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US 5,102,599 AGranted
Method of and apparatus for cutting tails of viscous material
AssigneeGeneral Electric Company
InventorWalter E. Shults
Life of this patent
Estimating the term…
Abstract
A rotating blade is passed beneath an extruder nozzle and employed to cut tails of viscous materials which have been extruded.
Claims12
A method for cutting vertically aligned tails of viscous material having a viscosity of from about 250 to 200,000,000 centipoise at 25.degree. C., comprising the steps of:
- (a) extruding the viscous material through an extruder nozzle and into a package,
- (b) vertically separating the extruder nozzle and viscous material whereby a tail is formed, followed by,
- (c) contacting said tail at a point with a rotating blade, the blade rotating at a speed of 200 to 6,000 rpm and having a thickness of 1 to 125 mil at said point, the blade passing through the tail without imparting substantial momentum to the bulk of the tail, and
- (d) passing the blade through the tail whereby the bulk of the tail falls in a substantially vertical direction onto the extruded viscous material.
1 more element
A device for extruding viscous material having a viscosity of from about 250 to 200,000,000 centipoise at 25.degree. C., comprising:
- (i) at least one extruder nozzle vertically aligned above an area to deposit viscous material, a tail being formed by the vertical separation of the extruder nozzle and the extruded viscous material, and
- (ii) a blade rotating at a speed of 200 to 6,000 rpm is a substantially horizontal plane and mounted to pass beneath at least one extruder nozzle so as to come into contact with the tail formed upon vertical separation of the extruder nozzle and the extruded viscous material, the blade having a thickness of 1 to 125 mil at the point of contact between the blade and the tail, the blade passing through the tail without imparting substantial momentum to the bulk of the tail, whereby the bulk of the tail falls in a substantially vertical direction onto the extruded viscous material.
Dependencies are inferred from the claim text.