Patents Assigned to Steinbeis Gessner GmbH
  • Multi-ply filter lasminate/composite for manufacturing vacuum cleaner filter bags
    Patent number: 5437910
    Abstract: There is provided a multi-ply filter laminate/composite for manufacturing vacuum cleaner filter bags comprising at least one ply of filter paper and at least one ply of fine fiber web, wherein at least one ply of fine fiber web does not cover the whole width of the ply of filter paper bonded to it and thus there are formed one or two edge strip blanks on at least one ply of filter paper.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: August 1, 1995
    Assignee: Steinbeis Gessner GmbH
    Inventors: Ernst Raabe, Albrecht Klimmek