Method of making a shield for a radiation projector
AssigneeDentsply Research & Development Corp.
InventorDonald I. Gonser
Life of this patent
Estimating the term…
Abstract
A shield for a radiation piping rod is formed by shrinking a length of plastic resin tubing on a rod or on a mandrel having a portion conforming to a portion of the rod to be shielded. The shrunken tubing is provided with a lengthened slit to permit stripping from the rod or mandrel to form the shield. The shield is mounted on the rod after stripping, and an air interface is formed between the rod and the shield to minimize loss of radiation caused by the shield.
Claims4
A method of forming a shield for a radiation piping rod which comprises disposing a length of heat-shrinkable, resilient plastic resin tubing on a mandrel conforming to the rod, heating the mandrel and the length of tubing to a sufficient temperature to allow the tubing to shrink around the mandrel, cooling the mandrel with the length of tubing thereon to set the resin of the tubing in its shrunken condition, forming a lengthwise slit in the length of tubing, stripping the length of tubing from the mandrel to form the shield, and mounting the shield on the rod.
A method of forming a shield for a radiation piping rod which comprises forming a resilient plastic resin tube on a mandrel conforming to the rod, forming a lengthwise slit in the tube, stripping the tube from the mandrel to form the shield, and mounting the shield on the rod.
Dependencies are inferred from the claim text.