Water relief valve for a drainage system
FIG. 1 is a perspective view of a water relief valve for a drainage system showing our new design in the open position;
FIG. 2 is a perspective view of our new design in the closed position;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a side elevational plan view thereof, the opposite side being a mirror image thereof, showing our new design in the open position;
FIG. 6 is a side elevational view thereof, the opposite side being a mirror image thereof, showing our new design in the closed position;
FIG. 7 is a bottom perspective view of our new design in the closed position;
FIG. 8 is a bottom perspective view of our new design in the open position; and,
FIG. 9 is a vertical medial sectional view of our new design as shown in FIG. 5.
Type: Grant
Filed: Dec 17, 1993
Date of Patent: Oct 31, 1995
Inventors: Trevor J. Phillips (Lindsay, CA), James E. Petrie (Lindsay, CA)
Primary Examiner: Lou Zarfas
Assistant Examiner: E. Watterson
Attorney: Richard D. Slehofer
Application Number: 0/16,534
