US PATENT SUBCLASS 184 / 75
.~.~.~.~.~ Spring-retained
Current as of:
June, 1999
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184 /
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LUBRICATION
14
DF
LUBRICATORS
{18}
65
DF
.~ Gravity feed {9}
66
DF
.~.~ Automatic cutoff {7}
*
DD
.~.~.~ Vertically reciprocating valve {4}
74
DF
.~.~.~.~ Mechanically operated {1}
75
.~.~.~.~.~ Spring-retained
DEFINITION
Classification: 184/75
The valve is caused to return to its initial position by means of a spring.