US4156033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal camouflage
Assignee: United States Department of the Army
•
Filing: 1978-02-23
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Granted: 1979-05-22
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Expires: 1998-02-23
Abstract
Abstract A method of camouflaging infrared targets is provided by coating the targetith a layer of foam plastic which is randomly varied in thickness or density and color.
Inventors
- 👤 Earl F. Bienz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:21
CPC Classifications
F; F41; F41H; F41H3/00; Y; Y10; Y10S; Y10S428/00; Y10S428/919; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/24512; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/24999
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
67 words
The method of camouflaging an infrared target device having a characteristic IR image from electronic viewers comprising the steps of: monitoring the image of said target device through a thermal viewer; and simultaneously applying a foamed plastic to said device in a manner which varies said plastic randomly in its insulating effect over the surface thereof and reduces said image to a plurality of indistinguishable hot spots.
Claim 2
Independent Claim
67 words
The method of camouflaging an infrared target device having a characteristic IR image from electronic viewers comprising the steps of: monitoring the image of said target device through a thermal viewer; and simultaneously applying a foamed plastic to said device in a manner which varies said plastic randomly in its insulating effect over the surface thereof and reduces said image to a plurality of indistinguishable hot spots.
Claim 3
Dependent Claim
26 words
The method according to claim 1 further including the step of: coloring said plastic a variety of colors in random sequence while it is being applied.
Claim 4
Dependent Claim
24 words
The method according to claim 2 wherein: said foamed plastic is applied by spraying and randomly selected pigments are added during the spraying operation.
Claim 5
Dependent Claim
16 words
The method according to claim 1 wherein; said plastic is applied in layers of random thickness.
Claim 6
Dependent Claim
18 words
The method according to claim 1 wherein the density of said plastic is varied as it is applied.
References Cited (Backward Citations)
US3870540A
Cited
US3963847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-21 | 1982-11-20 | 1983-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-21 | 1986-11-20 | 1987-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-21 | 1990-11-20 | 1991-05-22 | $7700.00 | Window Closed / Lapsed |