Variable stroke fluid lubricant dispenser

Details Variable stroke fluid lubricant dispenser Variable stroke fluid lubricant dispenser

1977-11-18

1979-09-25

Scherbel, David A.

Dispensing

With discharge assistant

Plural

222380, F16N 312

Patent

active

041687876

ABSTRACT:
A head assembly for a fluid lubricant dispenser including a piston cavity having inlet and outlet ports disposed near the bottom of the cavity. The inlet and outlet ports are controlled by check valves that function oppositely and simultaneously to allow the flow of lubricant in one direction. The location of the inlet port and the use of a check valve in conjunction with the inlet port allows for effective operation of the lubricant dispenser with any appreciable movement of the piston via the operative lever mechanism.

REFERENCES:
patent: 259682 (1882-06-01), Gruber
patent: 379708 (1888-03-01), Long
patent: 1621172 (1927-03-01), MacKenzie
patent: 1941140 (1933-12-01), Dodge
patent: 1950782 (1934-03-01), Burt et al.
patent: 2016400 (1935-10-01), Tear
patent: 2027500 (1936-01-01), Vanderlip
patent: 2833449 (1958-05-01), Morton
patent: 3316853 (1967-05-01), Schneller

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