Ionization chamber for an electronic smoke detector

Description

FIG. 1 is an isometric view of the ionization chamber.

FIG. 2 is a bottom view of the ionization chamber.

FIG. 3 is a top view of the ionization chamber.

FIG. 4 is an end view of the ionization chamber.

Referenced Cited

U.S. Patent Documents

D228263 August 1973 Jones
D252172 June 19, 1979 Carroll
1334046 March 1920 Opgenorth

Patent History

Patent number: D260378
Type: Grant
Filed: Nov 2, 1978
Date of Patent: Aug 25, 1981
Assignee: Isotec Industries Limited (Toronto)
Inventor: John Mallory (Toronto)
Primary Examiner: W. Stallard
Application Number: 5/957,240

Classifications

Current U.S. Class: D10/104; D10/106; Element Or Attachment (D10/121)
International Classification: D1005;