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US 5,312,295 AGranted
Subterranean transformer enclosure vent
OwnerJames E. Younginventor
Life of this patent
Estimating the term…
Abstract
A heat venting system for subterranean transformer enclosures for sidewalks or streets includes a vent guard that passes air but prevents solids and fluids such as destructive oil from dropping upon the transformers. Used in connection with a vent plate having very many small holes will prevent leaves and sticks from clogging the vent and destroying the transformers.
Claims7
In a subterranean transformer enclosure having at least two ceiling joists for supporting a metal air vent plate, a vent guard for preventing liquids and solids from passing down through the guard and for enabling air to pass through the guard, said vent guard comprising:
- a non-conductive structure having two side walls joined at an apex in a generally "V" cross sectional configuration with interior surfaces and exterior surfaces, said structure being suspendable from between the two ceiling joists;
- at least one slot in said side walls above said apex and parallel therewith;
- and
- a roof within the interior of said structure and covering said slot, said roof being inclined to form a pool between said roof and a side wall of said structure, said roof extending over said slot so that liquids gathered in said pool will overflow into said apex;
- said vent plate having a plurality of holes therethrough in an area over said vent guard.
2 more elements
Dependencies are inferred from the claim text.