Three way Y-shaped respiratory valve

- Hans Rudolph, Inc.
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Description

FIG. 1 is a perspective view of a three way Y-shaped respiratory valve, showing our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a side elevational view thereof, opposite that shown in FIG. 2;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D276464 November 20, 1984 Weigl et al.
D276465 November 20, 1984 Clawson et al.
D300270 March 14, 1989 Rudolph et al.
D300271 March 14, 1989 Rudolph et al.
D300272 March 14, 1989 Rudolph et al.
D300273 March 14, 1989 Rudolph et al.
D300274 March 14, 1989 Rudolph et al.
3643686 February 1972 Koegel
4436090 March 13, 1984 Darling
4489721 December 25, 1984 Ozaki et al.
4493339 January 15, 1985 Porter, Jr.
Patent History
Patent number: D303586
Type: Grant
Filed: Aug 6, 1987
Date of Patent: Sep 19, 1989
Assignee: Hans Rudolph, Inc. (Kansas City, MO)
Inventors: Hans Rudolph (Shawnee Mission, KS), Kevin A. Rudolph (Leawood, KS)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Stella M. Reid
Law Firm: Litman, McMahon & Brown
Application Number: 7/82,099
Classifications
Current U.S. Class: D29/7