Alternative cold shrink device
AssigneeAmerace Corporation
InventorGlenn J. Luzzi
Life of this patent
Estimating the term…
Abstract
A mandrel having a tapered surface expanding from a first dimension at a first end to a larger dimension at its second, and having a central bore larger than the diameter of a high voltage cable, is forced into the bore of a premolded or extruded high voltage component to expand, at least a portion of such bore to the diameters of such mandrel. A locking device is fixed to the component to retain the mandrel in place and retain the premolded or extruded component in its expanded state. In use the cable is inserted through the mandrel bore into the cover bore and the locking device released. As the cover returns substantially to its former dimensions, the hoops forces applied to the tapered mandrel force the mandrel out from the cover bore and it may be removed from the cable if desired.
Claims12
A device for expanding the bore of a recoverable member comprising:
- a) mandrel means having a first end of a first diameter and a second end of a second diameter larger than said first diameter with a tapered exterior surface between said first end and said second end;
- b) said mandrel means having an interior bore from said first end to said second end to increase the diameter of said bore of said recoverable member when said mandrel means is placed in said bore of said recoverable member;
- c) and locking means for fixing said mandrel means to said recoverable means to maintain said recoverable means bore in its increased diameter state;
- d) said locking means when released permitting said recoverable member bore to return to its original dimensions ejecting said mandrel means from said recoverable member.
Dependencies are inferred from the claim text.