Patent Number: 040100693
Section: claims

1. A vented nuclear fuel rod comprising a tubular casing having upper and lower ends and which is integral throughout between said ends, a lower end cap closing said lower end, said upper end having an upper end cap having a substantially central, axially extending hole formed therethrough and a flange which is welded to said upper end, said casing having an inside and said upper end cap having a tubular stub projecting into said casing and radially spaced from said inside, a tubular filter casing inside of the first-named casing and having an upper end which is welded to said tubular stub, said filter casing having a lower end and a filter end cap welded thereto and through which a hole extends axially, said filter casing having an inside in which filter material is pressed to a degree preventing gas by-passing between the material and the inside of the filter casing, and nuclear fuel positioned within the first-named casing's said inside between said filter end cap and said lower end cap of the first-named casing.