초록 ▼

Method for controlling movement of a liquid from a first location to a second location via a dispenser for the liquid located in a liquid line between the first and second location. The dispenser includes a nozzle, an internal liquid conduit, a valve, a body portion, a hollow annular collar and a fi

Method for controlling movement of a liquid from a first location to a second location via a dispenser for the liquid located in a liquid line between the first and second location. The dispenser includes a nozzle, an internal liquid conduit, a valve, a body portion, a hollow annular collar and a first detector. The first detector is located in the collar which is positioned around the nozzle or between the nozzle and the body portion such that the first detector is in vapor communication with a vapor space above the second location. The vapor from the vapor space is analyzed by withdrawing the vapor past the first detector and using the results of the analysis to control the operation of the valve.

대표청구항 ▼

1. A method for controlling the movement of a liquid, from a first location to a second location via a dispenser for the liquid located in a liquid line between the first and second location, wherein the dispenser comprises a nozzle, an internal liquid conduit, a valve, a body portion, a hollow annu

1. A method for controlling the movement of a liquid, from a first location to a second location via a dispenser for the liquid located in a liquid line between the first and second location, wherein the dispenser comprises a nozzle, an internal liquid conduit, a valve, a body portion, a hollow annular collar and a first detector and wherein the first detector is located in the collar which is positioned around the nozzle or between the nozzle and the body portion such that the first detector is in vapor communication with a vapor space above the second location, said method comprising analyzing the vapor from said vapor space by withdrawing the vapor past the first detector and using the results of the analysis to control the operation of said valve, wherein the first location has a vapor space above the liquid and a second detector is placed in vapor communication with said vapor space, the method comprising analyzing the vapor in or from the second location and in or from the first location, and comparing the results of the analysis in or from the second location with the results from the analysis in or from the first location.