Ionization sensor for smoke detector

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view from above of the ionization sensor for smoke detector embodying my new design;

FIG. 2 is a perspective view thereof from below;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevation view thereof; and

FIG. 5 is a side elevation view thereof.

Referenced Cited
U.S. Patent Documents
3105229 September 1963 Sturm
3345875 October 1967 Lindberg
3551908 December 1970 Landon
Foreign Patent Documents
2,314,567 October 1974 DT
Patent History
Patent number: D245588
Type: Grant
Filed: Mar 2, 1976
Date of Patent: Aug 30, 1977
Inventor: Henri H. Hoge (Baltimore, MD)
Primary Examiner: Susie J. Mercer
Attorney: Howard L. Rose
Application Number: 5/663,219
Classifications
Current U.S. Class: Element Or Attachment (D10/121)
International Classification: D1005;