Sprinkler system vacuum breaker cover

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a left top front perspective view of a sprinkler system vacuum breaker cover, showing my new design;

FIG. 2 is a front elevation view, the rear elevation being a mirror image thereof;

FIG. 3 is a left side elevation view, the right side elevation being a mirror image thereof;

FIG. 4 is a top plan view; and,

FIG. 5 is a bottom plan view.

Referenced Cited
U.S. Patent Documents
D76275 September 1928 Wilms
D269697 July 12, 1983 Graham et al.
D323548 January 28, 1992 Rawald
4114647 September 19, 1978 Sturman et al.
4922433 May 1, 1990 Mark
4937732 June 26, 1990 Brundisini
5449117 September 12, 1995 Muderlak et al.
Patent History
Patent number: D384399
Type: Grant
Filed: Sep 1, 1995
Date of Patent: Sep 30, 1997
Inventor: James J. Doke (Longmont, CO)
Primary Examiner: A. Hugoword
Assistant Examiner: Robin V. Taylor
Attorney: William E. Hein
Application Number: 0/43,403
Classifications
Current U.S. Class: Pressure Regulating Or Relieving (D23/235); Fluid Handling Or Treatment Equipment (D23/200); Cover Or Guard (D23/227)
International Classification: 2301;