Abstract: The present invention includes an apparatus for watertight sealing of a steam generator nozzle and methods for installing the apparatus. The apparatus comprises a nozzle dam, a nozzle dam attachment ring, and a seal. The attachment ring is provided in an interior of the nozzle and has a plurality of retaining tabs and a nozzle dam landing. The nozzle dam is adapted for insertion into the attachment ring and abutment against the nozzle dam landing. The nozzle dam has a plurality of radial protrusions adapted to interlock with the retaining tabs for fixing the nozzle dam in the attachment ring upon rotation of the nozzle dam in the attachment ring. The seal covers at least one side of the nozzle dam for effecting a seal between the nozzle dam and the attachment ring. The present invention also provides methods and apparatus for the pressurization and control of nozzle dam seals.

Abstract: A system for controlling and monitoring portable tools at a particular work cell remotely by R-F communication to provide error proofing of various parameters including that the correct tool is to be used at a work cell, the tool is properly calibrated for the operation to be performed, that it is being used a proper number of times per part being assembled or inspected, and that the tool has been calibrated within a selected service interval. The tools will be made actuable only by R-F communication with specific factory apparatus whereby theft of such portable tools will be inhibited.

Abstract: Coating, particularly a method for uniformly depositing a micro thin layer of fluid upon the surface of an object such as a substrate, or the like. Flowing the coating material through a permeable and sloping surface, so as to develop a downward laminar flow of coating material on the outside of the sloping surface. The object to be coated is advanced tangentially to the flow of coating material such that the surface to be coated intersects laminar flow of coating material at the apex of the sloping surface. Meniscii of coating material are supported both at the leading edge and the trailing edge of coating material in contact with the surface to be coated. The uniform disengagement and drainage of deposited excess coating material from the coated surface are ensured by uniform meniscii and the constant downward laminar flow of coating material on the outside of the sloping surface.