Loading patent…
AssigneesWestpoint Research Inc., Cummins Westport Inc.
InventorsThomas Currie Brook, Samuel Douglas Chambers
Estimating the term…
In the present method, cold substances are transferred through a nozzle with moving parts. An insulating boot facilitates the method. The present method is generally suited for use in transferring cryogenic substances such as during the refueling of liquid natural gas vehicles. The present method causes an insulating layer to be created between a removable boot and a nozzle separating the ambient environment from the moving parts of the nozzle, purging the layer with a dry gas such as nitrogen to remove moisture and restricting the incursion of such moisture from the layer and therefore, from the moving parts to avoid freezing up of the moving parts. The layer can also help to avoid freezing up of the abutting interface created between the nozzle and receiving line when the nozzle is removably engaged to a receiving line.
A method of transferring a first substance through a nozzle comprising at least one moving part into a receiving line, said nozzle within an ambient environment and removable from said receiving line, said ambient environment comprising at least one constituent, said method comprising:
A removable boot capable of fitting around a cryogenic nozzle that has at least one moving part, said boot comprising an air impermeable membrane which defines about said nozzle a moisture insulating layer which is restrictively sealed by said membrane and said nozzle from an ambient environment, said moisture insulating layer being in communication with said at least one moving part.
Dependencies are inferred from the claim text.