Patent US4556757A successfully refreshed from Google Patents.
US4556757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective cover against radiation
Assignee: MICHAEL GEISELER DBF VERTRIEBS ARABELLASTRASSE 5 8000 MUNCHEN 81 GERMANY GmbH
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Filing: 1982-09-23
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Granted: 1985-12-03
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Expires: 2002-09-23
Abstract
Abstract Protective cover against radiation consisting of a first special foil, which has a metallized lateral surface (metallization layer) connectable with ground potential by a grounding cord, on a plastic carrier foil and which preferably is disposed between two layers made of a plastic protective foil, characterized in that adjacent to the first special foil, an additional, second special foil is disposed.
Inventors
- 👤 Josef Oberbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:21
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0073; H05K9/0081; H05K9/0088; G; G21; G21F; G21F1/00; G21F1/12; G21F1/125
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
122 words
A cover adapted to provide protection against radiation, said cover comprising: first foil means comprising a plastic carrier foil with metalization layers applied on both sides of said carrier foil, second foil means comprising a plastic carrier foil with metalization layers applied on both sides of said carrier foil, said first and second foil means being arranged on top of each other such that a layer of air is provided between the two layers facing each other, a first plastic protective foil arranged adjacent said first foil means and forming a layer of air therebetween, a second plastic protective foil arranged adjacent said second foil means and forming a layer of air therebetween, and a grounding cord connected to said metallization layers.
Claim 2
Dependent Claim
122 words
A cover adapted to provide protection against radiation, said cover comprising: first foil means comprising a plastic carrier foil with metalization layers applied on both sides of said carrier foil, second foil means comprising a plastic carrier foil with metalization layers applied on both sides of said carrier foil, said first and second foil means being arranged on top of each other such that a layer of air is provided between the two layers facing each other, a first plastic protective foil arranged adjacent said first foil means and forming a layer of air therebetween, a second plastic protective foil arranged adjacent said second foil means and forming a layer of air therebetween, and a grounding cord connected to said metallization layers.
Claim 3
Dependent Claim
34 words
The cover as in claim 1, wherein the grounding cord is split into cord parts each of which in the manner of a fan is connected with a said one of said metallization layers.
Claim 4
Dependent Claim
40 words
The cover as in claim 2, wherein in each of said foil means, one hole is provided to permit said cord parts to extend therethrough and to allow folding of the corner parts of said first and second foil means.
Claim 5
Dependent Claim
24 words
The cover as in claim 1, wherein the connection of the cord with the one or several metallization layers is accomplished by adhesive strips.
Claim 6
Dependent Claim
59 words
The cover of claim 1, wherein each foil means comprise a thin carrier foil of plastic, which is coated on the one side with silver and on the other side with gold, said foil means being arranged such that the two gold layers are disposed adjacent to one another, while the two silver layers always point to the outside.
References Cited (Backward Citations)
DE7206455U
Cited
US1989282A
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FR804362A
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US2983821A
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US2983948A
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US3390491A
Cited
FR2431271A1
Cited
US4297522A
Cited
FR2478985A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-02 | 1989-06-03 | 1989-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-02 | 1993-06-03 | 1993-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-02 | 1997-06-03 | 1997-12-03 | $7700.00 | Window Closed / Lapsed |