Smoke detector

- Pittway Corporation
Description

FIG. 1 is a top plan view of a smoke detector showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a second embodiment of the smoke detector, wherein the only difference resides in the design of the top portion as shown;

FIG. 5 is a side elevational view thereof;

FIG. 6 is a third embodiment of the smoke detector wherein the only difference resides in the design of the top portion as shown;

FIG. 7 is a fourth embodiment of the smoke detector wherein the only difference resides in the design of the top portion as shown;

FIG. 8 is a sectional view taken from line 8--8 in FIG. 7;

FIG. 9 is a fifth embodiment of the smoke detector, wherein the only difference resides in the design of the top portion as shown; and

FIG. 10 is a sectional view taken from line 10--10 in FIG. 9.

The conventional wire grille, partially shown in FIGS. 2 and 5, is understood to cover the entire area as indicated.

Referenced Cited
U.S. Patent Documents
D225379 December 1972 Gallagher
D235857 July 1975 Hart
D240120 June 1976 Pasquarette
D246958 January 17, 1978 Rakocy et al.
Patent History
Patent number: D276417
Type: Grant
Filed: Sep 16, 1982
Date of Patent: Nov 20, 1984
Assignee: Pittway Corporation (Aurora, IL)
Inventor: Kenneth R. Fenne (Glen Ellyn, IL)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Suzanne N. Gitlin
Law Firm: Emrich & Dithmar
Application Number: 6/418,631
Classifications
Current U.S. Class: D10/106