B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
347/1
B65D 90/22 (2006.01) B64F 1/36 (2006.01) B65B 3/00 (2006.01) B65D 90/28 (2006.01) G12B 17/08 (2006.01)
Patent
CA 1230664
THERMO EXPANSION COMPENSATOR ABSTRACT An explosion proof vault for housing electrical equipment is hermetically isolated from ambient air by the provision of an auxiliary expansion chamber. The auxiliary expansion chamber is coupled to the explosion proof casing and an inelastic bladder is located in the auxiliary expansion chamber in fluid communication with the explosion proof casing. An airtight seal around the mouth of the bladder prevents the passage of air between the explosion proof casing and the auxiliary expansion chamber except within the bladder.
464620
Dabic Robert M.
Fetherstonhaugh & Co.
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