Patents Assigned to Bridgestone Liquefied Gas Co., Ltd.
  • Cryogenic liquefied gas tank
    Patent number: 4183221
    Abstract: A cryogenic liquefied gas tank composed of a gas-tight outer vessel, a heat insulating layer provided at the inside of the outer vessel and a liquid-tight inner vessel made of concrete and provided at the inside of the heat insulating layer, wherein the hydraulic pressure of the cryogenic liquefied gases loaded in the inner vessel is supported by the concrete inner vessel while the gas pressure of the cryogenic liquefied gases is supported by the gas-tight outer vessel.
    Type: Grant
    Filed: June 27, 1977
    Date of Patent: January 15, 1980
    Assignee: Bridgestone Liquefied Gas Co. Ltd.
    Inventor: Katsuro Yamamoto, deceased
  • Cryogenic liquefied gas tank of the membrane type
    Patent number: 4119241
    Abstract: A cryogenic liquefied gas tank of the membrane type including an inner membranous vessel having rounded corner portions, wherein the rounded corner portions are supported by saddle elements which are shifted by thermosensitive expansion and contraction rod means in accordance with the change of temperature of the membranous vessel so as to always fit the corner portions.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: October 10, 1978
    Assignee: Bridgestone Liquefied Gas Co. Ltd.
    Inventor: Kazuhisa Furuta
  • Low temperature liquefied gas tank
    Patent number: 4098425
    Abstract: A low temperature liquefied gas tank of the membrane type including a membraneous inner vessel having a rectangular parallelepiped shape with substantially spherical corner portions, wherein each of said corner portions is provided with a membraneous patch member which is shaped to follow said corner portion and is connected to said inner vessel at its rim portion in a fluid-tight manner.
    Type: Grant
    Filed: May 20, 1974
    Date of Patent: July 4, 1978
    Assignee: Bridgestone Liquefied Gas Co., Ltd.
    Inventor: Katsuro Yamamoto