Patent US4398426A successfully refreshed from Google Patents.
US4076374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for maintaining visibility in the use of mirrors subject to aqueous deposits
Assignee: Individual
•
Filing: 1976-07-14
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Granted: 1978-02-28
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Expires: 1996-07-14
Abstract
Abstract In an environment in which a transparent glass member, or in which a mirror, is apt to become coated by condensate or water splashes that interfere with clear visibility of an object or image, means are provided for preventing obscuration. A device is provided which includes a continuously flowing film of a transparent, aqueous fluid across the face of the transparent member or mirror. By using a flowing film, no condensate or water splashed on the transparent member or the mirror renders it impossible for use. It is made possible, for example, to shave while taking a hot shower, or to see clearly out of doors through windows that otherwise become cloudy by formation of condensate.
Inventors
- 👤 Robert E. Schwab
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:24
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/18; G02B7/181; G02B7/1815; A; A47; A47G; A47G1/00; A47G1/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
126 words
Means including a surface-coating device and a mirror member having an exposed exterior surface and an upper edge inclined toward said surface, for preventing obscuration of an image due to condensation of vapor and splashing of water on the exposed surface of said mirror member, and including means for applying water to an upper level of said surface while in vertical position and for forming a flowing film of water on said surface, means for withdrawing water from said film at a lower level of said surface, means for returning the water to said water-applying means at said upper level, a strip of sponge material adjacent said water-applying means at said upper level, the said strip having a side edge against the edge of said member.
Claim 2
Dependent Claim
126 words
Means including a surface-coating device and a mirror member having an exposed exterior surface and an upper edge inclined toward said surface, for preventing obscuration of an image due to condensation of vapor and splashing of water on the exposed surface of said mirror member, and including means for applying water to an upper level of said surface while in vertical position and for forming a flowing film of water on said surface, means for withdrawing water from said film at a lower level of said surface, means for returning the water to said water-applying means at said upper level, a strip of sponge material adjacent said water-applying means at said upper level, the said strip having a side edge against the edge of said member.
Claim 3
Dependent Claim
34 words
Means, as set forth in claim 1, including means compressing said sponge material to control the rate of flow of water for maintaining the formation of the said film with minimum or no distortion.
Claim 4
Dependent Claim
74 words
Apparatus comprising a mirror having means for supporting it in substantially vertical position, a trough for introducing water therefrom to an edge of the mirror, the said trough having a slit in the bottom thereof for forming a water film on the said mirror, a sponge in the bottom of the trough over the said slit, and a screen in position over the said sponge, said screen pressing against the top of said sponge.
Claim 5
Dependent Claim
74 words
Apparatus comprising a mirror having means for supporting it in substantially vertical position, a trough for introducing water therefrom to an edge of the mirror, the said trough having a slit in the bottom thereof for forming a water film on the said mirror, a sponge in the bottom of the trough over the said slit, and a screen in position over the said sponge, said screen pressing against the top of said sponge.
Claim 6
Dependent Claim
17 words
Apparatus, as set forth in claim 3, in which the said screen comprises a perforated solid plate.
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) | 1981-02-27 | 1981-08-29 | 1982-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-27 | 1985-08-29 | 1986-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-27 | 1989-08-29 | 1990-02-28 | $7700.00 | Window Closed / Lapsed |