Lubrication – Systems – With safety or indicating means
Patent
1975-01-15
1976-05-25
Pinkham, Richard C.
Lubrication
Systems
With safety or indicating means
184 1C, 184103A, 184 55A, 184 614, F16N 730
Patent
active
039586634
ABSTRACT:
Disclosed herein is an air line lubricator safety device for automatically actuating an air actuatable member located outside of the lubricator. The air actuatable member may be a normally open air valve in an air line leading to an air operated tool, said air valve being automatically closed when the oil level in the lubricator falls below a predetermined level and thereby prevents operation of the tool; or the air actuatable member may be a signal device such as a whistle or light or other signal automatically air actuated when the oil level in the lubricator falls below a predetermined level. The safety device comprises a lubricator having an oil bowl containing oil and air under pressure, the bowl having a head provided with a piston chamber, a float-controlled piston slidable in the chamber, an air intake passage in the head communicating with the pressurized area region of the bowl and with the piston chamber, and an air oulet tube leading from the piston chamber; said piston moving downwardly in the chamber when the oil supply falls below a predetermined level, thereby permitting pressurized air to flow through the air outlet tube for actuating one of the air actuatable members located outside of the lubricator.
REFERENCES:
patent: 2615419 (1952-10-01), Topping
patent: 2886056 (1959-05-01), Ratliff
patent: 2966295 (1960-12-01), Rayfield
patent: 3015371 (1962-01-01), Gits
patent: 3447562 (1969-06-01), Hoffman
patent: 3590955 (1971-07-01), Rau
patent: 3805922 (1974-04-01), Moore
MacGregor Bertha L.
Pinkham Richard C.
Siskind Marvin
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