Patent ID: 11899032
Assignee: LECO CORPORATION
Field: Measurement (Instruments)
Classification: CPC F  G | IPC F  G

Claim 4:
5. The molar transfer device of claim 4, wherein, wherein the ballast mechanism further comprises:
a second ballast cylinder;
a second passive piston provided in the second ballast cylinder that divides the second ballast cylinder into a third ballast and a fourth ballast;
a third ballast port for allowing gas to flow into and out of the second ballast; and
a fourth ballast port for allowing gas to flow into and out of the fourth ballast;
wherein the rotary valve further comprises a second valve end cap including a third cap port connected to the third ballast port and extending internally to align with one of the first axial port, the second axial port, and the third axial port depending on the rotational position of the rotating cylindrical chamber, and a fourth cap port connected to the fourth ballast port and extending internally to align with another one of the first axial port, the second axial port, and the third axial port depending on the rotational position of the rotating cylindrical chamber,
wherein the motor rotates the rotating cylindrical chamber to four different rotational positions in order to alter which of the first axial port, the second axial port, and the third axial port is aligned with the first cap port, the second cap port, the third cap port, and the fourth cap port such that each of the first, second, third, and fourth ballast chambers is sequentially filled with gas from the upstream gas stream, equilibrated with the midstream gas stream, and emptied into the downstream gas stream, wherein as the third ballast chamber is filled, the fourth ballast chamber is emptied and as the fourth ballast chamber is filled, the third ballast chamber is emptied.