B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/527
B29D 23/00 (2006.01) B29C 33/40 (2006.01) B29C 49/00 (2006.01)
Patent
CA 1040376
ABSTRACT OF THE DISCLOSURE A device for minimizing the seam formed longi- tudinally along the exterior of heat-shrinkable plastic tubing when the tubing is prepared by pressurizing and heat- ing the interior of an expandable plastic tubing until it is expanded against a cylindrical sheet surrounding the plastic tubing, which cylindrical sheet has been formed by looping the sheet back upon itself and clamping the abutting portions of the sheet with longitudinal clamps, which comprises (a) a pair of opposing clamps having opposing surfaces for clamping the looped flexible sheet, said clamps extending longitudinally along the length of the looped sheet and positioned to clamp between the ends of the looped sheet at the point where the sheet comes together to form a cylinder, said clamps each having a shaped surface along the edge that abuts the looped sheet where it enters between the clamps, (b) a spacer positioned between said clamps, extending longitudinally the length of the clamps, said spacer having means for receiving and fast- ening a plate which extends into the interior of the cylinder, (c) a longitudinally flexible plate within the interior of the cylinder extending longitudinally the length of the clamps, constructed and arranged to be fastened to said spacer at said receptacles, so that the plane of the plate is perpendicular to the opposing surfaces of the clamps, said plate having shaped portions along each longitudinal edge thereof constructed and positioned to conform with and match the shaped surface of each said clamp when in abutting position therewith, and (d) means for adjusting the position of said plate relative to said spacer. - 2 -
222172
E.i. Du Pont de Nemours And Company
LandOfFree
Apparatus for minimizing seam formation in heat-shrinkable... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for minimizing seam formation in heat-shrinkable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for minimizing seam formation in heat-shrinkable... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-339025