Detection apparatus and method

Details Detection apparatus and method Detection apparatus and method

1996-02-01

1998-08-11

Hofsass, Jeffery A.

Communications: electrical

Condition responsive indicating system

Specific condition

340628, 340630, 429 96, 429 97, 429 98, G08B 1710

Patent

active

057932956

ABSTRACT:
A detector sensor system for sensing the presence of a toxic gas, such as carbon monoxide and/or smoke whereby a corresponding alarm is sounded. The presence of the gas is detected by passing light through a biomimetic sensing material in which the optical characteristics change in the presence of the target gas. This system includes a housing containing a light emitter, light detector and a mechanism for sounding an alarm. The sensing material is contained in a cell which, together with a battery to power the system, is mounted in a key insertable into the housing. The key may be readily inserted or withdrawn from the housing for replacement purposes. When fully inserted, the key positions the sensing cell means between the light emitter and detector means and brings the battery contacts carried therewith into connection with contacts associated with the system circuitry mounted within the housing.

REFERENCES:
patent: Re30323 (1980-07-01), Tomioka
patent: 2549974 (1951-04-01), Klug
patent: 2553179 (1951-05-01), Farr
patent: 3027552 (1962-03-01), Landis
patent: 3882477 (1975-05-01), Mueller
patent: 4043934 (1977-08-01), Schuler et al.
patent: 4090177 (1978-05-01), Urata et al.
patent: 4144032 (1979-03-01), Davis
patent: 4152551 (1979-05-01), Hiller
patent: 4181439 (1980-01-01), Tresch et al.
patent: 4228428 (1980-10-01), Niedermeyer
patent: 4316184 (1982-02-01), Nagel
patent: 4319234 (1982-03-01), Rice
patent: 4401978 (1983-08-01), Soloman
patent: 4539556 (1985-09-01), Dederich et al.
patent: 4688021 (1987-08-01), Buck et al.
patent: 4769550 (1988-09-01), Dolnick
patent: 4839014 (1989-06-01), Park et al.
patent: 4845474 (1989-07-01), Moore et al.
patent: 4870395 (1989-09-01), Belano
patent: 4959640 (1990-09-01), Hall
patent: 5063164 (1991-11-01), Goldstein
patent: 5103216 (1992-04-01), Sisselman
patent: 5172042 (1992-12-01), Singhal
patent: 5208116 (1993-05-01), Joh
patent: 5280273 (1994-01-01), Goldstein
patent: 5290639 (1994-03-01), Mallory
patent: 5302350 (1994-04-01), Goswami et al.
patent: 5327119 (1994-07-01), Ishii
patent: 5346671 (1994-09-01), Goswami et al.
patent: 5367575 (1994-11-01), Dieken et al.
patent: 5394094 (1995-02-01), Wagner
patent: 5396221 (1995-03-01), Bridges
patent: 5405583 (1995-04-01), Goswami et al.
patent: 5445900 (1995-08-01), Miller Jr.
patent: 5521022 (1996-05-01), Petzl
patent: 5592147 (1997-01-01), Wong
patent: 5596314 (1997-01-01), Goldstein
Drager: Detector tube handbook 4th Edition 1979 pp. 30, 82.
ESP-Alert Carbon Monoxide/Smoke detector.
COSTAR (TM) Carbon Monoxide Alarm, Quantum Group Inc.,.

Affiliated with

Also associated with

Rating

Detection apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Detection apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection apparatus and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-393025