IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0569988
(1984-01-11)
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발명자
/ 주소 |
- Bachmann Werner (Obfelden CHX)
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출원인 / 주소 |
- Neo Vac Aktiengesellschaft (Oberriet CHX 03) Adisa Service AG (Urdorf CHX 03)
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인용정보 |
피인용 횟수 :
9 인용 특허 :
0 |
초록
▼
To permit monitoring of tightness of a tank, particularly buried tanks for highly flammable or explosive liquids such as gasoline, flammable hydrocarbon solvents, acids, alkaline solutions and the like, and prevent formation of sparks due to electric charge of an inner liner, the inner surface of th
To permit monitoring of tightness of a tank, particularly buried tanks for highly flammable or explosive liquids such as gasoline, flammable hydrocarbon solvents, acids, alkaline solutions and the like, and prevent formation of sparks due to electric charge of an inner liner, the inner surface of the tank has an embossed aluminum foil applied thereagainst, the inner surface of which has an epoxy layer (19) applied thereto by spraying, so that the depressions opposite the corrugations or projections (17) of the foil (15) will be filled with the epoxy. After curing, the epoxy layer (19), preferably fiber-reinforced, is tested for freedom from pores and proper thickness by standard spark induction and eddy current testing methods, and then has another resin layer, preferably epoxy, applied thereto which is made electrically conductive by additives of metal, or carbonaceous granules, flakes or fibers, such as aluminum, nickel, copper brass or of graphite.
대표청구항
▼
Double-grounded wall tank, particularly for storage of potentially explosive or highly combustible substances such as gasoline, other petroleum products, volatile hydrocarbon solvents, acids, alkaline solutions and the like, having a metal outer wall (11) which is electrically connected to ground; a
Double-grounded wall tank, particularly for storage of potentially explosive or highly combustible substances such as gasoline, other petroleum products, volatile hydrocarbon solvents, acids, alkaline solutions and the like, having a metal outer wall (11) which is electrically connected to ground; an inner wall (19, 21); and a spacer foil (15) separating the outer and inner walls and defining therebetween a test chamber (14) to permit pneumatic supervision of fluid tightness of the outer and inner walls, respectively, wherein, in accordance with the invention, the inner wall comprises a composite layer including a non-porous fiber-reinforced epoxy layer sprayed on the spacer foil spray-connected on the spacer foil (15) and bonded thereto; and an electrically conductive inner resin layer (21) spray-connected on the non-porous fiber-reinforced epoxy layer and bonded thereto, said electrically conductive inner resin layer (21) being positioned at the inside of the tank for contact with the substance to be retained therein and electrically groundable to prevent build-up of static electricity thereon.
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