Relief valve

- Corrupipe CC
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Description

FIG. 1 is a plan view from above;

FIG. 2 is a oblique view from below;

FIG. 3 is a plan view from below;

FIG. 4 is a oblique view from above;

FIG. 5 end view; and,

FIG. 6 elevational view from side.

Referenced Cited
U.S. Patent Documents
D226431 March 1973 Embury
D226952 May 1973 Brindisi
D242710 December 14, 1976 Schourup
D317494 June 11, 1991 Miyake et al.
5769116 June 23, 1998 Yokota et al.
Patent History
Patent number: D417905
Type: Grant
Filed: May 22, 1998
Date of Patent: Dec 21, 1999
Assignee: Corrupipe CC (Gauteng)
Inventors: Dieter H. F. Kallenbach (Linbro Park), Manfred Stahle (Linbro Park)
Primary Examiner: Robin V. Taylor
Law Firm: Marshall, O'Toole, Gerstein, Murray & Borun
Application Number: 0/88,432
Classifications
Current U.S. Class: Pressure Regulating Or Relieving (D23/235)
International Classification: 2301;