The mixer-settler extraction circuit includes a flow distributor.

A method and apparatus for operating a pressure vessel (25) containing a bed of particulate material (32) comprising substantially leveling the bed and employing a fluid flow distributor (52) above the bed (32).

The flow distributor comprises a slat assembly which directs the incoming liquid into the settling portion of the mixer-settler extraction circuit.

The dispense provides metered dispensing.

The feeder includes a container, a flow regulating member and a flow restricting member.

The mixer-settler extraction circuit includes a flow distributor.

A breathing gas dispenser with selectable output flow rates.

The fluid dispenser component further includes a fluid flow control assembly (18) that filters, and precisely controls the flow of the medicament solution from the reservoir of the dispenser container.

A method of measuring the flow rate of a fluid in the fluid dispenser is also disclosed.

Flow measuring apparatus (10) particularly for use in measuring the flow of fluid in a drinks dispensing machine, comprises a flow passage (11) in which are mounted a pair of oppositely directed receiver/transmitter devices (12).

The dispenser includes a slide valve for changing the flow rate of the liquid chemical water therethrough.

The invention relates to a dispenser for a high-pressure turbine having automatic control of cooling air flow passing therethrough.

A hand-held dispenser for precisely controlling the flow rate of water therethrough and for injecting a liquid chemical into the water passing through the dispenser.

Various improvements in retaining the distributor and increasing flow efficiency are described.

The fluid dispenser also includes a fluid flow control assembly (126) that precisely controls the flow of the medicament solution to the patient.