Wall-mounted smoke detector

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Description

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

FIG. 2 is an elevational view of one side of the smoke detector, being taken from a sight line below FIG. 1;

FIG. 3 is an elevational view of the smoke detector taken from the left hand side of FIG. 1, the right hand side being a mirror image thereof; and

FIG. 4 is an elevational view thereof taken from the side opposite to that shown in FIG. 2.

Referenced Cited
Other references
  • faraday Catalog & Handbook of Electrical Signals, No. 61-DA, rec'd 1949, p. 5, signal (center right). Hardware Age, Dec. 1975, p. 63, smoke/fire alarm.
Patent History
Patent number: D246635
Type: Grant
Filed: Oct 8, 1976
Date of Patent: Dec 13, 1977
Assignee: National Presto Industries, Inc. (Eau Claire, WI)
Inventors: Melvin H. Boldt (Glenview, IL), Thurber H. Morrison (Evanston, IL), Robert W. Becker (Naperville, IL)
Primary Examiner: Susan J. Lucas
Attorney: John A. Dienner
Application Number: 5/730,791
Classifications
Current U.S. Class: D10/106
International Classification: D1005;