|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||65/034 ; 65/032.2|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 45 인용 특허 : 10|
A process for producing a vacuum in an insulating glazing composed of two glass sheets (2, 3) separated by pins (4). According to the invention, one of the glass sheets includes a hole (12) which is plugged by a softened ball after the vacuum has been achieved. The invention also relates to an insulating glazing whose glass sheets are separated by pins (4) and joined at their periphery by a sealing joint.
[ What is claimed as new and desired to be secured by Letters Patent of the United States is:] [1.] A process for producing a vacuum between two glass sheets of an insulating glazing, one of these glass sheets having a hole drilled in its thickness, comprising:placing a ball at an external end of the hole;forming a vacuum between the glass sheets;softening the ball to seal the glass sheet by plugging said hole; and raising a temperature of the glass sheet to that of a softening temperature of the ball simultaneously with softening of said ball.