초록 ▼

An apparatus for inspecting feedwater piping in a steam generator having "J" nozzles. A camera and light source are coupled to a yoke mounted rotatable wheel adjacent the end of an elongated flexible conduit. Control cables, for rotating the wheel, extend through the yoke and the conduit and are fas

An apparatus for inspecting feedwater piping in a steam generator having "J" nozzles. A camera and light source are coupled to a yoke mounted rotatable wheel adjacent the end of an elongated flexible conduit. Control cables, for rotating the wheel, extend through the yoke and the conduit and are fastened to a second rotatable wheel. Rotation of the second wheel causes rotation of the first wheel along with the camera and light source. Control cables for the camera and light source also extend through the yoke and the flexible conduit.

대표청구항 ▼

[ We claim:] [1.]1. Apparatus for use in inspecting cavities with limited access such as a boiler feedwater piping system comprising:an elongate flexible conduit, said flexible conduit having a distal end and a proximal end;a miniature camera positioned at said distal end of said flexible conduit;a

[ We claim:] [1.]1. Apparatus for use in inspecting cavities with limited access such as a boiler feedwater piping system comprising:an elongate flexible conduit, said flexible conduit having a distal end and a proximal end;a miniature camera positioned at said distal end of said flexible conduit;a miniature, variable intensity light source also positional at said distal end of said flexible conduit;a yoke supporting the camera and the light source for arcuate movement about a vertical axis;a first wheel rotatably mounted to said yoke;a plurality of control cables, each of said control cables having a first end fastened to said first wheel.