Injection lubricator controlled by counting mechanism

Details Injection lubricator controlled by counting mechanism Injection lubricator controlled by counting mechanism

1980-01-28

1982-04-13

Brown, David H.

Lubrication

Lubricators

Force feed

184 7D, 184 55A, 184 56A, F16N 1316

Patent

active

043243169

ABSTRACT:
In a lubricator which employs an injection pump connected with an air line to a tool by a branch air line through which pulses of air under pressure are transmitted to the pump for operating the same, a pulse counting mechanism interposed in the branch air line and including a first valve which opens the branch air line for operating the pump after each series of pulses of a predetermined number. The first valve carries a check valve operable to relieve the pressure of air trapped in the pump incidental to closing of the branch air line.

REFERENCES:
patent: 2063352 (1936-12-01), Stewart
patent: 3731763 (1973-05-01), Thrasher et al.
patent: 3926279 (1975-12-01), Thrasher et al.
patent: 4105095 (1978-08-01), Thrasher
patent: 4125176 (1978-11-01), Thrasher

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