Dispensing – With discharge assistant – Plural
Patent
1996-01-16
1997-11-11
Derakshani, Philippe
Dispensing
With discharge assistant
Plural
222333, G01F 1120
Patent
active
056854625
ABSTRACT:
An improved drive system for an extruding apparatus. A piston is mounted for reciprocal movement within a cylinder and moves between a power stroke wherein fluid is extruded from the cylinder and a return stroke wherein fluid is allowed to enter the cylinder. The piston is moved by a throw mounted to a crank. The plane of the axis of the crank is offset from the plane of movement of the piston within the cylinder. The plane of movement of the throw axis is parallel to the plane of movement of the piston during at least a portion of the power stroke of the piston. The throw is circular and the force exerted on the pistons by the throw during the portion of the power stroke is parallel to both planes of movement of the pistons thereby to avoid any sidewise and unequal loading on either one of the pistons.
REFERENCES:
patent: 1858155 (1932-05-01), Harris
patent: 1905913 (1933-04-01), Kopp
patent: 1956144 (1934-04-01), Brown
patent: 1975311 (1934-10-01), Creveling
patent: 2461332 (1949-02-01), Leonard
patent: 4257540 (1981-03-01), Wegmann et al.
patent: 5404967 (1995-04-01), Barry
patent: 5544791 (1996-08-01), Chih
Lincoln Product Bulletin "Pistol Grip Grease Gun", Copyright 1987, printed in U.S.A.
Derakshani Philippe
Power B International Inc.
Uren John R.
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