Personal monitoring device

Communications: electrical – Condition responsive indicating system – Specific condition

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

340529, G08B 2100

Patent

active

043597238

ABSTRACT:
A device for monitoring the physical activity of persons comprises a movement detector 8 electrically coupled to drive time-delay circuits [C2, R2, TR6, R6,][C4, R4, TR4, R5][C5, R7, TR8, R8,] the outputs of which are connected to drive an alarm device 10 such that in the presence of the movements detected by detector 8 the alarm device 10 is held in its OFF condition and is switched to its ON condition in the absence of such movements after a pertaining time-delay. The time-delay circuits are respectively arranged to provide time-delays of 30 seconds, 6 seconds, 40 seconds, with the first and second time-delay circuits being connected in series and the third time-delay circuit connected in parallel with the first two so that if the first timer circuit activates the alarm the second timer circuit provides a delay prior to latching of the alarm during which the alarm can be manually cancelled while the third timer circuit provides for fail-safe operation. The movement detector 8 comprises at least one tubular housing 5, containing a freely movable ball 5C and means for establishing an electrical output signal according to movement of the ball 5C or an acousto/electrical transducer or a mechanical/electric transducer. A pulse shaping and isolating circuit C1, R1 is located at the output of the detector 8 which provides pulses of predetermined amplitude and duration to the time-delay circuits within time intervals determined by the movement detector 8.

REFERENCES:
patent: 1761681 (1930-06-01), Reis, Jr. et al.
patent: 4110741 (1978-08-01), Hubert et al.
patent: 4196429 (1980-04-01), Davis
patent: 4234876 (1980-11-01), Murai

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Personal monitoring device does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-1438030

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.