Patent ID: 6457212
Filing Date: 2002-10-01
Classification: F16L,Y10T

Abstract:
A method for manufacturing a clamp having a stepless and gap-free internal clamping surface obtained by the use of one of a female and male profile, respectively, at one end of the clamping band intended to form an overlapped inner band portion in the installed condition of the clamp and by one of a male and female profile, respectively, formed by a channel in the clamping band intended to form an overlapping outer band portion in the installed condition of the clamp, comprising the steps ofa) deforming by deep-drawing the clamping band to realize in the center area of the clamping band the channel which has a dimension in the direction at right angle to the plane of the clamping band substantially corresponding to the thickness of the clamping band and which is open at one end and closed at the other, and b) merging within the area of the intended end of the channel away from the free end of the outer clamping band portion, any part of the clamping band remaining positionally substantially unaffected by the formation of the channel in such a manner that a surface of the continuation of the outer clamping band portion is achieved terminating in a single plane displaced with respect to the original plane of the outer clamping band portion by a distance substantially corresponding to the thickness of the clamping band and extending uninterruptedly over the entire band width of the clamping band.