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Vibration and Earthquake Isolation

Antenna-support

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Antenna support

Details

Inventors: Damiano, Armand A.;
Assignee: Valmont Industries, Inc. (Valley, NE)
Primary Examiner: Friedman; Carl D.
Assistant Examiner: Thissell; Jennifer I.
Attorney, Agent or Firm: Thomte, Mazour & Niebergall, Thomte; Dennis L.

An antenna support for a power transmission tower having a vertically disposed mast extending upwardly through the tower with the antenna support being mounted on the upper end of the mast. The weight of antenna support is transferred to the legs of the tower rather than to the mast through the use of support bracing extending between the elongated pipe and the tower. An antenna platform is mounted on the upper end of the mast with the weight thereof being supported by the elongated pipe. The platform is comprised of three triangular-shaped platform sections having mounting rings at the inner ends thereof which are slipped over the upper end of the mast with the lowermost mounting ring resting upon the upper end of the elongated pipe. The antenna support may be mounted on a cellular transmitting/receiving tower or on a guy-wired mast.

DETAILED DESCRIPTION An antenna support is disclosed which may be used with an electrical power transmission tower, a cellular telephone transmission/receiving tower, or a vertically disposed mast.
When the antenna support of this invention is used on an electrical power transmission tower, a vertically disposed mast is positioned between the legs of the tower with the mast being connected to the legs or lattice braces of the tower to provide lateral stability to the mast.
An elongated pipe is positioned below the upper end of the mast and embraces the same.
The elongated pipe is operatively secured to the legs of the tower by means of support bracing secured to and extending therebetween so that the tower supports the weight of the elongated pipe.
The antenna support includes three triangular-shaped platform sections which have mounting rings at their inner ends which rest upon and are supported by the upper end of the elongated pipe.
The positioning of the mounting rings on their respective platform sections is such that the mounting rings are stacked one upon the other.
The platform sections are comprised of a lightweight composite material such as fiberglass reinforced plastic (FRP).
Means is provided for preventing the rotation of the platform sections with respect to the elongated pipe.
Antennas are secured to the outer ends of the platform sections.
If the antenna support is being used on a conventional cellular telephone transmission/receiving tower, the platform sections are secured to the tower legs by support bracing so that the weight of the antenna support is borne by the tower rather than the mast.
The antenna support is mounted on the mast as in the electrical power transmission tower embodiment.
The antenna support may also be mounted on a guy-wired mast.
A principal object of the invention is to provide a unique antenna support for use on an electrical power transmission tower, a conventional cellular telephone transmission/receiving tower, or a guy-wired mast.
A further object of the invention is to provide an antenna support including lightweight platform sections

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