US 12,292,233 B2
Freezing transport container, and cryogenic liquefied gas absorber case
Akira Mase, Tokyo (JP); and Shigehiro Yoshimura, Tokyo (JP)
Assigned to TAIYO NIPPON SANSO CORPORATION, Tokyo (JP)
Appl. No. 17/614,809
Filed by TAIYO NIPPON SANSO CORPORATION, Tokyo (JP)
PCT Filed Jun. 12, 2020, PCT No. PCT/JP2020/023187
§ 371(c)(1), (2) Date Nov. 29, 2021,
PCT Pub. No. WO2020/251010, PCT Pub. Date Dec. 17, 2020.
Claims priority of application No. 2019-110855 (JP), filed on Jun. 14, 2019.
Prior Publication US 2022/0228789 A1, Jul. 21, 2022
Int. Cl. F25D 3/10 (2006.01)
CPC F25D 3/105 (2013.01) 12 Claims
OG exemplary drawing
 
1. A freezing transport container including an insulated main body, an opening at the top, and a bottomed tubular shape, and a lid which is installed at the opening of the main body so as to open and close the opening of the main body,
wherein the main body has the same diameter at the opening at the top and the bottom,
the freezing transport container further includes a cryogenic liquefied gas absorber case which is installed removably at the bottom of the main body,
the cryogenic liquefied gas absorber case includes a case portion which has a bottomed tubular shape and a cryogenic liquefied gas absorber which is installed replaceably inside the case portion,
wherein the case portion is formed by a heat conductor and has a side wall portion arranged along an inner peripheral wall of the main body, and an inner space of the side wall portion is configured to function as a sample storage portion,
wherein a height of the side wall portion is higher than a height of the cryogenic liquefied gas absorber,
wherein the side wall portion is made of heat-conductive material with high thermal conductivity and configured to conduct heat from the absorber to a top edge of the wall portion forming an opening to the case portion, and
wherein a gap between the case portion and the lid is in a range between 2 to 3 mm, to thereby reduce heat transfer between the lid and the case portion,
wherein the liquid nitrogen absorber case further includes a fixing plate, at least one spacer, and at least two fixing screws,
wherein the cryogenic liquefied gas absorber is provided with holes in the thickness direction;
wherein the fixing plate is placed on the upper surface of the liquid nitrogen absorber, and provided with holes at positions corresponding to the holes in the cryogenic liquefied gas absorber;
wherein a bottom of the liquid nitrogen absorber case is provided with holes at positions correspond to the holes in the cryogenic liquefied gas absorber,
wherein the at least one spacer is threaded inside, and penetrates the hole of the cryogenic liquefied gas absorber; and
wherein the at least two fixing screws are screwed into the spacer from the upper end of the spacer via the fixing plate and the lower end of the spacer via the bottom of the cryogenic liquefied gas absorber case.