006-09-26
Nicolas, Frederick C. (Department: 3754)
Dispensing
Volume or rate of flow metering
C222S001000, C222S063000, C222S072000, C222S135000, C222S340000, C222S386000
Reexamination Certificate
active
07111757
ABSTRACT:
Devices and methods for accurate volumetric measurement and dispensing of any liquid, regardless of that liquid's density and vapor pressure, are disclosed. This invention employs devices and methods which are used to eliminate free volume from a variable volume chamber. A desired volume of liquid can be measured accurately within the volume range of the chamber. These devices and methods are suitable for volumetric measurement and dispensing of any liquid, regardless of density or vapor pressure.
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BrandTech Scientific, Inc., Catalog, 2002/2003, pp. 42-43, 50-51.
Merten Charles William
O'Brien Thomas Matthew
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