In-line fire detector of a fire protection and alarm system

Details In-line fire detector of a fire protection and alarm system In-line fire detector of a fire protection and alarm system

1983-05-31

1985-01-29

Envall, Jr., Roy N.

Electrical resistors

Resistance value responsive to a condition

Ambient temperature

338214, 340596, H01B 700, H01B 1734, G01M 316

Patent

active

044969309

ABSTRACT:
A fire detector is provided with an electric insulator consisting of short segments of preferably a ceramic pipe disposed end-to-end within the space between an inside cylindrical electrode and cylindrical outside electrode. The inside electrode together with the insulator segments are covered with a thin salt-based layer and are disposed in the interior of the outside electrode so that between the insulator segments and the internal wall of the outside electrode an air space is formed along the length of the detector, whereby the insulator segments each provide a point-type contact between the internal wall of the outside electrode and the thin salt-based layer.

REFERENCES:
patent: 2275873 (1942-03-01), Turenne
patent: 2413125 (1946-12-01), Walbridge
patent: 2477348 (1947-07-01), Postal
patent: 2566335 (1951-09-01), Joerreu
patent: 2596285 (1952-05-01), Peters
patent: 2936434 (1960-05-01), Postal

Affiliated with

Also associated with

Rating

In-line fire detector of a fire protection and alarm system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with In-line fire detector of a fire protection and alarm system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and In-line fire detector of a fire protection and alarm system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-508940