Electricity: conductors and insulators – Anti-inductive structures – Conductor transposition
Patent
1983-06-20
1985-12-03
Grimley, A. T.
Electricity: conductors and insulators
Anti-inductive structures
Conductor transposition
5482, 2505191, 339277R, H05K 900
Patent
active
045567573
DESCRIPTION:
BRIEF SUMMARY
According to one aspect, the invention relates to a cover for protection against rays or absorption of rays consisting of a special foil which has a lateral surface (metal layer) on a plastic carrier foil that can be connected with earth potential by a grounding cord, and which preferably is disposed in the manner of a sandwich between two layers made of a plastic protective foil.
In the case of a protective cover against radiation which is already known and according to the German utility patent No. 7206455, a certain protection will be achieved against cold and humidity, and furthermore a certain screening against radiation will be achieved.
The known protective covers against radiation however are not to be considered in every respect as being satisfactory, and the present invention provides for known protective covers against radiation for the avoidance of the disadvantages that in the case of a protective cover against radiation of the initially mentioned type, adjoining a first special foil, an additional second foil is disposed which likewise may be connected by the grounding cord with earth potential. Preferably, one and the same grounding cord is connected on the one hand with the two metal layers of the special foils and on the other hand with the earth potential.
Preferably, the first and the second special foils are disposed such that their plastic carrier foils lie on top of one another.
According to a further aspect of the invention, a protective layer against radiation is provided which has two special foils disposed adjoining one another, whereby each of these special foils has a plastic carrier foil which carries on the one side a silver layer and on the other, oppositely lying side a gold layer. Preferably, the two special foils are disposed in such a way that always the gold layers face one another. In this preferred case then, the silver layers face the outside.
Additional advantages of the development of the invention will result especially from the subclaims.
Further advantages, goals and details of the invention will result from the description of embodiments by way of example based on the drawing; in the drawing
FIG. 1 shows a schematic view of the protective cover against radiation;
FIG. 2 shows a partial cut along the line A--A in FIG. 1;
FIG. 3 shows a cut through another embodiment of the special cover according to the invention by way of example;
FIG. 4 shows a partial cut through a third embodiment given by way of example of the protective cover against radiation according to the invention;
FIG. 5 shows the type of connection of the grounding cord to the protective cover against radiation, preferred according to the invention;
FIG. 6 shows a preferred development of the grounding plug according to the invention;
FIG. 7 shows another view of the grounding plug according to FIG. 6;
FIG. 8 shows a further preferred embodiment by way of example of a protective cover against radiation and according to the invention, whereby, as in the case of the presentation according to FIG. 3, the plastic, protective foils are always omitted.
The protective cover 1 against radiation constructed according to the invention has an outer wrapping consisting of two plastic protective foils 5 and 6, whereby the plastic protective foil 5 lying on top in the FIGS. 1 and 2, has a wrapping part 9 in order to overlap with the plastic protective foil 6 in the manner shown in FIG. 2. Two special foils 2, 20 have about the same size as the plastic protective foil 6 and are sewn together near their edges with the plastic protective foil 5 as well as in their cover part 9 in the manner shown in FIG. 2 at 7. Depending on the desired area of protection, the protective cover 1 against radiation may be produced in various sizes, for example, in the size of a bed.
The special foils 2, 20 are produced, for example, by the firm Dupont and always consist of a thin, plastic carrier foil 3, 30 with a thin metal layer 4, 40 steamed onto it. The two special foils 2, 20 may be glued together over their entire surface of con
REFERENCES:
patent: 1989282 (1935-01-01), Kimble
patent: 2983821 (1961-05-01), Cap
patent: 2983948 (1960-03-01), Silversher
patent: 3390491 (1968-07-01), Hayden et al.
patent: 4297522 (1981-10-01), Jesse et al.
Grimley A. T.
Michael Geiseler DBF-Vertriebs-GmbH
Tone D. A.
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