Subterranean transformer enclosure vent

Details Subterranean transformer enclosure vent Subterranean transformer enclosure vent

1993-08-23

1994-05-17

Joyce, Harold

Ventilation

Exterior vault or manhole cover

454275, 454367, F24F 700

Patent

active

053122950

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.

REFERENCES:
patent: 140707 (1873-07-01), Hyatt
patent: 436084 (1890-09-01), Jacobs
patent: 809617 (1906-01-01), Jackson
patent: 1131078 (1915-03-01), Pickles
patent: 1197352 (1916-09-01), Darroch
patent: 1199664 (1916-09-01), Chambley
patent: 4880594 (1989-11-01), Fui

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