Patent ID: 7980755
Filing Date: 2011-07-19
Classification: B01F

Abstract:
1. A method for mixing additive into viscous base material, which base material is contained in a cylindrical tube having a longitudinal axial dimension, a filler end sealed with a removable back plug which has been pushed into said filler end, and further having a dispensing end sealed with a puncturable seal, said tube providing a mixing cavity for said base material and additive, said method comprising; a) removing said back plug from said filler end of said tube, b) adding a measured amount of additive into said cavity thru said filler end to provide a batch for mixing, c) providing a mixing device having a mixer head adapted to be affixed onto said filler end of said tube and hermetically seal said cavity at said filler end, said device further having a mixer shaft having a mixing end portion provided with an apertured impeller affixed to said end portion for reciprocation therewith and adapted to extend into said cavity said shaft further having an operating end portion adapted to extend axially outwardly of said tube and to be engaged by hand or machine for reciprocating said shaft, said shaft being axially reciprocably mounted through a hermetic seal affixed in an aperture provided thru said mixer head; d) inserting said mixing end portion of said shaft with said impeller down into said cavity and into said batch to a desired initial longitudinal position in said cavity; e) affixing said mixer head onto said filler end to hermetically seal said cavity; and f) reciprocating said shaft with said impeller within said cavity between said filler end and said dispensing end whereby said additive is intimately mixed into said base material wherein said filler end of said tube is sealed and said tube is postured with the dispensing end facing generally downwardly and is vibrated after the mixing operation to aid in settling said mass toward said dispensing end whereby de-aeration of said mass is further facilitated.