Smoke detector
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FIG. 1 is a perspective view of a smoke detector illustrating one embodiment of my new design;
FIG. 2 is a front elevational view of the smoke detector of FIG. 1;
FIG. 3 is a bottom plan view of the smoke detector of FIG. 1;
FIG. 4 is a rear elevational view of the smoke detector of FIG. 1;
FIG. 5 is a right side elevational view of the smoke detector of FIG. 1;
FIG. 6 is a perspective view of a smoke detector illustrating an alternate embodiment of my new design;
FIG. 7 is a front elevational view of the smoke detector of FIG. 6;
FIG. 8 is a bottom plan view of the smoke detector of FIG. 1;
FIG. 9 is a rear elevational view of the smoke detector of FIG. 6; and,
FIG. 10 is a right side elevational view of the smoke detector of FIG. 6.
The left side elevations of the smoke detectors of FIGS. 1 and 6 are not illustrated, as those elevations are mirror images of the respective right side views. In addition, the backs of the detectors have not been illustrated as they are unadorned and are not part of the design.
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- Nittan Model 2KH advertisement, believed to have been published in Jun., 1992. Tann 5400 Series Smoke Detector, two information sheets, believed to have been published on or about Jun., 1992. System Sensor, Model 1800 2-Wire Systems Detectors, 2 pg. brochure, May 1988. System Sensor, 400 Serial Next Generation Detectors, 2 pg. brochure, 1991. System Sensor, 4451E/5451E2 Plug-in Thermal Detectors; 2 pg. brochure, Jun., 1992. System Sensor, 400 Series Ionization Smoke Detectors; 2 pg. brochure, Oct., 1991. System Sensor, 2851B Series 2/4/6.varies.Wire Systems Detectors, 2 pg. brochure, Oct. 1988. System Sensor, 5551B Intelligent Fixed Temperature Thermal Sensor with Integral Communications, 2 pg. brochure, 1991. System Sensor, 400 Series Plug-in Smoke Detectors, 4 pg. brochure, Jul., 1992.
Type: Grant
Filed: Sep 9, 1992
Date of Patent: Oct 26, 1993
Assignee: Pittway Corporation (Chicago, IL)
Inventor: Kenneth R. Fenne (Glen Ellyn, IL)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Marcus Jackson
Law Firm: Dressler, Goldsmith, Shore, Sutker & Milnamow, Ltd.
Application Number: 7/942,759