Lubrication – Lubricators – Belt – cable – chain or conveyor
Patent
1987-03-31
1988-05-24
Smith, Leonard E.
Lubrication
Lubricators
Belt, cable, chain or conveyor
184 29, F16N 1316
Patent
active
047459905
ABSTRACT:
A lubricant injector and apparatus for lubricating especially chain conveyor rollers where bearings; can be refilled with lubricant via a fitting onto which the injector can be pressed. The injector has a housing inlet for receiving lubricant, and an injector tip for placement on the lubricant fitting. A spring-loaded movable piston actuated with compressed air is disposed in the housing, with the injector tip connected to the movable piston. An annular gap communicating with the inlet is provided between the housing and the movable piston having a discharge side, facing the injector tip provided with a coaxially disposed cylindrical chamber. The movable piston has a bore connecting annular gap and the cylindrical chamber. A cylindrical body control piston, disposed between the control piston and the injector tip, and for a spring-loaded feed piston that serves to transfer lubricant to the injector tip is disposed in the cylindrical chamber, with play, so that a transfer passage leads from one side of the feed piston to an opposite side thereof communicating with the injector tip. The cylindrical body is disposed in the cylindrical chamber so as to leave free a preliminary control chamber communicating with the bore in the movable piston. The cylindrical body has a channel controlled by the control piston for receiving lubricant from the preliminary control chamber, and channels communicating with the aforementioned channel and the transfer passage to effect the transfer of lubricant from the inlet to the injector tip.
REFERENCES:
patent: 2886134 (1959-05-01), Simmons
patent: 3135355 (1964-06-01), Olsen et al.
patent: 3771623 (1973-11-01), Sugawara et al.
patent: 3895690 (1975-07-01), Thomson et al.
Bemba Siegfried
Saretzky Horst
De Limon Fluhme GmbH & Co.
Smith Leonard E.
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