Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1990-05-30
1992-02-11
Ryan, Patrick J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428220, 428323, 428402, 428457, 428913, 40454, 40582, 40612, 40615, B32B 900
Patent
active
050875086
ABSTRACT:
Signs comprising an outer layer having indicia thereon and a thermal reservoir behind the outer layer. The thermal reservoir contains at least one phase change material that, during periods of falling ambient temperature, yields a latent heat of transition thereby tending to maintain the temperature of the outer layer above what it would otherwise have been. As a result of such higher temperature, the outer layer of the sign is more resistant to formation of dew or frost thereon and retains a greater degree of legibility.
REFERENCES:
patent: 3356828 (1965-04-01), Furness
patent: 4259198 (1981-03-01), Kreibich et al.
patent: 4487856 (1984-12-01), Anderson et al.
patent: 4504402 (1985-03-01), Chen et al.
patent: 4505953 (1985-03-01), Chen et al.
patent: 4513053 (1985-04-01), Chen et al.
patent: 4522966 (1985-06-01), Funaki et al.
patent: 4587279 (1986-05-01), Salyer et al.
patent: 4594379 (1986-06-01), Funaki et al.
patent: 4642266 (1987-02-01), Funaki et al.
patent: 4708812 (1987-11-01), Hatfield
patent: 4726134 (1988-02-01), Woltman
patent: 4755425 (1988-07-01), Huang
patent: 4756958 (1988-07-01), Bryant et al.
patent: 4844976 (1989-07-01), Huang
Woltman, H. L., "A Study of Dew and Frost Formation on Retro-Reflectors", Highway Research Record No. 70, National Academy of Sciences, 1965.
Griswold Gary L.
Jordan Robert H.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Ryan Patrick J.
LandOfFree
Dew and frost resistant signs does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dew and frost resistant signs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dew and frost resistant signs will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-781191