Testing device and method of use
First Claim
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.
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Accused Products
Abstract
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.
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Citations
24 Claims
- 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.
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13. An apparatus which is a liquid dispenser comprising
a tank containing vapor; -
a nozzle for the exit of liquid which nozzle is insertable into said tank containing vapor;
an internal liquid conduit through the dispenser for the liquid;
a valve in said conduit for control of dispensing said liquid;
a body portion;
a hollow annular collar;
a first detector;
a processing means;
a first means for passing a signal from said first detector to said processing means for comparison of said signal; and
a valve controller means;
said detector being located in the collar which is positioned around the nozzle or between the nozzle and the body portion, wherein in use vapors at the exit end of the nozzle are drawn into the collar and past the first detector, wherein said apparatus comprises a second detector adapted to be in vapor communication with vapors at the uptake end of the dispenser and a second means for passing a signal from said second detector to the processing means for comparison with the signal from said first detector. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. 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 annular collar also comprises a processor to analyze the results from the detector and a valve controller to act on instructions from said processor.
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24. An apparatus which is a liquid dispenser comprising
a tank containing vapor; -
a nozzle for the exit of liquid which nozzle is insertable into said tank containing vapor;
an internal liquid conduit through the dispenser for the liquid;
a valve in said conduit for control of dispensing said liquid;
a body portion;
a hollow annular collar;
a first detector;
a processing means;
a first means for passing a signal from said first detector to said processing means for comparison of said signal; and
a valve controller means;
said detector being located in the collar which is positioned around the nozzle or between the nozzle and the body portion, wherein in use vapors at the exit end of the nozzle are drawn into the collar and past the first detector, wherein the processing means and the controller means are located in the collar.
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Specification