US 11,987,781 B2
Gas collection device
Eun Byeol Ko, Daejeon (KR); Jung Hye Won, Daejeon (KR); Nak Hee Choi, Daejeon (KR); Ji Seok Lee, Daejeon (KR); Eun Yeong Jin, Daejeon (KR); and Hae Sung Yun, Daejeon (KR)
Assigned to LG Chem, Ltd., Seoul (KR)
Filed by LG Chem, Ltd., Seoul (KR)
Filed on Jun. 28, 2021, as Appl. No. 17/360,585.
Claims priority of application No. 10-2020-0081741 (KR), filed on Jul. 2, 2020; and application No. 10-2020-0170281 (KR), filed on Dec. 8, 2020.
Prior Publication US 2022/0002648 A1, Jan. 6, 2022
Int. Cl. C12M 1/107 (2006.01); C12M 1/00 (2006.01); C12M 1/04 (2006.01); C12M 1/24 (2006.01); C12M 1/34 (2006.01)
CPC C12M 23/36 (2013.01) [C12M 23/08 (2013.01); C12M 23/38 (2013.01); C12M 29/00 (2013.01); C12M 41/14 (2013.01); C12M 41/34 (2013.01); C12M 41/46 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A gas collection device comprising:
a constant temperature chamber having an interior that is configured to be maintained at a set temperature;
a culture flask unit located inside the constant temperature chamber and configured to culture bacteria therein;
an injection flow path that is a passage through which an air inside the constant temperature chamber is configured to flow into the culture flask unit, the injection flow path being provided with a check valve configured to prevent backflow of the air;
an adsorption unit located outside the constant temperature chamber and configured to receive a gas inside the culture flask unit;
a pump unit connected to a rear end of the adsorption unit and configured to suck the gas inside the culture flask unit into the adsorption unit;
a mass flow controller located outside the constant temperature chamber and configured to control a flow rate of the gas sucked into the adsorption unit; and
a vent hole configured to vent an air inside and outside the constant temperature chamber, the vent hole located on one side wall of the constant temperature chamber, the vent hole having a filter portion for filtering particles in the air, the vent hole configured to maintain a constant air pressure in the interior of the constant temperature chamber.