Static pressure control assembly for environmentally controlled buildings and the like

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Description

FIG. 1 is a front perspective view of a static pressure control assembly for environmentally controlled buildings and the like, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof, viewed from the left of FIG. 2;

FIG. 4 is a rear elevational view thereof; and

FIG. 5 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D249943 October 17, 1978 Bartlett
3763400 October 1973 Layton et al.
Other references
  • Superior Electric "Stabiline" .RTM. Automatic Voltage Controls Bulletin SVR666-7, 1978, p. 20-Controller #FR501BMP.
Patent History
Patent number: D265900
Type: Grant
Filed: May 27, 1980
Date of Patent: Aug 24, 1982
Assignee: Shenandoah Manufacturing Co., Inc. (Harrisonburg, VA)
Inventor: William H. Johnson (Harrisonburg, VA)
Primary Examiner: Susan J. Lucas
Law Firm: Mason, Fenwick & Lawrence
Application Number: 6/153,729
Classifications
Current U.S. Class: D13/12
International Classification: D1303;