Patent ID: 6270247
Filing Date: 2001-08-07
Classification: B01F,B29B,F16J,Y10S

Abstract:
A mixing and kneading apparatus comprising:a housing delimiting a work space;a working member extending into said work space and being rotatable and reciprocable relative to said housing;a sealing assembly located between said housing and said working member, said sealing assembly being rotationally fixed to said housing and being fixed to said working member for reciprocal movement with said working member;first sealing means being supported by said sealing assembly and being interposed between said sealing assembly and said working member for providing rotary sealing of said working member in said housing; andsecond sealing means being interposed between said sealing assembly and said work space for providing reciprocal sealing of said working member in said housing, a first portion of said second sealing means being supported by said housing and a second portion of said second sealing means being supported by said sealing assembly, said first and second portions of said second sealing means extending radially between said housing and said sealing assembly.