| 摘要 |
A flow rate measuring device for use with liquids or appropriate dry materials, comprising a receptacle calibrated to indicate flow rate (e.g. gallons per minute) rather than static volume, and where a specific sampling period (e.g. 5 seconds) is also specified and which establishes the ratio between the collected volume and the flow rate (e.g. 1/12th) thereby enabling a person to obtain a direct reading of the flow rate from a particular source simply by capturing that flow during the specified sampling period and then noting the level of collected material relative to the calibrations. This invention also provides for the inclusion of additional data such as the average costs related to each flow rate and the potential savings at a lower flow rate. For further convenience, the device of this invention may be manufactured from a flexible plastic material that could be folded flat, thus enabling it to be enclosed in a conventional envelope as for mailing.
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