초록 ▼

A method and apparatus for monitoring and calibrating fluid flow through a conduit comprises sliding a control plate into the conduit and restricting the flow of fluid through the conduit so as to determine the minimum acceptable flow. The position of the control plate at minimum acceptable flow is

A method and apparatus for monitoring and calibrating fluid flow through a conduit comprises sliding a control plate into the conduit and restricting the flow of fluid through the conduit so as to determine the minimum acceptable flow. The position of the control plate at minimum acceptable flow is determined, following which the plate is removed from the conduit. At periodic intervals the control plate again may be slid into the conduit to ascertain whether the acceptable minimum flow has changed, thereby verifying acceptable fluid flow and enabling remedial measures to be taken if the fluid flow has deteriorated.

대표청구항 ▼

Apparatus for use in determining a minimum acceptable volume of fluid flow through a conduit, said apparatus comprising means for inducing fluid flow through said conduit at a volume greater than a minimum acceptable volume; barrier means movable from a first position in which fluid flow through sai

Apparatus for use in determining a minimum acceptable volume of fluid flow through a conduit, said apparatus comprising means for inducing fluid flow through said conduit at a volume greater than a minimum acceptable volume; barrier means movable from a first position in which fluid flow through said conduit is substantially unrestricted to a second position in which fluid flow through said conduit is restricted to a volume less than said acceptable minimum volume; sensor means for sensing the volume of fluid flow through said conduit; and signal means operable in response to sensing by said sensor means of a reduction in the volume of fluid flowing through said conduit to a volume less than said minimum acceptable volume for signaling said reduction.