|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/202 ; 137/210 ; 62/55|
|발명자 / 주소|
|인용정보||피인용 횟수 : 18 인용 특허 : 0|
A cryogenic liquid storage tank has an automatic pressure relief means which vents vapor while the tank is being filled so that the tank may be completely filled. The pressure relief means includes a float which, when the cryogenic tank is filled, automatically closes the pressure relief means. In an alternative embodiment, the pressure relief means is combined with an eductor attached to the tank\s inlet. The eductor entrains and condenses vapor within the tank to minimize the amount of vapor vented by the pressure relief means.
A cryogenic tank for receiving, storing, and dispensing a cryogenic liquid with a vapor space adjacent the top of the tank above the liquid in the bottom of the tank, the tank comprising: (a) an outer vessel; (b) an inner vessel for containing the cryogenic liquid; (c) an insulating space between the vessels; (d) a sealable access port connected to the inner vessel to provide sealed access from outside the outer vessel to inside the inner vessel; (e) an inlet tube extending from outside the outer vessel through the access port into the inner vessel and h...