Glass test tube having protective outer shield
OwnerIsrael Steininventor
Life of this patent
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Abstract
An improved glass test tube is provided with a protective shield on the test tube's outer surface which protects the test tube from accidental breakage. The protective shield may be of a color which indicates that it has breakage protection. In one embodiment, the protective shield is provided by plastic material which is coated or sprayed on the outer surface of the glass test tube. In another embodiment, the protective shield is provided by one or more layers of wrapped sheet material, such as polyester film. The improved glass test tube is particularly useful in automatic analyzers that measure erythrocyte sedimentation rate.
Claims13
A test tube having a protective shield comprising:
- a glass tube with an open end, and dome shaped closed end;
- and
- protective material on the outer surface of the glass tube to protect the test tube from accidental breakage.
A glass test tube having an outer surface comprising:
- material upon the outer surface which protect the glass test tube for accidental breakage, said material being of a color indicative of the presence of said test tube having protection from accidental breakage.
Dependencies are inferred from the claim text.