Communications: electrical – Condition responsive indicating system – With particular coupling link
Patent
1985-01-23
1986-11-18
Crosland, Donnie L.
Communications: electrical
Condition responsive indicating system
With particular coupling link
340531, 340534, 340536, 340345, 34087009, 34087016, 34082506, G08B 108, H04Q 700
Patent
active
046238760
ABSTRACT:
When a transmitter receives an abnormal detection signal from a leaked gas alarm or the like, the transmitter starts the transmitting operation and repeatedly transmits the detection information together with the address information by a radio wave for a constant transmitting operation time interval. A receiver is of the intermittent reception type whereby the receiving operation is performed at every constant idle time, thereby preventing a consumption of a power source of a battery. When the transmitting radio wave is received at a timing of the intermittent reception, the receiving operation is continued and an alarm signal is generated on the basis of the last information which is transmitted due to the single transmitting operation, thereby allowing an alarm representing the leakage of gas to be generated and closing a gas shut-off valve, or the like.
REFERENCES:
patent: 3848231 (1974-11-01), Wootton
patent: 4020477 (1977-04-01), Holland
patent: 4020480 (1977-04-01), Gotley et al.
patent: 4027276 (1977-05-01), Shaughnessy
patent: 4095211 (1978-06-01), Shaughnessy
patent: 4101873 (1978-07-01), Anderson et al.
patent: 4109239 (1978-08-01), Davis
patent: 4153881 (1979-05-01), Permut et al.
patent: 4160246 (1979-07-01), Martin et al.
patent: 4189720 (1980-02-01), Lott
patent: 4191948 (1980-03-01), Stockdale
patent: 4232308 (1980-11-01), Lee et al.
patent: 4322724 (1982-03-01), Grudzinski
patent: 4357602 (1982-11-01), Lemelson
patent: 4400694 (1983-08-01), Wong et al.
patent: 4446454 (1984-05-01), Pyle
patent: 4454509 (1984-06-01), Buennagel et al.
patent: 4462022 (1984-07-01), Stolarczyk
Honma Hiroshi
Shima Hiroshi
Crosland Donnie L.
Hochiki Corporation
LandOfFree
Alarm system to transmit detection information detected by a det does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Alarm system to transmit detection information detected by a det, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alarm system to transmit detection information detected by a det will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1619667