Lubrication – Safety alarm or indicating means
Patent
1989-09-14
1990-10-16
Lazarus, Ira S.
Lubrication
Safety alarm or indicating means
184 64, 184107, 184 611, 137498, 200 82E, 340679, 340686, 417 13, F01M 118
Patent
active
049628313
ABSTRACT:
Fires caused by the leakage of lubricating oil spraying under pressure from lubricating oil conduits feeding bearings are controlled by stopping the flow of the lubricating oil in response to greater than normal flow of the oil through the conduit and simultaneously shutting down the machine having the bearing to which the oil is fed. A valve mounted in each conduit includes a valve element movable in response to the greater than normal flow through the conduit from a first position, to which it is biased and in which it is spaced from a valve seat, to a second position in which it engages the valve seat. A magnet mounted on the valve element actuates a magnetically operated switch connected in a circuit for shutting down the machine when the valve element moves at least part way from the first position to the second position. An alarm is activated as the machine is being shut down.
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"Excess Flow Valves", Chem-Tec Equipment Company, 1 sheet.
Cariaso Alan B.
Factory Mutual research
Lazarus Ira S.
LandOfFree
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