US4835796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Goggles for protection against laser radiation
Assignee: Uvex Winter Optik GmbH
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Filing: 1987-10-01
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Granted: 1989-06-06
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Expires: 2007-10-01
Abstract
Abstract Protective goggles against laser radiation comprises a frame, particularly of plastic and containing protective lenses, its inside being at least partially covered with a shielding layer made from another material for attaining a large degree of protection, the shielding layer being formed of a flexible graphite material.
Inventors
- 👤 Klaus Wiedner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:58
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/02; A61F9/022
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
106 words
Protective goggles against laser radiation comprising: a frame including side shields and containing at least one protective lens; wherein said goggles comprise a light weight frame, having a generally box-like configuration and said shielding extends across the side shields and the area of the bridge of the nose; wherein the inside of said frame is at least partially covered with a layer of a flexible graphite shielding material; wherein said flexible graphite shielding material is formed of pressed flakes of pure graphite; wherein said flexible graphite shielding layer is covered with aluminum foil; and wherein the shielding is glued to the inside of the goggle frame.
Claim 2
Dependent Claim
106 words
Protective goggles against laser radiation comprising: a frame including side shields and containing at least one protective lens; wherein said goggles comprise a light weight frame, having a generally box-like configuration and said shielding extends across the side shields and the area of the bridge of the nose; wherein the inside of said frame is at least partially covered with a layer of a flexible graphite shielding material; wherein said flexible graphite shielding material is formed of pressed flakes of pure graphite; wherein said flexible graphite shielding layer is covered with aluminum foil; and wherein the shielding is glued to the inside of the goggle frame.
Claim 3
Dependent Claim
21 words
Protective goggles against laser radiation in accordance with claim 1, wherein said shielding is in the form of a one-piece cutting.
Claim 4
Dependent Claim
13 words
Protective goggles according to claim 1 wherein said light weight frame is plastic.
References Cited (Backward Citations)
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US4511225A
Cited
US4533086A
Cited
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Cited
US4611588A
Cited
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Cited
US4703522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-05 | 1992-12-05 | 1993-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-05 | 1996-12-05 | 1997-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-05 | 2000-12-05 | 2001-06-06 | $7700.00 | Window Closed / Lapsed |