Electricity: circuit makers and breakers – Special application
Patent
1980-07-03
1984-10-09
Shepperd, John W.
Electricity: circuit makers and breakers
Special application
200 86R, 200241, 200242, 200283, 272 4, H01H 118, H01H 302
Patent
active
044763581
ABSTRACT:
A not-watertight touch pad for swimming competitions mounted partially submersed on the finishing wall of a swimming pool. It includes two plates located in front of each other, the front one of which is somehow perforated and loosely inserted in a frame consisting of channel sections on the four sides and movable towards the insulated back plate. Resting between the two plates, many turns of parallel conductive strips are bonded onto the back plate, whereas some hundreds of conductive springs shaped as seagull wings are welded onto the central strips. These springs are mounted perpendicularly to the strips and are acting as spacers between the two plates and as electrical contacts between the strips as soon as any pressure is applied on the front plate.
REFERENCES:
patent: 459984 (1891-09-01), Wilson
patent: 1318478 (1919-10-01), Buckles
patent: 1614887 (1927-01-01), Hill
patent: 3250882 (1966-05-01), Campbell et al.
patent: 3745275 (1973-07-01), Degiez
patent: 3784768 (1974-01-01), Hunt
patent: 3916214 (1975-10-01), Coble, Jr. et al.
patent: 3944763 (1976-03-01), Beierwaltes
patent: 3967084 (1976-06-01), Pounds
patent: 3996429 (1976-12-01), Chu et al.
patent: 4033030 (1977-07-01), Robinson et al.
patent: 4071718 (1978-01-01), Harden
patent: 4086451 (1978-04-01), Boulanger
LandOfFree
Touch pad indicating arrival during swimming contests does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Touch pad indicating arrival during swimming contests, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Touch pad indicating arrival during swimming contests will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1602735