Mouthpiece for a spirometer

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Description

FIG. 1 is a perspective view of a mouthpiece for a spirometer showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a side elevational view thereof, the opposite side elevational view being identical thereto;

FIG. 4 is a back view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
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Patent History
Patent number: D335343
Type: Grant
Filed: Aug 22, 1990
Date of Patent: May 4, 1993
Inventors: William C. Jones (Oak Brook, IL), William C. Jones, Jr. (Oak Brook, IL)
Primary Examiner: Stella Reid
Law Firm: Tilton, Fallon, Lungmus & Chestnut
Application Number: 7/570,715
Classifications
Current U.S. Class: Respirator, Vaporizer, Or Inhalation Tube (4) (D24/110)