US 12,259,371 B2
Carrier gas connection device for gas chromatographs
Bo Chu, Shanghai (CN)
Assigned to Agilent Technologies, Inc., Santa Clara, CA (US)
Appl. No. 17/294,559
Filed by AGILENT TECHNOLOGIES, INC., Santa Clara, CA (US)
PCT Filed Nov. 16, 2018, PCT No. PCT/CN2018/115823
§ 371(c)(1), (2) Date May 17, 2021,
PCT Pub. No. WO2020/097899, PCT Pub. Date May 22, 2020.
Prior Publication US 2022/0011279 A1, Jan. 13, 2022
Int. Cl. G01N 30/38 (2006.01); G01N 30/02 (2006.01)
CPC G01N 30/38 (2013.01) [G01N 2030/025 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A carrier gas connection device comprising:
a carrier block comprising first and second carrier block carrier gas passageways formed in the carrier block, and each of the carrier block carrier gas passageways comprises an entrance and exit;
a channel adaptor comprising a channel adaptor carrier gas passageway having an entrance and an exit;
a clamping system that fastens the carrier block to the channel adaptor in a substantially fluid-tight connection; and
the carrier gas connection device comprises first and second channel adaptor positions wherein:
(i) in the first channel adaptor position, the channel adaptor carrier gas passageway entrance aligns with the first carrier block carrier gas passageway exit to form a fluid-tight flow path for a first carrier gas out of the carrier block into the channel adaptor, and
(ii) in the second channel adaptor position, the channel adaptor carrier gas passageway entrance aligns with the second carrier block carrier gas passageway exit to form a fluid-tight flow path for a second carrier gas out of the carrier block into the channel adaptor.