Patent ID: 11971733
Assignee: MUSTANG SAMPLING, LLC
Field: Control (Instruments)
Classification: CPC G  Y | IPC G

Claim 0:
1. A method for reducing the pressure of a vapor sample with a temperature and pressure regulating device including a heater unit through a plurality of calibrated stepped stages of pressure reduction, the method comprising the steps of:
inputting the vapor sample via a vapor sample inlet port formed within a housing of a pressure regulating device;
selectively directing the vapor sample to an adjustable first pressure regulating valve assembly disposed within a first ventless opening integrally formed in the housing where the first ventless opening is connected by an interconnect channel to an adjacent second pressure regulating valve assembly disposed within a second ventless opening integrally formed in the housing;
reducing the pressure of the vapor sample to a preset amount and passing the vapor sample to the adjacent adjustable second pressure regulating valve assembly disposed within the second ventless opening integrally formed in the housing where the second ventless opening is connected by a second interconnect channel to an adjacent third pressure regulating valve assembly disposed within a third ventless opening integrally formed in the housing;
reducing the pressure of the vapor sample to a second preset amount and passing the vapor sample to an adjacent adjustable third pressure regulating valve assembly; and
maintaining the sample in the vapor phase as the vapor sample passes through the first, second and third regulating valve assemblies with the heater unit disposed at least in part within the housing and generally equally spaced from and for communicating thermal energy to the first, second and third regulating valve assemblies.