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US 2003/0201138 A1Published application
Stethoscope
Assignee3M Innovative Properties Company
InventorThomas E. Drummond
Life of this patent
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Abstract
A chestpiece for a stethoscope, the chestpiece having a novel mix of desirable properties through being fabricated from the group of materials known as “high gravity compounds.” These compounds are prepared by loading various plastic resins with high density metal powders. In spite of the metallic content, appropriate compounds can be injection molded, providing economic and aesthetic advantages.
Claims4
A chestpiece for a stethoscope, comprising:
- a body having at least one sound collecting microphone mounted thereon, the body comprising a high gravity compound having a density of at least about 3 grams/cc.
Dependencies are inferred from the claim text.