Dispensing – Plural sources – compartment – containers and/or spaced jacket – With discharge assistant for each source
Patent
1977-04-20
1978-10-24
Reeves, Robert B.
Dispensing
Plural sources, compartment, containers and/or spaced jacket
With discharge assistant for each source
222386, 92243, 128218P, B67D 552
Patent
active
041217390
ABSTRACT:
A dispenser for precisely metering viscous fluids from a cartridge. The dispenser includes a cartridge body and a plunger having a piston head at its extremity. The plunger is unitarily configured from a plastic material, including seal rings in the piston head. Each piston head including two such seal rings axially spaced from one another and configured to include sharp peripheral edges permitting resilient wedging contact within the bore of the cartridge.
REFERENCES:
patent: 3766918 (1973-10-01), Kessel
patent: 3827602 (1974-08-01), Nicholls
patent: 3828980 (1974-08-01), Creighton et al.
Call Robert Francis
Devaney William David
Beart Robert W.
Buckman Thomas W.
Illinois Tool Works Inc.
Marmor Charles A.
Reeves Robert B.
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