Combustion tube
AssigneeLeco Corporation
InventorGordon C. Ford
Life of this patent
Estimating the term…
Abstract
A combustion tube comprises a generally cylindrical body with an outwardly extending tube stop spaced from one end of the combustion tube for engaging a combustion tube mounting assembly and fixing the tube in a precise position. Near the opposite end of the tube is an enlarged opening for receiving an upper seal assembly of a combustion furnace with the outer annular shoulder of the upper end of the tube having a rolled edge to facilitate the insertion of the tube through the seal in the upper seal assembly of the furnace. The combustion tube is made of quartz glass to withstand the temperatures encountered in the furnace. The combustion tube is specifically designed and adapted to be precisely positioned in an induction furnace with an easy tube removal system for the furnace.
Claims20
A combustion tube for use in an analytical furnace comprising:
- a generally cylindrical body having a tube stop spaced from one end of said body for engaging a combustion tube mounting assembly for positioning the body in a predetermined position with respect to said mounting assembly, wherein said tube stop comprises a plurality of angularly spaced longitudinally aligned extensions formed radially outwardly in said body.
A combustion tube for an induction furnace comprising;
- a generally cylindrical body;
- and
- a tube stop comprising a plurality of angularly spaced projections on said body located in predetermined spaced relationship of about 0.8 inches from one end of said body and extending outwardly from said body about 0.06 inches.
A combustion tube for use in an analytical furnace comprising:
- a generally cylindrical body having a tube stop spaced from one end of said body for engaging a combustion tube mounting assembly for positioning the body in a predetermined position with respect to said mounting assembly, wherein said tube stop comprises one of glass, ceramic, or metal ring.
Dependencies are inferred from the claim text.