US4200360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter for protection against radiation, especially with regard to direct pigmentation by solar radiation
Assignee: Individual
•
Filing: 1977-03-11
•
Granted: 1980-04-29
•
Expires: 1997-03-11
Abstract
Abstract A radiation shield for promoting direct pigmentation of human skin by solar radiation comprising a filter made from a plurality of layers of synthetic plastic, e.g., polyester or inorganic glass, each filtering different ranges of wave lengths. Substantially all wave lengths below 320 nm and above 450 nm are filtered out so that rapid tanning of the skin is effected without burning.
Inventors
- 👤 Maxim F. Mutzhas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:19
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/52; A; A61; A61N; A61N5/00; A61N5/06; A61N5/0613; A61N5/0614; C; C09; C09K; C09K11/00; C09K11/08; C09K11/66; C09K11/666; G; G02; G02B; G02B5/00; G02B5/20; G02B5/208; H01J61/38; A41; A41D; A41D2400/00; A41D2400/26; A61N2005/0615; A61N2005/0664; A61N2005/0667; A61N5/062; Y; Y10; Y10S; Y10S522/00; Y10S522/91; Y10S522/913
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
74 words
A radiation shield for promoting direct pigmentation of human skin by solar radiation comprising a solid translucent material including finely ground inorganic filter glass particles, which filter glass normally and also when included as said particles in combination with said solid translucent material filters out all wave lengths shorter than 320 nm, blocks wave lengths over 450 nm and which permits maximum transmission of wave lengths in the range of 320 to 450 nm.
Claim 2
Dependent Claim
74 words
A radiation shield for promoting direct pigmentation of human skin by solar radiation comprising a solid translucent material including finely ground inorganic filter glass particles, which filter glass normally and also when included as said particles in combination with said solid translucent material filters out all wave lengths shorter than 320 nm, blocks wave lengths over 450 nm and which permits maximum transmission of wave lengths in the range of 320 to 450 nm.
Claim 3
Dependent Claim
27 words
The shield of claim 1 in which said solid translucent material comprises a plurality of spatially-separated layers, each effective to filter a different range of wave lengths.
Claim 4
Dependent Claim
17 words
The shield of claim 1 in which said solid translucent material is made of synthetic organic material.
Claim 5
Dependent Claim
17 words
The shield of claim 3 wherein said solid material is coated with absorption layers and reflection layers.
Claim 6
Dependent Claim
18 words
The shield of claim 4 in which said layers contain complementary color pigments to correct the coloring position.
Claim 7
Dependent Claim
27 words
The shield of claim 3 including wave-length-absorbing material comprising glass granules pressed into the surface of said solid translucent material, the latter being a synthetic organic resin.
Claim 8
Dependent Claim
19 words
The shield of claim 6 in which said granules are coated with an additional layer of inorganic filtering material.
Claim 9
Dependent Claim
22 words
The shield of claim 3 in which wave length absorbing material is distributed throughout said solid translucent material as colloidal size particles.
Claim 10
Dependent Claim
20 words
The shield of claim 8 in which said wave-length-absorbing material consists of ground blue-violet glass incorporated in synthetic organic material.
Claim 11
Dependent Claim
33 words
The shield of claim 1 in which said solid translucent material is synthetic organic material containing finely ground inorganic glass particles coated with an adhesive to promote intimate mixing with the organic material.
Claim 12
Dependent Claim
20 words
The shield of claim 10 in which said adhesive is deposited from a carrier comprising alcohol, acetic acid and water.
Claim 13
Dependent Claim
13 words
The shield of claim 10 in which said adhesive is a silicon finish.
References Cited (Backward Citations)
US3126295A
Cited
GB551474A
Cited
US2444976A
Cited
US2964427A
Cited
US3112490A
Cited
US3104176A
Cited
US3298959A
Cited
US3269267A
Cited
US3398040A
Cited
US3483871A
Cited
US3718533A
Cited
DE2335423A1
Cited
DE2457572A1
Cited
US4095113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-29 | 1983-10-29 | 1984-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-29 | 1987-10-29 | 1988-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-29 | 1991-10-29 | 1992-04-29 | $7700.00 | Window Closed / Lapsed |