Glass tubing
OwnerAbdelouahed Soufiane, Gerald J. Shirkinventors
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Abstract
Glass tubing that utilizes silica-titania glass as material for the tubing. The tubing of the invention can be formed of a single layer of silica-titania glass or the tubing can be formed in layers, with an outer layer of silica-titania glass and an inner layer of silica glass. The tubing can also be formed with an inner layer of silica-titania glass covered by a layer of silica glass, or the tubing can be formed with three layers, an inner layer and an outer layer of silica-titania glass sandwiching a layer of silica glass. In all embodiments, the resulting tubing has improved mechanical strength or improved chemical durability or both making the tubing useful in a variety of medical and industrial applications.
Claims8
Glass tubing for conveying fluids or guiding light waves, said tubing comprising an annular wall of silica-titania glass, said tubing having an interior passageway through which the fluids or light waves can pass, the annular wall of silica-titania glass having a concentration of titania (TiO.sub.2) in the range of 1%-20% by weight with the balance of 80%-99% being silica (SiO.sub.2), and a second annular wall of silica glass, the second annular wall being contiguous with the annular wall of silica-titania glass.
Dependencies are inferred from the claim text.