Patent
   D242709
Priority
Sep 08 1975
Filed
Sep 08 1975
Issued
Dec 14 1976
Expiry
Dec 14 1990
Assg.orig
Entity
unknown
12
9
n/a
The ornamental design for an adjustable pressure relief valve, as shown and described.

FIG. 1 is a perspective view of an adjustable pressure relief valve showing my new design;

FIG. 2 is an elevational view taken from one side thereof, the opposite side being a mirror image of the side shown;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof; and

FIG. 6 is a top plan view thereof.

Schourup, Ralph W.

Patent Priority Assignee Title
D260280, Jun 05 1978 GSW Limited/Limitee Check valve casing
D321241, Jun 16 1988 GP COMPANIES, INC Combined pressure and thermal safety valve
D347465, Aug 26 1993 James Hardie Irrigation Pty Limited Backflow prevention valve
D398955, Sep 27 1995 Sony Corporation Pressure valve
D633924, Jul 06 2004 Motorcycle crankcase ventilation reservoir and dissipater
D693429, Mar 22 2012 Reliance Worldwide Corporation Safety relief valve
D856481, Apr 04 2018 Pressure equalization valve for a cold room
D885522, Dec 20 2018 Combination gas pressure relief valve and safety whistle
D887836, Feb 28 2019 WESTCOTT DISTRIBUTION INC Tall pour spout adapter
D887837, Feb 28 2019 WESTCOTT DISTRIBUTION INC Short pour spout adapter
D888900, Feb 28 2019 WESTCOTT DISTRIBUTION INC Pail adapter
D909545, Aug 07 2020 WESTCOTT DISTRIBUTION INC Adapter
Patent Priority Assignee Title
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