Dual mode grease gun

Details Dual mode grease gun Dual mode grease gun

1985-05-01

1987-05-12

Rolla, Joseph J.

Dispensing

With discharge assistant

With discharge volume varying means

222256, 222288, 222309, 222383, 222409, 74522, 92 134, 92 137, 1841052, G01F 1106

Patent

active

046642986

ABSTRACT:
A hand lever operated grease gun that has both high pressure and high volume modes by changing the mechanical advantage of the lever acting on a dispensing piston. A spring biased pivotal connection between the lever and a forwardly mounted supporting link is shiftable between two positions by depression of the lever against the biasing force of the spring.

REFERENCES:
patent: 507407 (1893-10-01), Bole
patent: 1969920 (1934-08-01), Andrews
patent: 2044044 (1936-06-01), Anthony
patent: 2497762 (1950-02-01), Davis
patent: 2923443 (1960-02-01), Sundholm
patent: 3187959 (1965-06-01), Morehouse
patent: 3780830 (1973-12-01), Helgerud et al.
patent: 3789742 (1974-02-01), Hershman et al.
patent: 4560095 (1985-12-01), Shew
Lincoln Engineering Grease Gun Models 1013, 1012 & 1145, No Date, 1 page.

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