Voltage surge protector having a pressure release mechanism
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United States of America Patent
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Sep 6, 2016
Grant Date -
Nov 26, 2015
app pub date -
Aug 1, 2012
filing date -
Aug 1, 2011
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A voltage surge protector consisting of a plurality of varistors connected in a column, an upper electrode connected to the upper edge of the column of varistors, a lower electrode connected to the lower edge of the column of varistors, an insulating housing that surrounds the column of varistors, a fiberglass cover that surrounds the insulating housing and a weatherproof protective cover provided with barriers mounted on the fiberglass cover. The protector has a mechanism to release pressure during a voltage surge, which consists of a hole in a transversal direction for each varistor of the column of varistors inside the insulating housing, the holes being helicoidally distributed along the length of the housing of insulating material and of a depth less than the thickness of the insulating housing.
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