Waterproof box-like casing

Details Waterproof box-like casing Waterproof box-like casing

1994-02-16

1997-05-13

Sough, Hyung S.

Electricity: conductors and insulators

With fluids or vacuum

With expansion and contraction means

174 17VA, H05K 506

Patent

active

056294956

ABSTRACT:
A waterproof box-like casing including, a box-like body having an opening, a lid for closing the opening and having a communication hole, and a bulkhead member for covering the communication hole hermetically. The communication hole provides communication between the inside and outside of the box-like body. Furthermore, the bulkhead member expands volume when the air inside of the waterproof box-like casing expands because of thermal expansion and contracts volume when the air inside of the waterproof box-like casing contracts because of thermal contraction.

REFERENCES:
patent: 3123784 (1964-03-01), Ritz
patent: 3670276 (1972-06-01), Theodore

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