Electricity: conductors and insulators – Underground – Distributing and/or combined with overhead
Reexamination Certificate
2000-03-01
2001-11-13
Reichard, Dean A. (Department: 2831)
Electricity: conductors and insulators
Underground
Distributing and/or combined with overhead
C174S039000, C052S003000, C361S310000
Reexamination Certificate
active
06316722
ABSTRACT:
BACKGROUND OF THE INVENTION
This application relates to the art of pedestals and, more particularly, to pedestals for supporting housings in which electronic components and connectors are located. The invention is particularly applicable for use in supporting a ventilated housing that encloses electronics and connectors for fiber optic cables, and will be described with specific reference thereto. However, it will be appreciated that the invention has broader aspects and can be used for supporting other types of ventilated housings.
Pedestals and housings of the type described commonly are installed in residential areas where they are exposed to the weather, windblown debris, leaves and grass clippings. Ventilation of the housing is desirable to cool electronic components and to minimize condensation of moisture. It would be desirable to have a pedestal and housing arrangement that provides good air flow while minimizing the possibility that the air intake vents will become blocked or permit the entry of moisture and debris.
SUMMARY OF THE INVENTION
A hollow pedestal has top and bottom ends, a vertical passage, a peripheral wall, an outer periphery and a longitudinal axis. An inwardly extending recess in the peripheral wall adjacent the top end has a downwardly facing inclined recess top wall and a recess bottom wall. The downwardly facing inclined recess top wall has vent openings therein for providing inflow of ventilation air which travels upwardly through a housing that is supported on the pedestal. The recess bottom wall is curved to enhance intake and upward flow of air, and to minimize accumulation of debris within the recess.
In a preferred arrangement, the recess top wall slopes downwardly from the pedestal outer periphery at an angle less than 30°. In a most preferred arrangement, this angle has been approximately 22°. With this arrangement, the vertical component of the inclined recess upper wall and the air intake vent openings therein is very small to minimize the possible entry of grass clippings, windblown debris, or windblown rain and snow.
The recess bottom wall preferably is curved and slopes downwardly to intersection with the outer periphery of the pedestal so that any moisture or debris falling thereon will be removed by gravity or wind forces, or by vibration of the pedestal due to wind forces.
The pedestal preferably has opposite external vertical channels therein through which cables may extend for supplying communications services to a residence. At least the upper portions of the vertical external channels are closed by cover plates that also have vent openings therein and match the configuration of the pedestal periphery including the ventilation recesses.
It is a principal object of the present invention to provide an improved hollow support pedestal having vent openings therein for providing flow of air into the pedestal and upwardly through a housing supported on the pedestal.
It is also an object of the invention to provide a pedestal having vent openings located in a recess that is shaped to minimize the possibility of the vent openings becoming blocked by windblown debris or grass clippings.
It is another object of the invention to provide a pedestal with vent openings located in a recess that is shaped to enhance the flow of air into the vent openings.
It is a further object of the invention to provide a pedestal with vent openings that are located in a manner that minimizes the possibility of windblown rain or snow from entering the vent openings.
REFERENCES:
patent: 3604835 (1971-09-01), Hamilton
patent: 5978217 (1999-11-01), Kerrigan et al.
patent: 6198041 (2001-03-01), Leschinger et al.
patent: 815337 (1959-06-01), None
patent: 1243966 (1971-08-01), None
Low Andrew Gordon
Perry Joseph C.
Marconi Communications Inc.
Patel Dhirv R
Reichard Dean A.
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