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Class 342/403 - With circular array of antennas


Subclass of Class 342 - Communications: directive radio wave systems and devices (e.g., radar, radio navigation)
Definition: Subject matter wherein the antennas are arranged in a ring
No. of patents: 4
Last issue date: 09/04/2001


NumberTitleIssue Date
6283454Apparatus for fence repair and construction
The present invention is a trailer for the repair and construction of fences used for example, to enclose farmland or livestock on a ranch. The trailer is a fully self-contained fencing apparatus which can be conveyed by various vehicles capable of traver...
09/04/2001
6229473Arrangements for the one-dimensional or multi-dimensional determination of the position of a load suspension point in hoists
The stopping of a load suspended from a crane requires a swing control or, respectively, a swing damping. Upon employment of microwave measuring units, spacings between a carrying cable suspension and a load suspension point are determined on the basis of...
05/08/2001
6094166Conical omni-directional coverage multibeam antenna with parasitic elements
An omni directional coverage multibeam antenna relief on a ground surface having simple conical shapes to provide beam steering is disclosed. One advantage of such a system is that the projected area is always constant and broadside to the intended direct...
07/25/2000
4745411Digital gain adjustment
A cathode ray tube (CRT)/deflection coil assembly is provided which includes a signature resistor for indicating the deflection sensitivity of the deflection coil. An amplifier circuit with an adjustable gain supplies current to the deflection coil. A gai...
05/17/1988
 
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