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Optical device for non-contact recording
The present invention is directed to providing an optical device, which is an economical facsimile apparatus and requires a minimum space requirement, which is ...
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Highly decoupled cosited antennas
It is the primary object of the present invention to provide high interantenna isolation between closely spaced antennas. A related object of the invention is to obtain ...
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Apparatus for circularly polarized radiation from surface wave transmission line
With reference to FIG. 1, in one type of RF transmission and radiation system that can advantageously employ the invention, a surface wave transmission line 10 is ...
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Circularly-polarized antenna system using tilted dipoles
What is claimed is: 1. An omnidirectional circular polarization antenna system comprising: a plurality of dipoles equally spaced from one another about a conductive ...
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Method for producing a steel strip having an excellent phosphate-coating property
We claim: 1. A method for producing a steel strip having one steel surface thereof exhibiting an excellent phosphate-coating property and the other surface thereof ...
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Sequential tone acoustic command link
The receiver portion includes a transducer means which is responsive to the acoustically transmitted multi-tone code signal for providing a corresponding electrical ...
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Antenna arrangement for a radar surveillance method for target locating with altitude acquisition
The object of the present invention is to provide an antenna arrangement for a radar surveillance method for target locating having altitude acquisition which makes do ...
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Cross slot omnidirectional antenna
What is claimed is: 1. An antenna for radiating radio frequency energy at preselected frequency comprising: a hollow member having thin conductive walls, said member ...
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Fireproof covering
The object of this invention is to provide a fireproof covering, which is less expensive to manufacture and easier to fit and install, but which nevertheless protects ...
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Skin-shaped product of aminoplast resin mixture and fibrous material
We claim: 1. Skin-shaped product comprising an aminoplast resin mixture which is the reaction product of an amino compound with formaldehyde and further including ...
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