Patent ID: 6199593
Filing Date: 2001-03-13
Classification: B29C,F16L

Abstract:
A ring-shaped holder for applying a material into a space defined between an inner pipe located within an outer pipe, said holder comprising:an inner ring having a plurality of roller bearings located on an interior rim, said roller bearings permitting axial movement of said inner ring along a longitudinal axis of an inner pipe receivable inside said inner ring and preventing radial movement of said inner ring relative to a longitudinal axis of an inner pipe receivable inside said inner ring, said inner ring further including at least one aperture for permitting placement of a wire parallel to a longitudinal axis of an inner pipe receivable inside said inner ring and preventing radial movement of a wire relative to a longitudinal axis of an inner pipe receivable inside said inner ring; andan outer ring concentrically surrounding said inner ring and rotatably connected to said inner ring, said outer ring having a plurality of ball bearings located on an outer rim, said ball bearings permitting both axial and radial movement of said outer ring relative to a longitudinal axis of an inner pipe receivable within said inner ring and both axial and radial movement of said outer ring relative to a longitudinal axis of an outer pipe receivable outside said outer ring, said outer ring further including at least one aperture for delivery of a mixture into a space defined between an inner pipe receivable within said inner ring and an outer pipe receivable outside said outer ring.