| 摘要 |
A metering device having a housing with a successively return bent fluid receiving passage therein, having a discharge end and an inlet end, being of substantially constant capacity sufficiently restricted to generate fluid movement by capillary attraction upon the application of fluid movement from the discharge end thereof; a transparent plate mounted on the housing in fluid-tight covering relation to the passage; a coupling borne by the plate in communication with the discharge end of the passage for connection to a fluid consuming means in fluid transferring relation; and a scale borne by the plate against which fluid received in the passage can be read to reveal the time required to consume the fluid.
|
