Patent ID: 8983018
Filing Date: 2015-03-17
Classification: F22B,G01N,G21C,Y02E

Abstract:
1. A riser pipe repair, comprising: a first collar configured to attach to a straight portion of a riser pipe of a boiling water reactor (BWR) jet pump assembly; one or more upper support columns attached to the first collar; a second collar configured to attach to the straight portion of the riser pipe; one or more lower support columns attached to the second collar; brace supports slideably attached to the upper and lower support columns, the support columns and brace supports each having a longitudinal length that is configured to exist in a plane that is substantially parallel to a longitudinal length of the straight portion of the riser pipe; and ratchet bolts connecting the brace supports to the upper and lower support columns, the brace supports, and the upper and lower support columns configured to axially compress the straight portion of the riser pipe by applying an axial compression force in a direction running along the longitudinal length of the straight portion of the riser pipe as the ratchet bolts are tightened.