Patent ID: 6502488
Filing Date: 2003-01-07
Classification: B26D,B65C,Y10T

Abstract:
Cutting apparatus for effecting a cut through flexible tubing slidably supported for advancement on a mandrel having a peripheral groove at the location of the intended cut, which apparatus comprises an annulus for co-axially surrounding the mandrel, drive means to rotate the annulus about its axis, a blade carrier pivoted on the annulus about an axis parallel to the annulus axis and supporting a cutting blade movable between withdrawn and cutting positions with respect to said groove by pivoting movement of the carrier, the carrier having an armature portion arranged between a pair of electromagnets mounted on the annulus, and current supply means for the electromagnets whereby the armature portion is attracted selectively to either one of the two electromagnets so that the blade may be held in its withdrawn position by one electromagnet until a predetermined length of tubing has been advanced past the groove in the mandrel whereafter the blade may be moved to its cutting position by energization of the other electromagnet, to effect a cut through the tubing.