Patent
   D300270
Priority
Mar 16 1987
Filed
Mar 16 1987
Issued
Mar 14 1989
Expiry
Mar 14 2003
Assg.orig
Entity
unknown
7
8
n/a
The ornamental design for a four-way T-shaped respiratory valve, as shown and described.

FIG. 1 is a perspective view of a four way T-shaped respiratory valve showing our new design;

FIG. 2 is a left side elevational view thereof, the right side elevational view being a mirror image of that shown;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a top plan view of a second embodiment of the four way T-shaped respiratory valve, wherein the main body of the valve is clear and the internal flow paths are visible, the outside of the valve being otherwise the same as the valve of FIGS. 1 through 6; and,

FIG. 8 is a rear elevational view of FIG. 7.

Rudolph, Hans, Rudolph, Kevin A.

Patent Priority Assignee Title
D303586, Aug 06 1987 Hans Rudolph, Inc. Three way Y-shaped respiratory valve
D305165, Aug 06 1987 Hans Rudolph, Inc. Two way check respiratory valve
D306086, Aug 06 1987 Hans Rudolph, Inc. Five way respiratory valve
D634420, Jul 18 2007 ASAHI ORGANIC CHEMICALS INDUSTRY CO , LTD Valve
D672454, Jul 01 2010 MERCURY ENTERPRISES, INC. T-piece resuscitator
D760376, Jan 06 2014 Laerdal Medical AS Ventilating bag with safety valve
D855795, Mar 27 2018 MERCURY ENTERPRISES, INC.; MERCURY ENTERPRISES, INC Reusable t-piece resuscitator
Patent Priority Assignee Title
3643686,
4098290, Dec 02 1976 Miniature intermittent positive pressure breathing valve
4180066, Oct 20 1977 Vital Signs, Inc. Safety interface and valve for anesthesia gas scavenging
4436090, Jan 22 1979 Piston actuated, pilot valve operated breathing regulator
4489721, Dec 30 1982 The Regents of the University of California Double lumen tube adaptor and valve system for medical anesthesia circuits
4493339, May 05 1982 Parker Intangibles LLC Air valve for a breathing system
233372,
GB2162070,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Feb 18 1987RUDOLPH, HANSHANS RUDOLPH, INC , 7200 WYANDOTTE, KANSAS CITY, MISSOURI 64114 A CORP OFASSIGNMENT OF ASSIGNORS INTEREST 0046780792 pdf
Feb 18 1987RUDOLPH, KEVIN A HANS RUDOLPH, INC , 7200 WYANDOTTE, KANSAS CITY, MISSOURI 64114 A CORP OFASSIGNMENT OF ASSIGNORS INTEREST 0046780792 pdf
Mar 16 1987Hans Rudolph, Inc.(assignment on the face of the patent)
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