Dual mode pistol-grip grease gun

Details Dual mode pistol-grip grease gun Dual mode pistol-grip grease gun

1993-05-11

1994-01-11

Huson, Gregory L.

Dispensing

With discharge assistant

Plural

222287, 222309, 222383, 1841052, G01F 1100

Patent

active

052773396

ABSTRACT:
A dual mode pistol grip grease gun that operates in either the volume mode or the pressure mode. The grease gun comprises a cylinder head, which has a handle fixed to it. Attached to the handle via a shiftable link is a lever, which has a U-shaped slot disposed at one end. The shiftable link is disposed in the U-shaped slot of the lever, and its position therein defines whether the grease gun is in the volume or the pressure mode. Rotatably attached to the lever is a piston, which enters the cylinder head when the lever is depressed. A stop disposed in the lever that rests against the piston keeps the span between the lever and the handle the same for both the volume and pressure modes.

REFERENCES:
patent: D295599 (1989-05-01), Shew
patent: 705645 (1902-07-01), Caswell
patent: 1377023 (1992-05-01), Nelson
patent: 1619126 (1927-03-01), Hundemer
patent: 1905878 (1933-04-01), Albertine
patent: 2497762 (1950-02-01), Davis
patent: 4168787 (1979-09-01), Stamper
patent: 4664298 (1987-05-01), Skew

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