Portable control housing for gas purging system

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Description

FIG. 1 is a top, front, and right side perspective view of a portable control housing for a gas purging system showing our new design;

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

FIG. 3 is a front elevational view;

FIG. 4 is a rear elevational view;

FIG. 5 is a top plan view; and

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
RE28915 July 20, 1976 Ogden et al.
D206458 December 1966 Canterbury
D238181 December 1975 Roller
D275851 October 9, 1984 Bambeck
D282531 February 11, 1986 Schmidt et al.
D296823 July 19, 1988 Kuwa et al.
4562723 January 7, 1986 Hubner
4816822 March 28, 1989 Vache et al.
Patent History
Patent number: D309584
Type: Grant
Filed: Jul 22, 1987
Date of Patent: Jul 31, 1990
Assignee: Semi-jGas Systems, Inc. (San Jose, CA)
Inventors: Jagadisan Krishnamurthy (Mountain View, CA), Noland E. Vogt (Woodside, CA)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Attorney: Thomas E. Schatzel
Application Number: 7/76,554
Classifications
Current U.S. Class: Chemical (12) (D10/81)