Medical breathing unit

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Description

FIG. 1 is a front, right, top perspective view of a medical breathing unit showing my new design;

FIG. 2 is a rear, left, top perspective view thereof;

FIG. 3 is a front elevational view thereof on a reduced scale;

FIG. 4 is a right side elevational view thereof on a reduced scale;

FIG. 5 is a left side elevational view thereof on a reduced scale;

FIG. 6 is a rear elevational view thereof on a reduced scale;

FIG. 7 is a top plan view thereof on a reduced scale; and

FIG. 8 is a bottom plan view thereof on a reduced scale.

Referenced Cited
U.S. Patent Documents
D188301 January 1960 Doak
D191733 November 1961 Schmahl
D198487 June 1964 Ferris
D206640 January 1967 Mitchell
D210435 March 1968 Boldt
D212284 September 1968 Mitchell
D234376 February 1975 Goettelman
D260933 September 22, 1981 Reichl
3152240 October 1964 Scott
3949743 April 13, 1976 Shanbrom
Patent History
Patent number: D309025
Type: Grant
Filed: Oct 4, 1988
Date of Patent: Jul 3, 1990
Assignee: Virotherm Laboratories, Ltd.
Inventor: Allan J. Beacham (Hants)
Primary Examiner: James M. Gandy
Assistant Examiner: Lisa Lichtenstein
Law Firm: Davis, Bujold & Streck
Application Number: 7/253,721
Classifications
Current U.S. Class: D24/62; Vaporizer (D23/360); D29/7