Pressure valve

Description

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

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a right elevational view thereof.

The broken lines showing the interior structures are for illustrative purposes only and form no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D96691 August 1935 Nelson
D97858 December 1935 MacCowan
D222802 January 1972 Siebel
D242709 December 14, 1976 Schourup
D263163 February 23, 1982 Olde
D266019 August 31, 1982 Crossman
D325428 April 14, 1992 Vitsur
D347465 May 31, 1994 Luppino
729027 May 1903 Wilson
1356298 October 1920 McGregor
2995148 August 1961 Novak et al.
4953584 September 4, 1990 Vegso
Foreign Patent Documents
1179894 May 1959 FRX
1278603 November 1961 FRX
337694 November 1930 GBX
Other references
  • Anderson Metals Corporation Cat. 6187 .COPYRGT.1987; p. 35; center column: Evaporative Cooler Fitting.
Patent History
Patent number: D398955
Type: Grant
Filed: Mar 26, 1996
Date of Patent: Sep 29, 1998
Inventor: Tatsuo Shimizu (Shimosugishita, Takakura, Hiwada-machi, Koriyama-shi, Fukushima)
Primary Examiner: Ted Shooman
Assistant Examiner: C. Tuttle
Law Firm: Foley & Lardner
Application Number: 0/52,192
Classifications
Current U.S. Class: Pressure Regulating Or Relieving (D23/235); Symmetrical On One Axis (D23/248)
International Classification: 2301;