| 发明名称 |
Flow rate measuring device |
| 摘要 |
A flow rate measuring device having a housing for enclosing and preventing a removable ramp from being exposed to ambient light. The ramp includes an upper transparent section and a lower transparent section enabling a flowable substance to flow therebetween. A timing circuit connected to a first photo detector and a second photo detector below transparent sections of the ramp determines amount of time for a flowable substance to flow between the first photo detector and the second photo detector. Artificial light sources above the photo detectors are included within the housing. |
| 申请公布号 |
US8936471(B2) |
申请公布日期 |
2015.01.20 |
| 申请号 |
US201414301294 |
申请日期 |
2014.06.10 |
| 申请人 |
|
发明人 |
Evans Cheryl L. |
| 分类号 |
G09B19/00;G01F1/00;A61B5/11;A61B5/00;G01F1/708;G01F1/712 |
主分类号 |
G09B19/00 |
| 代理机构 |
Chicago IP Law |
代理人 |
Chicago IP Law ;Evans Steven M. |
| 主权项 |
1. A flow rate measuring device, comprising:
a ramp having an upper portion and a lower portion enabling a flowable substance to flow between the upper portion and the lower portion; a first photo detector located proximate the upper portion of the ramp for detecting when a flowable substance passes by the first photo detector; a second photo detector located proximate the lower portion of the ramp for detecting when a flowable substance passes by the second photo detector; and a timing circuit connected to the first photo detector and the second photo detector, wherein the timing circuit determines amount of time for a flowable substance to flow between the first photo detector and the second photo detector. |
| 地址 |
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