Sprinkler controller

- Hydronic Systems, Inc.
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Description

FIG. 1 is a top perspective view of a sprinkler controller showing our new design.

FIG. 2 is a top plan view thereof.

FIG. 3 is a rear elevation view thereof.

FIG. 4 is a bottom perspective view thereof.

FIG. 5 is a slightly enlarged front perspective view thereof, with the top cover removed.

Referenced Cited
U.S. Patent Documents
D196603 October 1963 Beinert
D212154 September 1968 Burton
D247717 April 11, 1978 Sturman et al.
3708068 January 1973 Tischler
3989066 November 2, 1976 Sturman et al.
3991375 November 9, 1976 Riggs et al.
3991939 November 16, 1976 Maclay
4101786 July 18, 1978 Ruggles et al.
4114647 September 19, 1978 Sturman et al.
4146054 March 27, 1979 Kah, Jr.
4180099 December 25, 1979 Moore
Patent History
Patent number: D258140
Type: Grant
Filed: Jul 25, 1978
Date of Patent: Feb 3, 1981
Assignee: Hydronic Systems, Inc. (Woodland Hills, CA)
Inventors: Oded E. Sturman (Northridge, CA), Benjamin Grill (Northridge, CA)
Primary Examiner: James R. Largen
Attorney: Arthur Freilich
Application Number: 5/928,007
Classifications
Current U.S. Class: D23/38
International Classification: D2301;