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US 4,019,414 AGranted
Strand granulation machine
AssigneeMonsanto Company
InventorsDorsey O. Thomas, Jr., Alvah B. Terry
Life of this patent
Estimating the term…
Abstract
Strand granulation machines characterized by cutter bearing rotors and strand passages wherein continuous strands are passed through generally cross-sectionally circular shear bushings at the exit end of which that they are engaged and severed by the rotating cutters are improved by employing spring-loaded rotating cutters in working relationship with a cutter positioning cam to move the cutters reciprocally generally along the radius of the circle generated by their sweep of rotation.
Claims1
Apparatus for granulating a strand, comprising
- a. an extrusion die having a plurality of extrusion channels arranged in a ring,
- b. a wear plate secured to the die and having mounted therein a plurality of shear bushings having openings for passage of the strands formed by the extrusion channels,
- c. a plate spaced from the wear plate and mounted for rotation about an axis concentric with the ring of extrusion channels,
- d. a plurality of spring-loaded cutter yokes mounted on the plate,
- e. a plurality of cutters mounted on the cutter yokes for sliding movement in directions radial to said axis,
- f. a cam track mounted off center with respect to said axis,
- g. a plurality of cam rollers positioned to roll along said cam track, and
- h. a plurality of cam arms each connecting one of the cam rollers to one of the cutters in such a manner that each cutter reciprocates radially as the plate is rotated.
5 more elements
Dependencies are inferred from the claim text.