Patent · US Expired

Arrangement for holding a plurality of vertically superimposed antennas for rotary adjustment

US4491846A · kind A · utility

4Cited by

3References

3Claims

0Family size

Assignee

Salzgitter Maschinen und Anlagen Aktiengesellschaft · DE

Inventors

Heinrich Buse · Salzgitter, DE
Heinz Schmidt · Kümmersbruck, DE

Key dates

Filing date	Feb 12, 1982
Grant date	Jan 1, 1985
Priority date	—
Expiry date	Feb 12, 2002

Classification

Technology area (CPC H)Electricity
CPC primaryH01Q21/28
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

An arrangement for holding a plurality of superimposed independently turnable devices on the upper end of a vertical mast, especially antennas on an antenna mast, in which a separate rotary drive is coordinated with each of the devices, in which all the rotary drives are arranged coaxial with the mast and each including a hollow drive shaft and a stationary part, wherein the stationary part of a first rotary drive adjacent the upper end of the mast is releasably connected to one end to the latter and at the other end to a coaxial connecting tube, whereas the drive shaft of this first rotary drive is releasably connected to a tubular carrier turnably and coaxially mounted on the connecting tube and carrying one of the devices, and in which the stationary part of each following rotary drive is releasably connected at one end to the preceding connecting tube and at the other end to a further connecting tube and the drive shaft of each following rotary drive is releasably connected to a tubular carrier turnable and coaxially mounted on the further connecting tube and carrying a further device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.