US 11,796,515 B2
Gas analyte spectrum sharpening and separation with multi-dimensional micro-GC for gas chromatography analysis
Tsung-Kuan A. Chou, San Jose, CA (US); Shih-Chi Chu, Taipei (TW); Chia-Sheng Cheng, Sihu shiang (TW); Li-Peng Wang, Taipei (TW); and Chien-Lin Huang, Sinjhuang (TW)
Assigned to Tricorntech Corporation, New Taipei (TW)
Filed by TricornTech Taiwan, Taipei (TW)
Filed on Jun. 9, 2021, as Appl. No. 17/343,645.
Application 15/925,322 is a division of application No. 14/659,212, filed on Mar. 16, 2015, granted, now 9,921,192, issued on Mar. 20, 2018.
Application 14/659,212 is a division of application No. 13/089,850, filed on Apr. 19, 2011, granted, now 8,978,444, issued on Mar. 20, 2018.
Application 17/343,645 is a continuation of application No. 15/925,322, filed on Mar. 19, 2018, granted, now 11,035,834, issued on Jun. 15, 2021.
Claims priority of provisional application 61/327,392, filed on Apr. 23, 2010.
Prior Publication US 2021/0300622 A1, Sep. 30, 2021
Int. Cl. B65D 17/28 (2006.01); B21D 21/00 (2006.01); B65B 61/18 (2006.01); B21D 51/38 (2006.01); B65D 17/353 (2006.01); B21D 51/26 (2006.01); G01N 30/30 (2006.01); G01N 29/02 (2006.01); G01N 30/46 (2006.01); G01N 30/60 (2006.01); G01N 30/88 (2006.01)
CPC G01N 30/30 (2013.01) [B21D 21/00 (2013.01); B21D 51/2661 (2013.01); B21D 51/383 (2013.01); B65B 61/184 (2013.01); B65D 17/353 (2018.01); B65D 17/4011 (2018.01); B65D 17/4012 (2018.01); G01N 29/022 (2013.01); G01N 30/463 (2013.01); G01N 30/465 (2013.01); G01N 30/6095 (2013.01); B65D 2517/0014 (2013.01); B65D 2517/0016 (2013.01); G01N 30/468 (2013.01); G01N 2030/884 (2013.01); G01N 2291/021 (2013.01); G01N 2291/0256 (2013.01); G01N 2291/0423 (2013.01); G01N 2291/0426 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a Dean switch formed in or on a microchip, the Dean switch comprising a first Y-splitter, a second Y-splitter, and a third Y-splitter, wherein:
the first Y-splitter is fluidly coupled to a fluid inlet of the Dean switch,
the second Y-splitter is fluidly coupled to a fluid outlet of the Dean switch, to an outlet of a flow rate restrictor, and to an outlet of the first Y-splitter, and
the third Y-splitter is fluidly coupled to an additional fluid outlet of the Dean switch, to an outlet of an additional flow rate restrictor, and to an additional fluid outlet of the first Y-splitter.