Pressure relief valve for respiratory inhalation systems

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Description

FIG. 1 is a perspective view of a pressure relief valve for respiratory inhalation systems showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a right end elevational view thereof;

FIG. 4 is a left end elevational view thereof;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a bottom plan view thereof.

The broken lines are shown for illustrative purposes only.

Referenced Cited
U.S. Patent Documents
3521627 July 1970 Murray
3688794 September 1972 Bird et al.
D202319 September 1965 Shugarman
D233569 November 1974 Miller
D234637 March 1975 Flynn
Patent History
Patent number: D243635
Type: Grant
Filed: Jul 23, 1975
Date of Patent: Mar 8, 1977
Inventor: Bruce B. Miller (Kalamazoo, MI)
Primary Examiner: Bernard Ansher
Attorney: Ian C. McLeod
Application Number: 5/598,544
Classifications
Current U.S. Class: D83/1L
International Classification: D2902;