Porthole apparatus and method of installation

Details Porthole apparatus and method of installation Porthole apparatus and method of installation

2007-06-26

2007-06-26

Phan, Tho (Department: 2821)

Static structures (e.g., buildings)

Preassembled subenclosure or substructure section of unit or...

C052S265000, C052S268000, C052S745050, C052S079100, C052S079700, C052S079900

Reexamination Certificate

active

11282292

ABSTRACT:
The instant invention is a metallic device or porthole for use with communication antenna supporting structure, such as monopoles. The porthole of the instant invention includes an integrally connected backing bar that following the method of installation meets proper welding requirements.

REFERENCES:
patent: 5755062 (1998-05-01), Slater
patent: 6026975 (2000-02-01), Slater
patent: 6910427 (2005-06-01), Woodall et al.
Coberly et al; Standard Operating Procedure for Installation of Portholes in Monopoles, B&C Contracting Company (complete document), no date available.

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