US4021878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protecting glasses
Assignee: ARISARA INVESTMENT CORP
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Filing: 1975-02-04
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Granted: 1977-05-10
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Expires: 1995-02-04
Abstract
Abstract Protection glasses comprise a screen which is at least partially transparent and that has upper and lower substantially horiziontal edges. At least one movable wiping member wipingly engages at least one face of the screen and slidably engages the upper and lower edges of the screen thereby releasably to retain the wiping member in horizontal sliding engagement with the screen. The screen preferably has at least one flange along at least one of its edges to mount the wiping member. The wiping member can be in the form of a single member that embraces the screen to wipe both sides of the screen, or two members slidable on flanges along both edges of the screen. The screen can be integral with the frame of the glasses.
Inventors
- 👤 Paul Peillex
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:14
CPC Classifications
G; G02; G02C; G02C11/00; G02C11/08; A; A61; A61F; A61F9/00; A61F9/02; A61F9/029
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
173 words
Protection glasses comprising a screen which is at least partially transparent, the screen having upper and lower substantially horizontal edges, and at least one movable wiping member that wipingly engages at least one face of said screen, and means mounting said wiping member slidable to engage said upper and lower edges of said screen thereby releasably to retain said wiping member in horizontal sliding engagement with said screen, said protection glasses comprising an arcuate frame that at least partially encircles the head of the user, said screen being arcuate and integral with said frame, there being a said wiping member on each side of said screen thereby to wipe both the inner and the outer faces of said screen, said screen having at least one flange along at least one said horizontal edge thereof, said wiping member having a flange that engages with said screen flange, said screen flange defining with an edge portion of said screen an outwardly opening arcuate horizontal trough, said wiping member flange being slidably seated in said trough.
Claim 2
Dependent Claim
173 words
Protection glasses comprising a screen which is at least partially transparent, the screen having upper and lower substantially horizontal edges, and at least one movable wiping member that wipingly engages at least one face of said screen, and means mounting said wiping member slidable to engage said upper and lower edges of said screen thereby releasably to retain said wiping member in horizontal sliding engagement with said screen, said protection glasses comprising an arcuate frame that at least partially encircles the head of the user, said screen being arcuate and integral with said frame, there being a said wiping member on each side of said screen thereby to wipe both the inner and the outer faces of said screen, said screen having at least one flange along at least one said horizontal edge thereof, said wiping member having a flange that engages with said screen flange, said screen flange defining with an edge portion of said screen an outwardly opening arcuate horizontal trough, said wiping member flange being slidably seated in said trough.
Claim 3
Dependent Claim
15 words
Protection glasses as claimed in claim 1, said wiping members being separate from each other.
Claim 4
Dependent Claim
26 words
Protection glasses as claimed in claim 1, said wiping members being both mounted in a common frame for simultaneous movement along both sides of said screen.
Claim 5
Dependent Claim
29 words
Protection glasses as claimed in claim 1, said screen having flanges along both of said horizontal edges thereof, said wiping member having flanges that engage with said screen flanges.
Claim 6
Dependent Claim
37 words
Protection glasses as claimed in claim 1, said wiping member comprising a member that embraces said upper and lower edges of said screen and that has a pad of wiping material between said member and said screen.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |