Apparatus for compounding rubber, elastomer, plastic and like mixes

Claim 2

In apparatus for compounding materials including solid ingredients which become gelatinous at above ambient temperature, such as rubbers, elastomers, plastics, and like mixes: structure forming a tubular material processing chamber comprising two side-by-side intercommunicating substantially cylindrical portions; two rotors one supported for rotation in each cylindrical portion of said chamber and each having a material conveying screw section followed by a material processing section comprising two pairs of blade portions offset with respect to one another lengthwise of the rotor of which they are a part; and means for rotating said rotors in opposite directions at different controlled speeds; said pair of blade portions of the fast rotor adjacent the conveying screw section thereof being left helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and the other pair of blade portions of the fast rotor being right helically orientated more lengthwise of the axis of the rotor than circumferentially thereof, and the pairs of blade portions nearest the conveying screw section of the slow rotor being right helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and the other pair of blade portions of the slow rotor being straight and orientated parallel to the axis of the slow rotor.

Claim 3

In apparatus for compounding materials including solid ingredients which become gelatinous at above ambient temperature, such as, rubbers, elastomers, plastics, and like mixes: structure forming a tubular material processing chamber comprising two side-by-side intercommunicating substantially cylindrical portions; two rotors one supported for rotation in each cylindrical portion of each chamber and each having a material conveying screw section followed by a material processing section comprising two pairs of blade portions offset with respect to one another lengthwise of the rotor of which they are a part; and means for rotating said rotors in opposite directions at different controlled speeds; said pair of blade portions of the fast rotor adjacent the conveying screw section thereof being left helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and the other pair of blade portions of the fast rotor being right helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and more inclined to the axis of the rotor than the other pair, and the pairs of blade portions nearest the conveying screw section of the slow rotor being right helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and the other pair of blade portions of the slow rotor being straight and orientated parallel to the axis of the slow rotor.

Claim 4

In apparatus for compounding materials including solid ingredients which become gelatinous at above ambient temperature, such as, rubbers, elastomers, plastics, and like mixes: structure forming a tubular material processing chamber comprising two side-by-side intercommunicating substantially cylindrical portions; two rotors one supported for rotation in each cylindrical portion of each chamber and each having a material conveying screw section followed by a material processing section comprising two pairs of blade portions offset with respect to one another lengthwise of the rotor of which they are a part; and means for rotating said rotors in opposite directions at different controlled speeds; said pair of blade portions of the fast rotor adjacent the conveying screw section thereof being left helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and the other pair of blade portions of the fast rotor being right helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and more inclined to the axis of the rotor than the other pair, and the pairs of blade portions nearest the conveying screw section of the slow rotor being right helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and the other pair of blade portions of the slow rotor being straight and orientated parallel to the axis of the slow rotor.

Claim 5

In apparatus for compounding materials including solid ingredients which become gelatinous at above ambient temperature, such as, rubbers, elastomers, plastics, and like mixes: structure forming a tubular material processing chamber comprising two side-by-side intercommunicating substantially cylindrical portions; two rotors one supported for rotation in each cylindrical portion of said chamber and each having a material conveying screw section followed by a material Processing section comprising two pairs of blade portions offset with respect to one another lengthwise of the rotor of which they are a part; and means for rotating said rotors in opposite directions at different controlled speeds; said pair of blade portions of the fast rotor adjacent the conveying screw section thereof being left helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and the other pair of blade portions of the fast rotor being right helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and longer and more inclined to the axis of the rotor than the other pair, and the pairs of blade portions nearest the conveying screw section of the slow rotor being right helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and the other pair of blade portions of the slow rotor being straight and orientated parallel to the axis of the slow rotor.

Claim 6

In apparatus for compounding materials including solid ingredients which become gelatinous at above ambient temperature, such as, rubbers, elastomers, plastics, and like mixes: structure forming a tubular material processing chamber comprising two side-by-side intercommunicating substantially cylindrical portions; two rotors one supported for rotation in each cylindrical portion of said chamber and each having a material conveying screw section followed by a material Processing section comprising two pairs of blade portions offset with respect to one another lengthwise of the rotor of which they are a part; and means for rotating said rotors in opposite directions at different controlled speeds; said pair of blade portions of the fast rotor adjacent the conveying screw section thereof being left helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and the other pair of blade portions of the fast rotor being right helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and longer and more inclined to the axis of the rotor than the other pair, and the pairs of blade portions nearest the conveying screw section of the slow rotor being right helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and the other pair of blade portions of the slow rotor being straight and orientated parallel to the axis of the slow rotor.

Claim 7

In apparatus for compounding materials including solid ingredients which become gelatinous at above ambient temperature, such as, rubbers, elastomers, plastics, and like mixes: structure forming a tubular material processing chamber comprising two side-by-side intercommunicating substantially cylindrical portions; two rotors one supported for rotation in each cylindrical portion of said chamber and each having a material conveying screw section followed by a material processing section comprising two pairs of blade portions offset with respect to one another lengthwise of the rotor of which they are a part; and means for rotating said rotors in opposite directions at different controlled speeds; said pair of blade portions of the fast rotor adjacent the conveying screw section thereof being left helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and the other pair of blade portions of the fast rotor being right helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and longer and more inclined to the axis of the rotor than the other pair, and the pairs of blade portions nearest the conveying screw section of the slow rotor being right helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and being longer than either of the blade portions of the fast rotor and the other pair of blade portions of the slow rotor being straight and orientated parallel to the axis of the slow rotor.

Claim 8

In apparatus for compounding materials including solid ingredients which become gelatinous at above ambient temperature, such as, rubbers, elastomers, plastics, and like mixes: structure forming a tubular material processing chamber comprising two side-by-side intercommunicating substantially cylindrical portions; two rotors one supported for rotation in each cylindrical portion of said chamber and each having a material conveying screw section followed by a material processing section comprising two pairs of blade portions offset with respect to one another lengthwise of the rotor of which they are a part; and means for rotating said rotors in opposite directions at different controlled speeds; said pair of blade portions of the fast rotor adjacent the conveying screw section thereof being left helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and the other pair of blade portions of the fast rotor being right helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and longer and more inclined to the axis of the rotor than the other pair, and the pairs of blade portions nearest the conveying screw section of the slow rotor being right helically orientated more lengthwise of the axis of the rotor than circumferentially thereof and being longer than either of the blade portions of the fast rotor and the other pair of blade portions of the slow rotor being straight and orientated parallel to the axis of the slow rotor.

Claim 9

In apparatus for compounding materials including solid ingredients which become gelatinous at above ambient temperature, such as, rubber, elastomers, plastics, and like mixes: structure forming a tubular material processing chamber comprising two side-by-side intercommunicating substantially cylindrical portions; two rotors one supported for rotation in each cylindrical portion of said chamber and each having a material conveying screw section followed by a material processing section comprising two pairs of blade portions offset with respect to one another lengthwise of the rotor of which they are a part; and means for rotating said rotors in opposite directions at different controlled speeds; said pair of blade portions of the fast rotor adjacent the conveying screw section thereof being left helically orientated at angles of about 10* to 40* to the axis of the rotor and the other pair of blade portions of the fast rotor being right helically orientated at angles of about 20* to 50* to the axis of the rotor and longer than the other pair, and the pairs of blade portions nearest the conveying screw section of the slow rotor being right helically orientated at angles of about 10* to 40* and being longer than either of the blade portions of the fast rotor and the other pair of blade portions of the slow rotor being straight and orientated parallel to the axis of the slow rotor.

Claim 10

In apparatus for compounding materials including solid ingredients which become gelatinous at above ambient temperature, such as, rubber, elastomers, plastics, and like mixes: structure forming a tubular material processing chamber comprising two side-by-side intercommunicating substantially cylindrical portions; two rotors one supported for rotation in each cylindrical portion of said chamber and each having a material conveying screw section followed by a material processing section comprising two pairs of blade portions offset with respect to one another lengthwise of the rotor of which they are a part; and means for rotating said rotors in opposite directions at different controlled speeds; said pair of blade portions of the fast rotor adjacent the conveying screw section thereof being left helically orientated at angles of about 10* to 40* to the axis of the rotor and the other pair of blade portions of the fast rotor being right helically orientated at angles of about 20* to 50* to the axis of the rotor and longer than the other pair, and the pairs of blade portions nearest the conveying screw section of the slow rotor being right helically orientated at angles of about 10* to 40* and being longer than either of the blade portions of the fast rotor and the other pair of blade portions of the slow rotor being straight and orientated parallel to the axis of the slow rotor.

Claim 11

In apparatus for compounding materials including solid ingredients which become gelatinous at above ambient temperature, such as, rubbers, elastomers, plastics, and like mixes: structure forming a tubular material processing chamber comprising two side-by-side intercommunicating substantially cylindrical portions; two rotors one supported for rotation in each cylindrical portion of said chamber and each having a material conveying screw section followed by a material processing section comprising two pairs of blade portions offset with respect to one another lengthwise of the rotor of which they are a part; and means for rotating said rotors in opposite directions at different controlled speeds; said pair of blade portions of the fast rotor adjacent the conveying screw section thereof being left helically orientated at angles of about 10* to 40* to the axis of the rotor and the other pair of blade portions of the fast rotor being right helically orientated at angles of about 20* to 50* to the axis of the rotor and the pairs of blade portions nearest the conveying screw section of the slow rotor being right helically orientated at angles of about 10* to 40* to the axis of the rotor and the other pair of blade portions of the slow rotor being straight and orientated parallel to the axis of the slow rotor.

Claim 12

In apparatus for compounding materials including solid ingredients which become gelatinous at above ambient temperature, such as, rubbers, elastomers, plastics, and like mixes: structure forming a tubular material processing chamber comprising two side-by-side intercommunicating substantially cylindrical portions; two rotors one supported for rotation in each cylindrical portion of said chamber and each having a material conveying screw section followed by a material processing section comprising two pairs of blade portions offset with respect to one another lengthwise of the rotor of which they are a part; and means for rotating said rotors in opposite directions at different controlled speeds; said pair of blade portions of the fast rotor adjacent the conveying screw section thereof being left helically orientated at angles of about 10* to 40* to the axis of the rotor and the other pair of blade portions of the fast rotor being right helically orientated at angles of about 20* to 50* to the axis of the rotor and the pairs of blade portions nearest the conveying screw section of the slow rotor being right helically orientated at angles of about 10* to 40* to the axis of the rotor and the other pair of blade portions of the slow rotor being straight and orientated parallel to the axis of the slow rotor.

Claim 13

In apparatus for compounding materials including solid ingredients which become gelatinous at above ambient temperature, such as, rubbers, elastomers, plastics, and like mixes; structure forming a tubular material processing chamber comprising two side-by-side intercommunicating substantially cylindrical portions; two rotors one supported for rotation in each cylindrical portion of said chamber and each having a material conveying screw section followed by a material processing section comprising two pairs of blade portions offset with respect to one another lengthwise of the rotor of which they are a part; means for rotating said rotors in opposite directions at different controlled speeds; said pair of blade portions of the fast rotor adjacent the conveying screw section thereof being left helically orientated at angles of about 10* to 40* to the axis of the rotor and the other pair of blade portions of the fast rotor being right helically orientated at angles of about 20* to 50* to the axis of the rotor and longer than the other pair, and the pairs of blade portions nearest the conveying screw section of the slow rotor being right helically orientated at angles of about 10* to 40* to the axis of the rotor and being longer than either of the blade portions of the fast rotor and the other pair of blade portions of the slow rotor being straight and orientated parallel to the axis of the slow rotor; said structure also forming a material conveying conduit adjacent one end of said chamber intersecting the bottom portion of said chamber and extending transversely thereof; said chamber being provided with an opening adjacent the end thereof opposite said conduit for the entrance of material to be processed; a material conveying screw rotatably supported in said conduit with its axis offset below the axis of said rotor and with a portion of its thread extending into said chamber; and means to rotate said screw at a controlled speed; said structure forming said chamber and said conduit having passageways therein for the circulation of heat exchange medium closely adjacent the interior walls of said chamber and said conduit.

Claim 14

In apparatus for compounding materials including solid ingredients which become gelatinous at above ambient temperature, such as, rubbers, elastomers, plastics, and like mixes; structure forming a tubular material processing chamber comprising two side-by-side intercommunicating substantially cylindrical portions; two rotors one supported for rotation in each cylindrical portion of said chamber and each having a material conveying screw section followed by a material processing section comprising two pairs of blade portions offset with respect to one another lengthwise of the rotor of which they are a part; means for rotating said rotors in opposite directions at different controlled speeds; said pair of blade portions of the fast rotor adjacent the conveying screw section thereof being left helically orientated at angles of about 10* to 40* to the axis of the rotor and the other pair of blade portions of the fast rotor being right helically orientated at angles of about 20* to 50* to the axis of the rotor and longer than the other pair, and the pairs of blade portions nearest the conveying screw section of the slow rotor being right helically orientated at angles of about 10* to 40* to the axis of the rotor and being longer than either of the blade portions of the fast rotor and the other pair of blade portions of the slow rotor being straight and orientated parallel to the axis of the slow rotor; said structure also forming a material conveying conduit adjacent one end of said chamber intersecting the bottom portion of said chamber and extending transversely thereof; said chamber being provided with an opening adjacent the end thereof opposite said conduit for the entrance of material to be processed; a material conveying screw rotatably supported in said conduit with its axis offset below the axis of said rotor and with a portion of its thread extending into said chamber; and means to rotate said screw at a controlled speed; said structure forming said chamber and said conduit having passageways therein for the circulation of heat exchange medium closely adjacent the interior walls of said chamber and said conduit.