Anaesthetic and respiratory face mask

Description

FIG. 1 is a front perspective view of an anaesthesia and respiratory face mask showing our new design;

FIG. 2 is as rear perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a cross sectional view taken along the line 5--5 of FIG. 3.

FIG. 6 is a front perspective view of a second embodiment of the anaesthesia and respiratory face mask the sole difference from the first embodiment being in the size of the cylindrical aperture at the front of the mask;

FIG. 7 is a rear perspective view of FIG. 6;

FIG. 8 is a top plan view thereof;

FIG. 9 is a bottom plan view thereof;

FIG. 10 is a cross sectional view taken along the line 5--5 of FIG. 8.

Referenced Cited
U.S. Patent Documents
D263166 February 23, 1982 Bushman
3303845 February 1967 Detmer III
3948255 April 6, 1976 Davidson
4559940 December 24, 1985 McGinnis
Patent History
Patent number: D303587
Type: Grant
Filed: Dec 18, 1987
Date of Patent: Sep 19, 1989
Inventors: Jeffrey J. Quinn (Indianapolis, IN), Brad H. Quinn (Indianapolis, IN)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Kay H. Chin
Attorney: R. Stephen Hansell
Application Number: 7/134,910
Classifications
Current U.S. Class: D29/7