Vacuum breaker

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Description

FIG. 1 is a perspective view of a vacuum breaker, showing my new design;

FIG. 2 is a side elevation view thereof;

FIG. 3 is a front view thereof; and,

FIG. 4 is a top plan view thereof.

The broken lines shown in FIGS. 1-4 are for illustrative purposes only and form no part of the claimed design.

Claims

The ornamental design for a vacuum breaker, as shown and described.

Referenced Cited
U.S. Patent Documents
2028101 January 1936 Fredrickson
2600731 June 1952 Carlton et al.
D278740 May 7, 1985 Bolgert
D309173 July 10, 1990 Stipe
D319866 September 10, 1991 Rogers
5360029 November 1, 1994 Goughneour
Patent History
Patent number: D531697
Type: Grant
Filed: Jun 29, 2005
Date of Patent: Nov 7, 2006
Assignee: Watts Drainage Products Inc. (North Andover, MA)
Inventor: Steven Hofmann (Haverhill, MA)
Primary Examiner: Ian Simmons
Assistant Examiner: Maurice Stevens
Attorney: Fish & Richardson P.C.
Application Number: 29/233,185
Classifications
Current U.S. Class: Check (D23/237)