Mouthpiece for a spirometer

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Description

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

FIG. 2 is an elevation view of the mouthpiece of FIG. 1;

FIG. 3 is a top plan view of the mouthpiece of FIG. 1;

FIG. 4 is an end view from the right end of the mouthpiece as shown in FIG. 2;

FIG. 5 is an end view from the left end of the mouthpiece as shown in FIG. 2; and

FIG. 6 is a bottom plan view of the mouthpiece of FIG. 1.

Referenced Cited
U.S. Patent Documents
D242489 November 1976 Burroughs
D242956 January 4, 1977 Miller et al.
3880591 April 1975 Burroughs
3936048 February 3, 1976 Dunlap et al.
4114608 September 19, 1978 Russo
4221381 September 9, 1980 Ericson
4232683 November 11, 1980 Bartholomew et al.
Patent History
Patent number: D266695
Type: Grant
Filed: Mar 28, 1980
Date of Patent: Oct 26, 1982
Inventors: Wallace E. Trammll (Provo, UT), James R. Chidester (American Fork, UT)
Primary Examiner: Bernard Ansher
Attorneys: Terry M. Crellin, B. Deon Criddle
Application Number: 6/134,982
Classifications
Current U.S. Class: D24/17; D24/99; D21/61; D21/64
International Classification: D2402;