F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/65
F16K 15/00 (2006.01)
Patent
CA 1088400
ABSTRACT OF THE DISCLOSURE A pressure relief valve for attachment to a tank, such as used on an electrical transformer, which valve will release excessive gas pressure developed in the tank because of transformer malfunction. The valve has a cap which uncovers a signal indicating portion of the valve when the valve is un- seated during a pressure release operation. The cap remains in signal uncovered position, after the valve reseats, to warn maintenance personnel that the tank has had an excessive pres- sure condition.
309862
Fetherstonhaugh & Co.
Qualitrol Corporation
LandOfFree
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