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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0522850 (1983-08-12) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 18 인용 특허 : 2 |
This invention relates to vacuum-tight tubular enclosures, made of plastic material and designed for making up insulating panels. Each vacuum cell is composed of a rigid plastic tube (1), both ends of which are closed by perforated plugs (3). This tube is placed in a thin flexible sheath (6) of high
A cell for insulating panels comprising: plastic gas impervious flexible sheath, having first and second sealed ends; and at least one rigid hollow, plastic tubular element having first and second ends, said tubular element being disposed within said sheath; wherein said sealed sheath and tubular el
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