US4528229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camouflage material for use as protection against radar observation
Assignee: CAMTEX Inc
•
Filing: 1984-03-05
•
Granted: 1985-07-09
•
Expires: 2004-03-05
Abstract
Abstract A camouflage material, preferably in the form of a camouflage mat, for use as protection against radar observation, comprises a support layer (1) with filament or threadlike pieces, which affect radar waves, for example carbon or metal thread. With a view to optimal protection against radar observation, these substances are applied to the support layer (1) with arbitrarily mutual directions and positions and with random spatial orientations and distribution.
Inventors
- 👤 Willi Gottlieb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:57
CPC Classifications
F; F41; F41H; F41H3/00; F41H3/02; D; D06; D06N; D06N7/00; H; H01; H01Q; H01Q17/00; H01Q17/002; D06N2201/00; D06N2201/08; D06N2201/085; Y; Y10; Y10S; Y10S428/00; Y10S428/919; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/23986
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
78 words
A camouflage material for use as multi-spectral camouflage including protection against radar observation, comprising a layered backing material with a pile of textile or synthetic fibres or loops preferably of unequal lengths and extending in different directions, said fibres or loops being fixed to the support backing material; filament or threadlike pieces, which affect radar waves applied to the camouflage material's unshielded free upper surface with arbitrarily mutual directions and positions and with random spatial orientations and distribution.
Claim 2
Dependent Claim
78 words
A camouflage material for use as multi-spectral camouflage including protection against radar observation, comprising a layered backing material with a pile of textile or synthetic fibres or loops preferably of unequal lengths and extending in different directions, said fibres or loops being fixed to the support backing material; filament or threadlike pieces, which affect radar waves applied to the camouflage material's unshielded free upper surface with arbitrarily mutual directions and positions and with random spatial orientations and distribution.
Claim 3
Dependent Claim
35 words
A camouflage material as claimed in claim 1, in which the filament or threadlike pieces, that affect radar waves, are strewn randomly over the pile and fixed to it with a binder such as glue.
Claim 4
Dependent Claim
33 words
A camouflage material as claimed in claim 1, in which filament or threadlike pieces, that affect radar waves, are spun into the material, such as yarn or synthetic fibre, which constitutes the pile.
Claim 5
Dependent Claim
25 words
A camouflage material as claimed in claim 1 in which the fibres or loops are fixed to the backing material by weaving, embedding or tufting.
Claim 6
Dependent Claim
29 words
A camouflage material as claimed in claim 1 in which the filament or threadlike pieces which affect radar waves is carbon or metal threads or metal coated synthetic fibres.
Claim 7
Dependent Claim
69 words
In a multi-spectral camouflage mat having a backing material with pile fibres projecting from the outer surface of said mat the improvement comprising: said pile comprising textile or synthetic fibres or loops of unequal length projecting from said backing material in randomly different directions, and a plurality of filaments or threadlike pieces of a material which affects radar waves applied to the pile in random spatial orientation and direction.
Claim 8
Dependent Claim
69 words
In a multi-spectral camouflage mat having a backing material with pile fibres projecting from the outer surface of said mat the improvement comprising: said pile comprising textile or synthetic fibres or loops of unequal length projecting from said backing material in randomly different directions, and a plurality of filaments or threadlike pieces of a material which affects radar waves applied to the pile in random spatial orientation and direction.
Claim 9
Dependent Claim
20 words
The mat of claim 6 in which the pile is secured to the backing material by weaving, embedding or tufting.
Claim 10
Dependent Claim
23 words
The mat of claim 6 in which the material which affects radar waves is carbon or metal threads or metal coated synthetic fibres.
Claim 11
Dependent Claim
21 words
The mat of claim 6 in which the material which affects radar waves is spun into the material of the pile.
References Cited (Backward Citations)
US1939846A
Cited
US3187331A
Cited
US3069796A
Cited
US3332828A
Cited
US3733606A
Cited
US3599210A
Cited
GB1404121A
Cited
US4001827A
Cited
US4034375A
Cited
US4287243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-08 | 1989-01-07 | 1989-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-08 | 1993-01-07 | 1993-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-08 | 1997-01-07 | 1997-07-09 | $7700.00 | Window Closed / Lapsed |