|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||062/0451; 062/0462; 062/0511; 428/069; 428/074; 428/075|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 1 인용 특허 : 22|
Improved process for evacuating the thermally insulating jacket of a dewar having an inner wall and an outer wall, with the inner space between said walls completely or partially filled with an insulating material, containing also a moisture sorbing material and a getter material, in which said moisture sorbing material is a chemical drying agent.
What we claim is: 1. A process for producing an improved thermally insulating jacket, having an inner wall and an outer wall, and having an inner space between said walls containing an insulating material, wherein said inner space also contains a moisture sorbing material and a getter material, wherein said moisture sorbing material is a moisture sorbing material, having a H2O vapor pressure lower than 1 Pa at room temperature, characterized by the following steps:A. evacuating the inner space of the jacket down to a pressure lower than 100 Pa by means o...