Microwave and passive infrared intrusion detector

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Description

FIG. 1 is a front, left side perspective view of a microwave and passive infrared intrusion detector showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D261740 November 10, 1981 Lederer
D275464 September 11, 1984 Beeson et al.
D277652 February 19, 1985 Kahl, Jr. et al.
D286383 October 28, 1986 Kotlicki et al.
4604524 August 5, 1986 Kotlicki et al.
Patent History
Patent number: D302952
Type: Grant
Filed: Sep 23, 1986
Date of Patent: Aug 22, 1989
Assignee: Napco Security Systems, Inc. (Amityville, NY)
Inventors: Richard Soloway (Lido Beach, NY), Richard Farrell (West Babylon, NY)
Primary Examiner: Susan J. Lucas
Attorney: Arthur L. Plevy
Application Number: 6/910,765
Classifications
Current U.S. Class: D10/106