Lubrication – Lubricators – Nipple or fitting
Patent
1974-10-15
1976-05-11
Pinkham, Richard C.
Lubrication
Lubricators
Nipple or fitting
137351, 13753311, 1375253, 141383, F01M 1104
Patent
active
039556484
ABSTRACT:
A lubrication fitting having a unique fluid flow control device mounted in an opening to prevent flow of fluid therethrough at all times except when specifically actuated to permit fluid flow therethrough. Upon actuation, the fluid flow control device automatically permits flow of lubricant into a reservoir, while at the same time automatically prevents flow of fluid out of a reservoir unless additionally actuated specifically for the purpose of withdrawing fluid from the reservoir. The fitting has a closure plug that has external threads that threadably engage the internal threads in a recess in the fitting. The recess in the fitting communicates with a passage in the fitting to form a continuous passage through the fitting for a lubricant being forced into a reservoir. The fluid flow control device is constructed so as to provide an essentially leak-free junction with the dispensing source of lubricant and may include a magnet to attract and remove ferrous metal particles from the lubricant.
REFERENCES:
patent: 884275 (1908-04-01), Haywood
patent: 2797703 (1957-07-01), Edwards
patent: 2834376 (1958-05-01), Hughes
Walker, Jr. Frank J.
Walker, Sr. Frank J.
Browne William R.
Pinkham Richard C.
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