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Cloaking System Using Optoelectronically Controlled Camouflage
A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.
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| Number | Title | Issue Date |
| 4993872 | Precast concrete culvert system A precast concrete culvert system includes a series of open bottom culvert sections each having parallel spaced vertical side walls integrally connected to an arcuate top wall having a curved inner surface with a radius of curvature at least twice the ris... | 02/19/1991 |
| 4797030 | Precast concrete culvert system A precast concrete culvert system includes a series of open bottom culvert sections each having parallel spaced vertical side walls integrally connected to an arcuate top wall having a curved inner surface with a radius of curvature at least twice the ris... | 01/10/1989 |
| 4723871 | Inexpensive headwall for culverts A shell-like retainer structure is provided for forming headwalls at each extremity of a culvert disposed below a driveway. The retainer structure has two parallel spaced apart sidewalls having aligned U-shaped openings, and a transverse wall spanning the... | 02/09/1988 |
| 4713179 | Removable culvert grate A removable culvert grate for placement adjacent the inflow end of a culvert. The grate includes a vertical grate having a plurality of slats to prevent the flow of beaver workings or similar debris therethrough, and a horizontal platform extending outwar... | 12/15/1987 |
| 4687371 | Precast concrete culvert section A culvert section includes vertical parallel spaced concrete side walls integrally connected by an arcuate concrete top wall having a curved inner surface with a radius of curvature at least twice the rise defined between the top center of the curved inne... | 08/18/1987 |
| 4595314 | Precast concrete culvert section A culvert section includes vertical parallel spaced concrete side walls integrally connected by an arcuate concrete top wall having a curved inner surface with a radius of curvature at least twice the rise defined between the top center of the curved inne... | 06/17/1986 |
| 4564313 | Rectilinear culvert structure A three-sided, rectilinear bridge or culvert structure comprises a pair of vertical sidewalls set in preformed or cast in place footers or existing supports and an integral, planar, horizontal span. The footers preferably include a sidewall receiving chan... | 01/14/1986 |
| 4537529 | Earth retaining end element for use with overfilled load support structures An end element (10) retains earth overfill (E) associated to an overfilled load support structure (L) which includes an end arch element (S). The end element replaces a spandrel wall (R) and wingwalls (W), and includes a lateral extension (12) located nex... | 08/27/1985 |
| 4103495 | Flow control device for an irrigation ditch A device for controlling the flow of water between an irrigation ditch and an adjacent field. A conduit having a first end opening into the irrigation ditch and a second end opening into the field to be irrigated. The cover is pivotally attached to the fi... | 08/01/1978 |
